/*
* Builtin "git branch"
*
- * Copyright (c) 2006 Kristian Høgsberg <krh@redhat.com>
+ * Copyright (c) 2006 Kristian Høgsberg <krh@redhat.com>
* Based on git-branch.sh by Junio C Hamano.
*/
#include "refs.h"
#include "commit.h"
#include "builtin.h"
-
-static const char builtin_branch_usage[] =
- "git-branch [-r] (-d | -D) <branchname> | [--track | --no-track] [-l] [-f] <branchname> [<start-point>] | (-m | -M) [<oldbranch>] <newbranch> | [--color | --no-color] [-r | -a] [-v [--abbrev=<length> | --no-abbrev]]";
+#include "remote.h"
+#include "parse-options.h"
+
+static const char * const builtin_branch_usage[] = {
+ "git-branch [options] [-r | -a]",
+ "git-branch [options] [-l] [-f] <branchname> [<start-point>]",
+ "git-branch [options] [-r] (-d | -D) <branchname>",
+ "git-branch [options] (-m | -M) [<oldbranch>] <newbranch>",
+ NULL
+};
#define REF_UNKNOWN_TYPE 0x00
#define REF_LOCAL_BRANCH 0x01
static const char *head;
static unsigned char head_sha1[20];
-static int branch_track_remotes;
+static int branch_track = 1;
static int branch_use_color;
static char branch_colors[][COLOR_MAXLEN] = {
static int git_branch_config(const char *var, const char *value)
{
if (!strcmp(var, "color.branch")) {
- branch_use_color = git_config_colorbool(var, value);
+ branch_use_color = git_config_colorbool(var, value, -1);
return 0;
}
if (!prefixcmp(var, "color.branch.")) {
return 0;
}
if (!strcmp(var, "branch.autosetupmerge"))
- branch_track_remotes = git_config_bool(var, value);
+ branch_track = git_config_bool(var, value);
return git_default_config(var, value);
}
if (!force &&
!in_merge_bases(rev, &head_rev, 1)) {
- error("The branch '%s' is not a strict subset of "
+ error("The branch '%s' is not an ancestor of "
"your current HEAD.\n"
"If you are sure you want to delete it, "
"run 'git branch -D %s'.", argv[i], argv[i]);
struct ref_list {
int index, alloc, maxwidth;
struct ref_item *list;
+ struct commit_list *with_commit;
int kinds;
};
+static int has_commit(const unsigned char *sha1, struct commit_list *with_commit)
+{
+ struct commit *commit;
+
+ if (!with_commit)
+ return 1;
+ commit = lookup_commit_reference_gently(sha1, 1);
+ if (!commit)
+ return 0;
+ while (with_commit) {
+ struct commit *other;
+
+ other = with_commit->item;
+ with_commit = with_commit->next;
+ if (in_merge_bases(other, &commit, 1))
+ return 1;
+ }
+ return 0;
+}
+
static int append_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
{
struct ref_list *ref_list = (struct ref_list*)(cb_data);
refname += 10;
}
+ /* Filter with with_commit if specified */
+ if (!has_commit(sha1, ref_list->with_commit))
+ return 0;
+
/* Don't add types the caller doesn't want */
if ((kind & ref_list->kinds) == 0)
return 0;
}
if (verbose) {
- char *subject = NULL;
- unsigned long subject_len = 0;
+ struct strbuf subject;
const char *sub = " **** invalid ref ****";
+ strbuf_init(&subject, 0);
+
commit = lookup_commit(item->sha1);
if (commit && !parse_commit(commit)) {
- pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
- &subject, &subject_len, 0,
- NULL, NULL, 0);
- sub = subject;
+ pretty_print_commit(CMIT_FMT_ONELINE, commit,
+ &subject, 0, NULL, NULL, 0, 0);
+ sub = subject.buf;
}
printf("%c %s%-*s%s %s %s\n", c, branch_get_color(color),
maxwidth, item->name,
branch_get_color(COLOR_BRANCH_RESET),
find_unique_abbrev(item->sha1, abbrev), sub);
- if (subject)
- free(subject);
+ strbuf_release(&subject);
} else {
printf("%c %s%s%s\n", c, branch_get_color(color), item->name,
branch_get_color(COLOR_BRANCH_RESET));
}
}
-static void print_ref_list(int kinds, int detached, int verbose, int abbrev)
+static void print_ref_list(int kinds, int detached, int verbose, int abbrev, struct commit_list *with_commit)
{
int i;
struct ref_list ref_list;
memset(&ref_list, 0, sizeof(ref_list));
ref_list.kinds = kinds;
+ ref_list.with_commit = with_commit;
for_each_ref(append_ref, &ref_list);
qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp);
detached = (detached && (kinds & REF_LOCAL_BRANCH));
- if (detached) {
+ if (detached && has_commit(head_sha1, with_commit)) {
struct ref_item item;
item.name = xstrdup("(no branch)");
item.kind = REF_LOCAL_BRANCH;
free_ref_list(&ref_list);
}
-static char *config_repo;
-static char *config_remote;
-static const char *start_ref;
+struct tracking {
+ struct refspec spec;
+ char *src;
+ const char *remote;
+ int matches;
+};
-static int get_remote_branch_name(const char *value)
+static int find_tracked_branch(struct remote *remote, void *priv)
{
- const char *colon;
- const char *end;
-
- if (*value == '+')
- value++;
+ struct tracking *tracking = priv;
- colon = strchr(value, ':');
- if (!colon)
- return 0;
-
- end = value + strlen(value);
-
- /*
- * Try an exact match first. I.e. handle the case where the
- * value is "$anything:refs/foo/bar/baz" and start_ref is exactly
- * "refs/foo/bar/baz". Then the name at the remote is $anything.
- */
- if (!strcmp(colon + 1, start_ref)) {
- /* Truncate the value before the colon. */
- nfasprintf(&config_repo, "%.*s", colon - value, value);
- return 1;
+ if (!remote_find_tracking(remote, &tracking->spec)) {
+ if (++tracking->matches == 1) {
+ tracking->src = tracking->spec.src;
+ tracking->remote = remote->name;
+ } else {
+ free(tracking->spec.src);
+ if (tracking->src) {
+ free(tracking->src);
+ tracking->src = NULL;
+ }
+ }
+ tracking->spec.src = NULL;
}
- /*
- * Is this a wildcard match?
- */
- if ((end - 2 <= value) || end[-2] != '/' || end[-1] != '*' ||
- (colon - 2 <= value) || colon[-2] != '/' || colon[-1] != '*')
- return 0;
-
- /*
- * Value is "refs/foo/bar/<asterisk>:refs/baz/boa/<asterisk>"
- * and start_ref begins with "refs/baz/boa/"; the name at the
- * remote is refs/foo/bar/ with the remaining part of the
- * start_ref. The length of the prefix on the RHS is (end -
- * colon - 2), including the slash immediately before the
- * asterisk.
- */
- if ((strlen(start_ref) < end - colon - 2) ||
- memcmp(start_ref, colon + 1, end - colon - 2))
- return 0; /* does not match prefix */
-
- /* Replace the asterisk with the remote branch name. */
- nfasprintf(&config_repo, "%.*s%s",
- (colon - 1) - value, value,
- start_ref + (end - colon - 2));
- return 1;
-}
-
-static int get_remote_config(const char *key, const char *value)
-{
- const char *var;
- if (prefixcmp(key, "remote."))
- return 0;
-
- var = strrchr(key, '.');
- if (var == key + 6 || strcmp(var, ".fetch"))
- return 0;
- /*
- * Ok, we are looking at key == "remote.$foo.fetch";
- */
- if (get_remote_branch_name(value))
- nfasprintf(&config_remote, "%.*s", var - (key + 7), key + 7);
-
return 0;
}
-static void set_branch_merge(const char *name, const char *config_remote,
- const char *config_repo)
+
+/*
+ * 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
+ * config.
+ */
+static int setup_tracking(const char *new_ref, const char *orig_ref)
{
char key[1024];
- if (sizeof(key) <=
- snprintf(key, sizeof(key), "branch.%s.remote", name))
- die("what a long branch name you have!");
- git_config_set(key, config_remote);
-
- /*
- * We do not have to check if we have enough space for
- * the 'merge' key, since it's shorter than the
- * previous 'remote' key, which we already checked.
- */
- snprintf(key, sizeof(key), "branch.%s.merge", name);
- git_config_set(key, config_repo);
-}
+ struct tracking tracking;
-static void set_branch_defaults(const char *name, const char *real_ref)
-{
- /*
- * name is the name of new branch under refs/heads;
- * real_ref is typically refs/remotes/$foo/$bar, where
- * $foo is the remote name (there typically are no slashes)
- * and $bar is the branch name we map from the remote
- * (it could have slashes).
- */
- start_ref = real_ref;
- git_config(get_remote_config);
- if (!config_repo && !config_remote &&
- !prefixcmp(real_ref, "refs/heads/")) {
- set_branch_merge(name, ".", real_ref);
- printf("Branch %s set up to track local branch %s.\n",
- name, real_ref);
- }
+ if (strlen(new_ref) > 1024 - 7 - 7 - 1)
+ return error("Tracking not set up: name too long: %s",
+ new_ref);
- if (config_repo && config_remote) {
- set_branch_merge(name, config_remote, config_repo);
+ memset(&tracking, 0, sizeof(tracking));
+ tracking.spec.dst = (char *)orig_ref;
+ if (for_each_remote(find_tracked_branch, &tracking) ||
+ !tracking.matches)
+ return 1;
+
+ if (tracking.matches > 1)
+ return error("Not tracking: ambiguous information for ref %s",
+ orig_ref);
+
+ if (tracking.matches == 1) {
+ 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);
+ free(tracking.src);
printf("Branch %s set up to track remote branch %s.\n",
- name, real_ref);
+ new_ref, orig_ref);
}
- if (config_repo)
- free(config_repo);
- if (config_remote)
- free(config_remote);
+ return 0;
}
static void create_branch(const char *name, const char *start_name,
automatically merges from there. So far, this is only done for
remotes registered via .git/config. */
if (real_ref && track)
- set_branch_defaults(name, real_ref);
+ setup_tracking(name, real_ref);
if (write_ref_sha1(lock, sha1, msg) < 0)
die("Failed to write ref: %s.", strerror(errno));
die("Branch is renamed, but update of config-file failed");
}
+static int opt_parse_with_commit(const struct option *opt, const char *arg, int unset)
+{
+ unsigned char sha1[20];
+ struct commit *commit;
+
+ if (!arg)
+ return -1;
+ if (get_sha1(arg, sha1))
+ die("malformed object name %s", arg);
+ commit = lookup_commit_reference(sha1);
+ if (!commit)
+ die("no such commit %s", arg);
+ commit_list_insert(commit, opt->value);
+ return 0;
+}
+
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 delete = 0, rename = 0, force_create = 0;
int verbose = 0, abbrev = DEFAULT_ABBREV, detached = 0;
int reflog = 0, track;
int kinds = REF_LOCAL_BRANCH;
- int i;
+ struct commit_list *with_commit = NULL;
+
+ struct option options[] = {
+ OPT_GROUP("Generic options"),
+ OPT__VERBOSE(&verbose),
+ OPT_BOOLEAN( 0 , "track", &track, "set up tracking mode (see git-pull(1))"),
+ OPT_BOOLEAN( 0 , "color", &branch_use_color, "use colored output"),
+ OPT_SET_INT('r', NULL, &kinds, "act on remote-tracking branches",
+ REF_REMOTE_BRANCH),
+ OPT_CALLBACK(0, "contains", &with_commit, "commit",
+ "print only branches that contain the commit",
+ opt_parse_with_commit),
+ {
+ OPTION_CALLBACK, 0, "with", &with_commit, "commit",
+ "print only branches that contain the commit",
+ PARSE_OPT_HIDDEN, opt_parse_with_commit,
+ },
+ OPT__ABBREV(&abbrev),
+
+ OPT_GROUP("Specific git-branch actions:"),
+ OPT_SET_INT('a', NULL, &kinds, "list both remote-tracking and local branches",
+ REF_REMOTE_BRANCH | REF_LOCAL_BRANCH),
+ OPT_BIT('d', NULL, &delete, "delete fully merged branch", 1),
+ OPT_BIT('D', NULL, &delete, "delete branch (even if not merged)", 2),
+ OPT_BIT('m', NULL, &rename, "move/rename a branch and its reflog", 1),
+ OPT_BIT('M', NULL, &rename, "move/rename a branch, even if target exists", 2),
+ OPT_BOOLEAN('l', NULL, &reflog, "create the branch's reflog"),
+ OPT_BOOLEAN('f', NULL, &force_create, "force creation (when already exists)"),
+ OPT_END(),
+ };
git_config(git_branch_config);
- track = branch_track_remotes;
-
- for (i = 1; i < argc; i++) {
- const char *arg = argv[i];
-
- if (arg[0] != '-')
- break;
- if (!strcmp(arg, "--")) {
- i++;
- break;
- }
- if (!strcmp(arg, "--track")) {
- track = 1;
- continue;
- }
- if (!strcmp(arg, "--no-track")) {
- track = 0;
- continue;
- }
- if (!strcmp(arg, "-d")) {
- delete = 1;
- continue;
- }
- if (!strcmp(arg, "-D")) {
- delete = 1;
- force_delete = 1;
- continue;
- }
- if (!strcmp(arg, "-f")) {
- 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;
- }
- if (!strcmp(arg, "-a")) {
- kinds = REF_REMOTE_BRANCH | REF_LOCAL_BRANCH;
- continue;
- }
- if (!strcmp(arg, "-l")) {
- reflog = 1;
- continue;
- }
- if (!prefixcmp(arg, "--no-abbrev")) {
- abbrev = 0;
- continue;
- }
- if (!prefixcmp(arg, "--abbrev=")) {
- abbrev = strtoul(arg + 9, NULL, 10);
- if (abbrev < MINIMUM_ABBREV)
- abbrev = MINIMUM_ABBREV;
- else if (abbrev > 40)
- abbrev = 40;
- continue;
- }
- if (!strcmp(arg, "-v")) {
- verbose = 1;
- continue;
- }
- if (!strcmp(arg, "--color")) {
- branch_use_color = 1;
- continue;
- }
- if (!strcmp(arg, "--no-color")) {
- branch_use_color = 0;
- continue;
- }
- usage(builtin_branch_usage);
- }
-
- if ((delete && rename) || (delete && force_create) ||
- (rename && force_create))
- usage(builtin_branch_usage);
+ track = branch_track;
+ argc = parse_options(argc, argv, options, builtin_branch_usage, 0);
+ if (!!delete + !!rename + !!force_create > 1)
+ usage_with_options(builtin_branch_usage, options);
head = resolve_ref("HEAD", head_sha1, 0, NULL);
if (!head)
head = xstrdup(head);
if (!strcmp(head, "HEAD")) {
detached = 1;
- }
- else {
+ } else {
if (prefixcmp(head, "refs/heads/"))
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, 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 || i == argc - 2)
- create_branch(argv[i], (i == argc - 2) ? argv[i+1] : head,
+ return delete_branches(argc, argv, delete > 1, kinds);
+ else if (argc == 0)
+ print_ref_list(kinds, detached, verbose, abbrev, with_commit);
+ else if (rename && (argc == 1))
+ rename_branch(head, argv[0], rename > 1);
+ else if (rename && (argc == 2))
+ rename_branch(argv[0], argv[1], rename > 1);
+ else if (argc <= 2)
+ create_branch(argv[0], (argc == 2) ? argv[1] : head,
force_create, reflog, track);
else
- usage(builtin_branch_usage);
+ usage_with_options(builtin_branch_usage, options);
return 0;
}