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tag: add pattern based retrieval of list of tag names
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417a581d92
commit
2b5af615e1
@ -235,6 +235,29 @@ GIT_EXTERN(int) git_tag_list(
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git_strarray *tag_names,
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git_repository *repo);
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/**
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* Fill a list with all the tags in the Repository
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* which name match a defined pattern
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*
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* If an empty pattern is provided, all the tags
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* will be returned.
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*
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* The string array will be filled with the names of the
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* matching tags; these values are owned by the user and
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* should be free'd manually when no longer needed, using
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* `git_strarray_free`.
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*
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* @param tag_names Pointer to a git_strarray structure where
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* the tag names will be stored
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* @param pattern Standard fnmatch pattern
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* @param repo Repository where to find the tags
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* @return 0 on success; error code otherwise
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*/
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GIT_EXTERN(int) git_tag_list_match(
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git_strarray *tag_names,
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const char *pattern,
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git_repository *repo);
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/** @} */
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GIT_END_DECL
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#endif
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32
src/tag.c
32
src/tag.c
@ -364,23 +364,42 @@ int git_tag__parse(git_tag *tag, git_odb_object *obj)
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return parse_tag_buffer(tag, obj->raw.data, (char *)obj->raw.data + obj->raw.len);
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}
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typedef struct {
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git_vector *taglist;
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const char *pattern;
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} tag_filter_data;
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#define GIT_REFS_TAGS_DIR_LEN STRLEN(GIT_REFS_TAGS_DIR)
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static int tag_list_cb(const char *tag_name, void *payload)
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{
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if (git__prefixcmp(tag_name, GIT_REFS_TAGS_DIR) == 0)
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return git_vector_insert((git_vector *)payload, git__strdup(tag_name));
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tag_filter_data *filter;
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if (git__prefixcmp(tag_name, GIT_REFS_TAGS_DIR) != 0)
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return GIT_SUCCESS;
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filter = (tag_filter_data *)payload;
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if (!*filter->pattern || p_fnmatch(filter->pattern, tag_name + GIT_REFS_TAGS_DIR_LEN, 0) == GIT_SUCCESS)
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return git_vector_insert(filter->taglist, git__strdup(tag_name));
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return GIT_SUCCESS;
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}
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int git_tag_list(git_strarray *tag_names, git_repository *repo)
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int git_tag_list_match(git_strarray *tag_names, const char *pattern, git_repository *repo)
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{
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int error;
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tag_filter_data filter;
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git_vector taglist;
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assert(tag_names && repo && pattern);
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if (git_vector_init(&taglist, 8, NULL) < GIT_SUCCESS)
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return GIT_ENOMEM;
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error = git_reference_foreach(repo, GIT_REF_OID|GIT_REF_PACKED, &tag_list_cb, (void *)&taglist);
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filter.taglist = &taglist;
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filter.pattern = pattern;
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error = git_reference_foreach(repo, GIT_REF_OID|GIT_REF_PACKED, &tag_list_cb, (void *)&filter);
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if (error < GIT_SUCCESS) {
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git_vector_free(&taglist);
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return git__rethrow(error, "Failed to list tags");
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@ -390,3 +409,8 @@ int git_tag_list(git_strarray *tag_names, git_repository *repo)
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tag_names->count = taglist.length;
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return GIT_SUCCESS;
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}
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int git_tag_list(git_strarray *tag_names, git_repository *repo)
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{
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return git_tag_list_match(tag_names, "", repo);
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}
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@ -77,6 +77,35 @@ BEGIN_TEST(read1, "list all tag names from the repository")
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git_repository_free(repo);
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END_TEST
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static int ensure_tag_pattern_match(git_repository *repo, const char *pattern, const size_t expected_matches)
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{
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git_strarray tag_list;
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int error = GIT_SUCCESS;
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if ((error = git_tag_list_match(&tag_list, pattern, repo)) < GIT_SUCCESS)
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goto exit;
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if (tag_list.count != expected_matches)
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error = GIT_ERROR;
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exit:
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git_strarray_free(&tag_list);
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return error;
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}
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BEGIN_TEST(read2, "list all tag names from the repository matching a specified pattern")
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git_repository *repo;
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must_pass(git_repository_open(&repo, REPOSITORY_FOLDER));
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must_pass(ensure_tag_pattern_match(repo, "", 3));
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must_pass(ensure_tag_pattern_match(repo, "*", 3));
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must_pass(ensure_tag_pattern_match(repo, "t*", 1));
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must_pass(ensure_tag_pattern_match(repo, "*b", 2));
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must_pass(ensure_tag_pattern_match(repo, "e", 0));
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must_pass(ensure_tag_pattern_match(repo, "e90810b", 1));
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must_pass(ensure_tag_pattern_match(repo, "e90810[ab]", 1));
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git_repository_free(repo);
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END_TEST
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#define TAGGER_NAME "Vicent Marti"
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#define TAGGER_EMAIL "vicent@github.com"
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@ -222,6 +251,8 @@ END_TEST
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BEGIN_SUITE(tag)
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ADD_TEST(read0);
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ADD_TEST(read1);
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ADD_TEST(read2);
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ADD_TEST(write0);
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ADD_TEST(write2);
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ADD_TEST(write3);
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