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synced 2024-08-24 02:11:08 +00:00
![brian m. carlson](/assets/img/avatar_default.png)
Oftentimes, patches created by git format-patch will be stored in version control or compared with diff. In these cases, two otherwise identical patches can have different commit hashes, leading to diff noise. Teach git format-patch a --zero-commit option that instead produces an all-zero hash to avoid this diff noise. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
888 lines
24 KiB
C
888 lines
24 KiB
C
#include "cache.h"
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#include "diff.h"
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#include "commit.h"
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#include "tag.h"
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#include "graph.h"
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#include "log-tree.h"
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#include "reflog-walk.h"
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#include "refs.h"
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#include "string-list.h"
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#include "color.h"
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#include "gpg-interface.h"
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#include "sequencer.h"
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#include "line-log.h"
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static struct decoration name_decoration = { "object names" };
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static int decoration_loaded;
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static int decoration_flags;
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static char decoration_colors[][COLOR_MAXLEN] = {
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GIT_COLOR_RESET,
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GIT_COLOR_BOLD_GREEN, /* REF_LOCAL */
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GIT_COLOR_BOLD_RED, /* REF_REMOTE */
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GIT_COLOR_BOLD_YELLOW, /* REF_TAG */
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GIT_COLOR_BOLD_MAGENTA, /* REF_STASH */
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GIT_COLOR_BOLD_CYAN, /* REF_HEAD */
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GIT_COLOR_BOLD_BLUE, /* GRAFTED */
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};
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static const char *decorate_get_color(int decorate_use_color, enum decoration_type ix)
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{
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if (want_color(decorate_use_color))
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return decoration_colors[ix];
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return "";
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}
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static int parse_decorate_color_slot(const char *slot)
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{
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/*
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* We're comparing with 'ignore-case' on
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* (because config.c sets them all tolower),
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* but let's match the letters in the literal
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* string values here with how they are
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* documented in Documentation/config.txt, for
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* consistency.
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*
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* We love being consistent, don't we?
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*/
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if (!strcasecmp(slot, "branch"))
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return DECORATION_REF_LOCAL;
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if (!strcasecmp(slot, "remoteBranch"))
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return DECORATION_REF_REMOTE;
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if (!strcasecmp(slot, "tag"))
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return DECORATION_REF_TAG;
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if (!strcasecmp(slot, "stash"))
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return DECORATION_REF_STASH;
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if (!strcasecmp(slot, "HEAD"))
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return DECORATION_REF_HEAD;
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return -1;
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}
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int parse_decorate_color_config(const char *var, const char *slot_name, const char *value)
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{
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int slot = parse_decorate_color_slot(slot_name);
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if (slot < 0)
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return 0;
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if (!value)
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return config_error_nonbool(var);
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return color_parse(value, decoration_colors[slot]);
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}
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/*
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* log-tree.c uses DIFF_OPT_TST for determining whether to use color
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* for showing the commit sha1, use the same check for --decorate
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*/
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#define decorate_get_color_opt(o, ix) \
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decorate_get_color((o)->use_color, ix)
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void add_name_decoration(enum decoration_type type, const char *name, struct object *obj)
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{
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int nlen = strlen(name);
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struct name_decoration *res = xmalloc(sizeof(*res) + nlen + 1);
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memcpy(res->name, name, nlen + 1);
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res->type = type;
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res->next = add_decoration(&name_decoration, obj, res);
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}
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const struct name_decoration *get_name_decoration(const struct object *obj)
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{
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return lookup_decoration(&name_decoration, obj);
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}
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static int add_ref_decoration(const char *refname, const struct object_id *oid,
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int flags, void *cb_data)
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{
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struct object *obj;
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enum decoration_type type = DECORATION_NONE;
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assert(cb_data == NULL);
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if (starts_with(refname, git_replace_ref_base)) {
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struct object_id original_oid;
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if (!check_replace_refs)
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return 0;
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if (get_oid_hex(refname + strlen(git_replace_ref_base),
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&original_oid)) {
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warning("invalid replace ref %s", refname);
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return 0;
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}
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obj = parse_object(original_oid.hash);
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if (obj)
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add_name_decoration(DECORATION_GRAFTED, "replaced", obj);
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return 0;
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}
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obj = parse_object(oid->hash);
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if (!obj)
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return 0;
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if (starts_with(refname, "refs/heads/"))
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type = DECORATION_REF_LOCAL;
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else if (starts_with(refname, "refs/remotes/"))
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type = DECORATION_REF_REMOTE;
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else if (starts_with(refname, "refs/tags/"))
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type = DECORATION_REF_TAG;
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else if (!strcmp(refname, "refs/stash"))
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type = DECORATION_REF_STASH;
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else if (!strcmp(refname, "HEAD"))
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type = DECORATION_REF_HEAD;
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add_name_decoration(type, refname, obj);
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while (obj->type == OBJ_TAG) {
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obj = ((struct tag *)obj)->tagged;
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if (!obj)
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break;
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if (!obj->parsed)
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parse_object(obj->oid.hash);
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add_name_decoration(DECORATION_REF_TAG, refname, obj);
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}
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return 0;
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}
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static int add_graft_decoration(const struct commit_graft *graft, void *cb_data)
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{
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struct commit *commit = lookup_commit(graft->oid.hash);
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if (!commit)
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return 0;
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add_name_decoration(DECORATION_GRAFTED, "grafted", &commit->object);
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return 0;
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}
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void load_ref_decorations(int flags)
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{
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if (!decoration_loaded) {
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decoration_loaded = 1;
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decoration_flags = flags;
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for_each_ref(add_ref_decoration, NULL);
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head_ref(add_ref_decoration, NULL);
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for_each_commit_graft(add_graft_decoration, NULL);
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}
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}
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static void show_parents(struct commit *commit, int abbrev)
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{
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struct commit_list *p;
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for (p = commit->parents; p ; p = p->next) {
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struct commit *parent = p->item;
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printf(" %s", find_unique_abbrev(parent->object.oid.hash, abbrev));
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}
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}
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static void show_children(struct rev_info *opt, struct commit *commit, int abbrev)
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{
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struct commit_list *p = lookup_decoration(&opt->children, &commit->object);
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for ( ; p; p = p->next) {
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printf(" %s", find_unique_abbrev(p->item->object.oid.hash, abbrev));
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}
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}
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/*
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* Do we have HEAD in the output, and also the branch it points at?
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* If so, find that decoration entry for that current branch.
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*/
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static const struct name_decoration *current_pointed_by_HEAD(const struct name_decoration *decoration)
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{
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const struct name_decoration *list, *head = NULL;
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const char *branch_name = NULL;
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unsigned char unused[20];
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int rru_flags;
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/* First find HEAD */
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for (list = decoration; list; list = list->next)
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if (list->type == DECORATION_REF_HEAD) {
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head = list;
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break;
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}
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if (!head)
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return NULL;
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/* Now resolve and find the matching current branch */
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branch_name = resolve_ref_unsafe("HEAD", 0, unused, &rru_flags);
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if (!(rru_flags & REF_ISSYMREF))
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return NULL;
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if (!starts_with(branch_name, "refs/"))
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return NULL;
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/* OK, do we have that ref in the list? */
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for (list = decoration; list; list = list->next)
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if ((list->type == DECORATION_REF_LOCAL) &&
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!strcmp(branch_name, list->name)) {
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return list;
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}
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return NULL;
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}
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static void show_name(struct strbuf *sb, const struct name_decoration *decoration)
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{
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if (decoration_flags == DECORATE_SHORT_REFS)
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strbuf_addstr(sb, prettify_refname(decoration->name));
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else
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strbuf_addstr(sb, decoration->name);
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}
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/*
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* The caller makes sure there is no funny color before calling.
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* format_decorations_extended makes sure the same after return.
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*/
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void format_decorations_extended(struct strbuf *sb,
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const struct commit *commit,
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int use_color,
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const char *prefix,
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const char *separator,
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const char *suffix)
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{
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const struct name_decoration *decoration;
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const struct name_decoration *current_and_HEAD;
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const char *color_commit =
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diff_get_color(use_color, DIFF_COMMIT);
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const char *color_reset =
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decorate_get_color(use_color, DECORATION_NONE);
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decoration = get_name_decoration(&commit->object);
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if (!decoration)
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return;
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current_and_HEAD = current_pointed_by_HEAD(decoration);
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while (decoration) {
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/*
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* When both current and HEAD are there, only
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* show HEAD->current where HEAD would have
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* appeared, skipping the entry for current.
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*/
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if (decoration != current_and_HEAD) {
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strbuf_addstr(sb, color_commit);
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strbuf_addstr(sb, prefix);
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strbuf_addstr(sb, color_reset);
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strbuf_addstr(sb, decorate_get_color(use_color, decoration->type));
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if (decoration->type == DECORATION_REF_TAG)
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strbuf_addstr(sb, "tag: ");
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show_name(sb, decoration);
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if (current_and_HEAD &&
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decoration->type == DECORATION_REF_HEAD) {
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strbuf_addstr(sb, color_reset);
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strbuf_addstr(sb, color_commit);
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strbuf_addstr(sb, " -> ");
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strbuf_addstr(sb, color_reset);
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strbuf_addstr(sb, decorate_get_color(use_color, current_and_HEAD->type));
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show_name(sb, current_and_HEAD);
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}
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strbuf_addstr(sb, color_reset);
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prefix = separator;
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}
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decoration = decoration->next;
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}
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strbuf_addstr(sb, color_commit);
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strbuf_addstr(sb, suffix);
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strbuf_addstr(sb, color_reset);
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}
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void show_decorations(struct rev_info *opt, struct commit *commit)
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{
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struct strbuf sb = STRBUF_INIT;
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if (opt->show_source && commit->util)
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printf("\t%s", (char *) commit->util);
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if (!opt->show_decorations)
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return;
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format_decorations(&sb, commit, opt->diffopt.use_color);
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fputs(sb.buf, stdout);
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strbuf_release(&sb);
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}
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static unsigned int digits_in_number(unsigned int number)
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{
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unsigned int i = 10, result = 1;
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while (i <= number) {
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i *= 10;
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result++;
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}
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return result;
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}
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void fmt_output_subject(struct strbuf *filename,
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const char *subject,
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struct rev_info *info)
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{
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const char *suffix = info->patch_suffix;
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int nr = info->nr;
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int start_len = filename->len;
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int max_len = start_len + FORMAT_PATCH_NAME_MAX - (strlen(suffix) + 1);
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if (0 < info->reroll_count)
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strbuf_addf(filename, "v%d-", info->reroll_count);
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strbuf_addf(filename, "%04d-%s", nr, subject);
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if (max_len < filename->len)
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strbuf_setlen(filename, max_len);
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strbuf_addstr(filename, suffix);
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}
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void fmt_output_commit(struct strbuf *filename,
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struct commit *commit,
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struct rev_info *info)
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{
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struct pretty_print_context ctx = {0};
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struct strbuf subject = STRBUF_INIT;
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format_commit_message(commit, "%f", &subject, &ctx);
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fmt_output_subject(filename, subject.buf, info);
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strbuf_release(&subject);
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}
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void log_write_email_headers(struct rev_info *opt, struct commit *commit,
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const char **subject_p,
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const char **extra_headers_p,
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int *need_8bit_cte_p)
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{
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const char *subject = NULL;
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const char *extra_headers = opt->extra_headers;
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const char *name = oid_to_hex(opt->zero_commit ?
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&null_oid : &commit->object.oid);
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*need_8bit_cte_p = 0; /* unknown */
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if (opt->total > 0) {
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static char buffer[64];
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snprintf(buffer, sizeof(buffer),
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"Subject: [%s%s%0*d/%d] ",
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opt->subject_prefix,
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*opt->subject_prefix ? " " : "",
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digits_in_number(opt->total),
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opt->nr, opt->total);
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subject = buffer;
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} else if (opt->total == 0 && opt->subject_prefix && *opt->subject_prefix) {
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static char buffer[256];
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snprintf(buffer, sizeof(buffer),
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"Subject: [%s] ",
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opt->subject_prefix);
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subject = buffer;
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} else {
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subject = "Subject: ";
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}
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printf("From %s Mon Sep 17 00:00:00 2001\n", name);
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graph_show_oneline(opt->graph);
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if (opt->message_id) {
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printf("Message-Id: <%s>\n", opt->message_id);
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graph_show_oneline(opt->graph);
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}
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if (opt->ref_message_ids && opt->ref_message_ids->nr > 0) {
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int i, n;
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n = opt->ref_message_ids->nr;
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printf("In-Reply-To: <%s>\n", opt->ref_message_ids->items[n-1].string);
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for (i = 0; i < n; i++)
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printf("%s<%s>\n", (i > 0 ? "\t" : "References: "),
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opt->ref_message_ids->items[i].string);
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graph_show_oneline(opt->graph);
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}
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if (opt->mime_boundary) {
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static char subject_buffer[1024];
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static char buffer[1024];
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struct strbuf filename = STRBUF_INIT;
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*need_8bit_cte_p = -1; /* NEVER */
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snprintf(subject_buffer, sizeof(subject_buffer) - 1,
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"%s"
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"MIME-Version: 1.0\n"
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"Content-Type: multipart/mixed;"
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" boundary=\"%s%s\"\n"
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"\n"
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"This is a multi-part message in MIME "
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"format.\n"
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"--%s%s\n"
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"Content-Type: text/plain; "
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"charset=UTF-8; format=fixed\n"
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"Content-Transfer-Encoding: 8bit\n\n",
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extra_headers ? extra_headers : "",
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mime_boundary_leader, opt->mime_boundary,
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mime_boundary_leader, opt->mime_boundary);
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extra_headers = subject_buffer;
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if (opt->numbered_files)
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strbuf_addf(&filename, "%d", opt->nr);
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else
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fmt_output_commit(&filename, commit, opt);
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snprintf(buffer, sizeof(buffer) - 1,
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"\n--%s%s\n"
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"Content-Type: text/x-patch;"
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" name=\"%s\"\n"
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"Content-Transfer-Encoding: 8bit\n"
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"Content-Disposition: %s;"
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" filename=\"%s\"\n\n",
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mime_boundary_leader, opt->mime_boundary,
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filename.buf,
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opt->no_inline ? "attachment" : "inline",
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filename.buf);
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opt->diffopt.stat_sep = buffer;
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strbuf_release(&filename);
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}
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*subject_p = subject;
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*extra_headers_p = extra_headers;
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}
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static void show_sig_lines(struct rev_info *opt, int status, const char *bol)
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{
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const char *color, *reset, *eol;
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color = diff_get_color_opt(&opt->diffopt,
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status ? DIFF_WHITESPACE : DIFF_FRAGINFO);
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reset = diff_get_color_opt(&opt->diffopt, DIFF_RESET);
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while (*bol) {
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eol = strchrnul(bol, '\n');
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printf("%s%.*s%s%s", color, (int)(eol - bol), bol, reset,
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*eol ? "\n" : "");
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graph_show_oneline(opt->graph);
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bol = (*eol) ? (eol + 1) : eol;
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}
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}
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static void show_signature(struct rev_info *opt, struct commit *commit)
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{
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struct strbuf payload = STRBUF_INIT;
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struct strbuf signature = STRBUF_INIT;
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struct strbuf gpg_output = STRBUF_INIT;
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int status;
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if (parse_signed_commit(commit, &payload, &signature) <= 0)
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goto out;
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status = verify_signed_buffer(payload.buf, payload.len,
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signature.buf, signature.len,
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&gpg_output, NULL);
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if (status && !gpg_output.len)
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strbuf_addstr(&gpg_output, "No signature\n");
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show_sig_lines(opt, status, gpg_output.buf);
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out:
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strbuf_release(&gpg_output);
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strbuf_release(&payload);
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strbuf_release(&signature);
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}
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static int which_parent(const unsigned char *sha1, const struct commit *commit)
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{
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int nth;
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const struct commit_list *parent;
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for (nth = 0, parent = commit->parents; parent; parent = parent->next) {
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if (!hashcmp(parent->item->object.oid.hash, sha1))
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return nth;
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nth++;
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}
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return -1;
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}
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static int is_common_merge(const struct commit *commit)
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{
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return (commit->parents
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&& commit->parents->next
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&& !commit->parents->next->next);
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}
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static void show_one_mergetag(struct commit *commit,
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struct commit_extra_header *extra,
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void *data)
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{
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struct rev_info *opt = (struct rev_info *)data;
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unsigned char sha1[20];
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struct tag *tag;
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struct strbuf verify_message;
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int status, nth;
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size_t payload_size, gpg_message_offset;
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hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), sha1);
|
|
tag = lookup_tag(sha1);
|
|
if (!tag)
|
|
return; /* error message already given */
|
|
|
|
strbuf_init(&verify_message, 256);
|
|
if (parse_tag_buffer(tag, extra->value, extra->len))
|
|
strbuf_addstr(&verify_message, "malformed mergetag\n");
|
|
else if (is_common_merge(commit) &&
|
|
!oidcmp(&tag->tagged->oid,
|
|
&commit->parents->next->item->object.oid))
|
|
strbuf_addf(&verify_message,
|
|
"merged tag '%s'\n", tag->tag);
|
|
else if ((nth = which_parent(tag->tagged->oid.hash, commit)) < 0)
|
|
strbuf_addf(&verify_message, "tag %s names a non-parent %s\n",
|
|
tag->tag, tag->tagged->oid.hash);
|
|
else
|
|
strbuf_addf(&verify_message,
|
|
"parent #%d, tagged '%s'\n", nth + 1, tag->tag);
|
|
gpg_message_offset = verify_message.len;
|
|
|
|
payload_size = parse_signature(extra->value, extra->len);
|
|
status = -1;
|
|
if (extra->len > payload_size) {
|
|
/* could have a good signature */
|
|
if (!verify_signed_buffer(extra->value, payload_size,
|
|
extra->value + payload_size,
|
|
extra->len - payload_size,
|
|
&verify_message, NULL))
|
|
status = 0; /* good */
|
|
else if (verify_message.len <= gpg_message_offset)
|
|
strbuf_addstr(&verify_message, "No signature\n");
|
|
/* otherwise we couldn't verify, which is shown as bad */
|
|
}
|
|
|
|
show_sig_lines(opt, status, verify_message.buf);
|
|
strbuf_release(&verify_message);
|
|
}
|
|
|
|
static void show_mergetag(struct rev_info *opt, struct commit *commit)
|
|
{
|
|
for_each_mergetag(show_one_mergetag, commit, opt);
|
|
}
|
|
|
|
void show_log(struct rev_info *opt)
|
|
{
|
|
struct strbuf msgbuf = STRBUF_INIT;
|
|
struct log_info *log = opt->loginfo;
|
|
struct commit *commit = log->commit, *parent = log->parent;
|
|
int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
|
|
const char *extra_headers = opt->extra_headers;
|
|
struct pretty_print_context ctx = {0};
|
|
|
|
opt->loginfo = NULL;
|
|
if (!opt->verbose_header) {
|
|
graph_show_commit(opt->graph);
|
|
|
|
if (!opt->graph)
|
|
put_revision_mark(opt, commit);
|
|
fputs(find_unique_abbrev(commit->object.oid.hash, abbrev_commit), stdout);
|
|
if (opt->print_parents)
|
|
show_parents(commit, abbrev_commit);
|
|
if (opt->children.name)
|
|
show_children(opt, commit, abbrev_commit);
|
|
show_decorations(opt, commit);
|
|
if (opt->graph && !graph_is_commit_finished(opt->graph)) {
|
|
putchar('\n');
|
|
graph_show_remainder(opt->graph);
|
|
}
|
|
putchar(opt->diffopt.line_termination);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If use_terminator is set, we already handled any record termination
|
|
* at the end of the last record.
|
|
* Otherwise, add a diffopt.line_termination character before all
|
|
* entries but the first. (IOW, as a separator between entries)
|
|
*/
|
|
if (opt->shown_one && !opt->use_terminator) {
|
|
/*
|
|
* If entries are separated by a newline, the output
|
|
* should look human-readable. If the last entry ended
|
|
* with a newline, print the graph output before this
|
|
* newline. Otherwise it will end up as a completely blank
|
|
* line and will look like a gap in the graph.
|
|
*
|
|
* If the entry separator is not a newline, the output is
|
|
* primarily intended for programmatic consumption, and we
|
|
* never want the extra graph output before the entry
|
|
* separator.
|
|
*/
|
|
if (opt->diffopt.line_termination == '\n' &&
|
|
!opt->missing_newline)
|
|
graph_show_padding(opt->graph);
|
|
putchar(opt->diffopt.line_termination);
|
|
}
|
|
opt->shown_one = 1;
|
|
|
|
/*
|
|
* If the history graph was requested,
|
|
* print the graph, up to this commit's line
|
|
*/
|
|
graph_show_commit(opt->graph);
|
|
|
|
/*
|
|
* Print header line of header..
|
|
*/
|
|
|
|
if (opt->commit_format == CMIT_FMT_EMAIL) {
|
|
log_write_email_headers(opt, commit, &ctx.subject, &extra_headers,
|
|
&ctx.need_8bit_cte);
|
|
} else if (opt->commit_format != CMIT_FMT_USERFORMAT) {
|
|
fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout);
|
|
if (opt->commit_format != CMIT_FMT_ONELINE)
|
|
fputs("commit ", stdout);
|
|
|
|
if (!opt->graph)
|
|
put_revision_mark(opt, commit);
|
|
fputs(find_unique_abbrev(commit->object.oid.hash, abbrev_commit),
|
|
stdout);
|
|
if (opt->print_parents)
|
|
show_parents(commit, abbrev_commit);
|
|
if (opt->children.name)
|
|
show_children(opt, commit, abbrev_commit);
|
|
if (parent)
|
|
printf(" (from %s)",
|
|
find_unique_abbrev(parent->object.oid.hash,
|
|
abbrev_commit));
|
|
fputs(diff_get_color_opt(&opt->diffopt, DIFF_RESET), stdout);
|
|
show_decorations(opt, commit);
|
|
if (opt->commit_format == CMIT_FMT_ONELINE) {
|
|
putchar(' ');
|
|
} else {
|
|
putchar('\n');
|
|
graph_show_oneline(opt->graph);
|
|
}
|
|
if (opt->reflog_info) {
|
|
/*
|
|
* setup_revisions() ensures that opt->reflog_info
|
|
* and opt->graph cannot both be set,
|
|
* so we don't need to worry about printing the
|
|
* graph info here.
|
|
*/
|
|
show_reflog_message(opt->reflog_info,
|
|
opt->commit_format == CMIT_FMT_ONELINE,
|
|
&opt->date_mode,
|
|
opt->date_mode_explicit);
|
|
if (opt->commit_format == CMIT_FMT_ONELINE)
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (opt->show_signature) {
|
|
show_signature(opt, commit);
|
|
show_mergetag(opt, commit);
|
|
}
|
|
|
|
if (!get_cached_commit_buffer(commit, NULL))
|
|
return;
|
|
|
|
if (opt->show_notes) {
|
|
int raw;
|
|
struct strbuf notebuf = STRBUF_INIT;
|
|
|
|
raw = (opt->commit_format == CMIT_FMT_USERFORMAT);
|
|
format_display_notes(commit->object.oid.hash, ¬ebuf,
|
|
get_log_output_encoding(), raw);
|
|
ctx.notes_message = notebuf.len
|
|
? strbuf_detach(¬ebuf, NULL)
|
|
: xcalloc(1, 1);
|
|
}
|
|
|
|
/*
|
|
* And then the pretty-printed message itself
|
|
*/
|
|
if (ctx.need_8bit_cte >= 0 && opt->add_signoff)
|
|
ctx.need_8bit_cte =
|
|
has_non_ascii(fmt_name(getenv("GIT_COMMITTER_NAME"),
|
|
getenv("GIT_COMMITTER_EMAIL")));
|
|
ctx.date_mode = opt->date_mode;
|
|
ctx.date_mode_explicit = opt->date_mode_explicit;
|
|
ctx.abbrev = opt->diffopt.abbrev;
|
|
ctx.after_subject = extra_headers;
|
|
ctx.preserve_subject = opt->preserve_subject;
|
|
ctx.reflog_info = opt->reflog_info;
|
|
ctx.fmt = opt->commit_format;
|
|
ctx.mailmap = opt->mailmap;
|
|
ctx.color = opt->diffopt.use_color;
|
|
ctx.output_encoding = get_log_output_encoding();
|
|
if (opt->from_ident.mail_begin && opt->from_ident.name_begin)
|
|
ctx.from_ident = &opt->from_ident;
|
|
pretty_print_commit(&ctx, commit, &msgbuf);
|
|
|
|
if (opt->add_signoff)
|
|
append_signoff(&msgbuf, 0, APPEND_SIGNOFF_DEDUP);
|
|
|
|
if ((ctx.fmt != CMIT_FMT_USERFORMAT) &&
|
|
ctx.notes_message && *ctx.notes_message) {
|
|
if (ctx.fmt == CMIT_FMT_EMAIL) {
|
|
strbuf_addstr(&msgbuf, "---\n");
|
|
opt->shown_dashes = 1;
|
|
}
|
|
strbuf_addstr(&msgbuf, ctx.notes_message);
|
|
}
|
|
|
|
if (opt->show_log_size) {
|
|
printf("log size %i\n", (int)msgbuf.len);
|
|
graph_show_oneline(opt->graph);
|
|
}
|
|
|
|
/*
|
|
* Set opt->missing_newline if msgbuf doesn't
|
|
* end in a newline (including if it is empty)
|
|
*/
|
|
if (!msgbuf.len || msgbuf.buf[msgbuf.len - 1] != '\n')
|
|
opt->missing_newline = 1;
|
|
else
|
|
opt->missing_newline = 0;
|
|
|
|
if (opt->graph)
|
|
graph_show_commit_msg(opt->graph, &msgbuf);
|
|
else
|
|
fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout);
|
|
if (opt->use_terminator && !commit_format_is_empty(opt->commit_format)) {
|
|
if (!opt->missing_newline)
|
|
graph_show_padding(opt->graph);
|
|
putchar(opt->diffopt.line_termination);
|
|
}
|
|
|
|
strbuf_release(&msgbuf);
|
|
free(ctx.notes_message);
|
|
}
|
|
|
|
int log_tree_diff_flush(struct rev_info *opt)
|
|
{
|
|
opt->shown_dashes = 0;
|
|
diffcore_std(&opt->diffopt);
|
|
|
|
if (diff_queue_is_empty()) {
|
|
int saved_fmt = opt->diffopt.output_format;
|
|
opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
|
|
diff_flush(&opt->diffopt);
|
|
opt->diffopt.output_format = saved_fmt;
|
|
return 0;
|
|
}
|
|
|
|
if (opt->loginfo && !opt->no_commit_id) {
|
|
show_log(opt);
|
|
if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) &&
|
|
opt->verbose_header &&
|
|
opt->commit_format != CMIT_FMT_ONELINE &&
|
|
!commit_format_is_empty(opt->commit_format)) {
|
|
/*
|
|
* When showing a verbose header (i.e. log message),
|
|
* and not in --pretty=oneline format, we would want
|
|
* an extra newline between the end of log and the
|
|
* diff/diffstat output for readability.
|
|
*/
|
|
int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;
|
|
if (opt->diffopt.output_prefix) {
|
|
struct strbuf *msg = NULL;
|
|
msg = opt->diffopt.output_prefix(&opt->diffopt,
|
|
opt->diffopt.output_prefix_data);
|
|
fwrite(msg->buf, msg->len, 1, stdout);
|
|
}
|
|
|
|
/*
|
|
* We may have shown three-dashes line early
|
|
* between notes and the log message, in which
|
|
* case we only want a blank line after the
|
|
* notes without (an extra) three-dashes line.
|
|
* Otherwise, we show the three-dashes line if
|
|
* we are showing the patch with diffstat, but
|
|
* in that case, there is no extra blank line
|
|
* after the three-dashes line.
|
|
*/
|
|
if (!opt->shown_dashes &&
|
|
(pch & opt->diffopt.output_format) == pch)
|
|
printf("---");
|
|
putchar('\n');
|
|
}
|
|
}
|
|
diff_flush(&opt->diffopt);
|
|
return 1;
|
|
}
|
|
|
|
static int do_diff_combined(struct rev_info *opt, struct commit *commit)
|
|
{
|
|
diff_tree_combined_merge(commit, opt->dense_combined_merges, opt);
|
|
return !opt->loginfo;
|
|
}
|
|
|
|
/*
|
|
* Show the diff of a commit.
|
|
*
|
|
* Return true if we printed any log info messages
|
|
*/
|
|
static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log)
|
|
{
|
|
int showed_log;
|
|
struct commit_list *parents;
|
|
struct object_id *oid;
|
|
|
|
if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS))
|
|
return 0;
|
|
|
|
parse_commit_or_die(commit);
|
|
oid = &commit->tree->object.oid;
|
|
|
|
/* Root commit? */
|
|
parents = get_saved_parents(opt, commit);
|
|
if (!parents) {
|
|
if (opt->show_root_diff) {
|
|
diff_root_tree_sha1(oid->hash, "", &opt->diffopt);
|
|
log_tree_diff_flush(opt);
|
|
}
|
|
return !opt->loginfo;
|
|
}
|
|
|
|
/* More than one parent? */
|
|
if (parents && parents->next) {
|
|
if (opt->ignore_merges)
|
|
return 0;
|
|
else if (opt->combine_merges)
|
|
return do_diff_combined(opt, commit);
|
|
else if (opt->first_parent_only) {
|
|
/*
|
|
* Generate merge log entry only for the first
|
|
* parent, showing summary diff of the others
|
|
* we merged _in_.
|
|
*/
|
|
parse_commit_or_die(parents->item);
|
|
diff_tree_sha1(parents->item->tree->object.oid.hash,
|
|
oid->hash, "", &opt->diffopt);
|
|
log_tree_diff_flush(opt);
|
|
return !opt->loginfo;
|
|
}
|
|
|
|
/* If we show individual diffs, show the parent info */
|
|
log->parent = parents->item;
|
|
}
|
|
|
|
showed_log = 0;
|
|
for (;;) {
|
|
struct commit *parent = parents->item;
|
|
|
|
parse_commit_or_die(parent);
|
|
diff_tree_sha1(parent->tree->object.oid.hash,
|
|
oid->hash, "", &opt->diffopt);
|
|
log_tree_diff_flush(opt);
|
|
|
|
showed_log |= !opt->loginfo;
|
|
|
|
/* Set up the log info for the next parent, if any.. */
|
|
parents = parents->next;
|
|
if (!parents)
|
|
break;
|
|
log->parent = parents->item;
|
|
opt->loginfo = log;
|
|
}
|
|
return showed_log;
|
|
}
|
|
|
|
int log_tree_commit(struct rev_info *opt, struct commit *commit)
|
|
{
|
|
struct log_info log;
|
|
int shown;
|
|
|
|
log.commit = commit;
|
|
log.parent = NULL;
|
|
opt->loginfo = &log;
|
|
|
|
if (opt->line_level_traverse)
|
|
return line_log_print(opt, commit);
|
|
|
|
if (opt->track_linear && !opt->linear && !opt->reverse_output_stage)
|
|
printf("\n%s\n", opt->break_bar);
|
|
shown = log_tree_diff(opt, commit, &log);
|
|
if (!shown && opt->loginfo && opt->always_show_header) {
|
|
log.parent = NULL;
|
|
show_log(opt);
|
|
shown = 1;
|
|
}
|
|
if (opt->track_linear && !opt->linear && opt->reverse_output_stage)
|
|
printf("\n%s\n", opt->break_bar);
|
|
opt->loginfo = NULL;
|
|
maybe_flush_or_die(stdout, "stdout");
|
|
return shown;
|
|
}
|