diff options
| -rw-r--r-- | builtin/describe.c | 31 | ||||
| -rw-r--r-- | builtin/name-rev.c | 119 | ||||
| -rwxr-xr-x | t/t6120-describe.sh | 24 |
3 files changed, 142 insertions, 32 deletions
diff --git a/builtin/describe.c b/builtin/describe.c index 4e675c3d0d..7d73722f59 100644 --- a/builtin/describe.c +++ b/builtin/describe.c @@ -7,6 +7,7 @@ #include "parse-options.h" #include "diff.h" #include "hash.h" +#include "argv-array.h" #define SEEN (1u<<0) #define MAX_TAGS (FLAG_BITS - 1) @@ -442,24 +443,24 @@ int cmd_describe(int argc, const char **argv, const char *prefix) die(_("--long is incompatible with --abbrev=0")); if (contains) { - const char **args = xmalloc((7 + argc) * sizeof(char *)); - int i = 0; - args[i++] = "name-rev"; - args[i++] = "--name-only"; - args[i++] = "--no-undefined"; + struct argv_array args; + + argv_array_init(&args); + argv_array_pushl(&args, "name-rev", + "--peel-tag", "--name-only", "--no-undefined", + NULL); if (always) - args[i++] = "--always"; + argv_array_push(&args, "--always"); 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; - } + argv_array_push(&args, "--tags"); + if (pattern) + argv_array_pushf(&args, "--refs=refs/tags/%s", pattern); + } + while (*argv) { + argv_array_push(&args, *argv); + argv++; } - memcpy(args + i, argv, argc * sizeof(char *)); - args[i + argc] = NULL; - return cmd_name_rev(i + argc, args, prefix); + return cmd_name_rev(args.argc, args.argv, prefix); } init_hash(&names); diff --git a/builtin/name-rev.c b/builtin/name-rev.c index 87d485496f..0aaa19e4ab 100644 --- a/builtin/name-rev.c +++ b/builtin/name-rev.c @@ -4,6 +4,7 @@ #include "tag.h" #include "refs.h" #include "parse-options.h" +#include "sha1-lookup.h" #define CUTOFF_DATE_SLOP 86400 /* one day */ @@ -96,12 +97,51 @@ static int subpath_matches(const char *path, const char *filter) return -1; } +static const char *name_ref_abbrev(const char *refname, int shorten_unambiguous) +{ + if (shorten_unambiguous) + refname = shorten_unambiguous_ref(refname, 0); + else if (!prefixcmp(refname, "refs/heads/")) + refname = refname + 11; + else if (!prefixcmp(refname, "refs/")) + refname = refname + 5; + return refname; +} + struct name_ref_data { int tags_only; int name_only; const char *ref_filter; }; +static struct tip_table { + struct tip_table_entry { + unsigned char sha1[20]; + const char *refname; + } *table; + int nr; + int alloc; + int sorted; +} tip_table; + +static void add_to_tip_table(const unsigned char *sha1, const char *refname, + int shorten_unambiguous) +{ + refname = name_ref_abbrev(refname, shorten_unambiguous); + + ALLOC_GROW(tip_table.table, tip_table.nr + 1, tip_table.alloc); + hashcpy(tip_table.table[tip_table.nr].sha1, sha1); + tip_table.table[tip_table.nr].refname = xstrdup(refname); + tip_table.nr++; + tip_table.sorted = 0; +} + +static int tipcmp(const void *a_, const void *b_) +{ + const struct tip_table_entry *a = a_, *b = b_; + return hashcmp(a->sha1, b->sha1); +} + static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data) { struct object *o = parse_object(sha1); @@ -124,6 +164,8 @@ static int name_ref(const char *path, const unsigned char *sha1, int flags, void } } + add_to_tip_table(sha1, path, can_abbreviate_output); + while (o && o->type == OBJ_TAG) { struct tag *t = (struct tag *) o; if (!t->tagged) @@ -134,18 +176,38 @@ static int name_ref(const char *path, const unsigned char *sha1, int flags, void if (o && o->type == OBJ_COMMIT) { struct commit *commit = (struct commit *)o; - if (can_abbreviate_output) - path = shorten_unambiguous_ref(path, 0); - else if (!prefixcmp(path, "refs/heads/")) - path = path + 11; - else if (!prefixcmp(path, "refs/")) - path = path + 5; - + path = name_ref_abbrev(path, can_abbreviate_output); name_rev(commit, xstrdup(path), 0, 0, deref); } return 0; } +static const unsigned char *nth_tip_table_ent(size_t ix, void *table_) +{ + struct tip_table_entry *table = table_; + return table[ix].sha1; +} + +static const char *get_exact_ref_match(const struct object *o) +{ + int found; + + if (!tip_table.table || !tip_table.nr) + return NULL; + + if (!tip_table.sorted) { + qsort(tip_table.table, tip_table.nr, sizeof(*tip_table.table), + tipcmp); + tip_table.sorted = 1; + } + + found = sha1_pos(o->sha1, tip_table.table, tip_table.nr, + nth_tip_table_ent); + if (0 <= found) + return tip_table.table[found].refname; + return NULL; +} + /* returns a static buffer */ static const char *get_rev_name(const struct object *o) { @@ -154,7 +216,7 @@ static const char *get_rev_name(const struct object *o) struct commit *c; if (o->type != OBJ_COMMIT) - return NULL; + return get_exact_ref_match(o); c = (struct commit *) o; n = c->util; if (!n) @@ -245,7 +307,7 @@ static void name_rev_line(char *p, struct name_ref_data *data) int cmd_name_rev(int argc, const char **argv, const char *prefix) { struct object_array revs = OBJECT_ARRAY_INIT; - int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0; + int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0, peel_tag = 0; struct name_ref_data data = { 0, 0, NULL }; struct option opts[] = { OPT_BOOLEAN(0, "name-only", &data.name_only, N_("print only names (no SHA-1)")), @@ -258,6 +320,12 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) OPT_BOOLEAN(0, "undefined", &allow_undefined, N_("allow to print `undefined` names")), OPT_BOOLEAN(0, "always", &always, N_("show abbreviated commit object as fallback")), + { + /* A Hidden OPT_BOOL */ + OPTION_SET_INT, 0, "peel-tag", &peel_tag, NULL, + N_("dereference tags in the input (internal use)"), + PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1, + }, OPT_END(), }; @@ -272,7 +340,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) for (; argc; argc--, argv++) { unsigned char sha1[20]; - struct object *o; + struct object *object; struct commit *commit; if (get_sha1(*argv, sha1)) { @@ -281,17 +349,34 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) continue; } - o = deref_tag(parse_object(sha1), *argv, 0); - if (!o || o->type != OBJ_COMMIT) { - fprintf(stderr, "Could not get commit for %s. Skipping.\n", + commit = NULL; + object = parse_object(sha1); + if (object) { + struct object *peeled = deref_tag(object, *argv, 0); + if (peeled && peeled->type == OBJ_COMMIT) + commit = (struct commit *)peeled; + } + + if (!object) { + fprintf(stderr, "Could not get object for %s. Skipping.\n", *argv); continue; } - commit = (struct commit *)o; - if (cutoff > commit->date) - cutoff = commit->date; - add_object_array((struct object *)commit, *argv, &revs); + if (commit) { + if (cutoff > commit->date) + cutoff = commit->date; + } + + if (peel_tag) { + if (!commit) { + fprintf(stderr, "Could not get commit for %s. Skipping.\n", + *argv); + continue; + } + object = (struct object *)commit; + } + add_object_array(object, *argv, &revs); } if (cutoff) diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh index a25729f2a7..c0e5b2a627 100755 --- a/t/t6120-describe.sh +++ b/t/t6120-describe.sh @@ -174,4 +174,28 @@ check_describe "test2-lightweight-*" --tags --match="test2-*" check_describe "test2-lightweight-*" --long --tags --match="test2-*" HEAD^ +test_expect_success 'name-rev with exact tags' ' + echo A >expect && + tag_object=$(git rev-parse refs/tags/A) && + git name-rev --tags --name-only $tag_object >actual && + test_cmp expect actual && + + echo "A^0" >expect && + tagged_commit=$(git rev-parse "refs/tags/A^0") && + git name-rev --tags --name-only $tagged_commit >actual && + test_cmp expect actual +' + +test_expect_success 'describe --contains with the exact tags' ' + echo "A^0" >expect && + tag_object=$(git rev-parse refs/tags/A) && + git describe --contains $tag_object >actual && + test_cmp expect actual && + + echo "A^0" >expect && + tagged_commit=$(git rev-parse "refs/tags/A^0") && + git describe --contains $tagged_commit >actual && + test_cmp expect actual +' + test_done |