diff options
Diffstat (limited to 'branch.c')
| -rw-r--r-- | branch.c | 86 |
1 files changed, 69 insertions, 17 deletions
@@ -32,6 +32,59 @@ static int find_tracked_branch(struct remote *remote, void *priv) return 0; } +static int should_setup_rebase(const char *origin) +{ + switch (autorebase) { + case AUTOREBASE_NEVER: + return 0; + case AUTOREBASE_LOCAL: + return origin == NULL; + case AUTOREBASE_REMOTE: + return origin != NULL; + case AUTOREBASE_ALWAYS: + return 1; + } + return 0; +} + +void install_branch_config(int flag, const char *local, const char *origin, const char *remote) +{ + struct strbuf key = STRBUF_INIT; + int rebasing = should_setup_rebase(origin); + + strbuf_addf(&key, "branch.%s.remote", local); + git_config_set(key.buf, origin ? origin : "."); + + strbuf_reset(&key); + strbuf_addf(&key, "branch.%s.merge", local); + git_config_set(key.buf, remote); + + if (rebasing) { + strbuf_reset(&key); + strbuf_addf(&key, "branch.%s.rebase", local); + git_config_set(key.buf, "true"); + } + + if (flag & BRANCH_CONFIG_VERBOSE) { + strbuf_reset(&key); + + strbuf_addstr(&key, origin ? "remote" : "local"); + + /* Are we tracking a proper "branch"? */ + if (!prefixcmp(remote, "refs/heads/")) { + strbuf_addf(&key, " branch %s", remote + 11); + if (origin) + strbuf_addf(&key, " from %s", origin); + } + else + strbuf_addf(&key, " ref %s", remote); + printf("Branch %s set up to track %s%s.\n", + local, key.buf, + rebasing ? " by rebasing" : ""); + } + strbuf_release(&key); +} + /* * This is called when new_ref is branched off of orig_ref, and tries * to infer the settings for branch.<new_ref>.{remote,merge} from the @@ -40,7 +93,6 @@ static int find_tracked_branch(struct remote *remote, void *priv) static int setup_tracking(const char *new_ref, const char *orig_ref, enum branch_track track) { - char key[1024]; struct tracking tracking; if (strlen(new_ref) > 1024 - 7 - 7 - 1) @@ -65,14 +117,10 @@ static int setup_tracking(const char *new_ref, const char *orig_ref, return error("Not tracking: ambiguous information for ref %s", orig_ref); - sprintf(key, "branch.%s.remote", new_ref); - git_config_set(key, tracking.remote ? tracking.remote : "."); - sprintf(key, "branch.%s.merge", new_ref); - git_config_set(key, tracking.src ? tracking.src : orig_ref); - free(tracking.src); - printf("Branch %s set up to track %s branch %s.\n", new_ref, - tracking.remote ? "remote" : "local", orig_ref); + install_branch_config(BRANCH_CONFIG_VERBOSE, new_ref, tracking.remote, + tracking.src ? tracking.src : orig_ref); + free(tracking.src); return 0; } @@ -83,14 +131,14 @@ void create_branch(const char *head, struct ref_lock *lock; struct commit *commit; unsigned char sha1[20]; - char *real_ref, ref[PATH_MAX], msg[PATH_MAX + 20]; + char *real_ref, msg[PATH_MAX + 20]; + struct strbuf ref = STRBUF_INIT; int forcing = 0; - snprintf(ref, sizeof ref, "refs/heads/%s", name); - if (check_ref_format(ref)) + if (strbuf_check_branch_ref(&ref, name)) die("'%s' is not a valid branch name.", name); - if (resolve_ref(ref, sha1, 1, NULL)) { + if (resolve_ref(ref.buf, sha1, 1, NULL)) { if (!force) die("A branch named '%s' already exists.", name); else if (!is_bare_repository() && !strcmp(head, name)) @@ -109,7 +157,9 @@ void create_branch(const char *head, die("Cannot setup tracking information; starting point is not a branch."); break; case 1: - /* Unique completion -- good */ + /* Unique completion -- good, only if it is a real ref */ + if (track == BRANCH_TRACK_EXPLICIT && !strcmp(real_ref, "HEAD")) + die("Cannot setup tracking information; starting point is not a branch."); break; default: die("Ambiguous object name: '%s'.", start_name); @@ -120,9 +170,9 @@ void create_branch(const char *head, die("Not a valid branch point: '%s'.", start_name); hashcpy(sha1, commit->object.sha1); - lock = lock_any_ref_for_update(ref, NULL, 0); + lock = lock_any_ref_for_update(ref.buf, NULL, 0); if (!lock) - die("Failed to lock ref for update: %s.", strerror(errno)); + die_errno("Failed to lock ref for update"); if (reflog) log_all_ref_updates = 1; @@ -138,15 +188,17 @@ void create_branch(const char *head, setup_tracking(name, real_ref, track); if (write_ref_sha1(lock, sha1, msg) < 0) - die("Failed to write ref: %s.", strerror(errno)); + die_errno("Failed to write ref"); + strbuf_release(&ref); free(real_ref); } void remove_branch_state(void) { unlink(git_path("MERGE_HEAD")); - unlink(git_path("rr-cache/MERGE_RR")); + unlink(git_path("MERGE_RR")); unlink(git_path("MERGE_MSG")); + unlink(git_path("MERGE_MODE")); unlink(git_path("SQUASH_MSG")); } |