#include "builtin.h"
static const char builtin_branch_usage[] =
-"git-branch (-d | -D) <branchname> | [-l] [-f] <branchname> [<start-point>] | [-r] | [-a]";
+ "git-branch (-d | -D) <branchname> | [-l] [-f] <branchname> [<start-point>] | (-m | -M) [<oldbranch>] <newbranch> | [-r | -a] [-v [--abbrev=<length>]]";
static const char *head;
static void delete_branches(int argc, const char **argv, int force)
{
- struct commit *rev, *head_rev;
+ struct commit *rev, *head_rev = head_rev;
unsigned char sha1[20];
char *name;
int i;
- head_rev = lookup_commit_reference(head_sha1);
+ if (!force) {
+ head_rev = lookup_commit_reference(head_sha1);
+ if (!head_rev)
+ die("Couldn't look up commit object for HEAD");
+ }
for (i = 0; i < argc; i++) {
if (!strcmp(head, argv[i]))
die("Cannot delete the branch you are currently on.");
die("Branch '%s' not found.", argv[i]);
rev = lookup_commit_reference(sha1);
- if (!rev || !head_rev)
- die("Couldn't look up commit objects.");
+ if (!rev)
+ die("Couldn't look up commit object for '%s'", name);
/* This checks whether the merge bases of branch and
* HEAD contains branch -- which means that the HEAD
struct ref_item {
char *name;
unsigned int kind;
+ unsigned char sha1[20];
};
struct ref_list {
- int index, alloc;
+ int index, alloc, maxwidth;
struct ref_item *list;
int kinds;
};
struct ref_list *ref_list = (struct ref_list*)(cb_data);
struct ref_item *newitem;
int kind = REF_UNKNOWN_TYPE;
+ int len;
/* Detect kind */
if (!strncmp(refname, "refs/heads/", 11)) {
newitem = &(ref_list->list[ref_list->index++]);
newitem->name = xstrdup(refname);
newitem->kind = kind;
+ hashcpy(newitem->sha1, sha1);
+ len = strlen(newitem->name);
+ if (len > ref_list->maxwidth)
+ ref_list->maxwidth = len;
return 0;
}
return strcmp(c1->name, c2->name);
}
-static void print_ref_list(int kinds)
+static void print_ref_info(const unsigned char *sha1, int abbrev)
+{
+ struct commit *commit;
+ char subject[256];
+
+
+ commit = lookup_commit(sha1);
+ if (commit && !parse_commit(commit))
+ pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
+ subject, sizeof(subject), 0,
+ NULL, NULL, 0);
+ else
+ strcpy(subject, " **** invalid ref ****");
+
+ printf(" %s %s\n", find_unique_abbrev(sha1, abbrev), subject);
+}
+
+static void print_ref_list(int kinds, int verbose, int abbrev)
{
int i;
char c;
!strcmp(ref_list.list[i].name, head))
c = '*';
- printf("%c %s\n", c, ref_list.list[i].name);
+ if (verbose) {
+ printf("%c %-*s", c, ref_list.maxwidth,
+ ref_list.list[i].name);
+ print_ref_info(ref_list.list[i].sha1, abbrev);
+ }
+ else
+ printf("%c %s\n", c, ref_list.list[i].name);
}
free_ref_list(&ref_list);
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];
+ 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);
+
+ if (rename_ref(oldref, newref))
+ 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;
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;
reflog = 1;
continue;
}
+ if (!strncmp(arg, "--abbrev=", 9)) {
+ abbrev = atoi(arg+9);
+ continue;
+ }
+ if (!strcmp(arg, "-v")) {
+ verbose = 1;
+ continue;
+ }
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.");
if (delete)
delete_branches(argc - i, argv + i, force_delete);
else if (i == argc)
- print_ref_list(kinds);
+ 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)