diff options
Diffstat (limited to 'src/submodule.c')
| -rw-r--r-- | src/submodule.c | 136 |
1 files changed, 83 insertions, 53 deletions
diff --git a/src/submodule.c b/src/submodule.c index 913c97a87..24f250aa1 100644 --- a/src/submodule.c +++ b/src/submodule.c @@ -91,8 +91,10 @@ static int submodule_cache_init(git_repository *repo, int refresh); static void submodule_cache_free(git_submodule_cache *cache); static git_config_backend *open_gitmodules(git_submodule_cache *, int gitmod); -static int lookup_head_remote_key(git_buf *key, git_repository *repo); -static int lookup_head_remote(git_buf *url, git_repository *repo); +static int get_url_base(git_buf *url, git_repository *repo); +static int lookup_default_remote(git_remote **remote, git_repository *repo); +static int lookup_head_remote_key(git_buf *remote_key, git_repository *repo); +static int lookup_head_remote(git_remote **remote, git_repository *repo); static int submodule_get(git_submodule **, git_submodule_cache *, const char *, const char *); static int submodule_load_from_config(const git_config_entry *, void *); static int submodule_load_from_wd_lite(git_submodule *); @@ -644,7 +646,7 @@ int git_submodule_resolve_url(git_buf *out, git_repository *repo, const char *ur assert(url); if (git_path_is_relative(url)) { - if (!(error = lookup_head_remote(out, repo))) + if (!(error = get_url_base(out, repo))) error = git_path_apply_relative(out, url); } else if (strchr(url, ':') != NULL || url[0] == '/') { error = git_buf_sets(out, url); @@ -1795,81 +1797,109 @@ static int submodule_cache_init(git_repository *repo, int cache_refresh) return error; } -static int lookup_head_remote_key(git_buf *key, git_repository *repo) +static int get_url_base(git_buf *url, git_repository *repo) { int error; - git_config *cfg; - git_reference *head = NULL, *remote = NULL; - const char *tgt, *scan; + git_remote *remote; + error = lookup_default_remote(&remote, repo); + const char *url_ptr; + + assert(url && repo); + + if (!error) { + url_ptr = git_remote_url(remote); + } else if (error == GIT_ENOTFOUND) { + /* if repository does not have a default remote, use workdir instead */ + giterr_clear(); + error = 0; + url_ptr = git_repository_workdir(repo); + } + + if (error < 0) + goto cleanup; + + error = git_buf_sets(url, url_ptr); - /* 1. resolve HEAD -> refs/heads/BRANCH - * 2. lookup config branch.BRANCH.remote -> ORIGIN - * 3. return remote.ORIGIN.url - */ +cleanup: + git_remote_free(remote); - git_buf_clear(key); + return error; +} - if ((error = git_repository_config__weakptr(&cfg, repo)) < 0) - return error; +/** + * Lookup the remote that is considered the default remote in the current state + */ +static int lookup_default_remote(git_remote **remote, git_repository *repo) +{ + int error; + error = lookup_head_remote(remote, repo); - if (git_reference_lookup(&head, repo, GIT_HEAD_FILE) < 0) { - giterr_set(GITERR_SUBMODULE, - "Cannot resolve relative URL when HEAD cannot be resolved"); - return GIT_ENOTFOUND; + assert(remote && repo); + + // if that failed, use 'origin' instead + if (error == GIT_ENOTFOUND) { + error = git_remote_load(remote, repo, "origin"); } - if (git_reference_type(head) != GIT_REF_SYMBOLIC) { + if (error == GIT_ENOTFOUND) { giterr_set(GITERR_SUBMODULE, - "Cannot resolve relative URL when HEAD is not symbolic"); - error = GIT_ENOTFOUND; - goto cleanup; + "Neither HEAD points to a local tracking branch, nor does origin exist"); } - if ((error = git_branch_upstream(&remote, head)) < 0) - goto cleanup; + return error; +} - /* remote should refer to something like refs/remotes/ORIGIN/BRANCH */ +/** + * Lookup name of remote of the local tracking branch HEAD points to + */ +static int lookup_head_remote_key(git_buf *remote_name, git_repository *repo) +{ + int error; + git_reference *head = NULL; + git_buf upstream_name = GIT_BUF_INIT; - if (git_reference_type(remote) != GIT_REF_SYMBOLIC || - git__prefixcmp( - git_reference_symbolic_target(remote), GIT_REFS_REMOTES_DIR) != 0) - { - giterr_set(GITERR_SUBMODULE, - "Cannot resolve relative URL when HEAD is not symbolic"); - error = GIT_ENOTFOUND; - goto cleanup; - } + /* lookup and dereference HEAD */ + if ((error = git_repository_head(&head, repo) < 0)) + goto cleanup; - scan = tgt = git_reference_symbolic_target(remote) + - strlen(GIT_REFS_REMOTES_DIR); - while (*scan && (*scan != '/' || (scan > tgt && scan[-1] != '\\'))) - scan++; /* find non-escaped slash to end ORIGIN name */ + /* lookup remote tracking branch of HEAD */ + if ((error = git_branch_upstream_name(&upstream_name, repo, git_reference_name(head))) < 0) + goto cleanup; - error = git_buf_printf(key, "remote.%.*s.url", (int)(scan - tgt), tgt); + /* lookup remote of remote tracking branch */ + if ((error = git_branch_remote_name(remote_name, repo, upstream_name.ptr)) < 0) + goto cleanup; cleanup: - if (error < 0) - git_buf_clear(key); - - git_reference_free(head); - git_reference_free(remote); + git_buf_free(&upstream_name); + if (head) + git_reference_free(head); return error; } -static int lookup_head_remote(git_buf *url, git_repository *repo) +/** + * Lookup the remote of the local tracking branch HEAD points to + */ +static int lookup_head_remote(git_remote **remote, git_repository *repo) { int error; - git_config *cfg; - const char *tgt; - git_buf key = GIT_BUF_INIT; + git_buf remote_name = GIT_BUF_INIT; - if (!(error = lookup_head_remote_key(&key, repo)) && - !(error = git_repository_config__weakptr(&cfg, repo)) && - !(error = git_config_get_string(&tgt, cfg, key.ptr))) - error = git_buf_sets(url, tgt); + assert(remote && repo); + + /* should be NULL in case of error */ + *remote = NULL; + + /* lookup remote of remote tracking branch name */ + if ((error = lookup_head_remote_key(&remote_name, repo)) < 0) + goto cleanup; + + error = git_remote_load(remote, repo, remote_name.ptr); + +cleanup: + git_buf_free(&remote_name); - git_buf_free(&key); return error; } |