diff options
Diffstat (limited to 'builtin-branch.c')
| -rw-r--r-- | builtin-branch.c | 55 |
1 files changed, 41 insertions, 14 deletions
diff --git a/builtin-branch.c b/builtin-branch.c index d3df5a57f..c760e188e 100644 --- a/builtin-branch.c +++ b/builtin-branch.c @@ -275,7 +275,7 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, } } -static void print_ref_list(int kinds, int verbose, int abbrev) +static void print_ref_list(int kinds, int detached, int verbose, int abbrev) { int i; struct ref_list ref_list; @@ -286,8 +286,20 @@ static void print_ref_list(int kinds, int verbose, int abbrev) qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp); + detached = (detached && (kinds & REF_LOCAL_BRANCH)); + if (detached) { + struct ref_item item; + item.name = "(no branch)"; + item.kind = REF_LOCAL_BRANCH; + hashcpy(item.sha1, head_sha1); + if (strlen(item.name) > ref_list.maxwidth) + ref_list.maxwidth = strlen(item.name); + print_ref_item(&item, ref_list.maxwidth, verbose, abbrev, 1); + } + for (i = 0; i < ref_list.index; i++) { - int current = (ref_list.list[i].kind == REF_LOCAL_BRANCH) && + int current = !detached && + (ref_list.list[i].kind == REF_LOCAL_BRANCH) && !strcmp(ref_list.list[i].name, head); print_ref_item(&ref_list.list[i], ref_list.maxwidth, verbose, abbrev, current); @@ -296,7 +308,8 @@ static void print_ref_list(int kinds, int verbose, int abbrev) free_ref_list(&ref_list); } -static void create_branch(const char *name, const char *start, +static void create_branch(const char *name, const char *start_name, + unsigned char *start_sha1, int force, int reflog) { struct ref_lock *lock; @@ -315,9 +328,14 @@ static void create_branch(const char *name, const char *start, die("Cannot force update the current branch."); } - if (get_sha1(start, sha1) || - (commit = lookup_commit_reference(sha1)) == NULL) - die("Not a valid branch point: '%s'.", start); + if (start_sha1) + /* detached HEAD */ + hashcpy(sha1, start_sha1); + else if (get_sha1(start_name, sha1)) + die("Not a valid object name: '%s'.", start_name); + + if ((commit = lookup_commit_reference(sha1)) == NULL) + die("Not a valid branch point: '%s'.", start_name); hashcpy(sha1, commit->object.sha1); lock = lock_any_ref_for_update(ref, NULL); @@ -326,7 +344,8 @@ static void create_branch(const char *name, const char *start, if (reflog) { log_all_ref_updates = 1; - snprintf(msg, sizeof msg, "branch: Created from %s", start); + snprintf(msg, sizeof msg, "branch: Created from %s", + start_name); } if (write_ref_sha1(lock, sha1, msg) < 0) @@ -338,6 +357,9 @@ static void rename_branch(const char *oldname, const char *newname, int force) char oldref[PATH_MAX], newref[PATH_MAX], logmsg[PATH_MAX*2 + 100]; unsigned char sha1[20]; + if (!oldname) + die("cannot rename the curren branch while not on any."); + if (snprintf(oldref, sizeof(oldref), "refs/heads/%s", oldname) > sizeof(oldref)) die("Old branchname too long"); @@ -367,7 +389,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix) { int delete = 0, force_delete = 0, force_create = 0; int rename = 0, force_rename = 0; - int verbose = 0, abbrev = DEFAULT_ABBREV; + int verbose = 0, abbrev = DEFAULT_ABBREV, detached = 0; int reflog = 0; int kinds = REF_LOCAL_BRANCH; int i; @@ -444,22 +466,27 @@ int cmd_branch(int argc, const char **argv, const char *prefix) head = xstrdup(resolve_ref("HEAD", head_sha1, 0, NULL)); if (!head) die("Failed to resolve HEAD as a valid ref."); - if (strncmp(head, "refs/heads/", 11)) - die("HEAD not found below refs/heads!"); - head += 11; + if (!strcmp(head, "HEAD")) { + detached = 1; + } + else { + if (strncmp(head, "refs/heads/", 11)) + die("HEAD not found below refs/heads!"); + head += 11; + } if (delete) return delete_branches(argc - i, argv + i, force_delete, kinds); else if (i == argc) - print_ref_list(kinds, verbose, abbrev); + print_ref_list(kinds, detached, verbose, abbrev); else if (rename && (i == argc - 1)) rename_branch(head, argv[i], force_rename); else if (rename && (i == argc - 2)) rename_branch(argv[i], argv[i + 1], force_rename); else if (i == argc - 1) - create_branch(argv[i], head, force_create, reflog); + create_branch(argv[i], head, head_sha1, force_create, reflog); else if (i == argc - 2) - create_branch(argv[i], argv[i + 1], force_create, reflog); + create_branch(argv[i], argv[i+1], NULL, force_create, reflog); else usage(builtin_branch_usage); |