diff options
Diffstat (limited to 'branch.c')
| -rw-r--r-- | branch.c | 130 |
1 files changed, 98 insertions, 32 deletions
@@ -74,25 +74,33 @@ void install_branch_config(int flag, const char *local, const char *origin, cons strbuf_addf(&key, "branch.%s.rebase", local); git_config_set(key.buf, "true"); } + strbuf_release(&key); if (flag & BRANCH_CONFIG_VERBOSE) { - strbuf_reset(&key); - - strbuf_addstr(&key, origin ? "remote" : "local"); - - /* Are we tracking a proper "branch"? */ - if (remote_is_branch) { - strbuf_addf(&key, " branch %s", shortname); - if (origin) - strbuf_addf(&key, " from %s", origin); - } + if (remote_is_branch && origin) + printf(rebasing ? + "Branch %s set up to track remote branch %s from %s by rebasing.\n" : + "Branch %s set up to track remote branch %s from %s.\n", + local, shortname, origin); + else if (remote_is_branch && !origin) + printf(rebasing ? + "Branch %s set up to track local branch %s by rebasing.\n" : + "Branch %s set up to track local branch %s.\n", + local, shortname); + else if (!remote_is_branch && origin) + printf(rebasing ? + "Branch %s set up to track remote ref %s by rebasing.\n" : + "Branch %s set up to track remote ref %s.\n", + local, remote); + else if (!remote_is_branch && !origin) + printf(rebasing ? + "Branch %s set up to track local ref %s by rebasing.\n" : + "Branch %s set up to track local ref %s.\n", + local, remote); else - strbuf_addf(&key, " ref %s", remote); - printf("Branch %s set up to track %s%s.\n", - local, key.buf, - rebasing ? " by rebasing" : ""); + die("BUG: impossible combination of %d and %p", + remote_is_branch, origin); } - strbuf_release(&key); } /* @@ -101,9 +109,10 @@ void install_branch_config(int flag, const char *local, const char *origin, cons * config. */ static int setup_tracking(const char *new_ref, const char *orig_ref, - enum branch_track track) + enum branch_track track, int quiet) { struct tracking tracking; + int config_flags = quiet ? 0 : BRANCH_CONFIG_VERBOSE; if (strlen(new_ref) > 1024 - 7 - 7 - 1) return error("Tracking not set up: name too long: %s", @@ -128,16 +137,70 @@ static int setup_tracking(const char *new_ref, const char *orig_ref, return error("Not tracking: ambiguous information for ref %s", orig_ref); - install_branch_config(BRANCH_CONFIG_VERBOSE, new_ref, tracking.remote, + install_branch_config(config_flags, new_ref, tracking.remote, tracking.src ? tracking.src : orig_ref); free(tracking.src); return 0; } +struct branch_desc_cb { + const char *config_name; + const char *value; +}; + +static int read_branch_desc_cb(const char *var, const char *value, void *cb) +{ + struct branch_desc_cb *desc = cb; + if (strcmp(desc->config_name, var)) + return 0; + free((char *)desc->value); + return git_config_string(&desc->value, var, value); +} + +int read_branch_desc(struct strbuf *buf, const char *branch_name) +{ + struct branch_desc_cb cb; + struct strbuf name = STRBUF_INIT; + strbuf_addf(&name, "branch.%s.description", branch_name); + cb.config_name = name.buf; + cb.value = NULL; + if (git_config(read_branch_desc_cb, &cb) < 0) { + strbuf_release(&name); + return -1; + } + if (cb.value) + strbuf_addstr(buf, cb.value); + strbuf_release(&name); + return 0; +} + +int validate_new_branchname(const char *name, struct strbuf *ref, + int force, int attr_only) +{ + if (strbuf_check_branch_ref(ref, name)) + die("'%s' is not a valid branch name.", name); + + if (!ref_exists(ref->buf)) + return 0; + else if (!force && !attr_only) + die("A branch named '%s' already exists.", ref->buf + strlen("refs/heads/")); + + if (!attr_only) { + const char *head; + unsigned char sha1[20]; + + head = resolve_ref_unsafe("HEAD", sha1, 0, NULL); + if (!is_bare_repository() && head && !strcmp(head, ref->buf)) + die("Cannot force update the current branch."); + } + return 1; +} + void create_branch(const char *head, const char *name, const char *start_name, - int force, int reflog, enum branch_track track) + int force, int reflog, int clobber_head, + int quiet, enum branch_track track) { struct ref_lock *lock = NULL; struct commit *commit; @@ -151,17 +214,13 @@ void create_branch(const char *head, if (track == BRANCH_TRACK_EXPLICIT || track == BRANCH_TRACK_OVERRIDE) explicit_tracking = 1; - if (strbuf_check_branch_ref(&ref, name)) - die("'%s' is not a valid branch name.", name); - - if (resolve_ref(ref.buf, sha1, 1, NULL)) { - if (!force && track == BRANCH_TRACK_OVERRIDE) + if (validate_new_branchname(name, &ref, force, + track == BRANCH_TRACK_OVERRIDE || + clobber_head)) { + if (!force) dont_change_ref = 1; - else if (!force) - die("A branch named '%s' already exists.", name); - else if (!is_bare_repository() && !strcmp(head, name)) - die("Cannot force update the current branch."); - forcing = 1; + else + forcing = 1; } real_ref = NULL; @@ -175,9 +234,14 @@ void create_branch(const char *head, die("Cannot setup tracking information; starting point is not a branch."); break; case 1: - /* Unique completion -- good, only if it is a real ref */ - if (explicit_tracking && !strcmp(real_ref, "HEAD")) - die("Cannot setup tracking information; starting point is not a branch."); + /* Unique completion -- good, only if it is a real branch */ + if (prefixcmp(real_ref, "refs/heads/") && + prefixcmp(real_ref, "refs/remotes/")) { + if (explicit_tracking) + die("Cannot setup tracking information; starting point is not a branch."); + else + real_ref = NULL; + } break; default: die("Ambiguous object name: '%s'.", start_name); @@ -205,7 +269,7 @@ void create_branch(const char *head, start_name); if (real_ref && track) - setup_tracking(name, real_ref, track); + setup_tracking(ref.buf+11, real_ref, track, quiet); if (!dont_change_ref) if (write_ref_sha1(lock, sha1, msg) < 0) @@ -217,6 +281,8 @@ void create_branch(const char *head, void remove_branch_state(void) { + unlink(git_path("CHERRY_PICK_HEAD")); + unlink(git_path("REVERT_HEAD")); unlink(git_path("MERGE_HEAD")); unlink(git_path("MERGE_RR")); unlink(git_path("MERGE_MSG")); |