diff options
Diffstat (limited to 'builtin-branch.c')
| -rw-r--r-- | builtin-branch.c | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/builtin-branch.c b/builtin-branch.c index d1c243d..560309c 100644 --- a/builtin-branch.c +++ b/builtin-branch.c @@ -12,7 +12,7 @@ #include "builtin.h" static const char builtin_branch_usage[] = -"git-branch (-d | -D) <branchname> | [-l] [-f] <branchname> [<start-point>] | [-r | -a] [-v] [--abbrev=<length>] "; + "git-branch (-d | -D) <branchname> | [-l] [-f] <branchname> [<start-point>] | (-m | -M) [<oldbranch>] <newbranch> | [-r | -a] [-v [--abbrev=<length>]]"; static const char *head; @@ -319,14 +319,46 @@ static void create_branch(const char *name, const char *start, die("Failed to write ref: %s.", strerror(errno)); } +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 (snprintf(oldref, sizeof(oldref), "refs/heads/%s", oldname) > sizeof(oldref)) + die("Old branchname too long"); + + if (check_ref_format(oldref)) + die("Invalid branch name: %s", oldref); + + if (snprintf(newref, sizeof(newref), "refs/heads/%s", newname) > sizeof(newref)) + die("New branchname too long"); + + if (check_ref_format(newref)) + die("Invalid branch name: %s", newref); + + if (resolve_ref(newref, sha1, 1, NULL) && !force) + die("A branch named '%s' already exists.", newname); + + snprintf(logmsg, sizeof(logmsg), "Branch: renamed %s to %s", + oldref, newref); + + if (rename_ref(oldref, newref, logmsg)) + die("Branch rename failed"); + + if (!strcmp(oldname, head) && create_symref("HEAD", newref)) + die("Branch renamed to %s, but HEAD is not updated!", newname); +} + 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 reflog = 0; int kinds = REF_LOCAL_BRANCH; int i; + setup_ident(); git_config(git_branch_config); for (i = 1; i < argc; i++) { @@ -351,6 +383,15 @@ int cmd_branch(int argc, const char **argv, const char *prefix) force_create = 1; continue; } + if (!strcmp(arg, "-m")) { + rename = 1; + continue; + } + if (!strcmp(arg, "-M")) { + rename = 1; + force_rename = 1; + continue; + } if (!strcmp(arg, "-r")) { kinds = REF_REMOTE_BRANCH; continue; @@ -382,6 +423,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix) usage(builtin_branch_usage); } + if ((delete && rename) || (delete && force_create) || + (rename && force_create)) + usage(builtin_branch_usage); + head = xstrdup(resolve_ref("HEAD", head_sha1, 0, NULL)); if (!head) die("Failed to resolve HEAD as a valid ref."); @@ -393,6 +438,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix) delete_branches(argc - i, argv + i, force_delete); else if (i == argc) print_ref_list(kinds, 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); else if (i == argc - 2) |