| /* |
| * Copyright (C) the libgit2 contributors. All rights reserved. |
| * |
| * This file is part of libgit2, distributed under the GNU GPL v2 with |
| * a Linking Exception. For full terms see the included COPYING file. |
| */ |
| |
| #include "common.h" |
| #include "commit.h" |
| #include "tag.h" |
| #include "signature.h" |
| #include "message.h" |
| #include "git2/object.h" |
| #include "git2/repository.h" |
| #include "git2/signature.h" |
| #include "git2/odb_backend.h" |
| |
| void git_tag__free(void *_tag) |
| { |
| git_tag *tag = _tag; |
| git_signature_free(tag->tagger); |
| git__free(tag->message); |
| git__free(tag->tag_name); |
| git__free(tag); |
| } |
| |
| int git_tag_target(git_object **target, const git_tag *t) |
| { |
| assert(t); |
| return git_object_lookup(target, t->object.repo, &t->target, t->type); |
| } |
| |
| const git_oid *git_tag_target_id(const git_tag *t) |
| { |
| assert(t); |
| return &t->target; |
| } |
| |
| git_otype git_tag_target_type(const git_tag *t) |
| { |
| assert(t); |
| return t->type; |
| } |
| |
| const char *git_tag_name(const git_tag *t) |
| { |
| assert(t); |
| return t->tag_name; |
| } |
| |
| const git_signature *git_tag_tagger(const git_tag *t) |
| { |
| return t->tagger; |
| } |
| |
| const char *git_tag_message(const git_tag *t) |
| { |
| assert(t); |
| return t->message; |
| } |
| |
| static int tag_parse(git_tag *tag, const char *buf, const char *buf_end) |
| { |
| int error = 0; |
| const char *body = NULL; |
| git_object_parse_t parser[] = { |
| { "object", 6, GIT_PARSE_OID, { .id = &tag->target } }, |
| { "type", 4, GIT_PARSE_OTYPE, { .otype = &tag->type } }, |
| { NULL, 0, GIT_PARSE_MODE_OPTIONAL }, |
| { "tag", 3, GIT_PARSE_TO_EOL, { .text = &tag->tag_name } }, |
| { "tagger", 6, GIT_PARSE_SIGNATURE, { .sig = &tag->tagger } }, |
| { NULL, 0, GIT_PARSE_BODY_OPTIONAL, { .body = &body } }, |
| }; |
| |
| error = git_object__parse_lines(GIT_OBJ_TAG, parser, buf, buf_end); |
| |
| if (body != NULL && body < buf_end) { |
| tag->message = git__strndup(body, buf_end - body); |
| GITERR_CHECK_ALLOC(tag->message); |
| } |
| |
| return error; |
| } |
| |
| int git_tag__parse(void *tag, git_odb_object *odb_obj) |
| { |
| const char *buffer = git_odb_object_data(odb_obj); |
| const char *buffer_end = buffer + git_odb_object_size(odb_obj); |
| return tag_parse(tag, buffer, buffer_end); |
| } |
| |
| static int retrieve_tag_reference( |
| git_reference **tag_reference_out, |
| git_buf *ref_name_out, |
| git_repository *repo, |
| const char *tag_name) |
| { |
| git_reference *tag_ref; |
| int error; |
| |
| *tag_reference_out = NULL; |
| |
| if (git_buf_joinpath(ref_name_out, GIT_REFS_TAGS_DIR, tag_name) < 0) |
| return -1; |
| |
| error = git_reference_lookup(&tag_ref, repo, ref_name_out->ptr); |
| if (error < 0) |
| return error; /* Be it not foundo or corrupted */ |
| |
| *tag_reference_out = tag_ref; |
| |
| return 0; |
| } |
| |
| static int retrieve_tag_reference_oid( |
| git_oid *oid, |
| git_buf *ref_name_out, |
| git_repository *repo, |
| const char *tag_name) |
| { |
| if (git_buf_joinpath(ref_name_out, GIT_REFS_TAGS_DIR, tag_name) < 0) |
| return -1; |
| |
| return git_reference_name_to_id(oid, repo, ref_name_out->ptr); |
| } |
| |
| static int write_tag_annotation( |
| git_oid *oid, |
| git_repository *repo, |
| const char *tag_name, |
| const git_object *target, |
| const git_signature *tagger, |
| const char *message) |
| { |
| git_buf tag = GIT_BUF_INIT; |
| git_odb *odb; |
| |
| git_oid__writebuf(&tag, "object ", git_object_id(target)); |
| git_buf_printf(&tag, "type %s\n", git_object_type2string(git_object_type(target))); |
| git_buf_printf(&tag, "tag %s\n", tag_name); |
| git_signature__writebuf(&tag, "tagger ", tagger); |
| git_buf_putc(&tag, '\n'); |
| |
| if (git_buf_puts(&tag, message) < 0) |
| goto on_error; |
| |
| if (git_repository_odb__weakptr(&odb, repo) < 0) |
| goto on_error; |
| |
| if (git_odb_write(oid, odb, tag.ptr, tag.size, GIT_OBJ_TAG) < 0) |
| goto on_error; |
| |
| git_buf_free(&tag); |
| return 0; |
| |
| on_error: |
| git_buf_free(&tag); |
| giterr_set(GITERR_OBJECT, "Failed to create tag annotation."); |
| return -1; |
| } |
| |
| static int git_tag_create__internal( |
| git_oid *oid, |
| git_repository *repo, |
| const char *tag_name, |
| const git_object *target, |
| const git_signature *tagger, |
| const char *message, |
| int allow_ref_overwrite, |
| int create_tag_annotation) |
| { |
| git_reference *new_ref = NULL; |
| git_buf ref_name = GIT_BUF_INIT; |
| |
| int error; |
| |
| assert(repo && tag_name && target); |
| assert(!create_tag_annotation || (tagger && message)); |
| |
| if (git_object_owner(target) != repo) { |
| giterr_set(GITERR_INVALID, "The given target does not belong to this repository"); |
| return -1; |
| } |
| |
| error = retrieve_tag_reference_oid(oid, &ref_name, repo, tag_name); |
| if (error < 0 && error != GIT_ENOTFOUND) |
| goto cleanup; |
| |
| /** Ensure the tag name doesn't conflict with an already existing |
| * reference unless overwriting has explictly been requested **/ |
| if (error == 0 && !allow_ref_overwrite) { |
| git_buf_free(&ref_name); |
| giterr_set(GITERR_TAG, "Tag already exists"); |
| return GIT_EEXISTS; |
| } |
| |
| if (create_tag_annotation) { |
| if (write_tag_annotation(oid, repo, tag_name, target, tagger, message) < 0) |
| return -1; |
| } else |
| git_oid_cpy(oid, git_object_id(target)); |
| |
| error = git_reference_create(&new_ref, repo, ref_name.ptr, oid, allow_ref_overwrite, NULL, NULL); |
| |
| cleanup: |
| git_reference_free(new_ref); |
| git_buf_free(&ref_name); |
| return error; |
| } |
| |
| int git_tag_create( |
| git_oid *oid, |
| git_repository *repo, |
| const char *tag_name, |
| const git_object *target, |
| const git_signature *tagger, |
| const char *message, |
| int allow_ref_overwrite) |
| { |
| return git_tag_create__internal(oid, repo, tag_name, target, tagger, message, allow_ref_overwrite, 1); |
| } |
| |
| int git_tag_annotation_create( |
| git_oid *oid, |
| git_repository *repo, |
| const char *tag_name, |
| const git_object *target, |
| const git_signature *tagger, |
| const char *message) |
| { |
| assert(oid && repo && tag_name && target && tagger && message); |
| |
| return write_tag_annotation(oid, repo, tag_name, target, tagger, message); |
| } |
| |
| int git_tag_create_lightweight( |
| git_oid *oid, |
| git_repository *repo, |
| const char *tag_name, |
| const git_object *target, |
| int allow_ref_overwrite) |
| { |
| return git_tag_create__internal(oid, repo, tag_name, target, NULL, NULL, allow_ref_overwrite, 0); |
| } |
| |
| int git_tag_create_frombuffer(git_oid *oid, git_repository *repo, const char *buffer, int allow_ref_overwrite) |
| { |
| git_tag tag; |
| int error; |
| git_odb *odb; |
| git_odb_stream *stream; |
| git_odb_object *target_obj = NULL; |
| git_buf ref_name = GIT_BUF_INIT; |
| size_t buflen; |
| |
| assert(oid && buffer); |
| |
| memset(&tag, 0, sizeof(tag)); |
| buflen = strlen(buffer); |
| |
| /* validate the buffer */ |
| if ((error = tag_parse(&tag, buffer, buffer + buflen)) < 0) |
| goto cleanup; |
| |
| /* validate the target */ |
| if ((error = git_repository_odb__weakptr(&odb, repo)) < 0 || |
| (error = git_odb_read(&target_obj, odb, &tag.target)) < 0) |
| goto cleanup; |
| |
| if (tag.type != target_obj->cached.type) { |
| giterr_set(GITERR_TAG, "The type for the given target is invalid"); |
| error = -1; |
| goto cleanup; |
| } |
| |
| error = retrieve_tag_reference_oid(oid, &ref_name, repo, tag.tag_name); |
| if (error < 0 && error != GIT_ENOTFOUND) |
| goto cleanup; |
| |
| /** Ensure the tag name doesn't conflict with an already existing |
| * reference unless overwriting has explictly been requested **/ |
| if (!error && !allow_ref_overwrite) { |
| giterr_set(GITERR_TAG, "Tag already exists"); |
| error = GIT_EEXISTS; |
| goto cleanup; |
| } |
| |
| /* write the buffer */ |
| if (!(error = git_odb_open_wstream(&stream, odb, buflen, GIT_OBJ_TAG))) { |
| |
| if (!(error = git_odb_stream_write(stream, buffer, buflen))) |
| error = git_odb_stream_finalize_write(oid, stream); |
| |
| git_odb_stream_free(stream); |
| } |
| |
| /* update the reference */ |
| if (!error) { |
| git_reference *new_ref = NULL; |
| |
| error = git_reference_create( |
| &new_ref, repo, ref_name.ptr, oid, |
| allow_ref_overwrite, NULL, NULL); |
| |
| git_reference_free(new_ref); |
| } |
| |
| cleanup: |
| git_signature_free(tag.tagger); |
| git__free(tag.tag_name); |
| git__free(tag.message); |
| git_odb_object_free(target_obj); |
| git_buf_free(&ref_name); |
| |
| return error; |
| } |
| |
| int git_tag_delete(git_repository *repo, const char *tag_name) |
| { |
| git_reference *tag_ref; |
| git_buf ref_name = GIT_BUF_INIT; |
| int error; |
| |
| error = retrieve_tag_reference(&tag_ref, &ref_name, repo, tag_name); |
| |
| git_buf_free(&ref_name); |
| |
| if (!error) |
| error = git_reference_delete(tag_ref); |
| |
| git_reference_free(tag_ref); |
| |
| return error; |
| } |
| |
| typedef struct { |
| git_repository *repo; |
| git_tag_foreach_cb cb; |
| void *cb_data; |
| } tag_cb_data; |
| |
| static int tags_cb(const char *ref, void *data) |
| { |
| int error; |
| git_oid oid; |
| tag_cb_data *d = (tag_cb_data *)data; |
| |
| if (git__prefixcmp(ref, GIT_REFS_TAGS_DIR) != 0) |
| return 0; /* no tag */ |
| |
| if (!(error = git_reference_name_to_id(&oid, d->repo, ref))) { |
| if ((error = d->cb(ref, &oid, d->cb_data)) != 0) |
| giterr_set_after_callback_function(error, "git_tag_foreach"); |
| } |
| |
| return error; |
| } |
| |
| int git_tag_foreach(git_repository *repo, git_tag_foreach_cb cb, void *cb_data) |
| { |
| tag_cb_data data; |
| |
| assert(repo && cb); |
| |
| data.cb = cb; |
| data.cb_data = cb_data; |
| data.repo = repo; |
| |
| return git_reference_foreach_name(repo, &tags_cb, &data); |
| } |
| |
| typedef struct { |
| git_vector *taglist; |
| const char *pattern; |
| } tag_filter_data; |
| |
| #define GIT_REFS_TAGS_DIR_LEN strlen(GIT_REFS_TAGS_DIR) |
| |
| static int tag_list_cb(const char *tag_name, git_oid *oid, void *data) |
| { |
| tag_filter_data *filter = (tag_filter_data *)data; |
| GIT_UNUSED(oid); |
| |
| if (!*filter->pattern || |
| p_fnmatch(filter->pattern, tag_name + GIT_REFS_TAGS_DIR_LEN, 0) == 0) |
| { |
| char *matched = git__strdup(tag_name + GIT_REFS_TAGS_DIR_LEN); |
| GITERR_CHECK_ALLOC(matched); |
| |
| return git_vector_insert(filter->taglist, matched); |
| } |
| |
| return 0; |
| } |
| |
| int git_tag_list_match(git_strarray *tag_names, const char *pattern, git_repository *repo) |
| { |
| int error; |
| tag_filter_data filter; |
| git_vector taglist; |
| |
| assert(tag_names && repo && pattern); |
| |
| if ((error = git_vector_init(&taglist, 8, NULL)) < 0) |
| return error; |
| |
| filter.taglist = &taglist; |
| filter.pattern = pattern; |
| |
| error = git_tag_foreach(repo, &tag_list_cb, (void *)&filter); |
| |
| if (error < 0) |
| git_vector_free(&taglist); |
| |
| tag_names->strings = |
| (char **)git_vector_detach(&tag_names->count, NULL, &taglist); |
| |
| return 0; |
| } |
| |
| int git_tag_list(git_strarray *tag_names, git_repository *repo) |
| { |
| return git_tag_list_match(tag_names, "", repo); |
| } |
| |
| int git_tag_peel(git_object **tag_target, const git_tag *tag) |
| { |
| return git_object_peel(tag_target, (const git_object *)tag, GIT_OBJ_ANY); |
| } |