#include "exec_cmd.h"
#include "parse-options.h"
#include "diff.h"
+#include "hash.h"
#define SEEN (1u<<0)
#define MAX_TAGS (FLAG_BITS - 1)
static const char * const describe_usage[] = {
- "git describe [options] <committish>*",
- "git describe [options] --dirty",
+ N_("git describe [options] <committish>*"),
+ N_("git describe [options] --dirty"),
NULL
};
static int all; /* Any valid ref can be used */
static int tags; /* Allow lightweight tags */
static int longformat;
-static int abbrev = DEFAULT_ABBREV;
+static int abbrev = -1; /* unspecified */
static int max_candidates = 10;
-static int found_names;
+static struct hash_table names;
+static int have_util;
static const char *pattern;
static int always;
static const char *dirty;
struct commit_name {
+ struct commit_name *next;
+ unsigned char peeled[20];
struct tag *tag;
- int prio; /* annotated tag = 2, tag = 1, head = 0 */
+ unsigned prio:2; /* annotated tag = 2, tag = 1, head = 0 */
+ unsigned name_checked:1;
unsigned char sha1[20];
- char path[FLEX_ARRAY]; /* more */
+ const char *path;
};
static const char *prio_names[] = {
"head", "lightweight", "annotated",
};
+static inline unsigned int hash_sha1(const unsigned char *sha1)
+{
+ unsigned int hash;
+ memcpy(&hash, sha1, sizeof(hash));
+ return hash;
+}
+
+static inline struct commit_name *find_commit_name(const unsigned char *peeled)
+{
+ struct commit_name *n = lookup_hash(hash_sha1(peeled), &names);
+ while (n && !!hashcmp(peeled, n->peeled))
+ n = n->next;
+ return n;
+}
+
+static int set_util(void *chain, void *data)
+{
+ struct commit_name *n;
+ for (n = chain; n; n = n->next) {
+ struct commit *c = lookup_commit_reference_gently(n->peeled, 1);
+ if (c)
+ c->util = n;
+ }
+ return 0;
+}
+
+static int replace_name(struct commit_name *e,
+ int prio,
+ const unsigned char *sha1,
+ struct tag **tag)
+{
+ if (!e || e->prio < prio)
+ return 1;
+
+ if (e->prio == 2 && prio == 2) {
+ /* Multiple annotated tags point to the same commit.
+ * Select one to keep based upon their tagger date.
+ */
+ struct tag *t;
+
+ if (!e->tag) {
+ t = lookup_tag(e->sha1);
+ if (!t || parse_tag(t))
+ return 1;
+ e->tag = t;
+ }
+
+ t = lookup_tag(sha1);
+ if (!t || parse_tag(t))
+ return 0;
+ *tag = t;
+
+ if (e->tag->date < t->date)
+ return 1;
+ }
+
+ return 0;
+}
+
static void add_to_known_names(const char *path,
- struct commit *commit,
+ const unsigned char *peeled,
int prio,
const unsigned char *sha1)
{
- struct commit_name *e = commit->util;
- if (!e || e->prio < prio) {
- size_t len = strlen(path)+1;
- free(e);
- e = xmalloc(sizeof(struct commit_name) + len);
- e->tag = NULL;
+ struct commit_name *e = find_commit_name(peeled);
+ struct tag *tag = NULL;
+ if (replace_name(e, prio, sha1, &tag)) {
+ if (!e) {
+ void **pos;
+ e = xmalloc(sizeof(struct commit_name));
+ hashcpy(e->peeled, peeled);
+ pos = insert_hash(hash_sha1(peeled), e, &names);
+ if (pos) {
+ e->next = *pos;
+ *pos = e;
+ } else {
+ e->next = NULL;
+ }
+ }
+ e->tag = tag;
e->prio = prio;
+ e->name_checked = 0;
hashcpy(e->sha1, sha1);
- memcpy(e->path, path, len);
- commit->util = e;
+ e->path = path;
}
- found_names = 1;
}
static int get_name(const char *path, const unsigned char *sha1, int flag, void *cb_data)
{
int might_be_tag = !prefixcmp(path, "refs/tags/");
- struct commit *commit;
- struct object *object;
unsigned char peeled[20];
int is_tag, prio;
return 0;
if (!peel_ref(path, peeled) && !is_null_sha1(peeled)) {
- commit = lookup_commit_reference_gently(peeled, 1);
- if (!commit)
- return 0;
- is_tag = !!hashcmp(sha1, commit->object.sha1);
+ is_tag = !!hashcmp(sha1, peeled);
} else {
- commit = lookup_commit_reference_gently(sha1, 1);
- object = parse_object(sha1);
- if (!commit || !object)
- return 0;
- is_tag = object->type == OBJ_TAG;
+ hashcpy(peeled, sha1);
+ is_tag = 0;
}
/* If --all, then any refs are used.
if (!prio)
return 0;
}
- add_to_known_names(all ? path + 5 : path + 10, commit, prio, sha1);
+ add_to_known_names(all ? path + 5 : path + 10, peeled, prio, sha1);
return 0;
}
struct commit *p = parents->item;
parse_commit(p);
if (!(p->object.flags & SEEN))
- insert_by_date(p, list);
+ commit_list_insert_by_date(p, list);
p->object.flags |= c->object.flags;
parents = parents->next;
}
{
if (n->prio == 2 && !n->tag) {
n->tag = lookup_tag(n->sha1);
- if (!n->tag || parse_tag(n->tag) || !n->tag->tag)
- die("annotated tag %s not available", n->path);
+ if (!n->tag || parse_tag(n->tag))
+ die(_("annotated tag %s not available"), n->path);
+ }
+ if (n->tag && !n->name_checked) {
+ if (!n->tag->tag)
+ die(_("annotated tag %s has no embedded name"), n->path);
if (strcmp(n->tag->tag, all ? n->path + 5 : n->path))
- warning("tag '%s' is really '%s' here", n->tag->tag, n->path);
+ warning(_("tag '%s' is really '%s' here"), n->tag->tag, n->path);
+ n->name_checked = 1;
}
if (n->tag)
unsigned int unannotated_cnt = 0;
if (get_sha1(arg, sha1))
- die("Not a valid object name %s", arg);
+ die(_("Not a valid object name %s"), arg);
cmit = lookup_commit_reference(sha1);
if (!cmit)
- die("%s is not a valid '%s' object", arg, commit_type);
+ die(_("%s is not a valid '%s' object"), arg, commit_type);
- n = cmit->util;
+ n = find_commit_name(cmit->object.sha1);
if (n && (tags || all || n->prio == 2)) {
/*
* Exact match to an existing ref.
}
if (!max_candidates)
- die("no tag exactly matches '%s'", sha1_to_hex(cmit->object.sha1));
+ die(_("no tag exactly matches '%s'"), sha1_to_hex(cmit->object.sha1));
if (debug)
- fprintf(stderr, "searching to describe %s\n", arg);
+ fprintf(stderr, _("searching to describe %s\n"), arg);
+
+ if (!have_util) {
+ for_each_hash(&names, set_util, NULL);
+ have_util = 1;
+ }
list = NULL;
cmit->object.flags = SEEN;
}
if (annotated_cnt && !list) {
if (debug)
- fprintf(stderr, "finished search at %s\n",
+ fprintf(stderr, _("finished search at %s\n"),
sha1_to_hex(c->object.sha1));
break;
}
struct commit *p = parents->item;
parse_commit(p);
if (!(p->object.flags & SEEN))
- insert_by_date(p, &list);
+ commit_list_insert_by_date(p, &list);
p->object.flags |= c->object.flags;
parents = parents->next;
}
return;
}
if (unannotated_cnt)
- die("No annotated tags can describe '%s'.\n"
- "However, there were unannotated tags: try --tags.",
+ die(_("No annotated tags can describe '%s'.\n"
+ "However, there were unannotated tags: try --tags."),
sha1_to_hex(sha1));
else
- die("No tags can describe '%s'.\n"
- "Try --always, or create some tags.",
+ die(_("No tags can describe '%s'.\n"
+ "Try --always, or create some tags."),
sha1_to_hex(sha1));
}
qsort(all_matches, match_cnt, sizeof(all_matches[0]), compare_pt);
if (gave_up_on) {
- insert_by_date(gave_up_on, &list);
+ commit_list_insert_by_date(gave_up_on, &list);
seen_commits--;
}
seen_commits += finish_depth_computation(&list, &all_matches[0]);
prio_names[t->name->prio],
t->depth, t->name->path);
}
- fprintf(stderr, "traversed %lu commits\n", seen_commits);
+ fprintf(stderr, _("traversed %lu commits\n"), seen_commits);
if (gave_up_on) {
fprintf(stderr,
- "more than %i tags found; listed %i most recent\n"
- "gave up search at %s\n",
+ _("more than %i tags found; listed %i most recent\n"
+ "gave up search at %s\n"),
max_candidates, max_candidates,
sha1_to_hex(gave_up_on->object.sha1));
}
{
int contains = 0;
struct option options[] = {
- OPT_BOOLEAN(0, "contains", &contains, "find the tag that comes after the commit"),
- OPT_BOOLEAN(0, "debug", &debug, "debug search strategy on stderr"),
- OPT_BOOLEAN(0, "all", &all, "use any ref in .git/refs"),
- OPT_BOOLEAN(0, "tags", &tags, "use any tag in .git/refs/tags"),
- OPT_BOOLEAN(0, "long", &longformat, "always use long format"),
+ OPT_BOOLEAN(0, "contains", &contains, N_("find the tag that comes after the commit")),
+ OPT_BOOLEAN(0, "debug", &debug, N_("debug search strategy on stderr")),
+ OPT_BOOLEAN(0, "all", &all, N_("use any ref in .git/refs")),
+ OPT_BOOLEAN(0, "tags", &tags, N_("use any tag in .git/refs/tags")),
+ OPT_BOOLEAN(0, "long", &longformat, N_("always use long format")),
OPT__ABBREV(&abbrev),
OPT_SET_INT(0, "exact-match", &max_candidates,
- "only output exact matches", 0),
+ N_("only output exact matches"), 0),
OPT_INTEGER(0, "candidates", &max_candidates,
- "consider <n> most recent tags (default: 10)"),
- OPT_STRING(0, "match", &pattern, "pattern",
- "only consider tags matching <pattern>"),
+ N_("consider <n> most recent tags (default: 10)")),
+ OPT_STRING(0, "match", &pattern, N_("pattern"),
+ N_("only consider tags matching <pattern>")),
OPT_BOOLEAN(0, "always", &always,
- "show abbreviated commit object as fallback"),
- {OPTION_STRING, 0, "dirty", &dirty, "mark",
- "append <mark> on dirty working tree (default: \"-dirty\")",
+ N_("show abbreviated commit object as fallback")),
+ {OPTION_STRING, 0, "dirty", &dirty, N_("mark"),
+ N_("append <mark> on dirty working tree (default: \"-dirty\")"),
PARSE_OPT_OPTARG, NULL, (intptr_t) "-dirty"},
OPT_END(),
};
+ git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, options, describe_usage, 0);
+ if (abbrev < 0)
+ abbrev = DEFAULT_ABBREV;
+
if (max_candidates < 0)
max_candidates = 0;
else if (max_candidates > MAX_TAGS)
save_commit_buffer = 0;
if (longformat && abbrev == 0)
- die("--long is incompatible with --abbrev=0");
+ die(_("--long is incompatible with --abbrev=0"));
if (contains) {
const char **args = xmalloc((7 + argc) * sizeof(char *));
return cmd_name_rev(i + argc, args, prefix);
}
- for_each_ref(get_name, NULL);
- if (!found_names && !always)
- die("No names found, cannot describe anything.");
+ init_hash(&names);
+ for_each_rawref(get_name, NULL);
+ if (!names.nr && !always)
+ die(_("No names found, cannot describe anything."));
if (argc == 0) {
- if (dirty && !cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1, diff_index_args, prefix))
- dirty = NULL;
+ if (dirty) {
+ static struct lock_file index_lock;
+ int fd;
+
+ read_cache_preload(NULL);
+ refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED,
+ NULL, NULL, NULL);
+ fd = hold_locked_index(&index_lock, 0);
+ if (0 <= fd)
+ update_index_if_able(&the_index, &index_lock);
+
+ if (!cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1,
+ diff_index_args, prefix))
+ dirty = NULL;
+ }
describe("HEAD", 1);
} else if (dirty) {
- die("--dirty is incompatible with committishes");
+ die(_("--dirty is incompatible with committishes"));
} else {
while (argc-- > 0) {
describe(*argv++, argc == 0);