mirror of
https://github.com/git/git
synced 2024-10-29 17:08:46 +00:00
6047b28eb7
Split key function and data structure definitions out of cache.h to new header files and adjust the users. * en/header-split-cleanup: csum-file.h: remove unnecessary inclusion of cache.h write-or-die.h: move declarations for write-or-die.c functions from cache.h treewide: remove cache.h inclusion due to setup.h changes setup.h: move declarations for setup.c functions from cache.h treewide: remove cache.h inclusion due to environment.h changes environment.h: move declarations for environment.c functions from cache.h treewide: remove unnecessary includes of cache.h wrapper.h: move declarations for wrapper.c functions from cache.h path.h: move function declarations for path.c functions from cache.h cache.h: remove expand_user_path() abspath.h: move absolute path functions from cache.h environment: move comment_line_char from cache.h treewide: remove unnecessary cache.h inclusion from several sources treewide: remove unnecessary inclusion of gettext.h treewide: be explicit about dependence on gettext.h treewide: remove unnecessary cache.h inclusion from a few headers
4369 lines
121 KiB
C
4369 lines
121 KiB
C
#include "git-compat-util.h"
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#include "alloc.h"
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#include "config.h"
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#include "environment.h"
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#include "gettext.h"
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#include "hex.h"
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#include "object-store.h"
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#include "tag.h"
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#include "blob.h"
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#include "tree.h"
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#include "commit.h"
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#include "diff.h"
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#include "diff-merges.h"
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#include "refs.h"
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#include "revision.h"
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#include "repository.h"
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#include "graph.h"
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#include "grep.h"
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#include "reflog-walk.h"
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#include "patch-ids.h"
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#include "decorate.h"
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#include "log-tree.h"
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#include "string-list.h"
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#include "line-log.h"
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#include "mailmap.h"
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#include "commit-slab.h"
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#include "dir.h"
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#include "cache-tree.h"
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#include "bisect.h"
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#include "packfile.h"
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#include "worktree.h"
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#include "setup.h"
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#include "strvec.h"
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#include "commit-reach.h"
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#include "commit-graph.h"
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#include "prio-queue.h"
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#include "hashmap.h"
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#include "utf8.h"
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#include "bloom.h"
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#include "json-writer.h"
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#include "list-objects-filter-options.h"
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#include "resolve-undo.h"
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#include "parse-options.h"
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volatile show_early_output_fn_t show_early_output;
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static const char *term_bad;
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static const char *term_good;
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implement_shared_commit_slab(revision_sources, char *);
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static inline int want_ancestry(const struct rev_info *revs);
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void show_object_with_name(FILE *out, struct object *obj, const char *name)
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{
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fprintf(out, "%s ", oid_to_hex(&obj->oid));
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for (const char *p = name; *p && *p != '\n'; p++)
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fputc(*p, out);
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fputc('\n', out);
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}
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static void mark_blob_uninteresting(struct blob *blob)
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{
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if (!blob)
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return;
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if (blob->object.flags & UNINTERESTING)
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return;
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blob->object.flags |= UNINTERESTING;
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}
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static void mark_tree_contents_uninteresting(struct repository *r,
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struct tree *tree)
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{
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struct tree_desc desc;
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struct name_entry entry;
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if (parse_tree_gently(tree, 1) < 0)
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return;
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init_tree_desc(&desc, tree->buffer, tree->size);
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while (tree_entry(&desc, &entry)) {
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switch (object_type(entry.mode)) {
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case OBJ_TREE:
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mark_tree_uninteresting(r, lookup_tree(r, &entry.oid));
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break;
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case OBJ_BLOB:
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mark_blob_uninteresting(lookup_blob(r, &entry.oid));
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break;
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default:
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/* Subproject commit - not in this repository */
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break;
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}
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}
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/*
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* We don't care about the tree any more
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* after it has been marked uninteresting.
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*/
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free_tree_buffer(tree);
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}
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void mark_tree_uninteresting(struct repository *r, struct tree *tree)
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{
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struct object *obj;
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if (!tree)
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return;
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obj = &tree->object;
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if (obj->flags & UNINTERESTING)
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return;
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obj->flags |= UNINTERESTING;
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mark_tree_contents_uninteresting(r, tree);
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}
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struct path_and_oids_entry {
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struct hashmap_entry ent;
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char *path;
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struct oidset trees;
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};
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static int path_and_oids_cmp(const void *hashmap_cmp_fn_data UNUSED,
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const struct hashmap_entry *eptr,
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const struct hashmap_entry *entry_or_key,
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const void *keydata UNUSED)
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{
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const struct path_and_oids_entry *e1, *e2;
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e1 = container_of(eptr, const struct path_and_oids_entry, ent);
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e2 = container_of(entry_or_key, const struct path_and_oids_entry, ent);
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return strcmp(e1->path, e2->path);
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}
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static void paths_and_oids_clear(struct hashmap *map)
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{
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struct hashmap_iter iter;
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struct path_and_oids_entry *entry;
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hashmap_for_each_entry(map, &iter, entry, ent /* member name */) {
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oidset_clear(&entry->trees);
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free(entry->path);
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}
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hashmap_clear_and_free(map, struct path_and_oids_entry, ent);
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}
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static void paths_and_oids_insert(struct hashmap *map,
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const char *path,
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const struct object_id *oid)
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{
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int hash = strhash(path);
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struct path_and_oids_entry key;
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struct path_and_oids_entry *entry;
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hashmap_entry_init(&key.ent, hash);
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/* use a shallow copy for the lookup */
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key.path = (char *)path;
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oidset_init(&key.trees, 0);
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entry = hashmap_get_entry(map, &key, ent, NULL);
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if (!entry) {
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CALLOC_ARRAY(entry, 1);
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hashmap_entry_init(&entry->ent, hash);
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entry->path = xstrdup(key.path);
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oidset_init(&entry->trees, 16);
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hashmap_put(map, &entry->ent);
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}
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oidset_insert(&entry->trees, oid);
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}
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static void add_children_by_path(struct repository *r,
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struct tree *tree,
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struct hashmap *map)
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{
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struct tree_desc desc;
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struct name_entry entry;
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if (!tree)
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return;
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if (parse_tree_gently(tree, 1) < 0)
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return;
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init_tree_desc(&desc, tree->buffer, tree->size);
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while (tree_entry(&desc, &entry)) {
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switch (object_type(entry.mode)) {
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case OBJ_TREE:
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paths_and_oids_insert(map, entry.path, &entry.oid);
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if (tree->object.flags & UNINTERESTING) {
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struct tree *child = lookup_tree(r, &entry.oid);
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if (child)
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child->object.flags |= UNINTERESTING;
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}
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break;
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case OBJ_BLOB:
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if (tree->object.flags & UNINTERESTING) {
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struct blob *child = lookup_blob(r, &entry.oid);
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if (child)
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child->object.flags |= UNINTERESTING;
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}
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break;
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default:
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/* Subproject commit - not in this repository */
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break;
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}
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}
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free_tree_buffer(tree);
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}
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void mark_trees_uninteresting_sparse(struct repository *r,
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struct oidset *trees)
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{
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unsigned has_interesting = 0, has_uninteresting = 0;
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struct hashmap map = HASHMAP_INIT(path_and_oids_cmp, NULL);
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struct hashmap_iter map_iter;
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struct path_and_oids_entry *entry;
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struct object_id *oid;
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struct oidset_iter iter;
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oidset_iter_init(trees, &iter);
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while ((!has_interesting || !has_uninteresting) &&
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(oid = oidset_iter_next(&iter))) {
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struct tree *tree = lookup_tree(r, oid);
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if (!tree)
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continue;
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if (tree->object.flags & UNINTERESTING)
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has_uninteresting = 1;
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else
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has_interesting = 1;
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}
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/* Do not walk unless we have both types of trees. */
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if (!has_uninteresting || !has_interesting)
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return;
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oidset_iter_init(trees, &iter);
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while ((oid = oidset_iter_next(&iter))) {
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struct tree *tree = lookup_tree(r, oid);
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add_children_by_path(r, tree, &map);
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}
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hashmap_for_each_entry(&map, &map_iter, entry, ent /* member name */)
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mark_trees_uninteresting_sparse(r, &entry->trees);
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paths_and_oids_clear(&map);
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}
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struct commit_stack {
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struct commit **items;
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size_t nr, alloc;
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};
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#define COMMIT_STACK_INIT { 0 }
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static void commit_stack_push(struct commit_stack *stack, struct commit *commit)
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{
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ALLOC_GROW(stack->items, stack->nr + 1, stack->alloc);
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stack->items[stack->nr++] = commit;
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}
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static struct commit *commit_stack_pop(struct commit_stack *stack)
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{
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return stack->nr ? stack->items[--stack->nr] : NULL;
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}
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static void commit_stack_clear(struct commit_stack *stack)
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{
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FREE_AND_NULL(stack->items);
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stack->nr = stack->alloc = 0;
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}
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static void mark_one_parent_uninteresting(struct rev_info *revs, struct commit *commit,
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struct commit_stack *pending)
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{
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struct commit_list *l;
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if (commit->object.flags & UNINTERESTING)
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return;
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commit->object.flags |= UNINTERESTING;
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/*
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* Normally we haven't parsed the parent
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* yet, so we won't have a parent of a parent
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* here. However, it may turn out that we've
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* reached this commit some other way (where it
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* wasn't uninteresting), in which case we need
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* to mark its parents recursively too..
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*/
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for (l = commit->parents; l; l = l->next) {
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commit_stack_push(pending, l->item);
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if (revs && revs->exclude_first_parent_only)
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break;
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}
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}
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void mark_parents_uninteresting(struct rev_info *revs, struct commit *commit)
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{
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struct commit_stack pending = COMMIT_STACK_INIT;
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struct commit_list *l;
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for (l = commit->parents; l; l = l->next) {
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mark_one_parent_uninteresting(revs, l->item, &pending);
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if (revs && revs->exclude_first_parent_only)
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break;
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}
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while (pending.nr > 0)
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mark_one_parent_uninteresting(revs, commit_stack_pop(&pending),
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&pending);
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commit_stack_clear(&pending);
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}
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static void add_pending_object_with_path(struct rev_info *revs,
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struct object *obj,
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const char *name, unsigned mode,
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const char *path)
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{
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struct interpret_branch_name_options options = { 0 };
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if (!obj)
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return;
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if (revs->no_walk && (obj->flags & UNINTERESTING))
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revs->no_walk = 0;
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if (revs->reflog_info && obj->type == OBJ_COMMIT) {
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struct strbuf buf = STRBUF_INIT;
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size_t namelen = strlen(name);
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int len = repo_interpret_branch_name(the_repository, name,
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namelen, &buf, &options);
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if (0 < len && len < namelen && buf.len)
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strbuf_addstr(&buf, name + len);
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add_reflog_for_walk(revs->reflog_info,
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(struct commit *)obj,
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buf.buf[0] ? buf.buf: name);
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strbuf_release(&buf);
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return; /* do not add the commit itself */
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}
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add_object_array_with_path(obj, name, &revs->pending, mode, path);
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}
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static void add_pending_object_with_mode(struct rev_info *revs,
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struct object *obj,
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const char *name, unsigned mode)
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{
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add_pending_object_with_path(revs, obj, name, mode, NULL);
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}
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void add_pending_object(struct rev_info *revs,
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struct object *obj, const char *name)
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{
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add_pending_object_with_mode(revs, obj, name, S_IFINVALID);
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}
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void add_head_to_pending(struct rev_info *revs)
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{
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struct object_id oid;
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struct object *obj;
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if (repo_get_oid(the_repository, "HEAD", &oid))
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return;
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obj = parse_object(revs->repo, &oid);
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if (!obj)
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return;
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add_pending_object(revs, obj, "HEAD");
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}
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static struct object *get_reference(struct rev_info *revs, const char *name,
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const struct object_id *oid,
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unsigned int flags)
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{
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struct object *object;
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object = parse_object_with_flags(revs->repo, oid,
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revs->verify_objects ? 0 :
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PARSE_OBJECT_SKIP_HASH_CHECK);
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if (!object) {
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if (revs->ignore_missing)
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return object;
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if (revs->exclude_promisor_objects && is_promisor_object(oid))
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return NULL;
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die("bad object %s", name);
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}
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object->flags |= flags;
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return object;
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}
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void add_pending_oid(struct rev_info *revs, const char *name,
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const struct object_id *oid, unsigned int flags)
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{
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struct object *object = get_reference(revs, name, oid, flags);
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add_pending_object(revs, object, name);
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}
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static struct commit *handle_commit(struct rev_info *revs,
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struct object_array_entry *entry)
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{
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struct object *object = entry->item;
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const char *name = entry->name;
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const char *path = entry->path;
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unsigned int mode = entry->mode;
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unsigned long flags = object->flags;
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/*
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* Tag object? Look what it points to..
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*/
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while (object->type == OBJ_TAG) {
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struct tag *tag = (struct tag *) object;
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if (revs->tag_objects && !(flags & UNINTERESTING))
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add_pending_object(revs, object, tag->tag);
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object = parse_object(revs->repo, get_tagged_oid(tag));
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if (!object) {
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if (revs->ignore_missing_links || (flags & UNINTERESTING))
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return NULL;
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if (revs->exclude_promisor_objects &&
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is_promisor_object(&tag->tagged->oid))
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return NULL;
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die("bad object %s", oid_to_hex(&tag->tagged->oid));
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}
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object->flags |= flags;
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/*
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* We'll handle the tagged object by looping or dropping
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* through to the non-tag handlers below. Do not
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* propagate path data from the tag's pending entry.
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*/
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path = NULL;
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mode = 0;
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}
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/*
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* Commit object? Just return it, we'll do all the complex
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* reachability crud.
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*/
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if (object->type == OBJ_COMMIT) {
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struct commit *commit = (struct commit *)object;
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if (repo_parse_commit(revs->repo, commit) < 0)
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die("unable to parse commit %s", name);
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if (flags & UNINTERESTING) {
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mark_parents_uninteresting(revs, commit);
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if (!revs->topo_order || !generation_numbers_enabled(the_repository))
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revs->limited = 1;
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}
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if (revs->sources) {
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char **slot = revision_sources_at(revs->sources, commit);
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if (!*slot)
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*slot = xstrdup(name);
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}
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return commit;
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}
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/*
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* Tree object? Either mark it uninteresting, or add it
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* to the list of objects to look at later..
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*/
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if (object->type == OBJ_TREE) {
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struct tree *tree = (struct tree *)object;
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if (!revs->tree_objects)
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return NULL;
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if (flags & UNINTERESTING) {
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mark_tree_contents_uninteresting(revs->repo, tree);
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return NULL;
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}
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add_pending_object_with_path(revs, object, name, mode, path);
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return NULL;
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}
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|
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/*
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* Blob object? You know the drill by now..
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*/
|
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if (object->type == OBJ_BLOB) {
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if (!revs->blob_objects)
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return NULL;
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if (flags & UNINTERESTING)
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return NULL;
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add_pending_object_with_path(revs, object, name, mode, path);
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return NULL;
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}
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die("%s is unknown object", name);
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}
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|
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static int everybody_uninteresting(struct commit_list *orig,
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struct commit **interesting_cache)
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|
{
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|
struct commit_list *list = orig;
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|
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if (*interesting_cache) {
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struct commit *commit = *interesting_cache;
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if (!(commit->object.flags & UNINTERESTING))
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return 0;
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}
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|
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while (list) {
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struct commit *commit = list->item;
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list = list->next;
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if (commit->object.flags & UNINTERESTING)
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continue;
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*interesting_cache = commit;
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return 0;
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}
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return 1;
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}
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|
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/*
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* A definition of "relevant" commit that we can use to simplify limited graphs
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* by eliminating side branches.
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|
*
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* A "relevant" commit is one that is !UNINTERESTING (ie we are including it
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* in our list), or that is a specified BOTTOM commit. Then after computing
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|
* a limited list, during processing we can generally ignore boundary merges
|
|
* coming from outside the graph, (ie from irrelevant parents), and treat
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|
* those merges as if they were single-parent. TREESAME is defined to consider
|
|
* only relevant parents, if any. If we are TREESAME to our on-graph parents,
|
|
* we don't care if we were !TREESAME to non-graph parents.
|
|
*
|
|
* Treating bottom commits as relevant ensures that a limited graph's
|
|
* connection to the actual bottom commit is not viewed as a side branch, but
|
|
* treated as part of the graph. For example:
|
|
*
|
|
* ....Z...A---X---o---o---B
|
|
* . /
|
|
* W---Y
|
|
*
|
|
* When computing "A..B", the A-X connection is at least as important as
|
|
* Y-X, despite A being flagged UNINTERESTING.
|
|
*
|
|
* And when computing --ancestry-path "A..B", the A-X connection is more
|
|
* important than Y-X, despite both A and Y being flagged UNINTERESTING.
|
|
*/
|
|
static inline int relevant_commit(struct commit *commit)
|
|
{
|
|
return (commit->object.flags & (UNINTERESTING | BOTTOM)) != UNINTERESTING;
|
|
}
|
|
|
|
/*
|
|
* Return a single relevant commit from a parent list. If we are a TREESAME
|
|
* commit, and this selects one of our parents, then we can safely simplify to
|
|
* that parent.
|
|
*/
|
|
static struct commit *one_relevant_parent(const struct rev_info *revs,
|
|
struct commit_list *orig)
|
|
{
|
|
struct commit_list *list = orig;
|
|
struct commit *relevant = NULL;
|
|
|
|
if (!orig)
|
|
return NULL;
|
|
|
|
/*
|
|
* For 1-parent commits, or if first-parent-only, then return that
|
|
* first parent (even if not "relevant" by the above definition).
|
|
* TREESAME will have been set purely on that parent.
|
|
*/
|
|
if (revs->first_parent_only || !orig->next)
|
|
return orig->item;
|
|
|
|
/*
|
|
* For multi-parent commits, identify a sole relevant parent, if any.
|
|
* If we have only one relevant parent, then TREESAME will be set purely
|
|
* with regard to that parent, and we can simplify accordingly.
|
|
*
|
|
* If we have more than one relevant parent, or no relevant parents
|
|
* (and multiple irrelevant ones), then we can't select a parent here
|
|
* and return NULL.
|
|
*/
|
|
while (list) {
|
|
struct commit *commit = list->item;
|
|
list = list->next;
|
|
if (relevant_commit(commit)) {
|
|
if (relevant)
|
|
return NULL;
|
|
relevant = commit;
|
|
}
|
|
}
|
|
return relevant;
|
|
}
|
|
|
|
/*
|
|
* The goal is to get REV_TREE_NEW as the result only if the
|
|
* diff consists of all '+' (and no other changes), REV_TREE_OLD
|
|
* if the whole diff is removal of old data, and otherwise
|
|
* REV_TREE_DIFFERENT (of course if the trees are the same we
|
|
* want REV_TREE_SAME).
|
|
*
|
|
* The only time we care about the distinction is when
|
|
* remove_empty_trees is in effect, in which case we care only about
|
|
* whether the whole change is REV_TREE_NEW, or if there's another type
|
|
* of change. Which means we can stop the diff early in either of these
|
|
* cases:
|
|
*
|
|
* 1. We're not using remove_empty_trees at all.
|
|
*
|
|
* 2. We saw anything except REV_TREE_NEW.
|
|
*/
|
|
#define REV_TREE_SAME 0
|
|
#define REV_TREE_NEW 1 /* Only new files */
|
|
#define REV_TREE_OLD 2 /* Only files removed */
|
|
#define REV_TREE_DIFFERENT 3 /* Mixed changes */
|
|
static int tree_difference = REV_TREE_SAME;
|
|
|
|
static void file_add_remove(struct diff_options *options,
|
|
int addremove,
|
|
unsigned mode UNUSED,
|
|
const struct object_id *oid UNUSED,
|
|
int oid_valid UNUSED,
|
|
const char *fullpath UNUSED,
|
|
unsigned dirty_submodule UNUSED)
|
|
{
|
|
int diff = addremove == '+' ? REV_TREE_NEW : REV_TREE_OLD;
|
|
struct rev_info *revs = options->change_fn_data;
|
|
|
|
tree_difference |= diff;
|
|
if (!revs->remove_empty_trees || tree_difference != REV_TREE_NEW)
|
|
options->flags.has_changes = 1;
|
|
}
|
|
|
|
static void file_change(struct diff_options *options,
|
|
unsigned old_mode UNUSED,
|
|
unsigned new_mode UNUSED,
|
|
const struct object_id *old_oid UNUSED,
|
|
const struct object_id *new_oid UNUSED,
|
|
int old_oid_valid UNUSED,
|
|
int new_oid_valid UNUSED,
|
|
const char *fullpath UNUSED,
|
|
unsigned old_dirty_submodule UNUSED,
|
|
unsigned new_dirty_submodule UNUSED)
|
|
{
|
|
tree_difference = REV_TREE_DIFFERENT;
|
|
options->flags.has_changes = 1;
|
|
}
|
|
|
|
static int bloom_filter_atexit_registered;
|
|
static unsigned int count_bloom_filter_maybe;
|
|
static unsigned int count_bloom_filter_definitely_not;
|
|
static unsigned int count_bloom_filter_false_positive;
|
|
static unsigned int count_bloom_filter_not_present;
|
|
|
|
static void trace2_bloom_filter_statistics_atexit(void)
|
|
{
|
|
struct json_writer jw = JSON_WRITER_INIT;
|
|
|
|
jw_object_begin(&jw, 0);
|
|
jw_object_intmax(&jw, "filter_not_present", count_bloom_filter_not_present);
|
|
jw_object_intmax(&jw, "maybe", count_bloom_filter_maybe);
|
|
jw_object_intmax(&jw, "definitely_not", count_bloom_filter_definitely_not);
|
|
jw_object_intmax(&jw, "false_positive", count_bloom_filter_false_positive);
|
|
jw_end(&jw);
|
|
|
|
trace2_data_json("bloom", the_repository, "statistics", &jw);
|
|
|
|
jw_release(&jw);
|
|
}
|
|
|
|
static int forbid_bloom_filters(struct pathspec *spec)
|
|
{
|
|
if (spec->has_wildcard)
|
|
return 1;
|
|
if (spec->nr > 1)
|
|
return 1;
|
|
if (spec->magic & ~PATHSPEC_LITERAL)
|
|
return 1;
|
|
if (spec->nr && (spec->items[0].magic & ~PATHSPEC_LITERAL))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void prepare_to_use_bloom_filter(struct rev_info *revs)
|
|
{
|
|
struct pathspec_item *pi;
|
|
char *path_alloc = NULL;
|
|
const char *path, *p;
|
|
size_t len;
|
|
int path_component_nr = 1;
|
|
|
|
if (!revs->commits)
|
|
return;
|
|
|
|
if (forbid_bloom_filters(&revs->prune_data))
|
|
return;
|
|
|
|
repo_parse_commit(revs->repo, revs->commits->item);
|
|
|
|
revs->bloom_filter_settings = get_bloom_filter_settings(revs->repo);
|
|
if (!revs->bloom_filter_settings)
|
|
return;
|
|
|
|
if (!revs->pruning.pathspec.nr)
|
|
return;
|
|
|
|
pi = &revs->pruning.pathspec.items[0];
|
|
|
|
/* remove single trailing slash from path, if needed */
|
|
if (pi->len > 0 && pi->match[pi->len - 1] == '/') {
|
|
path_alloc = xmemdupz(pi->match, pi->len - 1);
|
|
path = path_alloc;
|
|
} else
|
|
path = pi->match;
|
|
|
|
len = strlen(path);
|
|
if (!len) {
|
|
revs->bloom_filter_settings = NULL;
|
|
free(path_alloc);
|
|
return;
|
|
}
|
|
|
|
p = path;
|
|
while (*p) {
|
|
/*
|
|
* At this point, the path is normalized to use Unix-style
|
|
* path separators. This is required due to how the
|
|
* changed-path Bloom filters store the paths.
|
|
*/
|
|
if (*p == '/')
|
|
path_component_nr++;
|
|
p++;
|
|
}
|
|
|
|
revs->bloom_keys_nr = path_component_nr;
|
|
ALLOC_ARRAY(revs->bloom_keys, revs->bloom_keys_nr);
|
|
|
|
fill_bloom_key(path, len, &revs->bloom_keys[0],
|
|
revs->bloom_filter_settings);
|
|
path_component_nr = 1;
|
|
|
|
p = path + len - 1;
|
|
while (p > path) {
|
|
if (*p == '/')
|
|
fill_bloom_key(path, p - path,
|
|
&revs->bloom_keys[path_component_nr++],
|
|
revs->bloom_filter_settings);
|
|
p--;
|
|
}
|
|
|
|
if (trace2_is_enabled() && !bloom_filter_atexit_registered) {
|
|
atexit(trace2_bloom_filter_statistics_atexit);
|
|
bloom_filter_atexit_registered = 1;
|
|
}
|
|
|
|
free(path_alloc);
|
|
}
|
|
|
|
static int check_maybe_different_in_bloom_filter(struct rev_info *revs,
|
|
struct commit *commit)
|
|
{
|
|
struct bloom_filter *filter;
|
|
int result = 1, j;
|
|
|
|
if (!revs->repo->objects->commit_graph)
|
|
return -1;
|
|
|
|
if (commit_graph_generation(commit) == GENERATION_NUMBER_INFINITY)
|
|
return -1;
|
|
|
|
filter = get_bloom_filter(revs->repo, commit);
|
|
|
|
if (!filter) {
|
|
count_bloom_filter_not_present++;
|
|
return -1;
|
|
}
|
|
|
|
for (j = 0; result && j < revs->bloom_keys_nr; j++) {
|
|
result = bloom_filter_contains(filter,
|
|
&revs->bloom_keys[j],
|
|
revs->bloom_filter_settings);
|
|
}
|
|
|
|
if (result)
|
|
count_bloom_filter_maybe++;
|
|
else
|
|
count_bloom_filter_definitely_not++;
|
|
|
|
return result;
|
|
}
|
|
|
|
static int rev_compare_tree(struct rev_info *revs,
|
|
struct commit *parent, struct commit *commit, int nth_parent)
|
|
{
|
|
struct tree *t1 = repo_get_commit_tree(the_repository, parent);
|
|
struct tree *t2 = repo_get_commit_tree(the_repository, commit);
|
|
int bloom_ret = 1;
|
|
|
|
if (!t1)
|
|
return REV_TREE_NEW;
|
|
if (!t2)
|
|
return REV_TREE_OLD;
|
|
|
|
if (revs->simplify_by_decoration) {
|
|
/*
|
|
* If we are simplifying by decoration, then the commit
|
|
* is worth showing if it has a tag pointing at it.
|
|
*/
|
|
if (get_name_decoration(&commit->object))
|
|
return REV_TREE_DIFFERENT;
|
|
/*
|
|
* A commit that is not pointed by a tag is uninteresting
|
|
* if we are not limited by path. This means that you will
|
|
* see the usual "commits that touch the paths" plus any
|
|
* tagged commit by specifying both --simplify-by-decoration
|
|
* and pathspec.
|
|
*/
|
|
if (!revs->prune_data.nr)
|
|
return REV_TREE_SAME;
|
|
}
|
|
|
|
if (revs->bloom_keys_nr && !nth_parent) {
|
|
bloom_ret = check_maybe_different_in_bloom_filter(revs, commit);
|
|
|
|
if (bloom_ret == 0)
|
|
return REV_TREE_SAME;
|
|
}
|
|
|
|
tree_difference = REV_TREE_SAME;
|
|
revs->pruning.flags.has_changes = 0;
|
|
diff_tree_oid(&t1->object.oid, &t2->object.oid, "", &revs->pruning);
|
|
|
|
if (!nth_parent)
|
|
if (bloom_ret == 1 && tree_difference == REV_TREE_SAME)
|
|
count_bloom_filter_false_positive++;
|
|
|
|
return tree_difference;
|
|
}
|
|
|
|
static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct tree *t1 = repo_get_commit_tree(the_repository, commit);
|
|
|
|
if (!t1)
|
|
return 0;
|
|
|
|
tree_difference = REV_TREE_SAME;
|
|
revs->pruning.flags.has_changes = 0;
|
|
diff_tree_oid(NULL, &t1->object.oid, "", &revs->pruning);
|
|
|
|
return tree_difference == REV_TREE_SAME;
|
|
}
|
|
|
|
struct treesame_state {
|
|
unsigned int nparents;
|
|
unsigned char treesame[FLEX_ARRAY];
|
|
};
|
|
|
|
static struct treesame_state *initialise_treesame(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
unsigned n = commit_list_count(commit->parents);
|
|
struct treesame_state *st = xcalloc(1, st_add(sizeof(*st), n));
|
|
st->nparents = n;
|
|
add_decoration(&revs->treesame, &commit->object, st);
|
|
return st;
|
|
}
|
|
|
|
/*
|
|
* Must be called immediately after removing the nth_parent from a commit's
|
|
* parent list, if we are maintaining the per-parent treesame[] decoration.
|
|
* This does not recalculate the master TREESAME flag - update_treesame()
|
|
* should be called to update it after a sequence of treesame[] modifications
|
|
* that may have affected it.
|
|
*/
|
|
static int compact_treesame(struct rev_info *revs, struct commit *commit, unsigned nth_parent)
|
|
{
|
|
struct treesame_state *st;
|
|
int old_same;
|
|
|
|
if (!commit->parents) {
|
|
/*
|
|
* Have just removed the only parent from a non-merge.
|
|
* Different handling, as we lack decoration.
|
|
*/
|
|
if (nth_parent != 0)
|
|
die("compact_treesame %u", nth_parent);
|
|
old_same = !!(commit->object.flags & TREESAME);
|
|
if (rev_same_tree_as_empty(revs, commit))
|
|
commit->object.flags |= TREESAME;
|
|
else
|
|
commit->object.flags &= ~TREESAME;
|
|
return old_same;
|
|
}
|
|
|
|
st = lookup_decoration(&revs->treesame, &commit->object);
|
|
if (!st || nth_parent >= st->nparents)
|
|
die("compact_treesame %u", nth_parent);
|
|
|
|
old_same = st->treesame[nth_parent];
|
|
memmove(st->treesame + nth_parent,
|
|
st->treesame + nth_parent + 1,
|
|
st->nparents - nth_parent - 1);
|
|
|
|
/*
|
|
* If we've just become a non-merge commit, update TREESAME
|
|
* immediately, and remove the no-longer-needed decoration.
|
|
* If still a merge, defer update until update_treesame().
|
|
*/
|
|
if (--st->nparents == 1) {
|
|
if (commit->parents->next)
|
|
die("compact_treesame parents mismatch");
|
|
if (st->treesame[0] && revs->dense)
|
|
commit->object.flags |= TREESAME;
|
|
else
|
|
commit->object.flags &= ~TREESAME;
|
|
free(add_decoration(&revs->treesame, &commit->object, NULL));
|
|
}
|
|
|
|
return old_same;
|
|
}
|
|
|
|
static unsigned update_treesame(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
if (commit->parents && commit->parents->next) {
|
|
unsigned n;
|
|
struct treesame_state *st;
|
|
struct commit_list *p;
|
|
unsigned relevant_parents;
|
|
unsigned relevant_change, irrelevant_change;
|
|
|
|
st = lookup_decoration(&revs->treesame, &commit->object);
|
|
if (!st)
|
|
die("update_treesame %s", oid_to_hex(&commit->object.oid));
|
|
relevant_parents = 0;
|
|
relevant_change = irrelevant_change = 0;
|
|
for (p = commit->parents, n = 0; p; n++, p = p->next) {
|
|
if (relevant_commit(p->item)) {
|
|
relevant_change |= !st->treesame[n];
|
|
relevant_parents++;
|
|
} else
|
|
irrelevant_change |= !st->treesame[n];
|
|
}
|
|
if (relevant_parents ? relevant_change : irrelevant_change)
|
|
commit->object.flags &= ~TREESAME;
|
|
else
|
|
commit->object.flags |= TREESAME;
|
|
}
|
|
|
|
return commit->object.flags & TREESAME;
|
|
}
|
|
|
|
static inline int limiting_can_increase_treesame(const struct rev_info *revs)
|
|
{
|
|
/*
|
|
* TREESAME is irrelevant unless prune && dense;
|
|
* if simplify_history is set, we can't have a mixture of TREESAME and
|
|
* !TREESAME INTERESTING parents (and we don't have treesame[]
|
|
* decoration anyway);
|
|
* if first_parent_only is set, then the TREESAME flag is locked
|
|
* against the first parent (and again we lack treesame[] decoration).
|
|
*/
|
|
return revs->prune && revs->dense &&
|
|
!revs->simplify_history &&
|
|
!revs->first_parent_only;
|
|
}
|
|
|
|
static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list **pp, *parent;
|
|
struct treesame_state *ts = NULL;
|
|
int relevant_change = 0, irrelevant_change = 0;
|
|
int relevant_parents, nth_parent;
|
|
|
|
/*
|
|
* If we don't do pruning, everything is interesting
|
|
*/
|
|
if (!revs->prune)
|
|
return;
|
|
|
|
if (!repo_get_commit_tree(the_repository, commit))
|
|
return;
|
|
|
|
if (!commit->parents) {
|
|
if (rev_same_tree_as_empty(revs, commit))
|
|
commit->object.flags |= TREESAME;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Normal non-merge commit? If we don't want to make the
|
|
* history dense, we consider it always to be a change..
|
|
*/
|
|
if (!revs->dense && !commit->parents->next)
|
|
return;
|
|
|
|
for (pp = &commit->parents, nth_parent = 0, relevant_parents = 0;
|
|
(parent = *pp) != NULL;
|
|
pp = &parent->next, nth_parent++) {
|
|
struct commit *p = parent->item;
|
|
if (relevant_commit(p))
|
|
relevant_parents++;
|
|
|
|
if (nth_parent == 1) {
|
|
/*
|
|
* This our second loop iteration - so we now know
|
|
* we're dealing with a merge.
|
|
*
|
|
* Do not compare with later parents when we care only about
|
|
* the first parent chain, in order to avoid derailing the
|
|
* traversal to follow a side branch that brought everything
|
|
* in the path we are limited to by the pathspec.
|
|
*/
|
|
if (revs->first_parent_only)
|
|
break;
|
|
/*
|
|
* If this will remain a potentially-simplifiable
|
|
* merge, remember per-parent treesame if needed.
|
|
* Initialise the array with the comparison from our
|
|
* first iteration.
|
|
*/
|
|
if (revs->treesame.name &&
|
|
!revs->simplify_history &&
|
|
!(commit->object.flags & UNINTERESTING)) {
|
|
ts = initialise_treesame(revs, commit);
|
|
if (!(irrelevant_change || relevant_change))
|
|
ts->treesame[0] = 1;
|
|
}
|
|
}
|
|
if (repo_parse_commit(revs->repo, p) < 0)
|
|
die("cannot simplify commit %s (because of %s)",
|
|
oid_to_hex(&commit->object.oid),
|
|
oid_to_hex(&p->object.oid));
|
|
switch (rev_compare_tree(revs, p, commit, nth_parent)) {
|
|
case REV_TREE_SAME:
|
|
if (!revs->simplify_history || !relevant_commit(p)) {
|
|
/* Even if a merge with an uninteresting
|
|
* side branch brought the entire change
|
|
* we are interested in, we do not want
|
|
* to lose the other branches of this
|
|
* merge, so we just keep going.
|
|
*/
|
|
if (ts)
|
|
ts->treesame[nth_parent] = 1;
|
|
continue;
|
|
}
|
|
parent->next = NULL;
|
|
commit->parents = parent;
|
|
|
|
/*
|
|
* A merge commit is a "diversion" if it is not
|
|
* TREESAME to its first parent but is TREESAME
|
|
* to a later parent. In the simplified history,
|
|
* we "divert" the history walk to the later
|
|
* parent. These commits are shown when "show_pulls"
|
|
* is enabled, so do not mark the object as
|
|
* TREESAME here.
|
|
*/
|
|
if (!revs->show_pulls || !nth_parent)
|
|
commit->object.flags |= TREESAME;
|
|
|
|
return;
|
|
|
|
case REV_TREE_NEW:
|
|
if (revs->remove_empty_trees &&
|
|
rev_same_tree_as_empty(revs, p)) {
|
|
/* We are adding all the specified
|
|
* paths from this parent, so the
|
|
* history beyond this parent is not
|
|
* interesting. Remove its parents
|
|
* (they are grandparents for us).
|
|
* IOW, we pretend this parent is a
|
|
* "root" commit.
|
|
*/
|
|
if (repo_parse_commit(revs->repo, p) < 0)
|
|
die("cannot simplify commit %s (invalid %s)",
|
|
oid_to_hex(&commit->object.oid),
|
|
oid_to_hex(&p->object.oid));
|
|
p->parents = NULL;
|
|
}
|
|
/* fallthrough */
|
|
case REV_TREE_OLD:
|
|
case REV_TREE_DIFFERENT:
|
|
if (relevant_commit(p))
|
|
relevant_change = 1;
|
|
else
|
|
irrelevant_change = 1;
|
|
|
|
if (!nth_parent)
|
|
commit->object.flags |= PULL_MERGE;
|
|
|
|
continue;
|
|
}
|
|
die("bad tree compare for commit %s", oid_to_hex(&commit->object.oid));
|
|
}
|
|
|
|
/*
|
|
* TREESAME is straightforward for single-parent commits. For merge
|
|
* commits, it is most useful to define it so that "irrelevant"
|
|
* parents cannot make us !TREESAME - if we have any relevant
|
|
* parents, then we only consider TREESAMEness with respect to them,
|
|
* allowing irrelevant merges from uninteresting branches to be
|
|
* simplified away. Only if we have only irrelevant parents do we
|
|
* base TREESAME on them. Note that this logic is replicated in
|
|
* update_treesame, which should be kept in sync.
|
|
*/
|
|
if (relevant_parents ? !relevant_change : !irrelevant_change)
|
|
commit->object.flags |= TREESAME;
|
|
}
|
|
|
|
static int process_parents(struct rev_info *revs, struct commit *commit,
|
|
struct commit_list **list, struct prio_queue *queue)
|
|
{
|
|
struct commit_list *parent = commit->parents;
|
|
unsigned pass_flags;
|
|
|
|
if (commit->object.flags & ADDED)
|
|
return 0;
|
|
commit->object.flags |= ADDED;
|
|
|
|
if (revs->include_check &&
|
|
!revs->include_check(commit, revs->include_check_data))
|
|
return 0;
|
|
|
|
/*
|
|
* If the commit is uninteresting, don't try to
|
|
* prune parents - we want the maximal uninteresting
|
|
* set.
|
|
*
|
|
* Normally we haven't parsed the parent
|
|
* yet, so we won't have a parent of a parent
|
|
* here. However, it may turn out that we've
|
|
* reached this commit some other way (where it
|
|
* wasn't uninteresting), in which case we need
|
|
* to mark its parents recursively too..
|
|
*/
|
|
if (commit->object.flags & UNINTERESTING) {
|
|
while (parent) {
|
|
struct commit *p = parent->item;
|
|
parent = parent->next;
|
|
if (p)
|
|
p->object.flags |= UNINTERESTING;
|
|
if (repo_parse_commit_gently(revs->repo, p, 1) < 0)
|
|
continue;
|
|
if (p->parents)
|
|
mark_parents_uninteresting(revs, p);
|
|
if (p->object.flags & SEEN)
|
|
continue;
|
|
p->object.flags |= (SEEN | NOT_USER_GIVEN);
|
|
if (list)
|
|
commit_list_insert_by_date(p, list);
|
|
if (queue)
|
|
prio_queue_put(queue, p);
|
|
if (revs->exclude_first_parent_only)
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Ok, the commit wasn't uninteresting. Try to
|
|
* simplify the commit history and find the parent
|
|
* that has no differences in the path set if one exists.
|
|
*/
|
|
try_to_simplify_commit(revs, commit);
|
|
|
|
if (revs->no_walk)
|
|
return 0;
|
|
|
|
pass_flags = (commit->object.flags & (SYMMETRIC_LEFT | ANCESTRY_PATH));
|
|
|
|
for (parent = commit->parents; parent; parent = parent->next) {
|
|
struct commit *p = parent->item;
|
|
int gently = revs->ignore_missing_links ||
|
|
revs->exclude_promisor_objects;
|
|
if (repo_parse_commit_gently(revs->repo, p, gently) < 0) {
|
|
if (revs->exclude_promisor_objects &&
|
|
is_promisor_object(&p->object.oid)) {
|
|
if (revs->first_parent_only)
|
|
break;
|
|
continue;
|
|
}
|
|
return -1;
|
|
}
|
|
if (revs->sources) {
|
|
char **slot = revision_sources_at(revs->sources, p);
|
|
|
|
if (!*slot)
|
|
*slot = *revision_sources_at(revs->sources, commit);
|
|
}
|
|
p->object.flags |= pass_flags;
|
|
if (!(p->object.flags & SEEN)) {
|
|
p->object.flags |= (SEEN | NOT_USER_GIVEN);
|
|
if (list)
|
|
commit_list_insert_by_date(p, list);
|
|
if (queue)
|
|
prio_queue_put(queue, p);
|
|
}
|
|
if (revs->first_parent_only)
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
|
|
{
|
|
struct commit_list *p;
|
|
int left_count = 0, right_count = 0;
|
|
int left_first;
|
|
struct patch_ids ids;
|
|
unsigned cherry_flag;
|
|
|
|
/* First count the commits on the left and on the right */
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
unsigned flags = commit->object.flags;
|
|
if (flags & BOUNDARY)
|
|
;
|
|
else if (flags & SYMMETRIC_LEFT)
|
|
left_count++;
|
|
else
|
|
right_count++;
|
|
}
|
|
|
|
if (!left_count || !right_count)
|
|
return;
|
|
|
|
left_first = left_count < right_count;
|
|
init_patch_ids(revs->repo, &ids);
|
|
ids.diffopts.pathspec = revs->diffopt.pathspec;
|
|
|
|
/* Compute patch-ids for one side */
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
unsigned flags = commit->object.flags;
|
|
|
|
if (flags & BOUNDARY)
|
|
continue;
|
|
/*
|
|
* If we have fewer left, left_first is set and we omit
|
|
* commits on the right branch in this loop. If we have
|
|
* fewer right, we skip the left ones.
|
|
*/
|
|
if (left_first != !!(flags & SYMMETRIC_LEFT))
|
|
continue;
|
|
add_commit_patch_id(commit, &ids);
|
|
}
|
|
|
|
/* either cherry_mark or cherry_pick are true */
|
|
cherry_flag = revs->cherry_mark ? PATCHSAME : SHOWN;
|
|
|
|
/* Check the other side */
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
struct patch_id *id;
|
|
unsigned flags = commit->object.flags;
|
|
|
|
if (flags & BOUNDARY)
|
|
continue;
|
|
/*
|
|
* If we have fewer left, left_first is set and we omit
|
|
* commits on the left branch in this loop.
|
|
*/
|
|
if (left_first == !!(flags & SYMMETRIC_LEFT))
|
|
continue;
|
|
|
|
/*
|
|
* Have we seen the same patch id?
|
|
*/
|
|
id = patch_id_iter_first(commit, &ids);
|
|
if (!id)
|
|
continue;
|
|
|
|
commit->object.flags |= cherry_flag;
|
|
do {
|
|
id->commit->object.flags |= cherry_flag;
|
|
} while ((id = patch_id_iter_next(id, &ids)));
|
|
}
|
|
|
|
free_patch_ids(&ids);
|
|
}
|
|
|
|
/* How many extra uninteresting commits we want to see.. */
|
|
#define SLOP 5
|
|
|
|
static int still_interesting(struct commit_list *src, timestamp_t date, int slop,
|
|
struct commit **interesting_cache)
|
|
{
|
|
/*
|
|
* No source list at all? We're definitely done..
|
|
*/
|
|
if (!src)
|
|
return 0;
|
|
|
|
/*
|
|
* Does the destination list contain entries with a date
|
|
* before the source list? Definitely _not_ done.
|
|
*/
|
|
if (date <= src->item->date)
|
|
return SLOP;
|
|
|
|
/*
|
|
* Does the source list still have interesting commits in
|
|
* it? Definitely not done..
|
|
*/
|
|
if (!everybody_uninteresting(src, interesting_cache))
|
|
return SLOP;
|
|
|
|
/* Ok, we're closing in.. */
|
|
return slop-1;
|
|
}
|
|
|
|
/*
|
|
* "rev-list --ancestry-path=C_0 [--ancestry-path=C_1 ...] A..B"
|
|
* computes commits that are ancestors of B but not ancestors of A but
|
|
* further limits the result to those that have any of C in their
|
|
* ancestry path (i.e. are either ancestors of any of C, descendants
|
|
* of any of C, or are any of C). If --ancestry-path is specified with
|
|
* no commit, we use all bottom commits for C.
|
|
*
|
|
* Before this function is called, ancestors of C will have already
|
|
* been marked with ANCESTRY_PATH previously.
|
|
*
|
|
* This takes the list of bottom commits and the result of "A..B"
|
|
* without --ancestry-path, and limits the latter further to the ones
|
|
* that have any of C in their ancestry path. Since the ancestors of C
|
|
* have already been marked (a prerequisite of this function), we just
|
|
* need to mark the descendants, then exclude any commit that does not
|
|
* have any of these marks.
|
|
*/
|
|
static void limit_to_ancestry(struct commit_list *bottoms, struct commit_list *list)
|
|
{
|
|
struct commit_list *p;
|
|
struct commit_list *rlist = NULL;
|
|
int made_progress;
|
|
|
|
/*
|
|
* Reverse the list so that it will be likely that we would
|
|
* process parents before children.
|
|
*/
|
|
for (p = list; p; p = p->next)
|
|
commit_list_insert(p->item, &rlist);
|
|
|
|
for (p = bottoms; p; p = p->next)
|
|
p->item->object.flags |= TMP_MARK;
|
|
|
|
/*
|
|
* Mark the ones that can reach bottom commits in "list",
|
|
* in a bottom-up fashion.
|
|
*/
|
|
do {
|
|
made_progress = 0;
|
|
for (p = rlist; p; p = p->next) {
|
|
struct commit *c = p->item;
|
|
struct commit_list *parents;
|
|
if (c->object.flags & (TMP_MARK | UNINTERESTING))
|
|
continue;
|
|
for (parents = c->parents;
|
|
parents;
|
|
parents = parents->next) {
|
|
if (!(parents->item->object.flags & TMP_MARK))
|
|
continue;
|
|
c->object.flags |= TMP_MARK;
|
|
made_progress = 1;
|
|
break;
|
|
}
|
|
}
|
|
} while (made_progress);
|
|
|
|
/*
|
|
* NEEDSWORK: decide if we want to remove parents that are
|
|
* not marked with TMP_MARK from commit->parents for commits
|
|
* in the resulting list. We may not want to do that, though.
|
|
*/
|
|
|
|
/*
|
|
* The ones that are not marked with either TMP_MARK or
|
|
* ANCESTRY_PATH are uninteresting
|
|
*/
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *c = p->item;
|
|
if (c->object.flags & (TMP_MARK | ANCESTRY_PATH))
|
|
continue;
|
|
c->object.flags |= UNINTERESTING;
|
|
}
|
|
|
|
/* We are done with TMP_MARK and ANCESTRY_PATH */
|
|
for (p = list; p; p = p->next)
|
|
p->item->object.flags &= ~(TMP_MARK | ANCESTRY_PATH);
|
|
for (p = bottoms; p; p = p->next)
|
|
p->item->object.flags &= ~(TMP_MARK | ANCESTRY_PATH);
|
|
free_commit_list(rlist);
|
|
}
|
|
|
|
/*
|
|
* Before walking the history, add the set of "negative" refs the
|
|
* caller has asked to exclude to the bottom list.
|
|
*
|
|
* This is used to compute "rev-list --ancestry-path A..B", as we need
|
|
* to filter the result of "A..B" further to the ones that can actually
|
|
* reach A.
|
|
*/
|
|
static void collect_bottom_commits(struct commit_list *list,
|
|
struct commit_list **bottom)
|
|
{
|
|
struct commit_list *elem;
|
|
for (elem = list; elem; elem = elem->next)
|
|
if (elem->item->object.flags & BOTTOM)
|
|
commit_list_insert(elem->item, bottom);
|
|
}
|
|
|
|
/* Assumes either left_only or right_only is set */
|
|
static void limit_left_right(struct commit_list *list, struct rev_info *revs)
|
|
{
|
|
struct commit_list *p;
|
|
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
|
|
if (revs->right_only) {
|
|
if (commit->object.flags & SYMMETRIC_LEFT)
|
|
commit->object.flags |= SHOWN;
|
|
} else /* revs->left_only is set */
|
|
if (!(commit->object.flags & SYMMETRIC_LEFT))
|
|
commit->object.flags |= SHOWN;
|
|
}
|
|
}
|
|
|
|
static int limit_list(struct rev_info *revs)
|
|
{
|
|
int slop = SLOP;
|
|
timestamp_t date = TIME_MAX;
|
|
struct commit_list *original_list = revs->commits;
|
|
struct commit_list *newlist = NULL;
|
|
struct commit_list **p = &newlist;
|
|
struct commit *interesting_cache = NULL;
|
|
|
|
if (revs->ancestry_path_implicit_bottoms) {
|
|
collect_bottom_commits(original_list,
|
|
&revs->ancestry_path_bottoms);
|
|
if (!revs->ancestry_path_bottoms)
|
|
die("--ancestry-path given but there are no bottom commits");
|
|
}
|
|
|
|
while (original_list) {
|
|
struct commit *commit = pop_commit(&original_list);
|
|
struct object *obj = &commit->object;
|
|
show_early_output_fn_t show;
|
|
|
|
if (commit == interesting_cache)
|
|
interesting_cache = NULL;
|
|
|
|
if (revs->max_age != -1 && (commit->date < revs->max_age))
|
|
obj->flags |= UNINTERESTING;
|
|
if (process_parents(revs, commit, &original_list, NULL) < 0)
|
|
return -1;
|
|
if (obj->flags & UNINTERESTING) {
|
|
mark_parents_uninteresting(revs, commit);
|
|
slop = still_interesting(original_list, date, slop, &interesting_cache);
|
|
if (slop)
|
|
continue;
|
|
break;
|
|
}
|
|
if (revs->min_age != -1 && (commit->date > revs->min_age) &&
|
|
!revs->line_level_traverse)
|
|
continue;
|
|
if (revs->max_age_as_filter != -1 &&
|
|
(commit->date < revs->max_age_as_filter) && !revs->line_level_traverse)
|
|
continue;
|
|
date = commit->date;
|
|
p = &commit_list_insert(commit, p)->next;
|
|
|
|
show = show_early_output;
|
|
if (!show)
|
|
continue;
|
|
|
|
show(revs, newlist);
|
|
show_early_output = NULL;
|
|
}
|
|
if (revs->cherry_pick || revs->cherry_mark)
|
|
cherry_pick_list(newlist, revs);
|
|
|
|
if (revs->left_only || revs->right_only)
|
|
limit_left_right(newlist, revs);
|
|
|
|
if (revs->ancestry_path)
|
|
limit_to_ancestry(revs->ancestry_path_bottoms, newlist);
|
|
|
|
/*
|
|
* Check if any commits have become TREESAME by some of their parents
|
|
* becoming UNINTERESTING.
|
|
*/
|
|
if (limiting_can_increase_treesame(revs)) {
|
|
struct commit_list *list = NULL;
|
|
for (list = newlist; list; list = list->next) {
|
|
struct commit *c = list->item;
|
|
if (c->object.flags & (UNINTERESTING | TREESAME))
|
|
continue;
|
|
update_treesame(revs, c);
|
|
}
|
|
}
|
|
|
|
free_commit_list(original_list);
|
|
revs->commits = newlist;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Add an entry to refs->cmdline with the specified information.
|
|
* *name is copied.
|
|
*/
|
|
static void add_rev_cmdline(struct rev_info *revs,
|
|
struct object *item,
|
|
const char *name,
|
|
int whence,
|
|
unsigned flags)
|
|
{
|
|
struct rev_cmdline_info *info = &revs->cmdline;
|
|
unsigned int nr = info->nr;
|
|
|
|
ALLOC_GROW(info->rev, nr + 1, info->alloc);
|
|
info->rev[nr].item = item;
|
|
info->rev[nr].name = xstrdup(name);
|
|
info->rev[nr].whence = whence;
|
|
info->rev[nr].flags = flags;
|
|
info->nr++;
|
|
}
|
|
|
|
static void add_rev_cmdline_list(struct rev_info *revs,
|
|
struct commit_list *commit_list,
|
|
int whence,
|
|
unsigned flags)
|
|
{
|
|
while (commit_list) {
|
|
struct object *object = &commit_list->item->object;
|
|
add_rev_cmdline(revs, object, oid_to_hex(&object->oid),
|
|
whence, flags);
|
|
commit_list = commit_list->next;
|
|
}
|
|
}
|
|
|
|
int ref_excluded(const struct ref_exclusions *exclusions, const char *path)
|
|
{
|
|
const char *stripped_path = strip_namespace(path);
|
|
struct string_list_item *item;
|
|
|
|
for_each_string_list_item(item, &exclusions->excluded_refs) {
|
|
if (!wildmatch(item->string, path, 0))
|
|
return 1;
|
|
}
|
|
|
|
if (ref_is_hidden(stripped_path, path, &exclusions->hidden_refs))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void init_ref_exclusions(struct ref_exclusions *exclusions)
|
|
{
|
|
struct ref_exclusions blank = REF_EXCLUSIONS_INIT;
|
|
memcpy(exclusions, &blank, sizeof(*exclusions));
|
|
}
|
|
|
|
void clear_ref_exclusions(struct ref_exclusions *exclusions)
|
|
{
|
|
string_list_clear(&exclusions->excluded_refs, 0);
|
|
string_list_clear(&exclusions->hidden_refs, 0);
|
|
exclusions->hidden_refs_configured = 0;
|
|
}
|
|
|
|
void add_ref_exclusion(struct ref_exclusions *exclusions, const char *exclude)
|
|
{
|
|
string_list_append(&exclusions->excluded_refs, exclude);
|
|
}
|
|
|
|
struct exclude_hidden_refs_cb {
|
|
struct ref_exclusions *exclusions;
|
|
const char *section;
|
|
};
|
|
|
|
static int hide_refs_config(const char *var, const char *value, void *cb_data)
|
|
{
|
|
struct exclude_hidden_refs_cb *cb = cb_data;
|
|
cb->exclusions->hidden_refs_configured = 1;
|
|
return parse_hide_refs_config(var, value, cb->section,
|
|
&cb->exclusions->hidden_refs);
|
|
}
|
|
|
|
void exclude_hidden_refs(struct ref_exclusions *exclusions, const char *section)
|
|
{
|
|
struct exclude_hidden_refs_cb cb;
|
|
|
|
if (strcmp(section, "fetch") && strcmp(section, "receive") &&
|
|
strcmp(section, "uploadpack"))
|
|
die(_("unsupported section for hidden refs: %s"), section);
|
|
|
|
if (exclusions->hidden_refs_configured)
|
|
die(_("--exclude-hidden= passed more than once"));
|
|
|
|
cb.exclusions = exclusions;
|
|
cb.section = section;
|
|
|
|
git_config(hide_refs_config, &cb);
|
|
}
|
|
|
|
struct all_refs_cb {
|
|
int all_flags;
|
|
int warned_bad_reflog;
|
|
struct rev_info *all_revs;
|
|
const char *name_for_errormsg;
|
|
struct worktree *wt;
|
|
};
|
|
|
|
static int handle_one_ref(const char *path, const struct object_id *oid,
|
|
int flag UNUSED,
|
|
void *cb_data)
|
|
{
|
|
struct all_refs_cb *cb = cb_data;
|
|
struct object *object;
|
|
|
|
if (ref_excluded(&cb->all_revs->ref_excludes, path))
|
|
return 0;
|
|
|
|
object = get_reference(cb->all_revs, path, oid, cb->all_flags);
|
|
add_rev_cmdline(cb->all_revs, object, path, REV_CMD_REF, cb->all_flags);
|
|
add_pending_object(cb->all_revs, object, path);
|
|
return 0;
|
|
}
|
|
|
|
static void init_all_refs_cb(struct all_refs_cb *cb, struct rev_info *revs,
|
|
unsigned flags)
|
|
{
|
|
cb->all_revs = revs;
|
|
cb->all_flags = flags;
|
|
revs->rev_input_given = 1;
|
|
cb->wt = NULL;
|
|
}
|
|
|
|
static void handle_refs(struct ref_store *refs,
|
|
struct rev_info *revs, unsigned flags,
|
|
int (*for_each)(struct ref_store *, each_ref_fn, void *))
|
|
{
|
|
struct all_refs_cb cb;
|
|
|
|
if (!refs) {
|
|
/* this could happen with uninitialized submodules */
|
|
return;
|
|
}
|
|
|
|
init_all_refs_cb(&cb, revs, flags);
|
|
for_each(refs, handle_one_ref, &cb);
|
|
}
|
|
|
|
static void handle_one_reflog_commit(struct object_id *oid, void *cb_data)
|
|
{
|
|
struct all_refs_cb *cb = cb_data;
|
|
if (!is_null_oid(oid)) {
|
|
struct object *o = parse_object(cb->all_revs->repo, oid);
|
|
if (o) {
|
|
o->flags |= cb->all_flags;
|
|
/* ??? CMDLINEFLAGS ??? */
|
|
add_pending_object(cb->all_revs, o, "");
|
|
}
|
|
else if (!cb->warned_bad_reflog) {
|
|
warning("reflog of '%s' references pruned commits",
|
|
cb->name_for_errormsg);
|
|
cb->warned_bad_reflog = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int handle_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
|
|
const char *email UNUSED,
|
|
timestamp_t timestamp UNUSED,
|
|
int tz UNUSED,
|
|
const char *message UNUSED,
|
|
void *cb_data)
|
|
{
|
|
handle_one_reflog_commit(ooid, cb_data);
|
|
handle_one_reflog_commit(noid, cb_data);
|
|
return 0;
|
|
}
|
|
|
|
static int handle_one_reflog(const char *refname_in_wt,
|
|
const struct object_id *oid UNUSED,
|
|
int flag UNUSED, void *cb_data)
|
|
{
|
|
struct all_refs_cb *cb = cb_data;
|
|
struct strbuf refname = STRBUF_INIT;
|
|
|
|
cb->warned_bad_reflog = 0;
|
|
strbuf_worktree_ref(cb->wt, &refname, refname_in_wt);
|
|
cb->name_for_errormsg = refname.buf;
|
|
refs_for_each_reflog_ent(get_main_ref_store(the_repository),
|
|
refname.buf,
|
|
handle_one_reflog_ent, cb_data);
|
|
strbuf_release(&refname);
|
|
return 0;
|
|
}
|
|
|
|
static void add_other_reflogs_to_pending(struct all_refs_cb *cb)
|
|
{
|
|
struct worktree **worktrees, **p;
|
|
|
|
worktrees = get_worktrees();
|
|
for (p = worktrees; *p; p++) {
|
|
struct worktree *wt = *p;
|
|
|
|
if (wt->is_current)
|
|
continue;
|
|
|
|
cb->wt = wt;
|
|
refs_for_each_reflog(get_worktree_ref_store(wt),
|
|
handle_one_reflog,
|
|
cb);
|
|
}
|
|
free_worktrees(worktrees);
|
|
}
|
|
|
|
void add_reflogs_to_pending(struct rev_info *revs, unsigned flags)
|
|
{
|
|
struct all_refs_cb cb;
|
|
|
|
cb.all_revs = revs;
|
|
cb.all_flags = flags;
|
|
cb.wt = NULL;
|
|
for_each_reflog(handle_one_reflog, &cb);
|
|
|
|
if (!revs->single_worktree)
|
|
add_other_reflogs_to_pending(&cb);
|
|
}
|
|
|
|
static void add_cache_tree(struct cache_tree *it, struct rev_info *revs,
|
|
struct strbuf *path, unsigned int flags)
|
|
{
|
|
size_t baselen = path->len;
|
|
int i;
|
|
|
|
if (it->entry_count >= 0) {
|
|
struct tree *tree = lookup_tree(revs->repo, &it->oid);
|
|
tree->object.flags |= flags;
|
|
add_pending_object_with_path(revs, &tree->object, "",
|
|
040000, path->buf);
|
|
}
|
|
|
|
for (i = 0; i < it->subtree_nr; i++) {
|
|
struct cache_tree_sub *sub = it->down[i];
|
|
strbuf_addf(path, "%s%s", baselen ? "/" : "", sub->name);
|
|
add_cache_tree(sub->cache_tree, revs, path, flags);
|
|
strbuf_setlen(path, baselen);
|
|
}
|
|
|
|
}
|
|
|
|
static void add_resolve_undo_to_pending(struct index_state *istate, struct rev_info *revs)
|
|
{
|
|
struct string_list_item *item;
|
|
struct string_list *resolve_undo = istate->resolve_undo;
|
|
|
|
if (!resolve_undo)
|
|
return;
|
|
|
|
for_each_string_list_item(item, resolve_undo) {
|
|
const char *path = item->string;
|
|
struct resolve_undo_info *ru = item->util;
|
|
int i;
|
|
|
|
if (!ru)
|
|
continue;
|
|
for (i = 0; i < 3; i++) {
|
|
struct blob *blob;
|
|
|
|
if (!ru->mode[i] || !S_ISREG(ru->mode[i]))
|
|
continue;
|
|
|
|
blob = lookup_blob(revs->repo, &ru->oid[i]);
|
|
if (!blob) {
|
|
warning(_("resolve-undo records `%s` which is missing"),
|
|
oid_to_hex(&ru->oid[i]));
|
|
continue;
|
|
}
|
|
add_pending_object_with_path(revs, &blob->object, "",
|
|
ru->mode[i], path);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void do_add_index_objects_to_pending(struct rev_info *revs,
|
|
struct index_state *istate,
|
|
unsigned int flags)
|
|
{
|
|
int i;
|
|
|
|
/* TODO: audit for interaction with sparse-index. */
|
|
ensure_full_index(istate);
|
|
for (i = 0; i < istate->cache_nr; i++) {
|
|
struct cache_entry *ce = istate->cache[i];
|
|
struct blob *blob;
|
|
|
|
if (S_ISGITLINK(ce->ce_mode))
|
|
continue;
|
|
|
|
blob = lookup_blob(revs->repo, &ce->oid);
|
|
if (!blob)
|
|
die("unable to add index blob to traversal");
|
|
blob->object.flags |= flags;
|
|
add_pending_object_with_path(revs, &blob->object, "",
|
|
ce->ce_mode, ce->name);
|
|
}
|
|
|
|
if (istate->cache_tree) {
|
|
struct strbuf path = STRBUF_INIT;
|
|
add_cache_tree(istate->cache_tree, revs, &path, flags);
|
|
strbuf_release(&path);
|
|
}
|
|
|
|
add_resolve_undo_to_pending(istate, revs);
|
|
}
|
|
|
|
void add_index_objects_to_pending(struct rev_info *revs, unsigned int flags)
|
|
{
|
|
struct worktree **worktrees, **p;
|
|
|
|
repo_read_index(revs->repo);
|
|
do_add_index_objects_to_pending(revs, revs->repo->index, flags);
|
|
|
|
if (revs->single_worktree)
|
|
return;
|
|
|
|
worktrees = get_worktrees();
|
|
for (p = worktrees; *p; p++) {
|
|
struct worktree *wt = *p;
|
|
struct index_state istate = INDEX_STATE_INIT(revs->repo);
|
|
|
|
if (wt->is_current)
|
|
continue; /* current index already taken care of */
|
|
|
|
if (read_index_from(&istate,
|
|
worktree_git_path(wt, "index"),
|
|
get_worktree_git_dir(wt)) > 0)
|
|
do_add_index_objects_to_pending(revs, &istate, flags);
|
|
discard_index(&istate);
|
|
}
|
|
free_worktrees(worktrees);
|
|
}
|
|
|
|
struct add_alternate_refs_data {
|
|
struct rev_info *revs;
|
|
unsigned int flags;
|
|
};
|
|
|
|
static void add_one_alternate_ref(const struct object_id *oid,
|
|
void *vdata)
|
|
{
|
|
const char *name = ".alternate";
|
|
struct add_alternate_refs_data *data = vdata;
|
|
struct object *obj;
|
|
|
|
obj = get_reference(data->revs, name, oid, data->flags);
|
|
add_rev_cmdline(data->revs, obj, name, REV_CMD_REV, data->flags);
|
|
add_pending_object(data->revs, obj, name);
|
|
}
|
|
|
|
static void add_alternate_refs_to_pending(struct rev_info *revs,
|
|
unsigned int flags)
|
|
{
|
|
struct add_alternate_refs_data data;
|
|
data.revs = revs;
|
|
data.flags = flags;
|
|
for_each_alternate_ref(add_one_alternate_ref, &data);
|
|
}
|
|
|
|
static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,
|
|
int exclude_parent)
|
|
{
|
|
struct object_id oid;
|
|
struct object *it;
|
|
struct commit *commit;
|
|
struct commit_list *parents;
|
|
int parent_number;
|
|
const char *arg = arg_;
|
|
|
|
if (*arg == '^') {
|
|
flags ^= UNINTERESTING | BOTTOM;
|
|
arg++;
|
|
}
|
|
if (repo_get_oid_committish(the_repository, arg, &oid))
|
|
return 0;
|
|
while (1) {
|
|
it = get_reference(revs, arg, &oid, 0);
|
|
if (!it && revs->ignore_missing)
|
|
return 0;
|
|
if (it->type != OBJ_TAG)
|
|
break;
|
|
if (!((struct tag*)it)->tagged)
|
|
return 0;
|
|
oidcpy(&oid, &((struct tag*)it)->tagged->oid);
|
|
}
|
|
if (it->type != OBJ_COMMIT)
|
|
return 0;
|
|
commit = (struct commit *)it;
|
|
if (exclude_parent &&
|
|
exclude_parent > commit_list_count(commit->parents))
|
|
return 0;
|
|
for (parents = commit->parents, parent_number = 1;
|
|
parents;
|
|
parents = parents->next, parent_number++) {
|
|
if (exclude_parent && parent_number != exclude_parent)
|
|
continue;
|
|
|
|
it = &parents->item->object;
|
|
it->flags |= flags;
|
|
add_rev_cmdline(revs, it, arg_, REV_CMD_PARENTS_ONLY, flags);
|
|
add_pending_object(revs, it, arg);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void repo_init_revisions(struct repository *r,
|
|
struct rev_info *revs,
|
|
const char *prefix)
|
|
{
|
|
struct rev_info blank = REV_INFO_INIT;
|
|
memcpy(revs, &blank, sizeof(*revs));
|
|
|
|
revs->repo = r;
|
|
revs->pruning.repo = r;
|
|
revs->pruning.add_remove = file_add_remove;
|
|
revs->pruning.change = file_change;
|
|
revs->pruning.change_fn_data = revs;
|
|
revs->prefix = prefix;
|
|
|
|
grep_init(&revs->grep_filter, revs->repo);
|
|
revs->grep_filter.status_only = 1;
|
|
|
|
repo_diff_setup(revs->repo, &revs->diffopt);
|
|
if (prefix && !revs->diffopt.prefix) {
|
|
revs->diffopt.prefix = prefix;
|
|
revs->diffopt.prefix_length = strlen(prefix);
|
|
}
|
|
|
|
init_display_notes(&revs->notes_opt);
|
|
list_objects_filter_init(&revs->filter);
|
|
init_ref_exclusions(&revs->ref_excludes);
|
|
}
|
|
|
|
static void add_pending_commit_list(struct rev_info *revs,
|
|
struct commit_list *commit_list,
|
|
unsigned int flags)
|
|
{
|
|
while (commit_list) {
|
|
struct object *object = &commit_list->item->object;
|
|
object->flags |= flags;
|
|
add_pending_object(revs, object, oid_to_hex(&object->oid));
|
|
commit_list = commit_list->next;
|
|
}
|
|
}
|
|
|
|
static void prepare_show_merge(struct rev_info *revs)
|
|
{
|
|
struct commit_list *bases;
|
|
struct commit *head, *other;
|
|
struct object_id oid;
|
|
const char **prune = NULL;
|
|
int i, prune_num = 1; /* counting terminating NULL */
|
|
struct index_state *istate = revs->repo->index;
|
|
|
|
if (repo_get_oid(the_repository, "HEAD", &oid))
|
|
die("--merge without HEAD?");
|
|
head = lookup_commit_or_die(&oid, "HEAD");
|
|
if (repo_get_oid(the_repository, "MERGE_HEAD", &oid))
|
|
die("--merge without MERGE_HEAD?");
|
|
other = lookup_commit_or_die(&oid, "MERGE_HEAD");
|
|
add_pending_object(revs, &head->object, "HEAD");
|
|
add_pending_object(revs, &other->object, "MERGE_HEAD");
|
|
bases = repo_get_merge_bases(the_repository, head, other);
|
|
add_rev_cmdline_list(revs, bases, REV_CMD_MERGE_BASE, UNINTERESTING | BOTTOM);
|
|
add_pending_commit_list(revs, bases, UNINTERESTING | BOTTOM);
|
|
free_commit_list(bases);
|
|
head->object.flags |= SYMMETRIC_LEFT;
|
|
|
|
if (!istate->cache_nr)
|
|
repo_read_index(revs->repo);
|
|
for (i = 0; i < istate->cache_nr; i++) {
|
|
const struct cache_entry *ce = istate->cache[i];
|
|
if (!ce_stage(ce))
|
|
continue;
|
|
if (ce_path_match(istate, ce, &revs->prune_data, NULL)) {
|
|
prune_num++;
|
|
REALLOC_ARRAY(prune, prune_num);
|
|
prune[prune_num-2] = ce->name;
|
|
prune[prune_num-1] = NULL;
|
|
}
|
|
while ((i+1 < istate->cache_nr) &&
|
|
ce_same_name(ce, istate->cache[i+1]))
|
|
i++;
|
|
}
|
|
clear_pathspec(&revs->prune_data);
|
|
parse_pathspec(&revs->prune_data, PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
|
|
PATHSPEC_PREFER_FULL | PATHSPEC_LITERAL_PATH, "", prune);
|
|
revs->limited = 1;
|
|
}
|
|
|
|
static int dotdot_missing(const char *arg, char *dotdot,
|
|
struct rev_info *revs, int symmetric)
|
|
{
|
|
if (revs->ignore_missing)
|
|
return 0;
|
|
/* de-munge so we report the full argument */
|
|
*dotdot = '.';
|
|
die(symmetric
|
|
? "Invalid symmetric difference expression %s"
|
|
: "Invalid revision range %s", arg);
|
|
}
|
|
|
|
static int handle_dotdot_1(const char *arg, char *dotdot,
|
|
struct rev_info *revs, int flags,
|
|
int cant_be_filename,
|
|
struct object_context *a_oc,
|
|
struct object_context *b_oc)
|
|
{
|
|
const char *a_name, *b_name;
|
|
struct object_id a_oid, b_oid;
|
|
struct object *a_obj, *b_obj;
|
|
unsigned int a_flags, b_flags;
|
|
int symmetric = 0;
|
|
unsigned int flags_exclude = flags ^ (UNINTERESTING | BOTTOM);
|
|
unsigned int oc_flags = GET_OID_COMMITTISH | GET_OID_RECORD_PATH;
|
|
|
|
a_name = arg;
|
|
if (!*a_name)
|
|
a_name = "HEAD";
|
|
|
|
b_name = dotdot + 2;
|
|
if (*b_name == '.') {
|
|
symmetric = 1;
|
|
b_name++;
|
|
}
|
|
if (!*b_name)
|
|
b_name = "HEAD";
|
|
|
|
if (get_oid_with_context(revs->repo, a_name, oc_flags, &a_oid, a_oc) ||
|
|
get_oid_with_context(revs->repo, b_name, oc_flags, &b_oid, b_oc))
|
|
return -1;
|
|
|
|
if (!cant_be_filename) {
|
|
*dotdot = '.';
|
|
verify_non_filename(revs->prefix, arg);
|
|
*dotdot = '\0';
|
|
}
|
|
|
|
a_obj = parse_object(revs->repo, &a_oid);
|
|
b_obj = parse_object(revs->repo, &b_oid);
|
|
if (!a_obj || !b_obj)
|
|
return dotdot_missing(arg, dotdot, revs, symmetric);
|
|
|
|
if (!symmetric) {
|
|
/* just A..B */
|
|
b_flags = flags;
|
|
a_flags = flags_exclude;
|
|
} else {
|
|
/* A...B -- find merge bases between the two */
|
|
struct commit *a, *b;
|
|
struct commit_list *exclude;
|
|
|
|
a = lookup_commit_reference(revs->repo, &a_obj->oid);
|
|
b = lookup_commit_reference(revs->repo, &b_obj->oid);
|
|
if (!a || !b)
|
|
return dotdot_missing(arg, dotdot, revs, symmetric);
|
|
|
|
exclude = repo_get_merge_bases(the_repository, a, b);
|
|
add_rev_cmdline_list(revs, exclude, REV_CMD_MERGE_BASE,
|
|
flags_exclude);
|
|
add_pending_commit_list(revs, exclude, flags_exclude);
|
|
free_commit_list(exclude);
|
|
|
|
b_flags = flags;
|
|
a_flags = flags | SYMMETRIC_LEFT;
|
|
}
|
|
|
|
a_obj->flags |= a_flags;
|
|
b_obj->flags |= b_flags;
|
|
add_rev_cmdline(revs, a_obj, a_name, REV_CMD_LEFT, a_flags);
|
|
add_rev_cmdline(revs, b_obj, b_name, REV_CMD_RIGHT, b_flags);
|
|
add_pending_object_with_path(revs, a_obj, a_name, a_oc->mode, a_oc->path);
|
|
add_pending_object_with_path(revs, b_obj, b_name, b_oc->mode, b_oc->path);
|
|
return 0;
|
|
}
|
|
|
|
static int handle_dotdot(const char *arg,
|
|
struct rev_info *revs, int flags,
|
|
int cant_be_filename)
|
|
{
|
|
struct object_context a_oc, b_oc;
|
|
char *dotdot = strstr(arg, "..");
|
|
int ret;
|
|
|
|
if (!dotdot)
|
|
return -1;
|
|
|
|
memset(&a_oc, 0, sizeof(a_oc));
|
|
memset(&b_oc, 0, sizeof(b_oc));
|
|
|
|
*dotdot = '\0';
|
|
ret = handle_dotdot_1(arg, dotdot, revs, flags, cant_be_filename,
|
|
&a_oc, &b_oc);
|
|
*dotdot = '.';
|
|
|
|
free(a_oc.path);
|
|
free(b_oc.path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int handle_revision_arg_1(const char *arg_, struct rev_info *revs, int flags, unsigned revarg_opt)
|
|
{
|
|
struct object_context oc;
|
|
char *mark;
|
|
struct object *object;
|
|
struct object_id oid;
|
|
int local_flags;
|
|
const char *arg = arg_;
|
|
int cant_be_filename = revarg_opt & REVARG_CANNOT_BE_FILENAME;
|
|
unsigned get_sha1_flags = GET_OID_RECORD_PATH;
|
|
|
|
flags = flags & UNINTERESTING ? flags | BOTTOM : flags & ~BOTTOM;
|
|
|
|
if (!cant_be_filename && !strcmp(arg, "..")) {
|
|
/*
|
|
* Just ".."? That is not a range but the
|
|
* pathspec for the parent directory.
|
|
*/
|
|
return -1;
|
|
}
|
|
|
|
if (!handle_dotdot(arg, revs, flags, revarg_opt))
|
|
return 0;
|
|
|
|
mark = strstr(arg, "^@");
|
|
if (mark && !mark[2]) {
|
|
*mark = 0;
|
|
if (add_parents_only(revs, arg, flags, 0))
|
|
return 0;
|
|
*mark = '^';
|
|
}
|
|
mark = strstr(arg, "^!");
|
|
if (mark && !mark[2]) {
|
|
*mark = 0;
|
|
if (!add_parents_only(revs, arg, flags ^ (UNINTERESTING | BOTTOM), 0))
|
|
*mark = '^';
|
|
}
|
|
mark = strstr(arg, "^-");
|
|
if (mark) {
|
|
int exclude_parent = 1;
|
|
|
|
if (mark[2]) {
|
|
if (strtol_i(mark + 2, 10, &exclude_parent) ||
|
|
exclude_parent < 1)
|
|
return -1;
|
|
}
|
|
|
|
*mark = 0;
|
|
if (!add_parents_only(revs, arg, flags ^ (UNINTERESTING | BOTTOM), exclude_parent))
|
|
*mark = '^';
|
|
}
|
|
|
|
local_flags = 0;
|
|
if (*arg == '^') {
|
|
local_flags = UNINTERESTING | BOTTOM;
|
|
arg++;
|
|
}
|
|
|
|
if (revarg_opt & REVARG_COMMITTISH)
|
|
get_sha1_flags |= GET_OID_COMMITTISH;
|
|
|
|
if (get_oid_with_context(revs->repo, arg, get_sha1_flags, &oid, &oc))
|
|
return revs->ignore_missing ? 0 : -1;
|
|
if (!cant_be_filename)
|
|
verify_non_filename(revs->prefix, arg);
|
|
object = get_reference(revs, arg, &oid, flags ^ local_flags);
|
|
if (!object)
|
|
return revs->ignore_missing ? 0 : -1;
|
|
add_rev_cmdline(revs, object, arg_, REV_CMD_REV, flags ^ local_flags);
|
|
add_pending_object_with_path(revs, object, arg, oc.mode, oc.path);
|
|
free(oc.path);
|
|
return 0;
|
|
}
|
|
|
|
int handle_revision_arg(const char *arg, struct rev_info *revs, int flags, unsigned revarg_opt)
|
|
{
|
|
int ret = handle_revision_arg_1(arg, revs, flags, revarg_opt);
|
|
if (!ret)
|
|
revs->rev_input_given = 1;
|
|
return ret;
|
|
}
|
|
|
|
static void read_pathspec_from_stdin(struct strbuf *sb,
|
|
struct strvec *prune)
|
|
{
|
|
while (strbuf_getline(sb, stdin) != EOF)
|
|
strvec_push(prune, sb->buf);
|
|
}
|
|
|
|
static void read_revisions_from_stdin(struct rev_info *revs,
|
|
struct strvec *prune)
|
|
{
|
|
struct strbuf sb;
|
|
int seen_dashdash = 0;
|
|
int save_warning;
|
|
|
|
save_warning = warn_on_object_refname_ambiguity;
|
|
warn_on_object_refname_ambiguity = 0;
|
|
|
|
strbuf_init(&sb, 1000);
|
|
while (strbuf_getline(&sb, stdin) != EOF) {
|
|
int len = sb.len;
|
|
if (!len)
|
|
break;
|
|
if (sb.buf[0] == '-') {
|
|
if (len == 2 && sb.buf[1] == '-') {
|
|
seen_dashdash = 1;
|
|
break;
|
|
}
|
|
die("options not supported in --stdin mode");
|
|
}
|
|
if (handle_revision_arg(sb.buf, revs, 0,
|
|
REVARG_CANNOT_BE_FILENAME))
|
|
die("bad revision '%s'", sb.buf);
|
|
}
|
|
if (seen_dashdash)
|
|
read_pathspec_from_stdin(&sb, prune);
|
|
|
|
strbuf_release(&sb);
|
|
warn_on_object_refname_ambiguity = save_warning;
|
|
}
|
|
|
|
static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what)
|
|
{
|
|
append_grep_pattern(&revs->grep_filter, ptn, "command line", 0, what);
|
|
}
|
|
|
|
static void add_header_grep(struct rev_info *revs, enum grep_header_field field, const char *pattern)
|
|
{
|
|
append_header_grep_pattern(&revs->grep_filter, field, pattern);
|
|
}
|
|
|
|
static void add_message_grep(struct rev_info *revs, const char *pattern)
|
|
{
|
|
add_grep(revs, pattern, GREP_PATTERN_BODY);
|
|
}
|
|
|
|
static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
|
|
int *unkc, const char **unkv,
|
|
const struct setup_revision_opt* opt)
|
|
{
|
|
const char *arg = argv[0];
|
|
const char *optarg = NULL;
|
|
int argcount;
|
|
const unsigned hexsz = the_hash_algo->hexsz;
|
|
|
|
/* pseudo revision arguments */
|
|
if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") ||
|
|
!strcmp(arg, "--tags") || !strcmp(arg, "--remotes") ||
|
|
!strcmp(arg, "--reflog") || !strcmp(arg, "--not") ||
|
|
!strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk") ||
|
|
!strcmp(arg, "--bisect") || starts_with(arg, "--glob=") ||
|
|
!strcmp(arg, "--indexed-objects") ||
|
|
!strcmp(arg, "--alternate-refs") ||
|
|
starts_with(arg, "--exclude=") || starts_with(arg, "--exclude-hidden=") ||
|
|
starts_with(arg, "--branches=") || starts_with(arg, "--tags=") ||
|
|
starts_with(arg, "--remotes=") || starts_with(arg, "--no-walk="))
|
|
{
|
|
unkv[(*unkc)++] = arg;
|
|
return 1;
|
|
}
|
|
|
|
if ((argcount = parse_long_opt("max-count", argv, &optarg))) {
|
|
revs->max_count = atoi(optarg);
|
|
revs->no_walk = 0;
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("skip", argv, &optarg))) {
|
|
revs->skip_count = atoi(optarg);
|
|
return argcount;
|
|
} else if ((*arg == '-') && isdigit(arg[1])) {
|
|
/* accept -<digit>, like traditional "head" */
|
|
if (strtol_i(arg + 1, 10, &revs->max_count) < 0 ||
|
|
revs->max_count < 0)
|
|
die("'%s': not a non-negative integer", arg + 1);
|
|
revs->no_walk = 0;
|
|
} else if (!strcmp(arg, "-n")) {
|
|
if (argc <= 1)
|
|
return error("-n requires an argument");
|
|
revs->max_count = atoi(argv[1]);
|
|
revs->no_walk = 0;
|
|
return 2;
|
|
} else if (skip_prefix(arg, "-n", &optarg)) {
|
|
revs->max_count = atoi(optarg);
|
|
revs->no_walk = 0;
|
|
} else if ((argcount = parse_long_opt("max-age", argv, &optarg))) {
|
|
revs->max_age = atoi(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("since", argv, &optarg))) {
|
|
revs->max_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("since-as-filter", argv, &optarg))) {
|
|
revs->max_age_as_filter = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("after", argv, &optarg))) {
|
|
revs->max_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("min-age", argv, &optarg))) {
|
|
revs->min_age = atoi(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("before", argv, &optarg))) {
|
|
revs->min_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("until", argv, &optarg))) {
|
|
revs->min_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--first-parent")) {
|
|
revs->first_parent_only = 1;
|
|
} else if (!strcmp(arg, "--exclude-first-parent-only")) {
|
|
revs->exclude_first_parent_only = 1;
|
|
} else if (!strcmp(arg, "--ancestry-path")) {
|
|
revs->ancestry_path = 1;
|
|
revs->simplify_history = 0;
|
|
revs->limited = 1;
|
|
revs->ancestry_path_implicit_bottoms = 1;
|
|
} else if (skip_prefix(arg, "--ancestry-path=", &optarg)) {
|
|
struct commit *c;
|
|
struct object_id oid;
|
|
const char *msg = _("could not get commit for ancestry-path argument %s");
|
|
|
|
revs->ancestry_path = 1;
|
|
revs->simplify_history = 0;
|
|
revs->limited = 1;
|
|
|
|
if (repo_get_oid_committish(revs->repo, optarg, &oid))
|
|
return error(msg, optarg);
|
|
get_reference(revs, optarg, &oid, ANCESTRY_PATH);
|
|
c = lookup_commit_reference(revs->repo, &oid);
|
|
if (!c)
|
|
return error(msg, optarg);
|
|
commit_list_insert(c, &revs->ancestry_path_bottoms);
|
|
} else if (!strcmp(arg, "-g") || !strcmp(arg, "--walk-reflogs")) {
|
|
init_reflog_walk(&revs->reflog_info);
|
|
} else if (!strcmp(arg, "--default")) {
|
|
if (argc <= 1)
|
|
return error("bad --default argument");
|
|
revs->def = argv[1];
|
|
return 2;
|
|
} else if (!strcmp(arg, "--merge")) {
|
|
revs->show_merge = 1;
|
|
} else if (!strcmp(arg, "--topo-order")) {
|
|
revs->sort_order = REV_SORT_IN_GRAPH_ORDER;
|
|
revs->topo_order = 1;
|
|
} else if (!strcmp(arg, "--simplify-merges")) {
|
|
revs->simplify_merges = 1;
|
|
revs->topo_order = 1;
|
|
revs->rewrite_parents = 1;
|
|
revs->simplify_history = 0;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--simplify-by-decoration")) {
|
|
revs->simplify_merges = 1;
|
|
revs->topo_order = 1;
|
|
revs->rewrite_parents = 1;
|
|
revs->simplify_history = 0;
|
|
revs->simplify_by_decoration = 1;
|
|
revs->limited = 1;
|
|
revs->prune = 1;
|
|
} else if (!strcmp(arg, "--date-order")) {
|
|
revs->sort_order = REV_SORT_BY_COMMIT_DATE;
|
|
revs->topo_order = 1;
|
|
} else if (!strcmp(arg, "--author-date-order")) {
|
|
revs->sort_order = REV_SORT_BY_AUTHOR_DATE;
|
|
revs->topo_order = 1;
|
|
} else if (!strcmp(arg, "--early-output")) {
|
|
revs->early_output = 100;
|
|
revs->topo_order = 1;
|
|
} else if (skip_prefix(arg, "--early-output=", &optarg)) {
|
|
if (strtoul_ui(optarg, 10, &revs->early_output) < 0)
|
|
die("'%s': not a non-negative integer", optarg);
|
|
revs->topo_order = 1;
|
|
} else if (!strcmp(arg, "--parents")) {
|
|
revs->rewrite_parents = 1;
|
|
revs->print_parents = 1;
|
|
} else if (!strcmp(arg, "--dense")) {
|
|
revs->dense = 1;
|
|
} else if (!strcmp(arg, "--sparse")) {
|
|
revs->dense = 0;
|
|
} else if (!strcmp(arg, "--in-commit-order")) {
|
|
revs->tree_blobs_in_commit_order = 1;
|
|
} else if (!strcmp(arg, "--remove-empty")) {
|
|
revs->remove_empty_trees = 1;
|
|
} else if (!strcmp(arg, "--merges")) {
|
|
revs->min_parents = 2;
|
|
} else if (!strcmp(arg, "--no-merges")) {
|
|
revs->max_parents = 1;
|
|
} else if (skip_prefix(arg, "--min-parents=", &optarg)) {
|
|
revs->min_parents = atoi(optarg);
|
|
} else if (!strcmp(arg, "--no-min-parents")) {
|
|
revs->min_parents = 0;
|
|
} else if (skip_prefix(arg, "--max-parents=", &optarg)) {
|
|
revs->max_parents = atoi(optarg);
|
|
} else if (!strcmp(arg, "--no-max-parents")) {
|
|
revs->max_parents = -1;
|
|
} else if (!strcmp(arg, "--boundary")) {
|
|
revs->boundary = 1;
|
|
} else if (!strcmp(arg, "--left-right")) {
|
|
revs->left_right = 1;
|
|
} else if (!strcmp(arg, "--left-only")) {
|
|
if (revs->right_only)
|
|
die("--left-only is incompatible with --right-only"
|
|
" or --cherry");
|
|
revs->left_only = 1;
|
|
} else if (!strcmp(arg, "--right-only")) {
|
|
if (revs->left_only)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--right-only", "--left-only");
|
|
revs->right_only = 1;
|
|
} else if (!strcmp(arg, "--cherry")) {
|
|
if (revs->left_only)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--cherry", "--left-only");
|
|
revs->cherry_mark = 1;
|
|
revs->right_only = 1;
|
|
revs->max_parents = 1;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--count")) {
|
|
revs->count = 1;
|
|
} else if (!strcmp(arg, "--cherry-mark")) {
|
|
if (revs->cherry_pick)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--cherry-mark", "--cherry-pick");
|
|
revs->cherry_mark = 1;
|
|
revs->limited = 1; /* needs limit_list() */
|
|
} else if (!strcmp(arg, "--cherry-pick")) {
|
|
if (revs->cherry_mark)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--cherry-pick", "--cherry-mark");
|
|
revs->cherry_pick = 1;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--objects")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
} else if (!strcmp(arg, "--objects-edge")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
revs->edge_hint = 1;
|
|
} else if (!strcmp(arg, "--objects-edge-aggressive")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
revs->edge_hint = 1;
|
|
revs->edge_hint_aggressive = 1;
|
|
} else if (!strcmp(arg, "--verify-objects")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
revs->verify_objects = 1;
|
|
disable_commit_graph(revs->repo);
|
|
} else if (!strcmp(arg, "--unpacked")) {
|
|
revs->unpacked = 1;
|
|
} else if (starts_with(arg, "--unpacked=")) {
|
|
die(_("--unpacked=<packfile> no longer supported"));
|
|
} else if (!strcmp(arg, "--no-kept-objects")) {
|
|
revs->no_kept_objects = 1;
|
|
revs->keep_pack_cache_flags |= IN_CORE_KEEP_PACKS;
|
|
revs->keep_pack_cache_flags |= ON_DISK_KEEP_PACKS;
|
|
} else if (skip_prefix(arg, "--no-kept-objects=", &optarg)) {
|
|
revs->no_kept_objects = 1;
|
|
if (!strcmp(optarg, "in-core"))
|
|
revs->keep_pack_cache_flags |= IN_CORE_KEEP_PACKS;
|
|
if (!strcmp(optarg, "on-disk"))
|
|
revs->keep_pack_cache_flags |= ON_DISK_KEEP_PACKS;
|
|
} else if (!strcmp(arg, "-r")) {
|
|
revs->diff = 1;
|
|
revs->diffopt.flags.recursive = 1;
|
|
} else if (!strcmp(arg, "-t")) {
|
|
revs->diff = 1;
|
|
revs->diffopt.flags.recursive = 1;
|
|
revs->diffopt.flags.tree_in_recursive = 1;
|
|
} else if ((argcount = diff_merges_parse_opts(revs, argv))) {
|
|
return argcount;
|
|
} else if (!strcmp(arg, "-v")) {
|
|
revs->verbose_header = 1;
|
|
} else if (!strcmp(arg, "--pretty")) {
|
|
revs->verbose_header = 1;
|
|
revs->pretty_given = 1;
|
|
get_commit_format(NULL, revs);
|
|
} else if (skip_prefix(arg, "--pretty=", &optarg) ||
|
|
skip_prefix(arg, "--format=", &optarg)) {
|
|
/*
|
|
* Detached form ("--pretty X" as opposed to "--pretty=X")
|
|
* not allowed, since the argument is optional.
|
|
*/
|
|
revs->verbose_header = 1;
|
|
revs->pretty_given = 1;
|
|
get_commit_format(optarg, revs);
|
|
} else if (!strcmp(arg, "--expand-tabs")) {
|
|
revs->expand_tabs_in_log = 8;
|
|
} else if (!strcmp(arg, "--no-expand-tabs")) {
|
|
revs->expand_tabs_in_log = 0;
|
|
} else if (skip_prefix(arg, "--expand-tabs=", &arg)) {
|
|
int val;
|
|
if (strtol_i(arg, 10, &val) < 0 || val < 0)
|
|
die("'%s': not a non-negative integer", arg);
|
|
revs->expand_tabs_in_log = val;
|
|
} else if (!strcmp(arg, "--show-notes") || !strcmp(arg, "--notes")) {
|
|
enable_default_display_notes(&revs->notes_opt, &revs->show_notes);
|
|
revs->show_notes_given = 1;
|
|
} else if (!strcmp(arg, "--show-signature")) {
|
|
revs->show_signature = 1;
|
|
} else if (!strcmp(arg, "--no-show-signature")) {
|
|
revs->show_signature = 0;
|
|
} else if (!strcmp(arg, "--show-linear-break")) {
|
|
revs->break_bar = " ..........";
|
|
revs->track_linear = 1;
|
|
revs->track_first_time = 1;
|
|
} else if (skip_prefix(arg, "--show-linear-break=", &optarg)) {
|
|
revs->break_bar = xstrdup(optarg);
|
|
revs->track_linear = 1;
|
|
revs->track_first_time = 1;
|
|
} else if (skip_prefix(arg, "--show-notes=", &optarg) ||
|
|
skip_prefix(arg, "--notes=", &optarg)) {
|
|
if (starts_with(arg, "--show-notes=") &&
|
|
revs->notes_opt.use_default_notes < 0)
|
|
revs->notes_opt.use_default_notes = 1;
|
|
enable_ref_display_notes(&revs->notes_opt, &revs->show_notes, optarg);
|
|
revs->show_notes_given = 1;
|
|
} else if (!strcmp(arg, "--no-notes")) {
|
|
disable_display_notes(&revs->notes_opt, &revs->show_notes);
|
|
revs->show_notes_given = 1;
|
|
} else if (!strcmp(arg, "--standard-notes")) {
|
|
revs->show_notes_given = 1;
|
|
revs->notes_opt.use_default_notes = 1;
|
|
} else if (!strcmp(arg, "--no-standard-notes")) {
|
|
revs->notes_opt.use_default_notes = 0;
|
|
} else if (!strcmp(arg, "--oneline")) {
|
|
revs->verbose_header = 1;
|
|
get_commit_format("oneline", revs);
|
|
revs->pretty_given = 1;
|
|
revs->abbrev_commit = 1;
|
|
} else if (!strcmp(arg, "--graph")) {
|
|
graph_clear(revs->graph);
|
|
revs->graph = graph_init(revs);
|
|
} else if (!strcmp(arg, "--no-graph")) {
|
|
graph_clear(revs->graph);
|
|
revs->graph = NULL;
|
|
} else if (!strcmp(arg, "--encode-email-headers")) {
|
|
revs->encode_email_headers = 1;
|
|
} else if (!strcmp(arg, "--no-encode-email-headers")) {
|
|
revs->encode_email_headers = 0;
|
|
} else if (!strcmp(arg, "--root")) {
|
|
revs->show_root_diff = 1;
|
|
} else if (!strcmp(arg, "--no-commit-id")) {
|
|
revs->no_commit_id = 1;
|
|
} else if (!strcmp(arg, "--always")) {
|
|
revs->always_show_header = 1;
|
|
} else if (!strcmp(arg, "--no-abbrev")) {
|
|
revs->abbrev = 0;
|
|
} else if (!strcmp(arg, "--abbrev")) {
|
|
revs->abbrev = DEFAULT_ABBREV;
|
|
} else if (skip_prefix(arg, "--abbrev=", &optarg)) {
|
|
revs->abbrev = strtoul(optarg, NULL, 10);
|
|
if (revs->abbrev < MINIMUM_ABBREV)
|
|
revs->abbrev = MINIMUM_ABBREV;
|
|
else if (revs->abbrev > hexsz)
|
|
revs->abbrev = hexsz;
|
|
} else if (!strcmp(arg, "--abbrev-commit")) {
|
|
revs->abbrev_commit = 1;
|
|
revs->abbrev_commit_given = 1;
|
|
} else if (!strcmp(arg, "--no-abbrev-commit")) {
|
|
revs->abbrev_commit = 0;
|
|
} else if (!strcmp(arg, "--full-diff")) {
|
|
revs->diff = 1;
|
|
revs->full_diff = 1;
|
|
} else if (!strcmp(arg, "--show-pulls")) {
|
|
revs->show_pulls = 1;
|
|
} else if (!strcmp(arg, "--full-history")) {
|
|
revs->simplify_history = 0;
|
|
} else if (!strcmp(arg, "--relative-date")) {
|
|
revs->date_mode.type = DATE_RELATIVE;
|
|
revs->date_mode_explicit = 1;
|
|
} else if ((argcount = parse_long_opt("date", argv, &optarg))) {
|
|
parse_date_format(optarg, &revs->date_mode);
|
|
revs->date_mode_explicit = 1;
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--log-size")) {
|
|
revs->show_log_size = 1;
|
|
}
|
|
/*
|
|
* Grepping the commit log
|
|
*/
|
|
else if ((argcount = parse_long_opt("author", argv, &optarg))) {
|
|
add_header_grep(revs, GREP_HEADER_AUTHOR, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("committer", argv, &optarg))) {
|
|
add_header_grep(revs, GREP_HEADER_COMMITTER, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("grep-reflog", argv, &optarg))) {
|
|
add_header_grep(revs, GREP_HEADER_REFLOG, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("grep", argv, &optarg))) {
|
|
add_message_grep(revs, optarg);
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--basic-regexp")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_BRE;
|
|
} else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_ERE;
|
|
} else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
|
|
revs->grep_filter.ignore_case = 1;
|
|
revs->diffopt.pickaxe_opts |= DIFF_PICKAXE_IGNORE_CASE;
|
|
} else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_FIXED;
|
|
} else if (!strcmp(arg, "--perl-regexp") || !strcmp(arg, "-P")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_PCRE;
|
|
} else if (!strcmp(arg, "--all-match")) {
|
|
revs->grep_filter.all_match = 1;
|
|
} else if (!strcmp(arg, "--invert-grep")) {
|
|
revs->grep_filter.no_body_match = 1;
|
|
} else if ((argcount = parse_long_opt("encoding", argv, &optarg))) {
|
|
if (strcmp(optarg, "none"))
|
|
git_log_output_encoding = xstrdup(optarg);
|
|
else
|
|
git_log_output_encoding = "";
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--reverse")) {
|
|
revs->reverse ^= 1;
|
|
} else if (!strcmp(arg, "--children")) {
|
|
revs->children.name = "children";
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--ignore-missing")) {
|
|
revs->ignore_missing = 1;
|
|
} else if (opt && opt->allow_exclude_promisor_objects &&
|
|
!strcmp(arg, "--exclude-promisor-objects")) {
|
|
if (fetch_if_missing)
|
|
BUG("exclude_promisor_objects can only be used when fetch_if_missing is 0");
|
|
revs->exclude_promisor_objects = 1;
|
|
} else {
|
|
int opts = diff_opt_parse(&revs->diffopt, argv, argc, revs->prefix);
|
|
if (!opts)
|
|
unkv[(*unkc)++] = arg;
|
|
return opts;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
|
|
const struct option *options,
|
|
const char * const usagestr[])
|
|
{
|
|
int n = handle_revision_opt(revs, ctx->argc, ctx->argv,
|
|
&ctx->cpidx, ctx->out, NULL);
|
|
if (n <= 0) {
|
|
error("unknown option `%s'", ctx->argv[0]);
|
|
usage_with_options(usagestr, options);
|
|
}
|
|
ctx->argv += n;
|
|
ctx->argc -= n;
|
|
}
|
|
|
|
void revision_opts_finish(struct rev_info *revs)
|
|
{
|
|
if (revs->graph && revs->track_linear)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--show-linear-break", "--graph");
|
|
|
|
if (revs->graph) {
|
|
revs->topo_order = 1;
|
|
revs->rewrite_parents = 1;
|
|
}
|
|
}
|
|
|
|
static int for_each_bisect_ref(struct ref_store *refs, each_ref_fn fn,
|
|
void *cb_data, const char *term)
|
|
{
|
|
struct strbuf bisect_refs = STRBUF_INIT;
|
|
int status;
|
|
strbuf_addf(&bisect_refs, "refs/bisect/%s", term);
|
|
status = refs_for_each_fullref_in(refs, bisect_refs.buf, fn, cb_data);
|
|
strbuf_release(&bisect_refs);
|
|
return status;
|
|
}
|
|
|
|
static int for_each_bad_bisect_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return for_each_bisect_ref(refs, fn, cb_data, term_bad);
|
|
}
|
|
|
|
static int for_each_good_bisect_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return for_each_bisect_ref(refs, fn, cb_data, term_good);
|
|
}
|
|
|
|
static int handle_revision_pseudo_opt(struct rev_info *revs,
|
|
const char **argv, int *flags)
|
|
{
|
|
const char *arg = argv[0];
|
|
const char *optarg;
|
|
struct ref_store *refs;
|
|
int argcount;
|
|
|
|
if (revs->repo != the_repository) {
|
|
/*
|
|
* We need some something like get_submodule_worktrees()
|
|
* before we can go through all worktrees of a submodule,
|
|
* .e.g with adding all HEADs from --all, which is not
|
|
* supported right now, so stick to single worktree.
|
|
*/
|
|
if (!revs->single_worktree)
|
|
BUG("--single-worktree cannot be used together with submodule");
|
|
}
|
|
refs = get_main_ref_store(revs->repo);
|
|
|
|
/*
|
|
* NOTE!
|
|
*
|
|
* Commands like "git shortlog" will not accept the options below
|
|
* unless parse_revision_opt queues them (as opposed to erroring
|
|
* out).
|
|
*
|
|
* When implementing your new pseudo-option, remember to
|
|
* register it in the list at the top of handle_revision_opt.
|
|
*/
|
|
if (!strcmp(arg, "--all")) {
|
|
handle_refs(refs, revs, *flags, refs_for_each_ref);
|
|
handle_refs(refs, revs, *flags, refs_head_ref);
|
|
if (!revs->single_worktree) {
|
|
struct all_refs_cb cb;
|
|
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
other_head_refs(handle_one_ref, &cb);
|
|
}
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--branches")) {
|
|
if (revs->ref_excludes.hidden_refs_configured)
|
|
return error(_("--exclude-hidden cannot be used together with --branches"));
|
|
handle_refs(refs, revs, *flags, refs_for_each_branch_ref);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--bisect")) {
|
|
read_bisect_terms(&term_bad, &term_good);
|
|
handle_refs(refs, revs, *flags, for_each_bad_bisect_ref);
|
|
handle_refs(refs, revs, *flags ^ (UNINTERESTING | BOTTOM),
|
|
for_each_good_bisect_ref);
|
|
revs->bisect = 1;
|
|
} else if (!strcmp(arg, "--tags")) {
|
|
if (revs->ref_excludes.hidden_refs_configured)
|
|
return error(_("--exclude-hidden cannot be used together with --tags"));
|
|
handle_refs(refs, revs, *flags, refs_for_each_tag_ref);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--remotes")) {
|
|
if (revs->ref_excludes.hidden_refs_configured)
|
|
return error(_("--exclude-hidden cannot be used together with --remotes"));
|
|
handle_refs(refs, revs, *flags, refs_for_each_remote_ref);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if ((argcount = parse_long_opt("glob", argv, &optarg))) {
|
|
struct all_refs_cb cb;
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref(handle_one_ref, optarg, &cb);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("exclude", argv, &optarg))) {
|
|
add_ref_exclusion(&revs->ref_excludes, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("exclude-hidden", argv, &optarg))) {
|
|
exclude_hidden_refs(&revs->ref_excludes, optarg);
|
|
return argcount;
|
|
} else if (skip_prefix(arg, "--branches=", &optarg)) {
|
|
struct all_refs_cb cb;
|
|
if (revs->ref_excludes.hidden_refs_configured)
|
|
return error(_("--exclude-hidden cannot be used together with --branches"));
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref_in(handle_one_ref, optarg, "refs/heads/", &cb);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if (skip_prefix(arg, "--tags=", &optarg)) {
|
|
struct all_refs_cb cb;
|
|
if (revs->ref_excludes.hidden_refs_configured)
|
|
return error(_("--exclude-hidden cannot be used together with --tags"));
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref_in(handle_one_ref, optarg, "refs/tags/", &cb);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if (skip_prefix(arg, "--remotes=", &optarg)) {
|
|
struct all_refs_cb cb;
|
|
if (revs->ref_excludes.hidden_refs_configured)
|
|
return error(_("--exclude-hidden cannot be used together with --remotes"));
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref_in(handle_one_ref, optarg, "refs/remotes/", &cb);
|
|
clear_ref_exclusions(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--reflog")) {
|
|
add_reflogs_to_pending(revs, *flags);
|
|
} else if (!strcmp(arg, "--indexed-objects")) {
|
|
add_index_objects_to_pending(revs, *flags);
|
|
} else if (!strcmp(arg, "--alternate-refs")) {
|
|
add_alternate_refs_to_pending(revs, *flags);
|
|
} else if (!strcmp(arg, "--not")) {
|
|
*flags ^= UNINTERESTING | BOTTOM;
|
|
} else if (!strcmp(arg, "--no-walk")) {
|
|
revs->no_walk = 1;
|
|
} else if (skip_prefix(arg, "--no-walk=", &optarg)) {
|
|
/*
|
|
* Detached form ("--no-walk X" as opposed to "--no-walk=X")
|
|
* not allowed, since the argument is optional.
|
|
*/
|
|
revs->no_walk = 1;
|
|
if (!strcmp(optarg, "sorted"))
|
|
revs->unsorted_input = 0;
|
|
else if (!strcmp(optarg, "unsorted"))
|
|
revs->unsorted_input = 1;
|
|
else
|
|
return error("invalid argument to --no-walk");
|
|
} else if (!strcmp(arg, "--do-walk")) {
|
|
revs->no_walk = 0;
|
|
} else if (!strcmp(arg, "--single-worktree")) {
|
|
revs->single_worktree = 1;
|
|
} else if (skip_prefix(arg, ("--filter="), &arg)) {
|
|
parse_list_objects_filter(&revs->filter, arg);
|
|
} else if (!strcmp(arg, ("--no-filter"))) {
|
|
list_objects_filter_set_no_filter(&revs->filter);
|
|
} else {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void NORETURN diagnose_missing_default(const char *def)
|
|
{
|
|
int flags;
|
|
const char *refname;
|
|
|
|
refname = resolve_ref_unsafe(def, 0, NULL, &flags);
|
|
if (!refname || !(flags & REF_ISSYMREF) || (flags & REF_ISBROKEN))
|
|
die(_("your current branch appears to be broken"));
|
|
|
|
skip_prefix(refname, "refs/heads/", &refname);
|
|
die(_("your current branch '%s' does not have any commits yet"),
|
|
refname);
|
|
}
|
|
|
|
/*
|
|
* Parse revision information, filling in the "rev_info" structure,
|
|
* and removing the used arguments from the argument list.
|
|
*
|
|
* Returns the number of arguments left that weren't recognized
|
|
* (which are also moved to the head of the argument list)
|
|
*/
|
|
int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt)
|
|
{
|
|
int i, flags, left, seen_dashdash, revarg_opt;
|
|
struct strvec prune_data = STRVEC_INIT;
|
|
int seen_end_of_options = 0;
|
|
|
|
/* First, search for "--" */
|
|
if (opt && opt->assume_dashdash) {
|
|
seen_dashdash = 1;
|
|
} else {
|
|
seen_dashdash = 0;
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (strcmp(arg, "--"))
|
|
continue;
|
|
if (opt && opt->free_removed_argv_elements)
|
|
free((char *)argv[i]);
|
|
argv[i] = NULL;
|
|
argc = i;
|
|
if (argv[i + 1])
|
|
strvec_pushv(&prune_data, argv + i + 1);
|
|
seen_dashdash = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Second, deal with arguments and options */
|
|
flags = 0;
|
|
revarg_opt = opt ? opt->revarg_opt : 0;
|
|
if (seen_dashdash)
|
|
revarg_opt |= REVARG_CANNOT_BE_FILENAME;
|
|
for (left = i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (!seen_end_of_options && *arg == '-') {
|
|
int opts;
|
|
|
|
opts = handle_revision_pseudo_opt(
|
|
revs, argv + i,
|
|
&flags);
|
|
if (opts > 0) {
|
|
i += opts - 1;
|
|
continue;
|
|
}
|
|
|
|
if (!strcmp(arg, "--stdin")) {
|
|
if (revs->disable_stdin) {
|
|
argv[left++] = arg;
|
|
continue;
|
|
}
|
|
if (revs->read_from_stdin++)
|
|
die("--stdin given twice?");
|
|
read_revisions_from_stdin(revs, &prune_data);
|
|
continue;
|
|
}
|
|
|
|
if (!strcmp(arg, "--end-of-options")) {
|
|
seen_end_of_options = 1;
|
|
continue;
|
|
}
|
|
|
|
opts = handle_revision_opt(revs, argc - i, argv + i,
|
|
&left, argv, opt);
|
|
if (opts > 0) {
|
|
i += opts - 1;
|
|
continue;
|
|
}
|
|
if (opts < 0)
|
|
exit(128);
|
|
continue;
|
|
}
|
|
|
|
|
|
if (handle_revision_arg(arg, revs, flags, revarg_opt)) {
|
|
int j;
|
|
if (seen_dashdash || *arg == '^')
|
|
die("bad revision '%s'", arg);
|
|
|
|
/* If we didn't have a "--":
|
|
* (1) all filenames must exist;
|
|
* (2) all rev-args must not be interpretable
|
|
* as a valid filename.
|
|
* but the latter we have checked in the main loop.
|
|
*/
|
|
for (j = i; j < argc; j++)
|
|
verify_filename(revs->prefix, argv[j], j == i);
|
|
|
|
strvec_pushv(&prune_data, argv + i);
|
|
break;
|
|
}
|
|
}
|
|
revision_opts_finish(revs);
|
|
|
|
if (prune_data.nr) {
|
|
/*
|
|
* If we need to introduce the magic "a lone ':' means no
|
|
* pathspec whatsoever", here is the place to do so.
|
|
*
|
|
* if (prune_data.nr == 1 && !strcmp(prune_data[0], ":")) {
|
|
* prune_data.nr = 0;
|
|
* prune_data.alloc = 0;
|
|
* free(prune_data.path);
|
|
* prune_data.path = NULL;
|
|
* } else {
|
|
* terminate prune_data.alloc with NULL and
|
|
* call init_pathspec() to set revs->prune_data here.
|
|
* }
|
|
*/
|
|
parse_pathspec(&revs->prune_data, 0, 0,
|
|
revs->prefix, prune_data.v);
|
|
}
|
|
strvec_clear(&prune_data);
|
|
|
|
if (!revs->def)
|
|
revs->def = opt ? opt->def : NULL;
|
|
if (opt && opt->tweak)
|
|
opt->tweak(revs, opt);
|
|
if (revs->show_merge)
|
|
prepare_show_merge(revs);
|
|
if (revs->def && !revs->pending.nr && !revs->rev_input_given) {
|
|
struct object_id oid;
|
|
struct object *object;
|
|
struct object_context oc;
|
|
if (get_oid_with_context(revs->repo, revs->def, 0, &oid, &oc))
|
|
diagnose_missing_default(revs->def);
|
|
object = get_reference(revs, revs->def, &oid, 0);
|
|
add_pending_object_with_mode(revs, object, revs->def, oc.mode);
|
|
}
|
|
|
|
/* Did the user ask for any diff output? Run the diff! */
|
|
if (revs->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT)
|
|
revs->diff = 1;
|
|
|
|
/* Pickaxe, diff-filter and rename following need diffs */
|
|
if ((revs->diffopt.pickaxe_opts & DIFF_PICKAXE_KINDS_MASK) ||
|
|
revs->diffopt.filter ||
|
|
revs->diffopt.flags.follow_renames)
|
|
revs->diff = 1;
|
|
|
|
if (revs->diffopt.objfind)
|
|
revs->simplify_history = 0;
|
|
|
|
if (revs->line_level_traverse) {
|
|
if (want_ancestry(revs))
|
|
revs->limited = 1;
|
|
revs->topo_order = 1;
|
|
}
|
|
|
|
if (revs->topo_order && !generation_numbers_enabled(the_repository))
|
|
revs->limited = 1;
|
|
|
|
if (revs->prune_data.nr) {
|
|
copy_pathspec(&revs->pruning.pathspec, &revs->prune_data);
|
|
/* Can't prune commits with rename following: the paths change.. */
|
|
if (!revs->diffopt.flags.follow_renames)
|
|
revs->prune = 1;
|
|
if (!revs->full_diff)
|
|
copy_pathspec(&revs->diffopt.pathspec,
|
|
&revs->prune_data);
|
|
}
|
|
|
|
diff_merges_setup_revs(revs);
|
|
|
|
revs->diffopt.abbrev = revs->abbrev;
|
|
|
|
diff_setup_done(&revs->diffopt);
|
|
|
|
if (!is_encoding_utf8(get_log_output_encoding()))
|
|
revs->grep_filter.ignore_locale = 1;
|
|
compile_grep_patterns(&revs->grep_filter);
|
|
|
|
if (revs->reverse && revs->reflog_info)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--reverse", "--walk-reflogs");
|
|
if (revs->reflog_info && revs->limited)
|
|
die("cannot combine --walk-reflogs with history-limiting options");
|
|
if (revs->rewrite_parents && revs->children.name)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--parents", "--children");
|
|
if (revs->filter.choice && !revs->blob_objects)
|
|
die(_("object filtering requires --objects"));
|
|
|
|
/*
|
|
* Limitations on the graph functionality
|
|
*/
|
|
if (revs->reverse && revs->graph)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--reverse", "--graph");
|
|
|
|
if (revs->reflog_info && revs->graph)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--walk-reflogs", "--graph");
|
|
if (revs->no_walk && revs->graph)
|
|
die(_("options '%s' and '%s' cannot be used together"), "--no-walk", "--graph");
|
|
if (!revs->reflog_info && revs->grep_filter.use_reflog_filter)
|
|
die(_("the option '%s' requires '%s'"), "--grep-reflog", "--walk-reflogs");
|
|
|
|
if (revs->line_level_traverse &&
|
|
(revs->diffopt.output_format & ~(DIFF_FORMAT_PATCH | DIFF_FORMAT_NO_OUTPUT)))
|
|
die(_("-L does not yet support diff formats besides -p and -s"));
|
|
|
|
if (revs->expand_tabs_in_log < 0)
|
|
revs->expand_tabs_in_log = revs->expand_tabs_in_log_default;
|
|
|
|
return left;
|
|
}
|
|
|
|
static void release_revisions_cmdline(struct rev_cmdline_info *cmdline)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < cmdline->nr; i++)
|
|
free((char *)cmdline->rev[i].name);
|
|
free(cmdline->rev);
|
|
}
|
|
|
|
static void release_revisions_mailmap(struct string_list *mailmap)
|
|
{
|
|
if (!mailmap)
|
|
return;
|
|
clear_mailmap(mailmap);
|
|
free(mailmap);
|
|
}
|
|
|
|
static void release_revisions_topo_walk_info(struct topo_walk_info *info);
|
|
|
|
void release_revisions(struct rev_info *revs)
|
|
{
|
|
free_commit_list(revs->commits);
|
|
free_commit_list(revs->ancestry_path_bottoms);
|
|
object_array_clear(&revs->pending);
|
|
object_array_clear(&revs->boundary_commits);
|
|
release_revisions_cmdline(&revs->cmdline);
|
|
list_objects_filter_release(&revs->filter);
|
|
clear_pathspec(&revs->prune_data);
|
|
date_mode_release(&revs->date_mode);
|
|
release_revisions_mailmap(revs->mailmap);
|
|
free_grep_patterns(&revs->grep_filter);
|
|
graph_clear(revs->graph);
|
|
/* TODO (need to handle "no_free"): diff_free(&revs->diffopt) */
|
|
diff_free(&revs->pruning);
|
|
reflog_walk_info_release(revs->reflog_info);
|
|
release_revisions_topo_walk_info(revs->topo_walk_info);
|
|
}
|
|
|
|
static void add_child(struct rev_info *revs, struct commit *parent, struct commit *child)
|
|
{
|
|
struct commit_list *l = xcalloc(1, sizeof(*l));
|
|
|
|
l->item = child;
|
|
l->next = add_decoration(&revs->children, &parent->object, l);
|
|
}
|
|
|
|
static int remove_duplicate_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct treesame_state *ts = lookup_decoration(&revs->treesame, &commit->object);
|
|
struct commit_list **pp, *p;
|
|
int surviving_parents;
|
|
|
|
/* Examine existing parents while marking ones we have seen... */
|
|
pp = &commit->parents;
|
|
surviving_parents = 0;
|
|
while ((p = *pp) != NULL) {
|
|
struct commit *parent = p->item;
|
|
if (parent->object.flags & TMP_MARK) {
|
|
*pp = p->next;
|
|
if (ts)
|
|
compact_treesame(revs, commit, surviving_parents);
|
|
continue;
|
|
}
|
|
parent->object.flags |= TMP_MARK;
|
|
surviving_parents++;
|
|
pp = &p->next;
|
|
}
|
|
/* clear the temporary mark */
|
|
for (p = commit->parents; p; p = p->next) {
|
|
p->item->object.flags &= ~TMP_MARK;
|
|
}
|
|
/* no update_treesame() - removing duplicates can't affect TREESAME */
|
|
return surviving_parents;
|
|
}
|
|
|
|
struct merge_simplify_state {
|
|
struct commit *simplified;
|
|
};
|
|
|
|
static struct merge_simplify_state *locate_simplify_state(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct merge_simplify_state *st;
|
|
|
|
st = lookup_decoration(&revs->merge_simplification, &commit->object);
|
|
if (!st) {
|
|
CALLOC_ARRAY(st, 1);
|
|
add_decoration(&revs->merge_simplification, &commit->object, st);
|
|
}
|
|
return st;
|
|
}
|
|
|
|
static int mark_redundant_parents(struct commit *commit)
|
|
{
|
|
struct commit_list *h = reduce_heads(commit->parents);
|
|
int i = 0, marked = 0;
|
|
struct commit_list *po, *pn;
|
|
|
|
/* Want these for sanity-checking only */
|
|
int orig_cnt = commit_list_count(commit->parents);
|
|
int cnt = commit_list_count(h);
|
|
|
|
/*
|
|
* Not ready to remove items yet, just mark them for now, based
|
|
* on the output of reduce_heads(). reduce_heads outputs the reduced
|
|
* set in its original order, so this isn't too hard.
|
|
*/
|
|
po = commit->parents;
|
|
pn = h;
|
|
while (po) {
|
|
if (pn && po->item == pn->item) {
|
|
pn = pn->next;
|
|
i++;
|
|
} else {
|
|
po->item->object.flags |= TMP_MARK;
|
|
marked++;
|
|
}
|
|
po=po->next;
|
|
}
|
|
|
|
if (i != cnt || cnt+marked != orig_cnt)
|
|
die("mark_redundant_parents %d %d %d %d", orig_cnt, cnt, i, marked);
|
|
|
|
free_commit_list(h);
|
|
|
|
return marked;
|
|
}
|
|
|
|
static int mark_treesame_root_parents(struct commit *commit)
|
|
{
|
|
struct commit_list *p;
|
|
int marked = 0;
|
|
|
|
for (p = commit->parents; p; p = p->next) {
|
|
struct commit *parent = p->item;
|
|
if (!parent->parents && (parent->object.flags & TREESAME)) {
|
|
parent->object.flags |= TMP_MARK;
|
|
marked++;
|
|
}
|
|
}
|
|
|
|
return marked;
|
|
}
|
|
|
|
/*
|
|
* Awkward naming - this means one parent we are TREESAME to.
|
|
* cf mark_treesame_root_parents: root parents that are TREESAME (to an
|
|
* empty tree). Better name suggestions?
|
|
*/
|
|
static int leave_one_treesame_to_parent(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct treesame_state *ts = lookup_decoration(&revs->treesame, &commit->object);
|
|
struct commit *unmarked = NULL, *marked = NULL;
|
|
struct commit_list *p;
|
|
unsigned n;
|
|
|
|
for (p = commit->parents, n = 0; p; p = p->next, n++) {
|
|
if (ts->treesame[n]) {
|
|
if (p->item->object.flags & TMP_MARK) {
|
|
if (!marked)
|
|
marked = p->item;
|
|
} else {
|
|
if (!unmarked) {
|
|
unmarked = p->item;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are TREESAME to a marked-for-deletion parent, but not to any
|
|
* unmarked parents, unmark the first TREESAME parent. This is the
|
|
* parent that the default simplify_history==1 scan would have followed,
|
|
* and it doesn't make sense to omit that path when asking for a
|
|
* simplified full history. Retaining it improves the chances of
|
|
* understanding odd missed merges that took an old version of a file.
|
|
*
|
|
* Example:
|
|
*
|
|
* I--------*X A modified the file, but mainline merge X used
|
|
* \ / "-s ours", so took the version from I. X is
|
|
* `-*A--' TREESAME to I and !TREESAME to A.
|
|
*
|
|
* Default log from X would produce "I". Without this check,
|
|
* --full-history --simplify-merges would produce "I-A-X", showing
|
|
* the merge commit X and that it changed A, but not making clear that
|
|
* it had just taken the I version. With this check, the topology above
|
|
* is retained.
|
|
*
|
|
* Note that it is possible that the simplification chooses a different
|
|
* TREESAME parent from the default, in which case this test doesn't
|
|
* activate, and we _do_ drop the default parent. Example:
|
|
*
|
|
* I------X A modified the file, but it was reverted in B,
|
|
* \ / meaning mainline merge X is TREESAME to both
|
|
* *A-*B parents.
|
|
*
|
|
* Default log would produce "I" by following the first parent;
|
|
* --full-history --simplify-merges will produce "I-A-B". But this is a
|
|
* reasonable result - it presents a logical full history leading from
|
|
* I to X, and X is not an important merge.
|
|
*/
|
|
if (!unmarked && marked) {
|
|
marked->object.flags &= ~TMP_MARK;
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int remove_marked_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list **pp, *p;
|
|
int nth_parent, removed = 0;
|
|
|
|
pp = &commit->parents;
|
|
nth_parent = 0;
|
|
while ((p = *pp) != NULL) {
|
|
struct commit *parent = p->item;
|
|
if (parent->object.flags & TMP_MARK) {
|
|
parent->object.flags &= ~TMP_MARK;
|
|
*pp = p->next;
|
|
free(p);
|
|
removed++;
|
|
compact_treesame(revs, commit, nth_parent);
|
|
continue;
|
|
}
|
|
pp = &p->next;
|
|
nth_parent++;
|
|
}
|
|
|
|
/* Removing parents can only increase TREESAMEness */
|
|
if (removed && !(commit->object.flags & TREESAME))
|
|
update_treesame(revs, commit);
|
|
|
|
return nth_parent;
|
|
}
|
|
|
|
static struct commit_list **simplify_one(struct rev_info *revs, struct commit *commit, struct commit_list **tail)
|
|
{
|
|
struct commit_list *p;
|
|
struct commit *parent;
|
|
struct merge_simplify_state *st, *pst;
|
|
int cnt;
|
|
|
|
st = locate_simplify_state(revs, commit);
|
|
|
|
/*
|
|
* Have we handled this one?
|
|
*/
|
|
if (st->simplified)
|
|
return tail;
|
|
|
|
/*
|
|
* An UNINTERESTING commit simplifies to itself, so does a
|
|
* root commit. We do not rewrite parents of such commit
|
|
* anyway.
|
|
*/
|
|
if ((commit->object.flags & UNINTERESTING) || !commit->parents) {
|
|
st->simplified = commit;
|
|
return tail;
|
|
}
|
|
|
|
/*
|
|
* Do we know what commit all of our parents that matter
|
|
* should be rewritten to? Otherwise we are not ready to
|
|
* rewrite this one yet.
|
|
*/
|
|
for (cnt = 0, p = commit->parents; p; p = p->next) {
|
|
pst = locate_simplify_state(revs, p->item);
|
|
if (!pst->simplified) {
|
|
tail = &commit_list_insert(p->item, tail)->next;
|
|
cnt++;
|
|
}
|
|
if (revs->first_parent_only)
|
|
break;
|
|
}
|
|
if (cnt) {
|
|
tail = &commit_list_insert(commit, tail)->next;
|
|
return tail;
|
|
}
|
|
|
|
/*
|
|
* Rewrite our list of parents. Note that this cannot
|
|
* affect our TREESAME flags in any way - a commit is
|
|
* always TREESAME to its simplification.
|
|
*/
|
|
for (p = commit->parents; p; p = p->next) {
|
|
pst = locate_simplify_state(revs, p->item);
|
|
p->item = pst->simplified;
|
|
if (revs->first_parent_only)
|
|
break;
|
|
}
|
|
|
|
if (revs->first_parent_only)
|
|
cnt = 1;
|
|
else
|
|
cnt = remove_duplicate_parents(revs, commit);
|
|
|
|
/*
|
|
* It is possible that we are a merge and one side branch
|
|
* does not have any commit that touches the given paths;
|
|
* in such a case, the immediate parent from that branch
|
|
* will be rewritten to be the merge base.
|
|
*
|
|
* o----X X: the commit we are looking at;
|
|
* / / o: a commit that touches the paths;
|
|
* ---o----'
|
|
*
|
|
* Further, a merge of an independent branch that doesn't
|
|
* touch the path will reduce to a treesame root parent:
|
|
*
|
|
* ----o----X X: the commit we are looking at;
|
|
* / o: a commit that touches the paths;
|
|
* r r: a root commit not touching the paths
|
|
*
|
|
* Detect and simplify both cases.
|
|
*/
|
|
if (1 < cnt) {
|
|
int marked = mark_redundant_parents(commit);
|
|
marked += mark_treesame_root_parents(commit);
|
|
if (marked)
|
|
marked -= leave_one_treesame_to_parent(revs, commit);
|
|
if (marked)
|
|
cnt = remove_marked_parents(revs, commit);
|
|
}
|
|
|
|
/*
|
|
* A commit simplifies to itself if it is a root, if it is
|
|
* UNINTERESTING, if it touches the given paths, or if it is a
|
|
* merge and its parents don't simplify to one relevant commit
|
|
* (the first two cases are already handled at the beginning of
|
|
* this function).
|
|
*
|
|
* Otherwise, it simplifies to what its sole relevant parent
|
|
* simplifies to.
|
|
*/
|
|
if (!cnt ||
|
|
(commit->object.flags & UNINTERESTING) ||
|
|
!(commit->object.flags & TREESAME) ||
|
|
(parent = one_relevant_parent(revs, commit->parents)) == NULL ||
|
|
(revs->show_pulls && (commit->object.flags & PULL_MERGE)))
|
|
st->simplified = commit;
|
|
else {
|
|
pst = locate_simplify_state(revs, parent);
|
|
st->simplified = pst->simplified;
|
|
}
|
|
return tail;
|
|
}
|
|
|
|
static void simplify_merges(struct rev_info *revs)
|
|
{
|
|
struct commit_list *list, *next;
|
|
struct commit_list *yet_to_do, **tail;
|
|
struct commit *commit;
|
|
|
|
if (!revs->prune)
|
|
return;
|
|
|
|
/* feed the list reversed */
|
|
yet_to_do = NULL;
|
|
for (list = revs->commits; list; list = next) {
|
|
commit = list->item;
|
|
next = list->next;
|
|
/*
|
|
* Do not free(list) here yet; the original list
|
|
* is used later in this function.
|
|
*/
|
|
commit_list_insert(commit, &yet_to_do);
|
|
}
|
|
while (yet_to_do) {
|
|
list = yet_to_do;
|
|
yet_to_do = NULL;
|
|
tail = &yet_to_do;
|
|
while (list) {
|
|
commit = pop_commit(&list);
|
|
tail = simplify_one(revs, commit, tail);
|
|
}
|
|
}
|
|
|
|
/* clean up the result, removing the simplified ones */
|
|
list = revs->commits;
|
|
revs->commits = NULL;
|
|
tail = &revs->commits;
|
|
while (list) {
|
|
struct merge_simplify_state *st;
|
|
|
|
commit = pop_commit(&list);
|
|
st = locate_simplify_state(revs, commit);
|
|
if (st->simplified == commit)
|
|
tail = &commit_list_insert(commit, tail)->next;
|
|
}
|
|
}
|
|
|
|
static void set_children(struct rev_info *revs)
|
|
{
|
|
struct commit_list *l;
|
|
for (l = revs->commits; l; l = l->next) {
|
|
struct commit *commit = l->item;
|
|
struct commit_list *p;
|
|
|
|
for (p = commit->parents; p; p = p->next)
|
|
add_child(revs, p->item, commit);
|
|
}
|
|
}
|
|
|
|
void reset_revision_walk(void)
|
|
{
|
|
clear_object_flags(SEEN | ADDED | SHOWN | TOPO_WALK_EXPLORED | TOPO_WALK_INDEGREE);
|
|
}
|
|
|
|
static int mark_uninteresting(const struct object_id *oid,
|
|
struct packed_git *pack UNUSED,
|
|
uint32_t pos UNUSED,
|
|
void *cb)
|
|
{
|
|
struct rev_info *revs = cb;
|
|
struct object *o = lookup_unknown_object(revs->repo, oid);
|
|
o->flags |= UNINTERESTING | SEEN;
|
|
return 0;
|
|
}
|
|
|
|
define_commit_slab(indegree_slab, int);
|
|
define_commit_slab(author_date_slab, timestamp_t);
|
|
|
|
struct topo_walk_info {
|
|
timestamp_t min_generation;
|
|
struct prio_queue explore_queue;
|
|
struct prio_queue indegree_queue;
|
|
struct prio_queue topo_queue;
|
|
struct indegree_slab indegree;
|
|
struct author_date_slab author_date;
|
|
};
|
|
|
|
static int topo_walk_atexit_registered;
|
|
static unsigned int count_explore_walked;
|
|
static unsigned int count_indegree_walked;
|
|
static unsigned int count_topo_walked;
|
|
|
|
static void trace2_topo_walk_statistics_atexit(void)
|
|
{
|
|
struct json_writer jw = JSON_WRITER_INIT;
|
|
|
|
jw_object_begin(&jw, 0);
|
|
jw_object_intmax(&jw, "count_explore_walked", count_explore_walked);
|
|
jw_object_intmax(&jw, "count_indegree_walked", count_indegree_walked);
|
|
jw_object_intmax(&jw, "count_topo_walked", count_topo_walked);
|
|
jw_end(&jw);
|
|
|
|
trace2_data_json("topo_walk", the_repository, "statistics", &jw);
|
|
|
|
jw_release(&jw);
|
|
}
|
|
|
|
static inline void test_flag_and_insert(struct prio_queue *q, struct commit *c, int flag)
|
|
{
|
|
if (c->object.flags & flag)
|
|
return;
|
|
|
|
c->object.flags |= flag;
|
|
prio_queue_put(q, c);
|
|
}
|
|
|
|
static void explore_walk_step(struct rev_info *revs)
|
|
{
|
|
struct topo_walk_info *info = revs->topo_walk_info;
|
|
struct commit_list *p;
|
|
struct commit *c = prio_queue_get(&info->explore_queue);
|
|
|
|
if (!c)
|
|
return;
|
|
|
|
if (repo_parse_commit_gently(revs->repo, c, 1) < 0)
|
|
return;
|
|
|
|
count_explore_walked++;
|
|
|
|
if (revs->sort_order == REV_SORT_BY_AUTHOR_DATE)
|
|
record_author_date(&info->author_date, c);
|
|
|
|
if (revs->max_age != -1 && (c->date < revs->max_age))
|
|
c->object.flags |= UNINTERESTING;
|
|
|
|
if (process_parents(revs, c, NULL, NULL) < 0)
|
|
return;
|
|
|
|
if (c->object.flags & UNINTERESTING)
|
|
mark_parents_uninteresting(revs, c);
|
|
|
|
for (p = c->parents; p; p = p->next)
|
|
test_flag_and_insert(&info->explore_queue, p->item, TOPO_WALK_EXPLORED);
|
|
}
|
|
|
|
static void explore_to_depth(struct rev_info *revs,
|
|
timestamp_t gen_cutoff)
|
|
{
|
|
struct topo_walk_info *info = revs->topo_walk_info;
|
|
struct commit *c;
|
|
while ((c = prio_queue_peek(&info->explore_queue)) &&
|
|
commit_graph_generation(c) >= gen_cutoff)
|
|
explore_walk_step(revs);
|
|
}
|
|
|
|
static void indegree_walk_step(struct rev_info *revs)
|
|
{
|
|
struct commit_list *p;
|
|
struct topo_walk_info *info = revs->topo_walk_info;
|
|
struct commit *c = prio_queue_get(&info->indegree_queue);
|
|
|
|
if (!c)
|
|
return;
|
|
|
|
if (repo_parse_commit_gently(revs->repo, c, 1) < 0)
|
|
return;
|
|
|
|
count_indegree_walked++;
|
|
|
|
explore_to_depth(revs, commit_graph_generation(c));
|
|
|
|
for (p = c->parents; p; p = p->next) {
|
|
struct commit *parent = p->item;
|
|
int *pi = indegree_slab_at(&info->indegree, parent);
|
|
|
|
if (repo_parse_commit_gently(revs->repo, parent, 1) < 0)
|
|
return;
|
|
|
|
if (*pi)
|
|
(*pi)++;
|
|
else
|
|
*pi = 2;
|
|
|
|
test_flag_and_insert(&info->indegree_queue, parent, TOPO_WALK_INDEGREE);
|
|
|
|
if (revs->first_parent_only)
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void compute_indegrees_to_depth(struct rev_info *revs,
|
|
timestamp_t gen_cutoff)
|
|
{
|
|
struct topo_walk_info *info = revs->topo_walk_info;
|
|
struct commit *c;
|
|
while ((c = prio_queue_peek(&info->indegree_queue)) &&
|
|
commit_graph_generation(c) >= gen_cutoff)
|
|
indegree_walk_step(revs);
|
|
}
|
|
|
|
static void release_revisions_topo_walk_info(struct topo_walk_info *info)
|
|
{
|
|
if (!info)
|
|
return;
|
|
clear_prio_queue(&info->explore_queue);
|
|
clear_prio_queue(&info->indegree_queue);
|
|
clear_prio_queue(&info->topo_queue);
|
|
clear_indegree_slab(&info->indegree);
|
|
clear_author_date_slab(&info->author_date);
|
|
free(info);
|
|
}
|
|
|
|
static void reset_topo_walk(struct rev_info *revs)
|
|
{
|
|
release_revisions_topo_walk_info(revs->topo_walk_info);
|
|
revs->topo_walk_info = NULL;
|
|
}
|
|
|
|
static void init_topo_walk(struct rev_info *revs)
|
|
{
|
|
struct topo_walk_info *info;
|
|
struct commit_list *list;
|
|
if (revs->topo_walk_info)
|
|
reset_topo_walk(revs);
|
|
|
|
revs->topo_walk_info = xmalloc(sizeof(struct topo_walk_info));
|
|
info = revs->topo_walk_info;
|
|
memset(info, 0, sizeof(struct topo_walk_info));
|
|
|
|
init_indegree_slab(&info->indegree);
|
|
memset(&info->explore_queue, 0, sizeof(info->explore_queue));
|
|
memset(&info->indegree_queue, 0, sizeof(info->indegree_queue));
|
|
memset(&info->topo_queue, 0, sizeof(info->topo_queue));
|
|
|
|
switch (revs->sort_order) {
|
|
default: /* REV_SORT_IN_GRAPH_ORDER */
|
|
info->topo_queue.compare = NULL;
|
|
break;
|
|
case REV_SORT_BY_COMMIT_DATE:
|
|
info->topo_queue.compare = compare_commits_by_commit_date;
|
|
break;
|
|
case REV_SORT_BY_AUTHOR_DATE:
|
|
init_author_date_slab(&info->author_date);
|
|
info->topo_queue.compare = compare_commits_by_author_date;
|
|
info->topo_queue.cb_data = &info->author_date;
|
|
break;
|
|
}
|
|
|
|
info->explore_queue.compare = compare_commits_by_gen_then_commit_date;
|
|
info->indegree_queue.compare = compare_commits_by_gen_then_commit_date;
|
|
|
|
info->min_generation = GENERATION_NUMBER_INFINITY;
|
|
for (list = revs->commits; list; list = list->next) {
|
|
struct commit *c = list->item;
|
|
timestamp_t generation;
|
|
|
|
if (repo_parse_commit_gently(revs->repo, c, 1))
|
|
continue;
|
|
|
|
test_flag_and_insert(&info->explore_queue, c, TOPO_WALK_EXPLORED);
|
|
test_flag_and_insert(&info->indegree_queue, c, TOPO_WALK_INDEGREE);
|
|
|
|
generation = commit_graph_generation(c);
|
|
if (generation < info->min_generation)
|
|
info->min_generation = generation;
|
|
|
|
*(indegree_slab_at(&info->indegree, c)) = 1;
|
|
|
|
if (revs->sort_order == REV_SORT_BY_AUTHOR_DATE)
|
|
record_author_date(&info->author_date, c);
|
|
}
|
|
compute_indegrees_to_depth(revs, info->min_generation);
|
|
|
|
for (list = revs->commits; list; list = list->next) {
|
|
struct commit *c = list->item;
|
|
|
|
if (*(indegree_slab_at(&info->indegree, c)) == 1)
|
|
prio_queue_put(&info->topo_queue, c);
|
|
}
|
|
|
|
/*
|
|
* This is unfortunate; the initial tips need to be shown
|
|
* in the order given from the revision traversal machinery.
|
|
*/
|
|
if (revs->sort_order == REV_SORT_IN_GRAPH_ORDER)
|
|
prio_queue_reverse(&info->topo_queue);
|
|
|
|
if (trace2_is_enabled() && !topo_walk_atexit_registered) {
|
|
atexit(trace2_topo_walk_statistics_atexit);
|
|
topo_walk_atexit_registered = 1;
|
|
}
|
|
}
|
|
|
|
static struct commit *next_topo_commit(struct rev_info *revs)
|
|
{
|
|
struct commit *c;
|
|
struct topo_walk_info *info = revs->topo_walk_info;
|
|
|
|
/* pop next off of topo_queue */
|
|
c = prio_queue_get(&info->topo_queue);
|
|
|
|
if (c)
|
|
*(indegree_slab_at(&info->indegree, c)) = 0;
|
|
|
|
return c;
|
|
}
|
|
|
|
static void expand_topo_walk(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list *p;
|
|
struct topo_walk_info *info = revs->topo_walk_info;
|
|
if (process_parents(revs, commit, NULL, NULL) < 0) {
|
|
if (!revs->ignore_missing_links)
|
|
die("Failed to traverse parents of commit %s",
|
|
oid_to_hex(&commit->object.oid));
|
|
}
|
|
|
|
count_topo_walked++;
|
|
|
|
for (p = commit->parents; p; p = p->next) {
|
|
struct commit *parent = p->item;
|
|
int *pi;
|
|
timestamp_t generation;
|
|
|
|
if (parent->object.flags & UNINTERESTING)
|
|
continue;
|
|
|
|
if (repo_parse_commit_gently(revs->repo, parent, 1) < 0)
|
|
continue;
|
|
|
|
generation = commit_graph_generation(parent);
|
|
if (generation < info->min_generation) {
|
|
info->min_generation = generation;
|
|
compute_indegrees_to_depth(revs, info->min_generation);
|
|
}
|
|
|
|
pi = indegree_slab_at(&info->indegree, parent);
|
|
|
|
(*pi)--;
|
|
if (*pi == 1)
|
|
prio_queue_put(&info->topo_queue, parent);
|
|
|
|
if (revs->first_parent_only)
|
|
return;
|
|
}
|
|
}
|
|
|
|
int prepare_revision_walk(struct rev_info *revs)
|
|
{
|
|
int i;
|
|
struct object_array old_pending;
|
|
struct commit_list **next = &revs->commits;
|
|
|
|
memcpy(&old_pending, &revs->pending, sizeof(old_pending));
|
|
revs->pending.nr = 0;
|
|
revs->pending.alloc = 0;
|
|
revs->pending.objects = NULL;
|
|
for (i = 0; i < old_pending.nr; i++) {
|
|
struct object_array_entry *e = old_pending.objects + i;
|
|
struct commit *commit = handle_commit(revs, e);
|
|
if (commit) {
|
|
if (!(commit->object.flags & SEEN)) {
|
|
commit->object.flags |= SEEN;
|
|
next = commit_list_append(commit, next);
|
|
}
|
|
}
|
|
}
|
|
object_array_clear(&old_pending);
|
|
|
|
/* Signal whether we need per-parent treesame decoration */
|
|
if (revs->simplify_merges ||
|
|
(revs->limited && limiting_can_increase_treesame(revs)))
|
|
revs->treesame.name = "treesame";
|
|
|
|
if (revs->exclude_promisor_objects) {
|
|
for_each_packed_object(mark_uninteresting, revs,
|
|
FOR_EACH_OBJECT_PROMISOR_ONLY);
|
|
}
|
|
|
|
if (!revs->reflog_info)
|
|
prepare_to_use_bloom_filter(revs);
|
|
if (!revs->unsorted_input)
|
|
commit_list_sort_by_date(&revs->commits);
|
|
if (revs->no_walk)
|
|
return 0;
|
|
if (revs->limited) {
|
|
if (limit_list(revs) < 0)
|
|
return -1;
|
|
if (revs->topo_order)
|
|
sort_in_topological_order(&revs->commits, revs->sort_order);
|
|
} else if (revs->topo_order)
|
|
init_topo_walk(revs);
|
|
if (revs->line_level_traverse && want_ancestry(revs))
|
|
/*
|
|
* At the moment we can only do line-level log with parent
|
|
* rewriting by performing this expensive pre-filtering step.
|
|
* If parent rewriting is not requested, then we rather
|
|
* perform the line-level log filtering during the regular
|
|
* history traversal.
|
|
*/
|
|
line_log_filter(revs);
|
|
if (revs->simplify_merges)
|
|
simplify_merges(revs);
|
|
if (revs->children.name)
|
|
set_children(revs);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static enum rewrite_result rewrite_one_1(struct rev_info *revs,
|
|
struct commit **pp,
|
|
struct prio_queue *queue)
|
|
{
|
|
for (;;) {
|
|
struct commit *p = *pp;
|
|
if (!revs->limited)
|
|
if (process_parents(revs, p, NULL, queue) < 0)
|
|
return rewrite_one_error;
|
|
if (p->object.flags & UNINTERESTING)
|
|
return rewrite_one_ok;
|
|
if (!(p->object.flags & TREESAME))
|
|
return rewrite_one_ok;
|
|
if (!p->parents)
|
|
return rewrite_one_noparents;
|
|
if (!(p = one_relevant_parent(revs, p->parents)))
|
|
return rewrite_one_ok;
|
|
*pp = p;
|
|
}
|
|
}
|
|
|
|
static void merge_queue_into_list(struct prio_queue *q, struct commit_list **list)
|
|
{
|
|
while (q->nr) {
|
|
struct commit *item = prio_queue_peek(q);
|
|
struct commit_list *p = *list;
|
|
|
|
if (p && p->item->date >= item->date)
|
|
list = &p->next;
|
|
else {
|
|
p = commit_list_insert(item, list);
|
|
list = &p->next; /* skip newly added item */
|
|
prio_queue_get(q); /* pop item */
|
|
}
|
|
}
|
|
}
|
|
|
|
static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
|
|
{
|
|
struct prio_queue queue = { compare_commits_by_commit_date };
|
|
enum rewrite_result ret = rewrite_one_1(revs, pp, &queue);
|
|
merge_queue_into_list(&queue, &revs->commits);
|
|
clear_prio_queue(&queue);
|
|
return ret;
|
|
}
|
|
|
|
int rewrite_parents(struct rev_info *revs, struct commit *commit,
|
|
rewrite_parent_fn_t rewrite_parent)
|
|
{
|
|
struct commit_list **pp = &commit->parents;
|
|
while (*pp) {
|
|
struct commit_list *parent = *pp;
|
|
switch (rewrite_parent(revs, &parent->item)) {
|
|
case rewrite_one_ok:
|
|
break;
|
|
case rewrite_one_noparents:
|
|
*pp = parent->next;
|
|
continue;
|
|
case rewrite_one_error:
|
|
return -1;
|
|
}
|
|
pp = &parent->next;
|
|
}
|
|
remove_duplicate_parents(revs, commit);
|
|
return 0;
|
|
}
|
|
|
|
static int commit_match(struct commit *commit, struct rev_info *opt)
|
|
{
|
|
int retval;
|
|
const char *encoding;
|
|
const char *message;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
|
|
if (!opt->grep_filter.pattern_list && !opt->grep_filter.header_list)
|
|
return 1;
|
|
|
|
/* Prepend "fake" headers as needed */
|
|
if (opt->grep_filter.use_reflog_filter) {
|
|
strbuf_addstr(&buf, "reflog ");
|
|
get_reflog_message(&buf, opt->reflog_info);
|
|
strbuf_addch(&buf, '\n');
|
|
}
|
|
|
|
/*
|
|
* We grep in the user's output encoding, under the assumption that it
|
|
* is the encoding they are most likely to write their grep pattern
|
|
* for. In addition, it means we will match the "notes" encoding below,
|
|
* so we will not end up with a buffer that has two different encodings
|
|
* in it.
|
|
*/
|
|
encoding = get_log_output_encoding();
|
|
message = repo_logmsg_reencode(the_repository, commit, NULL, encoding);
|
|
|
|
/* Copy the commit to temporary if we are using "fake" headers */
|
|
if (buf.len)
|
|
strbuf_addstr(&buf, message);
|
|
|
|
if (opt->grep_filter.header_list && opt->mailmap) {
|
|
const char *commit_headers[] = { "author ", "committer ", NULL };
|
|
|
|
if (!buf.len)
|
|
strbuf_addstr(&buf, message);
|
|
|
|
apply_mailmap_to_header(&buf, commit_headers, opt->mailmap);
|
|
}
|
|
|
|
/* Append "fake" message parts as needed */
|
|
if (opt->show_notes) {
|
|
if (!buf.len)
|
|
strbuf_addstr(&buf, message);
|
|
format_display_notes(&commit->object.oid, &buf, encoding, 1);
|
|
}
|
|
|
|
/*
|
|
* Find either in the original commit message, or in the temporary.
|
|
* Note that we cast away the constness of "message" here. It is
|
|
* const because it may come from the cached commit buffer. That's OK,
|
|
* because we know that it is modifiable heap memory, and that while
|
|
* grep_buffer may modify it for speed, it will restore any
|
|
* changes before returning.
|
|
*/
|
|
if (buf.len)
|
|
retval = grep_buffer(&opt->grep_filter, buf.buf, buf.len);
|
|
else
|
|
retval = grep_buffer(&opt->grep_filter,
|
|
(char *)message, strlen(message));
|
|
strbuf_release(&buf);
|
|
repo_unuse_commit_buffer(the_repository, commit, message);
|
|
return retval;
|
|
}
|
|
|
|
static inline int want_ancestry(const struct rev_info *revs)
|
|
{
|
|
return (revs->rewrite_parents || revs->children.name);
|
|
}
|
|
|
|
/*
|
|
* Return a timestamp to be used for --since/--until comparisons for this
|
|
* commit, based on the revision options.
|
|
*/
|
|
static timestamp_t comparison_date(const struct rev_info *revs,
|
|
struct commit *commit)
|
|
{
|
|
return revs->reflog_info ?
|
|
get_reflog_timestamp(revs->reflog_info) :
|
|
commit->date;
|
|
}
|
|
|
|
enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
if (commit->object.flags & SHOWN)
|
|
return commit_ignore;
|
|
if (revs->unpacked && has_object_pack(&commit->object.oid))
|
|
return commit_ignore;
|
|
if (revs->no_kept_objects) {
|
|
if (has_object_kept_pack(&commit->object.oid,
|
|
revs->keep_pack_cache_flags))
|
|
return commit_ignore;
|
|
}
|
|
if (commit->object.flags & UNINTERESTING)
|
|
return commit_ignore;
|
|
if (revs->line_level_traverse && !want_ancestry(revs)) {
|
|
/*
|
|
* In case of line-level log with parent rewriting
|
|
* prepare_revision_walk() already took care of all line-level
|
|
* log filtering, and there is nothing left to do here.
|
|
*
|
|
* If parent rewriting was not requested, then this is the
|
|
* place to perform the line-level log filtering. Notably,
|
|
* this check, though expensive, must come before the other,
|
|
* cheaper filtering conditions, because the tracked line
|
|
* ranges must be adjusted even when the commit will end up
|
|
* being ignored based on other conditions.
|
|
*/
|
|
if (!line_log_process_ranges_arbitrary_commit(revs, commit))
|
|
return commit_ignore;
|
|
}
|
|
if (revs->min_age != -1 &&
|
|
comparison_date(revs, commit) > revs->min_age)
|
|
return commit_ignore;
|
|
if (revs->max_age_as_filter != -1 &&
|
|
comparison_date(revs, commit) < revs->max_age_as_filter)
|
|
return commit_ignore;
|
|
if (revs->min_parents || (revs->max_parents >= 0)) {
|
|
int n = commit_list_count(commit->parents);
|
|
if ((n < revs->min_parents) ||
|
|
((revs->max_parents >= 0) && (n > revs->max_parents)))
|
|
return commit_ignore;
|
|
}
|
|
if (!commit_match(commit, revs))
|
|
return commit_ignore;
|
|
if (revs->prune && revs->dense) {
|
|
/* Commit without changes? */
|
|
if (commit->object.flags & TREESAME) {
|
|
int n;
|
|
struct commit_list *p;
|
|
/* drop merges unless we want parenthood */
|
|
if (!want_ancestry(revs))
|
|
return commit_ignore;
|
|
|
|
if (revs->show_pulls && (commit->object.flags & PULL_MERGE))
|
|
return commit_show;
|
|
|
|
/*
|
|
* If we want ancestry, then need to keep any merges
|
|
* between relevant commits to tie together topology.
|
|
* For consistency with TREESAME and simplification
|
|
* use "relevant" here rather than just INTERESTING,
|
|
* to treat bottom commit(s) as part of the topology.
|
|
*/
|
|
for (n = 0, p = commit->parents; p; p = p->next)
|
|
if (relevant_commit(p->item))
|
|
if (++n >= 2)
|
|
return commit_show;
|
|
return commit_ignore;
|
|
}
|
|
}
|
|
return commit_show;
|
|
}
|
|
|
|
define_commit_slab(saved_parents, struct commit_list *);
|
|
|
|
#define EMPTY_PARENT_LIST ((struct commit_list *)-1)
|
|
|
|
/*
|
|
* You may only call save_parents() once per commit (this is checked
|
|
* for non-root commits).
|
|
*/
|
|
static void save_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list **pp;
|
|
|
|
if (!revs->saved_parents_slab) {
|
|
revs->saved_parents_slab = xmalloc(sizeof(struct saved_parents));
|
|
init_saved_parents(revs->saved_parents_slab);
|
|
}
|
|
|
|
pp = saved_parents_at(revs->saved_parents_slab, commit);
|
|
|
|
/*
|
|
* When walking with reflogs, we may visit the same commit
|
|
* several times: once for each appearance in the reflog.
|
|
*
|
|
* In this case, save_parents() will be called multiple times.
|
|
* We want to keep only the first set of parents. We need to
|
|
* store a sentinel value for an empty (i.e., NULL) parent
|
|
* list to distinguish it from a not-yet-saved list, however.
|
|
*/
|
|
if (*pp)
|
|
return;
|
|
if (commit->parents)
|
|
*pp = copy_commit_list(commit->parents);
|
|
else
|
|
*pp = EMPTY_PARENT_LIST;
|
|
}
|
|
|
|
static void free_saved_parents(struct rev_info *revs)
|
|
{
|
|
if (revs->saved_parents_slab)
|
|
clear_saved_parents(revs->saved_parents_slab);
|
|
}
|
|
|
|
struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit)
|
|
{
|
|
struct commit_list *parents;
|
|
|
|
if (!revs->saved_parents_slab)
|
|
return commit->parents;
|
|
|
|
parents = *saved_parents_at(revs->saved_parents_slab, commit);
|
|
if (parents == EMPTY_PARENT_LIST)
|
|
return NULL;
|
|
return parents;
|
|
}
|
|
|
|
enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
enum commit_action action = get_commit_action(revs, commit);
|
|
|
|
if (action == commit_show &&
|
|
revs->prune && revs->dense && want_ancestry(revs)) {
|
|
/*
|
|
* --full-diff on simplified parents is no good: it
|
|
* will show spurious changes from the commits that
|
|
* were elided. So we save the parents on the side
|
|
* when --full-diff is in effect.
|
|
*/
|
|
if (revs->full_diff)
|
|
save_parents(revs, commit);
|
|
if (rewrite_parents(revs, commit, rewrite_one) < 0)
|
|
return commit_error;
|
|
}
|
|
return action;
|
|
}
|
|
|
|
static void track_linear(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
if (revs->track_first_time) {
|
|
revs->linear = 1;
|
|
revs->track_first_time = 0;
|
|
} else {
|
|
struct commit_list *p;
|
|
for (p = revs->previous_parents; p; p = p->next)
|
|
if (p->item == NULL || /* first commit */
|
|
oideq(&p->item->object.oid, &commit->object.oid))
|
|
break;
|
|
revs->linear = p != NULL;
|
|
}
|
|
if (revs->reverse) {
|
|
if (revs->linear)
|
|
commit->object.flags |= TRACK_LINEAR;
|
|
}
|
|
free_commit_list(revs->previous_parents);
|
|
revs->previous_parents = copy_commit_list(commit->parents);
|
|
}
|
|
|
|
static struct commit *get_revision_1(struct rev_info *revs)
|
|
{
|
|
while (1) {
|
|
struct commit *commit;
|
|
|
|
if (revs->reflog_info)
|
|
commit = next_reflog_entry(revs->reflog_info);
|
|
else if (revs->topo_walk_info)
|
|
commit = next_topo_commit(revs);
|
|
else
|
|
commit = pop_commit(&revs->commits);
|
|
|
|
if (!commit)
|
|
return NULL;
|
|
|
|
if (revs->reflog_info)
|
|
commit->object.flags &= ~(ADDED | SEEN | SHOWN);
|
|
|
|
/*
|
|
* If we haven't done the list limiting, we need to look at
|
|
* the parents here. We also need to do the date-based limiting
|
|
* that we'd otherwise have done in limit_list().
|
|
*/
|
|
if (!revs->limited) {
|
|
if (revs->max_age != -1 &&
|
|
comparison_date(revs, commit) < revs->max_age)
|
|
continue;
|
|
|
|
if (revs->reflog_info)
|
|
try_to_simplify_commit(revs, commit);
|
|
else if (revs->topo_walk_info)
|
|
expand_topo_walk(revs, commit);
|
|
else if (process_parents(revs, commit, &revs->commits, NULL) < 0) {
|
|
if (!revs->ignore_missing_links)
|
|
die("Failed to traverse parents of commit %s",
|
|
oid_to_hex(&commit->object.oid));
|
|
}
|
|
}
|
|
|
|
switch (simplify_commit(revs, commit)) {
|
|
case commit_ignore:
|
|
continue;
|
|
case commit_error:
|
|
die("Failed to simplify parents of commit %s",
|
|
oid_to_hex(&commit->object.oid));
|
|
default:
|
|
if (revs->track_linear)
|
|
track_linear(revs, commit);
|
|
return commit;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return true for entries that have not yet been shown. (This is an
|
|
* object_array_each_func_t.)
|
|
*/
|
|
static int entry_unshown(struct object_array_entry *entry, void *cb_data UNUSED)
|
|
{
|
|
return !(entry->item->flags & SHOWN);
|
|
}
|
|
|
|
/*
|
|
* If array is on the verge of a realloc, garbage-collect any entries
|
|
* that have already been shown to try to free up some space.
|
|
*/
|
|
static void gc_boundary(struct object_array *array)
|
|
{
|
|
if (array->nr == array->alloc)
|
|
object_array_filter(array, entry_unshown, NULL);
|
|
}
|
|
|
|
static void create_boundary_commit_list(struct rev_info *revs)
|
|
{
|
|
unsigned i;
|
|
struct commit *c;
|
|
struct object_array *array = &revs->boundary_commits;
|
|
struct object_array_entry *objects = array->objects;
|
|
|
|
/*
|
|
* If revs->commits is non-NULL at this point, an error occurred in
|
|
* get_revision_1(). Ignore the error and continue printing the
|
|
* boundary commits anyway. (This is what the code has always
|
|
* done.)
|
|
*/
|
|
free_commit_list(revs->commits);
|
|
revs->commits = NULL;
|
|
|
|
/*
|
|
* Put all of the actual boundary commits from revs->boundary_commits
|
|
* into revs->commits
|
|
*/
|
|
for (i = 0; i < array->nr; i++) {
|
|
c = (struct commit *)(objects[i].item);
|
|
if (!c)
|
|
continue;
|
|
if (!(c->object.flags & CHILD_SHOWN))
|
|
continue;
|
|
if (c->object.flags & (SHOWN | BOUNDARY))
|
|
continue;
|
|
c->object.flags |= BOUNDARY;
|
|
commit_list_insert(c, &revs->commits);
|
|
}
|
|
|
|
/*
|
|
* If revs->topo_order is set, sort the boundary commits
|
|
* in topological order
|
|
*/
|
|
sort_in_topological_order(&revs->commits, revs->sort_order);
|
|
}
|
|
|
|
static struct commit *get_revision_internal(struct rev_info *revs)
|
|
{
|
|
struct commit *c = NULL;
|
|
struct commit_list *l;
|
|
|
|
if (revs->boundary == 2) {
|
|
/*
|
|
* All of the normal commits have already been returned,
|
|
* and we are now returning boundary commits.
|
|
* create_boundary_commit_list() has populated
|
|
* revs->commits with the remaining commits to return.
|
|
*/
|
|
c = pop_commit(&revs->commits);
|
|
if (c)
|
|
c->object.flags |= SHOWN;
|
|
return c;
|
|
}
|
|
|
|
/*
|
|
* If our max_count counter has reached zero, then we are done. We
|
|
* don't simply return NULL because we still might need to show
|
|
* boundary commits. But we want to avoid calling get_revision_1, which
|
|
* might do a considerable amount of work finding the next commit only
|
|
* for us to throw it away.
|
|
*
|
|
* If it is non-zero, then either we don't have a max_count at all
|
|
* (-1), or it is still counting, in which case we decrement.
|
|
*/
|
|
if (revs->max_count) {
|
|
c = get_revision_1(revs);
|
|
if (c) {
|
|
while (revs->skip_count > 0) {
|
|
revs->skip_count--;
|
|
c = get_revision_1(revs);
|
|
if (!c)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (revs->max_count > 0)
|
|
revs->max_count--;
|
|
}
|
|
|
|
if (c)
|
|
c->object.flags |= SHOWN;
|
|
|
|
if (!revs->boundary)
|
|
return c;
|
|
|
|
if (!c) {
|
|
/*
|
|
* get_revision_1() runs out the commits, and
|
|
* we are done computing the boundaries.
|
|
* switch to boundary commits output mode.
|
|
*/
|
|
revs->boundary = 2;
|
|
|
|
/*
|
|
* Update revs->commits to contain the list of
|
|
* boundary commits.
|
|
*/
|
|
create_boundary_commit_list(revs);
|
|
|
|
return get_revision_internal(revs);
|
|
}
|
|
|
|
/*
|
|
* boundary commits are the commits that are parents of the
|
|
* ones we got from get_revision_1() but they themselves are
|
|
* not returned from get_revision_1(). Before returning
|
|
* 'c', we need to mark its parents that they could be boundaries.
|
|
*/
|
|
|
|
for (l = c->parents; l; l = l->next) {
|
|
struct object *p;
|
|
p = &(l->item->object);
|
|
if (p->flags & (CHILD_SHOWN | SHOWN))
|
|
continue;
|
|
p->flags |= CHILD_SHOWN;
|
|
gc_boundary(&revs->boundary_commits);
|
|
add_object_array(p, NULL, &revs->boundary_commits);
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
struct commit *get_revision(struct rev_info *revs)
|
|
{
|
|
struct commit *c;
|
|
struct commit_list *reversed;
|
|
|
|
if (revs->reverse) {
|
|
reversed = NULL;
|
|
while ((c = get_revision_internal(revs)))
|
|
commit_list_insert(c, &reversed);
|
|
revs->commits = reversed;
|
|
revs->reverse = 0;
|
|
revs->reverse_output_stage = 1;
|
|
}
|
|
|
|
if (revs->reverse_output_stage) {
|
|
c = pop_commit(&revs->commits);
|
|
if (revs->track_linear)
|
|
revs->linear = !!(c && c->object.flags & TRACK_LINEAR);
|
|
return c;
|
|
}
|
|
|
|
c = get_revision_internal(revs);
|
|
if (c && revs->graph)
|
|
graph_update(revs->graph, c);
|
|
if (!c) {
|
|
free_saved_parents(revs);
|
|
free_commit_list(revs->previous_parents);
|
|
revs->previous_parents = NULL;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
const char *get_revision_mark(const struct rev_info *revs, const struct commit *commit)
|
|
{
|
|
if (commit->object.flags & BOUNDARY)
|
|
return "-";
|
|
else if (commit->object.flags & UNINTERESTING)
|
|
return "^";
|
|
else if (commit->object.flags & PATCHSAME)
|
|
return "=";
|
|
else if (!revs || revs->left_right) {
|
|
if (commit->object.flags & SYMMETRIC_LEFT)
|
|
return "<";
|
|
else
|
|
return ">";
|
|
} else if (revs->graph)
|
|
return "*";
|
|
else if (revs->cherry_mark)
|
|
return "+";
|
|
return "";
|
|
}
|
|
|
|
void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
|
|
{
|
|
const char *mark = get_revision_mark(revs, commit);
|
|
if (!strlen(mark))
|
|
return;
|
|
fputs(mark, stdout);
|
|
putchar(' ');
|
|
}
|