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![Junio C Hamano](/assets/img/avatar_default.png)
Showing the same parent more than once for a commit does not make much sense downstream, so stop it. This can happen with an incorrectly made merge commit that merges the same parent twice, but can happen in an otherwise sane development history while squishing the history by taking into account only commits that touch specified paths. For example, $ git rev-list --max-count=1 --parentsaddafaf
-- rev-list.c would have to show this commit ancestry graph: .---o---. / \ .---*---o---. /93b74bc
\ ---*---o---o-----o---o-----oaddafaf
d8f6b34
\ / .---o---o---. \ / .---*---.3815f42
where 5 independent development tracks, only two of which have changes in the specified paths since they forked. The last change for the other three development tracks was done by the same commit before they forked, and we were showing that three times. Signed-off-by: Junio C Hamano <junkio@cox.net>
943 lines
21 KiB
C
943 lines
21 KiB
C
#include "cache.h"
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#include "refs.h"
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#include "tag.h"
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#include "commit.h"
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#include "tree.h"
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#include "blob.h"
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#include "epoch.h"
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#include "diff.h"
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#define SEEN (1u << 0)
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#define INTERESTING (1u << 1)
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#define COUNTED (1u << 2)
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#define SHOWN (1u << 3)
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#define TREECHANGE (1u << 4)
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#define TMP_MARK (1u << 5) /* for isolated cases; clean after use */
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static const char rev_list_usage[] =
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"git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
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" limiting output:\n"
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" --max-count=nr\n"
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" --max-age=epoch\n"
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" --min-age=epoch\n"
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" --sparse\n"
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" --no-merges\n"
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" --remove-empty\n"
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" --all\n"
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" ordering output:\n"
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" --merge-order [ --show-breaks ]\n"
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" --topo-order\n"
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" formatting output:\n"
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" --parents\n"
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" --objects\n"
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" --unpacked\n"
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" --header | --pretty\n"
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" special purpose:\n"
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" --bisect"
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;
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static int dense = 1;
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static int unpacked = 0;
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static int bisect_list = 0;
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static int tag_objects = 0;
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static int tree_objects = 0;
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static int blob_objects = 0;
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static int verbose_header = 0;
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static int show_parents = 0;
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static int hdr_termination = 0;
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static const char *commit_prefix = "";
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static unsigned long max_age = -1;
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static unsigned long min_age = -1;
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static int max_count = -1;
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static enum cmit_fmt commit_format = CMIT_FMT_RAW;
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static int merge_order = 0;
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static int show_breaks = 0;
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static int stop_traversal = 0;
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static int topo_order = 0;
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static int no_merges = 0;
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static const char **paths = NULL;
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static int remove_empty_trees = 0;
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static void show_commit(struct commit *commit)
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{
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commit->object.flags |= SHOWN;
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if (show_breaks) {
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commit_prefix = "| ";
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if (commit->object.flags & DISCONTINUITY) {
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commit_prefix = "^ ";
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} else if (commit->object.flags & BOUNDARY) {
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commit_prefix = "= ";
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}
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}
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printf("%s%s", commit_prefix, sha1_to_hex(commit->object.sha1));
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if (show_parents) {
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struct commit_list *parents = commit->parents;
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while (parents) {
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struct object *o = &(parents->item->object);
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parents = parents->next;
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if (o->flags & TMP_MARK)
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continue;
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printf(" %s", sha1_to_hex(o->sha1));
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o->flags |= TMP_MARK;
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}
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/* TMP_MARK is a general purpose flag that can
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* be used locally, but the user should clean
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* things up after it is done with them.
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*/
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for (parents = commit->parents;
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parents;
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parents = parents->next)
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parents->item->object.flags &= ~TMP_MARK;
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}
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if (commit_format == CMIT_FMT_ONELINE)
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putchar(' ');
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else
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putchar('\n');
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if (verbose_header) {
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static char pretty_header[16384];
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pretty_print_commit(commit_format, commit, ~0, pretty_header, sizeof(pretty_header), 0);
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printf("%s%c", pretty_header, hdr_termination);
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}
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fflush(stdout);
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}
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static int rewrite_one(struct commit **pp)
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{
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for (;;) {
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struct commit *p = *pp;
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if (p->object.flags & (TREECHANGE | UNINTERESTING))
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return 0;
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if (!p->parents)
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return -1;
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*pp = p->parents->item;
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}
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}
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static void rewrite_parents(struct commit *commit)
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{
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struct commit_list **pp = &commit->parents;
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while (*pp) {
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struct commit_list *parent = *pp;
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if (rewrite_one(&parent->item) < 0) {
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*pp = parent->next;
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continue;
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}
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pp = &parent->next;
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}
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}
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static int filter_commit(struct commit * commit)
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{
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if (stop_traversal && (commit->object.flags & BOUNDARY))
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return STOP;
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if (commit->object.flags & (UNINTERESTING|SHOWN))
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return CONTINUE;
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if (min_age != -1 && (commit->date > min_age))
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return CONTINUE;
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if (max_age != -1 && (commit->date < max_age)) {
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stop_traversal=1;
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return CONTINUE;
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}
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if (no_merges && (commit->parents && commit->parents->next))
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return CONTINUE;
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if (paths && dense) {
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if (!(commit->object.flags & TREECHANGE))
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return CONTINUE;
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rewrite_parents(commit);
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}
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return DO;
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}
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static int process_commit(struct commit * commit)
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{
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int action=filter_commit(commit);
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if (action == STOP) {
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return STOP;
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}
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if (action == CONTINUE) {
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return CONTINUE;
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}
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if (max_count != -1 && !max_count--)
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return STOP;
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show_commit(commit);
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return CONTINUE;
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}
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static struct object_list **add_object(struct object *obj, struct object_list **p, const char *name)
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{
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struct object_list *entry = xmalloc(sizeof(*entry));
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entry->item = obj;
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entry->next = *p;
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entry->name = name;
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*p = entry;
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return &entry->next;
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}
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static struct object_list **process_blob(struct blob *blob, struct object_list **p, const char *name)
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{
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struct object *obj = &blob->object;
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if (!blob_objects)
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return p;
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if (obj->flags & (UNINTERESTING | SEEN))
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return p;
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obj->flags |= SEEN;
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return add_object(obj, p, name);
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}
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static struct object_list **process_tree(struct tree *tree, struct object_list **p, const char *name)
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{
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struct object *obj = &tree->object;
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struct tree_entry_list *entry;
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if (!tree_objects)
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return p;
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if (obj->flags & (UNINTERESTING | SEEN))
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return p;
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if (parse_tree(tree) < 0)
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die("bad tree object %s", sha1_to_hex(obj->sha1));
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obj->flags |= SEEN;
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p = add_object(obj, p, name);
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entry = tree->entries;
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tree->entries = NULL;
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while (entry) {
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struct tree_entry_list *next = entry->next;
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if (entry->directory)
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p = process_tree(entry->item.tree, p, entry->name);
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else
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p = process_blob(entry->item.blob, p, entry->name);
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free(entry);
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entry = next;
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}
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return p;
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}
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static struct object_list *pending_objects = NULL;
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static void show_commit_list(struct commit_list *list)
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{
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struct object_list *objects = NULL, **p = &objects, *pending;
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while (list) {
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struct commit *commit = pop_most_recent_commit(&list, SEEN);
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p = process_tree(commit->tree, p, "");
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if (process_commit(commit) == STOP)
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break;
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}
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for (pending = pending_objects; pending; pending = pending->next) {
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struct object *obj = pending->item;
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const char *name = pending->name;
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if (obj->flags & (UNINTERESTING | SEEN))
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continue;
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if (obj->type == tag_type) {
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obj->flags |= SEEN;
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p = add_object(obj, p, name);
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continue;
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}
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if (obj->type == tree_type) {
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p = process_tree((struct tree *)obj, p, name);
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continue;
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}
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if (obj->type == blob_type) {
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p = process_blob((struct blob *)obj, p, name);
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continue;
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}
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die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
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}
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while (objects) {
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/* An object with name "foo\n0000000000000000000000000000000000000000"
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* can be used confuse downstream git-pack-objects very badly.
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*/
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const char *ep = strchr(objects->name, '\n');
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if (ep) {
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printf("%s %.*s\n", sha1_to_hex(objects->item->sha1),
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(int) (ep - objects->name),
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objects->name);
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}
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else
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printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
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objects = objects->next;
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}
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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_objects)
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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_uninteresting(struct tree *tree)
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{
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struct object *obj = &tree->object;
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struct tree_entry_list *entry;
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if (!tree_objects)
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return;
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if (obj->flags & UNINTERESTING)
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return;
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obj->flags |= UNINTERESTING;
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if (!has_sha1_file(obj->sha1))
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return;
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if (parse_tree(tree) < 0)
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die("bad tree %s", sha1_to_hex(obj->sha1));
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entry = tree->entries;
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tree->entries = NULL;
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while (entry) {
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struct tree_entry_list *next = entry->next;
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if (entry->directory)
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mark_tree_uninteresting(entry->item.tree);
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else
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mark_blob_uninteresting(entry->item.blob);
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free(entry);
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entry = next;
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}
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}
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static void mark_parents_uninteresting(struct commit *commit)
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{
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struct commit_list *parents = commit->parents;
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while (parents) {
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struct commit *commit = parents->item;
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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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if (commit->parents)
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mark_parents_uninteresting(commit);
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/*
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* A missing commit is ok iff its parent is marked
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* uninteresting.
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*
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* We just mark such a thing parsed, so that when
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* it is popped next time around, we won't be trying
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* to parse it and get an error.
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*/
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if (!has_sha1_file(commit->object.sha1))
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commit->object.parsed = 1;
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parents = parents->next;
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}
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}
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static int everybody_uninteresting(struct commit_list *orig)
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{
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struct commit_list *list = orig;
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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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return 0;
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}
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return 1;
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}
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/*
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* This is a truly stupid algorithm, but it's only
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* used for bisection, and we just don't care enough.
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*
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* We care just barely enough to avoid recursing for
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* non-merge entries.
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*/
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static int count_distance(struct commit_list *entry)
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{
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int nr = 0;
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while (entry) {
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struct commit *commit = entry->item;
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struct commit_list *p;
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if (commit->object.flags & (UNINTERESTING | COUNTED))
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break;
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if (!paths || (commit->object.flags & TREECHANGE))
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nr++;
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commit->object.flags |= COUNTED;
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p = commit->parents;
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entry = p;
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if (p) {
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p = p->next;
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while (p) {
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nr += count_distance(p);
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p = p->next;
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}
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}
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}
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return nr;
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}
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static void clear_distance(struct commit_list *list)
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{
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while (list) {
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struct commit *commit = list->item;
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commit->object.flags &= ~COUNTED;
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list = list->next;
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}
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}
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static struct commit_list *find_bisection(struct commit_list *list)
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{
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int nr, closest;
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struct commit_list *p, *best;
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nr = 0;
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p = list;
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while (p) {
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if (!paths || (p->item->object.flags & TREECHANGE))
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nr++;
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p = p->next;
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}
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closest = 0;
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best = list;
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for (p = list; p; p = p->next) {
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int distance;
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if (paths && !(p->item->object.flags & TREECHANGE))
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continue;
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distance = count_distance(p);
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clear_distance(list);
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if (nr - distance < distance)
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distance = nr - distance;
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if (distance > closest) {
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best = p;
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closest = distance;
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}
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}
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if (best)
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best->next = NULL;
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return best;
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}
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static void mark_edges_uninteresting(struct commit_list *list)
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{
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for ( ; list; list = list->next) {
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struct commit_list *parents = list->item->parents;
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for ( ; parents; parents = parents->next) {
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struct commit *commit = parents->item;
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if (commit->object.flags & UNINTERESTING)
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mark_tree_uninteresting(commit->tree);
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}
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}
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}
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#define TREE_SAME 0
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#define TREE_NEW 1
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#define TREE_DIFFERENT 2
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static int tree_difference = TREE_SAME;
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static void file_add_remove(struct diff_options *options,
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int addremove, unsigned mode,
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const unsigned char *sha1,
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const char *base, const char *path)
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{
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int diff = TREE_DIFFERENT;
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/*
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* Is it an add of a new file? It means that
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* the old tree didn't have it at all, so we
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* will turn "TREE_SAME" -> "TREE_NEW", but
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* leave any "TREE_DIFFERENT" alone (and if
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* it already was "TREE_NEW", we'll keep it
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* "TREE_NEW" of course).
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*/
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if (addremove == '+') {
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diff = tree_difference;
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if (diff != TREE_SAME)
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return;
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diff = TREE_NEW;
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}
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tree_difference = diff;
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}
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|
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static void file_change(struct diff_options *options,
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unsigned old_mode, unsigned new_mode,
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const unsigned char *old_sha1,
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const unsigned char *new_sha1,
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const char *base, const char *path)
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{
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tree_difference = TREE_DIFFERENT;
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}
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static struct diff_options diff_opt = {
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.recursive = 1,
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.add_remove = file_add_remove,
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.change = file_change,
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};
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static int compare_tree(struct tree *t1, struct tree *t2)
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|
{
|
|
if (!t1)
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return TREE_NEW;
|
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if (!t2)
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return TREE_DIFFERENT;
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tree_difference = TREE_SAME;
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if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "", &diff_opt) < 0)
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return TREE_DIFFERENT;
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return tree_difference;
|
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}
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|
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static int same_tree_as_empty(struct tree *t1)
|
|
{
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|
int retval;
|
|
void *tree;
|
|
struct tree_desc empty, real;
|
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|
|
if (!t1)
|
|
return 0;
|
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|
|
tree = read_object_with_reference(t1->object.sha1, "tree", &real.size, NULL);
|
|
if (!tree)
|
|
return 0;
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|
real.buf = tree;
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|
|
empty.buf = "";
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|
empty.size = 0;
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|
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tree_difference = 0;
|
|
retval = diff_tree(&empty, &real, "", &diff_opt);
|
|
free(tree);
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|
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return retval >= 0 && !tree_difference;
|
|
}
|
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|
|
static void try_to_simplify_commit(struct commit *commit)
|
|
{
|
|
struct commit_list **pp, *parent;
|
|
|
|
if (!commit->tree)
|
|
return;
|
|
|
|
if (!commit->parents) {
|
|
if (!same_tree_as_empty(commit->tree))
|
|
commit->object.flags |= TREECHANGE;
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|
return;
|
|
}
|
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|
|
pp = &commit->parents;
|
|
while ((parent = *pp) != NULL) {
|
|
struct commit *p = parent->item;
|
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|
|
if (p->object.flags & UNINTERESTING) {
|
|
pp = &parent->next;
|
|
continue;
|
|
}
|
|
|
|
parse_commit(p);
|
|
switch (compare_tree(p->tree, commit->tree)) {
|
|
case TREE_SAME:
|
|
parent->next = NULL;
|
|
commit->parents = parent;
|
|
return;
|
|
|
|
case TREE_NEW:
|
|
if (remove_empty_trees && same_tree_as_empty(p->tree)) {
|
|
*pp = parent->next;
|
|
continue;
|
|
}
|
|
/* fallthrough */
|
|
case TREE_DIFFERENT:
|
|
pp = &parent->next;
|
|
continue;
|
|
}
|
|
die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1));
|
|
}
|
|
commit->object.flags |= TREECHANGE;
|
|
}
|
|
|
|
static void add_parents_to_list(struct commit *commit, struct commit_list **list)
|
|
{
|
|
struct commit_list *parent = commit->parents;
|
|
|
|
/*
|
|
* 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;
|
|
parse_commit(p);
|
|
p->object.flags |= UNINTERESTING;
|
|
if (p->parents)
|
|
mark_parents_uninteresting(p);
|
|
if (p->object.flags & SEEN)
|
|
continue;
|
|
p->object.flags |= SEEN;
|
|
insert_by_date(p, list);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
if (paths)
|
|
try_to_simplify_commit(commit);
|
|
|
|
parent = commit->parents;
|
|
while (parent) {
|
|
struct commit *p = parent->item;
|
|
|
|
parent = parent->next;
|
|
|
|
parse_commit(p);
|
|
if (p->object.flags & SEEN)
|
|
continue;
|
|
p->object.flags |= SEEN;
|
|
insert_by_date(p, list);
|
|
}
|
|
}
|
|
|
|
static struct commit_list *limit_list(struct commit_list *list)
|
|
{
|
|
struct commit_list *newlist = NULL;
|
|
struct commit_list **p = &newlist;
|
|
while (list) {
|
|
struct commit_list *entry = list;
|
|
struct commit *commit = list->item;
|
|
struct object *obj = &commit->object;
|
|
|
|
list = list->next;
|
|
free(entry);
|
|
|
|
if (max_age != -1 && (commit->date < max_age))
|
|
obj->flags |= UNINTERESTING;
|
|
if (unpacked && has_sha1_pack(obj->sha1))
|
|
obj->flags |= UNINTERESTING;
|
|
add_parents_to_list(commit, &list);
|
|
if (obj->flags & UNINTERESTING) {
|
|
mark_parents_uninteresting(commit);
|
|
if (everybody_uninteresting(list))
|
|
break;
|
|
continue;
|
|
}
|
|
if (min_age != -1 && (commit->date > min_age))
|
|
continue;
|
|
p = &commit_list_insert(commit, p)->next;
|
|
}
|
|
if (tree_objects)
|
|
mark_edges_uninteresting(newlist);
|
|
if (bisect_list)
|
|
newlist = find_bisection(newlist);
|
|
return newlist;
|
|
}
|
|
|
|
static void add_pending_object(struct object *obj, const char *name)
|
|
{
|
|
add_object(obj, &pending_objects, name);
|
|
}
|
|
|
|
static struct commit *get_commit_reference(const char *name, const unsigned char *sha1, unsigned int flags)
|
|
{
|
|
struct object *object;
|
|
|
|
object = parse_object(sha1);
|
|
if (!object)
|
|
die("bad object %s", name);
|
|
|
|
/*
|
|
* Tag object? Look what it points to..
|
|
*/
|
|
while (object->type == tag_type) {
|
|
struct tag *tag = (struct tag *) object;
|
|
object->flags |= flags;
|
|
if (tag_objects && !(object->flags & UNINTERESTING))
|
|
add_pending_object(object, tag->tag);
|
|
object = parse_object(tag->tagged->sha1);
|
|
if (!object)
|
|
die("bad object %s", sha1_to_hex(tag->tagged->sha1));
|
|
}
|
|
|
|
/*
|
|
* Commit object? Just return it, we'll do all the complex
|
|
* reachability crud.
|
|
*/
|
|
if (object->type == commit_type) {
|
|
struct commit *commit = (struct commit *)object;
|
|
object->flags |= flags;
|
|
if (parse_commit(commit) < 0)
|
|
die("unable to parse commit %s", name);
|
|
if (flags & UNINTERESTING)
|
|
mark_parents_uninteresting(commit);
|
|
return commit;
|
|
}
|
|
|
|
/*
|
|
* Tree object? Either mark it uniniteresting, or add it
|
|
* to the list of objects to look at later..
|
|
*/
|
|
if (object->type == tree_type) {
|
|
struct tree *tree = (struct tree *)object;
|
|
if (!tree_objects)
|
|
return NULL;
|
|
if (flags & UNINTERESTING) {
|
|
mark_tree_uninteresting(tree);
|
|
return NULL;
|
|
}
|
|
add_pending_object(object, "");
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Blob object? You know the drill by now..
|
|
*/
|
|
if (object->type == blob_type) {
|
|
struct blob *blob = (struct blob *)object;
|
|
if (!blob_objects)
|
|
return NULL;
|
|
if (flags & UNINTERESTING) {
|
|
mark_blob_uninteresting(blob);
|
|
return NULL;
|
|
}
|
|
add_pending_object(object, "");
|
|
return NULL;
|
|
}
|
|
die("%s is unknown object", name);
|
|
}
|
|
|
|
static void handle_one_commit(struct commit *com, struct commit_list **lst)
|
|
{
|
|
if (!com || com->object.flags & SEEN)
|
|
return;
|
|
com->object.flags |= SEEN;
|
|
commit_list_insert(com, lst);
|
|
}
|
|
|
|
/* for_each_ref() callback does not allow user data -- Yuck. */
|
|
static struct commit_list **global_lst;
|
|
|
|
static int include_one_commit(const char *path, const unsigned char *sha1)
|
|
{
|
|
struct commit *com = get_commit_reference(path, sha1, 0);
|
|
handle_one_commit(com, global_lst);
|
|
return 0;
|
|
}
|
|
|
|
static void handle_all(struct commit_list **lst)
|
|
{
|
|
global_lst = lst;
|
|
for_each_ref(include_one_commit);
|
|
global_lst = NULL;
|
|
}
|
|
|
|
int main(int argc, const char **argv)
|
|
{
|
|
const char *prefix = setup_git_directory();
|
|
struct commit_list *list = NULL;
|
|
int i, limited = 0;
|
|
|
|
for (i = 1 ; i < argc; i++) {
|
|
int flags;
|
|
const char *arg = argv[i];
|
|
char *dotdot;
|
|
struct commit *commit;
|
|
unsigned char sha1[20];
|
|
|
|
/* accept -<digit>, like traditilnal "head" */
|
|
if ((*arg == '-') && isdigit(arg[1])) {
|
|
max_count = atoi(arg + 1);
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-n")) {
|
|
if (++i >= argc)
|
|
die("-n requires an argument");
|
|
max_count = atoi(argv[i]);
|
|
continue;
|
|
}
|
|
if (!strncmp(arg,"-n",2)) {
|
|
max_count = atoi(arg + 2);
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--max-count=", 12)) {
|
|
max_count = atoi(arg + 12);
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--max-age=", 10)) {
|
|
max_age = atoi(arg + 10);
|
|
limited = 1;
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--min-age=", 10)) {
|
|
min_age = atoi(arg + 10);
|
|
limited = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--header")) {
|
|
verbose_header = 1;
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--pretty", 8)) {
|
|
commit_format = get_commit_format(arg+8);
|
|
verbose_header = 1;
|
|
hdr_termination = '\n';
|
|
if (commit_format == CMIT_FMT_ONELINE)
|
|
commit_prefix = "";
|
|
else
|
|
commit_prefix = "commit ";
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--no-merges", 11)) {
|
|
no_merges = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--parents")) {
|
|
show_parents = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--bisect")) {
|
|
bisect_list = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--all")) {
|
|
handle_all(&list);
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--objects")) {
|
|
tag_objects = 1;
|
|
tree_objects = 1;
|
|
blob_objects = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--unpacked")) {
|
|
unpacked = 1;
|
|
limited = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--merge-order")) {
|
|
merge_order = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--show-breaks")) {
|
|
show_breaks = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--topo-order")) {
|
|
topo_order = 1;
|
|
limited = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--dense")) {
|
|
dense = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--sparse")) {
|
|
dense = 0;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--remove-empty")) {
|
|
remove_empty_trees = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--")) {
|
|
i++;
|
|
break;
|
|
}
|
|
|
|
if (show_breaks && !merge_order)
|
|
usage(rev_list_usage);
|
|
|
|
flags = 0;
|
|
dotdot = strstr(arg, "..");
|
|
if (dotdot) {
|
|
unsigned char from_sha1[20];
|
|
char *next = dotdot + 2;
|
|
*dotdot = 0;
|
|
if (!*next)
|
|
next = "HEAD";
|
|
if (!get_sha1(arg, from_sha1) && !get_sha1(next, sha1)) {
|
|
struct commit *exclude;
|
|
struct commit *include;
|
|
|
|
exclude = get_commit_reference(arg, from_sha1, UNINTERESTING);
|
|
include = get_commit_reference(next, sha1, 0);
|
|
if (!exclude || !include)
|
|
die("Invalid revision range %s..%s", arg, next);
|
|
limited = 1;
|
|
handle_one_commit(exclude, &list);
|
|
handle_one_commit(include, &list);
|
|
continue;
|
|
}
|
|
*dotdot = '.';
|
|
}
|
|
if (*arg == '^') {
|
|
flags = UNINTERESTING;
|
|
arg++;
|
|
limited = 1;
|
|
}
|
|
if (get_sha1(arg, sha1) < 0) {
|
|
struct stat st;
|
|
if (lstat(arg, &st) < 0)
|
|
die("'%s': %s", arg, strerror(errno));
|
|
break;
|
|
}
|
|
commit = get_commit_reference(arg, sha1, flags);
|
|
handle_one_commit(commit, &list);
|
|
}
|
|
|
|
if (!list &&
|
|
(!(tag_objects||tree_objects||blob_objects) && !pending_objects))
|
|
usage(rev_list_usage);
|
|
|
|
paths = get_pathspec(prefix, argv + i);
|
|
if (paths) {
|
|
limited = 1;
|
|
diff_tree_setup_paths(paths);
|
|
}
|
|
|
|
save_commit_buffer = verbose_header;
|
|
track_object_refs = 0;
|
|
|
|
if (!merge_order) {
|
|
sort_by_date(&list);
|
|
if (list && !limited && max_count == 1 &&
|
|
!tag_objects && !tree_objects && !blob_objects) {
|
|
show_commit(list->item);
|
|
return 0;
|
|
}
|
|
if (limited)
|
|
list = limit_list(list);
|
|
if (topo_order)
|
|
sort_in_topological_order(&list);
|
|
show_commit_list(list);
|
|
} else {
|
|
#ifndef NO_OPENSSL
|
|
if (sort_list_in_merge_order(list, &process_commit)) {
|
|
die("merge order sort failed\n");
|
|
}
|
|
#else
|
|
die("merge order sort unsupported, OpenSSL not linked");
|
|
#endif
|
|
}
|
|
|
|
return 0;
|
|
}
|