diff options
| -rw-r--r-- | Documentation/git-describe.txt | 4 | ||||
| -rw-r--r-- | builtin-describe.c | 22 | ||||
| -rw-r--r-- | builtin-name-rev.c | 34 |
3 files changed, 45 insertions, 15 deletions
diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt index 0742152b8..1c3dfb40c 100644 --- a/Documentation/git-describe.txt +++ b/Documentation/git-describe.txt @@ -51,6 +51,10 @@ OPTIONS being employed to standard error. The tag name will still be printed to standard out. +--match <pattern>:: + Only consider tags matching the given pattern (can be used to avoid + leaking private tags made from the repository). + EXAMPLES -------- diff --git a/builtin-describe.c b/builtin-describe.c index 7a148a2c2..342848313 100644 --- a/builtin-describe.c +++ b/builtin-describe.c @@ -19,6 +19,7 @@ static int all; /* Default to annotated tags only */ static int tags; /* But allow any tags if --tags is specified */ static int abbrev = DEFAULT_ABBREV; static int max_candidates = 10; +const char *pattern = NULL; struct commit_name { int prio; /* annotated tag = 2, tag = 1, head = 0 */ @@ -57,9 +58,11 @@ static int get_name(const char *path, const unsigned char *sha1, int flag, void * Otherwise only annotated tags are used. */ if (!prefixcmp(path, "refs/tags/")) { - if (object->type == OBJ_TAG) + if (object->type == OBJ_TAG) { prio = 2; - else + if (pattern && fnmatch(pattern, path + 10, 0)) + prio = 0; + } else prio = 1; } else @@ -253,7 +256,9 @@ int cmd_describe(int argc, const char **argv, const char *prefix) OPT_BOOLEAN(0, "tags", &tags, "use any tag in .git/refs/tags"), OPT__ABBREV(&abbrev), OPT_INTEGER(0, "candidates", &max_candidates, - "consider <n> most recent tags (default: 10)"), + "consider <n> most recent tags (default: 10)"), + OPT_STRING(0, "match", &pattern, "pattern", + "only consider tags matching <pattern>"), OPT_END(), }; @@ -266,12 +271,19 @@ int cmd_describe(int argc, const char **argv, const char *prefix) save_commit_buffer = 0; if (contains) { - const char **args = xmalloc((4 + argc) * sizeof(char*)); + const char **args = xmalloc((6 + argc) * sizeof(char*)); int i = 0; args[i++] = "name-rev"; args[i++] = "--name-only"; - if (!all) + args[i++] = "--no-undefined"; + if (!all) { args[i++] = "--tags"; + if (pattern) { + char *s = xmalloc(strlen("--refs=refs/tags/") + strlen(pattern) + 1); + sprintf(s, "--refs=refs/tags/%s", pattern); + args[i++] = s; + } + } memcpy(args + i, argv, argc * sizeof(char*)); args[i + argc] = NULL; return cmd_name_rev(i + argc, args, prefix); diff --git a/builtin-name-rev.c b/builtin-name-rev.c index a0c89a827..f22c8b5f5 100644 --- a/builtin-name-rev.c +++ b/builtin-name-rev.c @@ -125,18 +125,18 @@ static int name_ref(const char *path, const unsigned char *sha1, int flags, void } /* returns a static buffer */ -static const char* get_rev_name(struct object *o) +static const char *get_rev_name(struct object *o) { static char buffer[1024]; struct rev_name *n; struct commit *c; if (o->type != OBJ_COMMIT) - return "undefined"; + return NULL; c = (struct commit *) o; n = c->util; if (!n) - return "undefined"; + return NULL; if (!n->generation) return n->tip_name; @@ -159,7 +159,7 @@ static char const * const name_rev_usage[] = { int cmd_name_rev(int argc, const char **argv, const char *prefix) { struct object_array revs = { 0, 0, NULL }; - int all = 0, transform_stdin = 0; + int all = 0, transform_stdin = 0, allow_undefined = 1; struct name_ref_data data = { 0, 0, NULL }; struct option opts[] = { OPT_BOOLEAN(0, "name-only", &data.name_only, "print only names (no SHA-1)"), @@ -169,6 +169,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) OPT_GROUP(""), OPT_BOOLEAN(0, "all", &all, "list all commits reachable from all refs"), OPT_BOOLEAN(0, "stdin", &transform_stdin, "read from stdin"), + OPT_BOOLEAN(0, "undefined", &allow_undefined, "allow to print `undefined` names"), OPT_END(), }; @@ -226,7 +227,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) else if (++forty == 40 && !ishex(*(p+1))) { unsigned char sha1[40]; - const char *name = "undefined"; + const char *name = NULL; char c = *(p+1); forty = 0; @@ -240,11 +241,10 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) } *(p+1) = c; - if (!strcmp(name, "undefined")) + if (!name) continue; - fwrite(p_start, p - p_start + 1, 1, - stdout); + fwrite(p_start, p - p_start + 1, 1, stdout); printf(" (%s)", name); p_start = p + 1; } @@ -260,18 +260,32 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) max = get_max_object_index(); for (i = 0; i < max; i++) { struct object * obj = get_indexed_object(i); + const char *name; if (!obj) continue; if (!data.name_only) printf("%s ", sha1_to_hex(obj->sha1)); - printf("%s\n", get_rev_name(obj)); + name = get_rev_name(obj); + if (name) + printf("%s\n", name); + else if (allow_undefined) + printf("undefined\n"); + else + die("cannot describe '%s'", sha1_to_hex(obj->sha1)); } } else { int i; for (i = 0; i < revs.nr; i++) { + const char *name; if (!data.name_only) printf("%s ", revs.objects[i].name); - printf("%s\n", get_rev_name(revs.objects[i].item)); + name = get_rev_name(revs.objects[i].item); + if (name) + printf("%s\n", name); + else if (allow_undefined) + printf("undefined\n"); + else + die("cannot describe '%s'", sha1_to_hex(revs.objects[i].item->sha1)); } } |