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git/builtin/branch.c

876 lines
26 KiB

/*
* Builtin "git branch"
*
* Copyright (c) 2006 Kristian Høgsberg <krh@redhat.com>
* Based on git-branch.sh by Junio C Hamano.
*/
#include "cache.h"
#include "config.h"
#include "color.h"
#include "refs.h"
#include "commit.h"
#include "builtin.h"
#include "remote.h"
#include "parse-options.h"
#include "branch.h"
#include "diff.h"
#include "revision.h"
#include "string-list.h"
#include "column.h"
#include "utf8.h"
#include "wt-status.h"
#include "ref-filter.h"
#include "worktree.h"
#include "help.h"
#include "commit-reach.h"
static const char * const builtin_branch_usage[] = {
N_("git branch [<options>] [-r | -a] [--merged] [--no-merged]"),
N_("git branch [<options>] [-l] [-f] <branch-name> [<start-point>]"),
N_("git branch [<options>] [-r] (-d | -D) <branch-name>..."),
N_("git branch [<options>] (-m | -M) [<old-branch>] <new-branch>"),
N_("git branch [<options>] (-c | -C) [<old-branch>] <new-branch>"),
N_("git branch [<options>] [-r | -a] [--points-at]"),
N_("git branch [<options>] [-r | -a] [--format]"),
NULL
};
static const char *head;
static struct object_id head_oid;
static int branch_use_color = -1;
static char branch_colors[][COLOR_MAXLEN] = {
GIT_COLOR_RESET,
GIT_COLOR_NORMAL, /* PLAIN */
GIT_COLOR_RED, /* REMOTE */
GIT_COLOR_NORMAL, /* LOCAL */
GIT_COLOR_GREEN, /* CURRENT */
GIT_COLOR_BLUE, /* UPSTREAM */
GIT_COLOR_CYAN, /* WORKTREE */
};
enum color_branch {
BRANCH_COLOR_RESET = 0,
BRANCH_COLOR_PLAIN = 1,
BRANCH_COLOR_REMOTE = 2,
BRANCH_COLOR_LOCAL = 3,
BRANCH_COLOR_CURRENT = 4,
BRANCH_COLOR_UPSTREAM = 5,
BRANCH_COLOR_WORKTREE = 6
};
static const char *color_branch_slots[] = {
[BRANCH_COLOR_RESET] = "reset",
[BRANCH_COLOR_PLAIN] = "plain",
[BRANCH_COLOR_REMOTE] = "remote",
[BRANCH_COLOR_LOCAL] = "local",
[BRANCH_COLOR_CURRENT] = "current",
[BRANCH_COLOR_UPSTREAM] = "upstream",
[BRANCH_COLOR_WORKTREE] = "worktree",
};
static struct string_list output = STRING_LIST_INIT_DUP;
static unsigned int colopts;
define_list_config_array(color_branch_slots);
static int git_branch_config(const char *var, const char *value, void *cb)
{
const char *slot_name;
if (!strcmp(var, "branch.sort")) {
if (!value)
return config_error_nonbool(var);
string_list_append(cb, value);
return 0;
}
if (starts_with(var, "column."))
return git_column_config(var, value, "branch", &colopts);
if (!strcmp(var, "color.branch")) {
branch_use_color = git_config_colorbool(var, value);
return 0;
}
if (skip_prefix(var, "color.branch.", &slot_name)) {
int slot = LOOKUP_CONFIG(color_branch_slots, slot_name);
if (slot < 0)
return 0;
if (!value)
return config_error_nonbool(var);
return color_parse(value, branch_colors[slot]);
}
return git_color_default_config(var, value, cb);
}
static const char *branch_get_color(enum color_branch ix)
{
if (want_color(branch_use_color))
return branch_colors[ix];
return "";
}
static int branch_merged(int kind, const char *name,
struct commit *rev, struct commit *head_rev)
{
/*
* This checks whether the merge bases of branch and HEAD (or
* the other branch this branch builds upon) contains the
* branch, which means that the branch has already been merged
* safely to HEAD (or the other branch).
*/
struct commit *reference_rev = NULL;
const char *reference_name = NULL;
void *reference_name_to_free = NULL;
int merged;
if (kind == FILTER_REFS_BRANCHES) {
struct branch *branch = branch_get(name);
const char *upstream = branch_get_upstream(branch, NULL);
struct object_id oid;
if (upstream &&
(reference_name = reference_name_to_free =
resolve_refdup(upstream, RESOLVE_REF_READING,
&oid, NULL)) != NULL)
reference_rev = lookup_commit_reference(the_repository,
&oid);
}
if (!reference_rev)
reference_rev = head_rev;
merged = in_merge_bases(rev, reference_rev);
/*
* After the safety valve is fully redefined to "check with
* upstream, if any, otherwise with HEAD", we should just
* return the result of the in_merge_bases() above without
* any of the following code, but during the transition period,
* a gentle reminder is in order.
*/
if ((head_rev != reference_rev) &&
in_merge_bases(rev, head_rev) != merged) {
if (merged)
warning(_("deleting branch '%s' that has been merged to\n"
" '%s', but not yet merged to HEAD."),
name, reference_name);
else
warning(_("not deleting branch '%s' that is not yet merged to\n"
" '%s', even though it is merged to HEAD."),
name, reference_name);
}
free(reference_name_to_free);
return merged;
}
static int check_branch_commit(const char *branchname, const char *refname,
const struct object_id *oid, struct commit *head_rev,
int kinds, int force)
{
struct commit *rev = lookup_commit_reference(the_repository, oid);
if (!force && !rev) {
error(_("Couldn't look up commit object for '%s'"), refname);
return -1;
}
if (!force && !branch_merged(kinds, branchname, rev, head_rev)) {
error(_("The branch '%s' is not fully merged.\n"
"If you are sure you want to delete it, "
"run 'git branch -D %s'."), branchname, branchname);
return -1;
}
return 0;
}
static void delete_branch_config(const char *branchname)
{
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf, "branch.%s", branchname);
if (git_config_rename_section(buf.buf, NULL) < 0)
warning(_("Update of config-file failed"));
strbuf_release(&buf);
}
static int delete_branches(int argc, const char **argv, int force, int kinds,
int quiet)
{
struct worktree **worktrees;
struct commit *head_rev = NULL;
struct object_id oid;
char *name = NULL;
const char *fmt;
int i;
int ret = 0;
int remote_branch = 0;
struct strbuf bname = STRBUF_INIT;
unsigned allowed_interpret;
struct string_list refs_to_delete = STRING_LIST_INIT_DUP;
struct string_list_item *item;
int branch_name_pos;
switch (kinds) {
case FILTER_REFS_REMOTES:
fmt = "refs/remotes/%s";
/* For subsequent UI messages */
remote_branch = 1;
allowed_interpret = INTERPRET_BRANCH_REMOTE;
force = 1;
break;
case FILTER_REFS_BRANCHES:
fmt = "refs/heads/%s";
allowed_interpret = INTERPRET_BRANCH_LOCAL;
break;
default:
die(_("cannot use -a with -d"));
}
branch_name_pos = strcspn(fmt, "%");
if (!force) {
head_rev = lookup_commit_reference(the_repository, &head_oid);
if (!head_rev)
die(_("Couldn't look up commit object for HEAD"));
}
worktrees = get_worktrees();
for (i = 0; i < argc; i++, strbuf_reset(&bname)) {
char *target = NULL;
int flags = 0;
strbuf_branchname(&bname, argv[i], allowed_interpret);
free(name);
name = mkpathdup(fmt, bname.buf);
if (kinds == FILTER_REFS_BRANCHES) {
const struct worktree *wt =
find_shared_symref(worktrees, "HEAD", name);
if (wt) {
error(_("Cannot delete branch '%s' "
"checked out at '%s'"),
bname.buf, wt->path);
ret = 1;
continue;
}
}
target = resolve_refdup(name,
RESOLVE_REF_READING
| RESOLVE_REF_NO_RECURSE
| RESOLVE_REF_ALLOW_BAD_NAME,
&oid, &flags);
if (!target) {
error(remote_branch
? _("remote-tracking branch '%s' not found.")
: _("branch '%s' not found."), bname.buf);
ret = 1;
continue;
}
if (!(flags & (REF_ISSYMREF|REF_ISBROKEN)) &&
check_branch_commit(bname.buf, name, &oid, head_rev, kinds,
force)) {
ret = 1;
goto next;
}
item = string_list_append(&refs_to_delete, name);
item->util = xstrdup((flags & REF_ISBROKEN) ? "broken"
: (flags & REF_ISSYMREF) ? target
: find_unique_abbrev(&oid, DEFAULT_ABBREV));
next:
free(target);
}
if (delete_refs(NULL, &refs_to_delete, REF_NO_DEREF))
ret = 1;
for_each_string_list_item(item, &refs_to_delete) {
char *describe_ref = item->util;
char *name = item->string;
if (!ref_exists(name)) {
char *refname = name + branch_name_pos;
if (!quiet)
printf(remote_branch
? _("Deleted remote-tracking branch %s (was %s).\n")
: _("Deleted branch %s (was %s).\n"),
name + branch_name_pos, describe_ref);
delete_branch_config(refname);
}
free(describe_ref);
}
string_list_clear(&refs_to_delete, 0);
free(name);
strbuf_release(&bname);
free_worktrees(worktrees);
return ret;
}
static int calc_maxwidth(struct ref_array *refs, int remote_bonus)
{
int i, max = 0;
for (i = 0; i < refs->nr; i++) {
struct ref_array_item *it = refs->items[i];
const char *desc = it->refname;
int w;
skip_prefix(it->refname, "refs/heads/", &desc);
skip_prefix(it->refname, "refs/remotes/", &desc);
if (it->kind == FILTER_REFS_DETACHED_HEAD) {
char *head_desc = get_head_description();
w = utf8_strwidth(head_desc);
free(head_desc);
} else
w = utf8_strwidth(desc);
if (it->kind == FILTER_REFS_REMOTES)
w += remote_bonus;
if (w > max)
max = w;
}
return max;
}
static const char *quote_literal_for_format(const char *s)
{
static struct strbuf buf = STRBUF_INIT;
strbuf_reset(&buf);
while (*s) {
const char *ep = strchrnul(s, '%');
if (s < ep)
strbuf_add(&buf, s, ep - s);
if (*ep == '%') {
strbuf_addstr(&buf, "%%");
s = ep + 1;
} else {
s = ep;
}
}
return buf.buf;
}
static char *build_format(struct ref_filter *filter, int maxwidth, const char *remote_prefix)
{
struct strbuf fmt = STRBUF_INIT;
struct strbuf local = STRBUF_INIT;
struct strbuf remote = STRBUF_INIT;
strbuf_addf(&local, "%%(if)%%(HEAD)%%(then)* %s%%(else)%%(if)%%(worktreepath)%%(then)+ %s%%(else) %s%%(end)%%(end)",
branch_get_color(BRANCH_COLOR_CURRENT),
branch_get_color(BRANCH_COLOR_WORKTREE),
branch_get_color(BRANCH_COLOR_LOCAL));
strbuf_addf(&remote, " %s",
branch_get_color(BRANCH_COLOR_REMOTE));
if (filter->verbose) {
struct strbuf obname = STRBUF_INIT;
if (filter->abbrev < 0)
strbuf_addf(&obname, "%%(objectname:short)");
else if (!filter->abbrev)
strbuf_addf(&obname, "%%(objectname)");
else
strbuf_addf(&obname, "%%(objectname:short=%d)", filter->abbrev);
strbuf_addf(&local, "%%(align:%d,left)%%(refname:lstrip=2)%%(end)", maxwidth);
strbuf_addstr(&local, branch_get_color(BRANCH_COLOR_RESET));
strbuf_addf(&local, " %s ", obname.buf);
if (filter->verbose > 1)
{
strbuf_addf(&local, "%%(if:notequals=*)%%(HEAD)%%(then)%%(if)%%(worktreepath)%%(then)(%s%%(worktreepath)%s) %%(end)%%(end)",
branch_get_color(BRANCH_COLOR_WORKTREE), branch_get_color(BRANCH_COLOR_RESET));
strbuf_addf(&local, "%%(if)%%(upstream)%%(then)[%s%%(upstream:short)%s%%(if)%%(upstream:track)"
"%%(then): %%(upstream:track,nobracket)%%(end)] %%(end)%%(contents:subject)",
branch_get_color(BRANCH_COLOR_UPSTREAM), branch_get_color(BRANCH_COLOR_RESET));
}
else
strbuf_addf(&local, "%%(if)%%(upstream:track)%%(then)%%(upstream:track) %%(end)%%(contents:subject)");
strbuf_addf(&remote, "%%(align:%d,left)%s%%(refname:lstrip=2)%%(end)%s"
"%%(if)%%(symref)%%(then) -> %%(symref:short)"
"%%(else) %s %%(contents:subject)%%(end)",
maxwidth, quote_literal_for_format(remote_prefix),
branch_get_color(BRANCH_COLOR_RESET), obname.buf);
strbuf_release(&obname);
} else {
strbuf_addf(&local, "%%(refname:lstrip=2)%s%%(if)%%(symref)%%(then) -> %%(symref:short)%%(end)",
branch_get_color(BRANCH_COLOR_RESET));
strbuf_addf(&remote, "%s%%(refname:lstrip=2)%s%%(if)%%(symref)%%(then) -> %%(symref:short)%%(end)",
quote_literal_for_format(remote_prefix),
branch_get_color(BRANCH_COLOR_RESET));
}
strbuf_addf(&fmt, "%%(if:notequals=refs/remotes)%%(refname:rstrip=-2)%%(then)%s%%(else)%s%%(end)", local.buf, remote.buf);
strbuf_release(&local);
strbuf_release(&remote);
return strbuf_detach(&fmt, NULL);
}
static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sorting,
struct ref_format *format, struct string_list *output)
{
int i;
struct ref_array array;
struct strbuf out = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
int maxwidth = 0;
const char *remote_prefix = "";
char *to_free = NULL;
/*
* If we are listing more than just remote branches,
* then remote branches will have a "remotes/" prefix.
* We need to account for this in the width.
*/
if (filter->kind != FILTER_REFS_REMOTES)
remote_prefix = "remotes/";
memset(&array, 0, sizeof(array));
filter_refs(&array, filter, filter->kind);
if (filter->verbose)
maxwidth = calc_maxwidth(&array, strlen(remote_prefix));
if (!format->format)
format->format = to_free = build_format(filter, maxwidth, remote_prefix);
format->use_color = branch_use_color;
if (verify_ref_format(format))
die(_("unable to parse format string"));
ref_array_sort(sorting, &array);
for (i = 0; i < array.nr; i++) {
strbuf_reset(&err);
strbuf_reset(&out);
if (format_ref_array_item(array.items[i], format, &out, &err))
die("%s", err.buf);
if (column_active(colopts)) {
assert(!filter->verbose && "--column and --verbose are incompatible");
/* format to a string_list to let print_columns() do its job */
string_list_append(output, out.buf);
} else {
fwrite(out.buf, 1, out.len, stdout);
putchar('\n');
}
}
strbuf_release(&err);
strbuf_release(&out);
ref_array_clear(&array);
free(to_free);
}
static void print_current_branch_name(void)
{
int flags;
const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, &flags);
const char *shortname;
if (!refname)
die(_("could not resolve HEAD"));
else if (!(flags & REF_ISSYMREF))
return;
else if (skip_prefix(refname, "refs/heads/", &shortname))
puts(shortname);
else
die(_("HEAD (%s) points outside of refs/heads/"), refname);
}
static void reject_rebase_or_bisect_branch(const char *target)
{
struct worktree **worktrees = get_worktrees();
int i;
for (i = 0; worktrees[i]; i++) {
struct worktree *wt = worktrees[i];
if (!wt->is_detached)
continue;
if (is_worktree_being_rebased(wt, target))
die(_("Branch %s is being rebased at %s"),
target, wt->path);
if (is_worktree_being_bisected(wt, target))
die(_("Branch %s is being bisected at %s"),
target, wt->path);
}
free_worktrees(worktrees);
}
static void copy_or_rename_branch(const char *oldname, const char *newname, int copy, int force)
{
struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT;
struct strbuf oldsection = STRBUF_INIT, newsection = STRBUF_INIT;
const char *interpreted_oldname = NULL;
const char *interpreted_newname = NULL;
int recovery = 0;
if (!oldname) {
if (copy)
die(_("cannot copy the current branch while not on any."));
else
die(_("cannot rename the current branch while not on any."));
}
if (strbuf_check_branch_ref(&oldref, oldname)) {
/*
* Bad name --- this could be an attempt to rename a
* ref that we used to allow to be created by accident.
*/
if (ref_exists(oldref.buf))
recovery = 1;
else
die(_("Invalid branch name: '%s'"), oldname);
}
/*
* A command like "git branch -M currentbranch currentbranch" cannot
* cause the worktree to become inconsistent with HEAD, so allow it.
*/
if (!strcmp(oldname, newname))
validate_branchname(newname, &newref);
else
validate_new_branchname(newname, &newref, force);
reject_rebase_or_bisect_branch(oldref.buf);
if (!skip_prefix(oldref.buf, "refs/heads/", &interpreted_oldname) ||
!skip_prefix(newref.buf, "refs/heads/", &interpreted_newname)) {
BUG("expected prefix missing for refs");
}
if (copy)
strbuf_addf(&logmsg, "Branch: copied %s to %s",
oldref.buf, newref.buf);
else
strbuf_addf(&logmsg, "Branch: renamed %s to %s",
oldref.buf, newref.buf);
if (!copy &&
(!head || strcmp(oldname, head) || !is_null_oid(&head_oid)) &&
rename_ref(oldref.buf, newref.buf, logmsg.buf))
die(_("Branch rename failed"));
if (copy && copy_existing_ref(oldref.buf, newref.buf, logmsg.buf))
die(_("Branch copy failed"));
if (recovery) {
if (copy)
warning(_("Created a copy of a misnamed branch '%s'"),
interpreted_oldname);
else
warning(_("Renamed a misnamed branch '%s' away"),
interpreted_oldname);
}
if (!copy &&
replace_each_worktree_head_symref(oldref.buf, newref.buf, logmsg.buf))
die(_("Branch renamed to %s, but HEAD is not updated!"), newname);
strbuf_release(&logmsg);
strbuf_addf(&oldsection, "branch.%s", interpreted_oldname);
strbuf_release(&oldref);
strbuf_addf(&newsection, "branch.%s", interpreted_newname);
strbuf_release(&newref);
if (!copy && git_config_rename_section(oldsection.buf, newsection.buf) < 0)
die(_("Branch is renamed, but update of config-file failed"));
if (copy && strcmp(oldname, newname) && git_config_copy_section(oldsection.buf, newsection.buf) < 0)
die(_("Branch is copied, but update of config-file failed"));
strbuf_release(&oldsection);
strbuf_release(&newsection);
}
static GIT_PATH_FUNC(edit_description, "EDIT_DESCRIPTION")
static int edit_branch_description(const char *branch_name)
{
struct strbuf buf = STRBUF_INIT;
struct strbuf name = STRBUF_INIT;
read_branch_desc(&buf, branch_name);
if (!buf.len || buf.buf[buf.len-1] != '\n')
strbuf_addch(&buf, '\n');
strbuf_commented_addf(&buf,
_("Please edit the description for the branch\n"
" %s\n"
"Lines starting with '%c' will be stripped.\n"),
branch_name, comment_line_char);
write_file_buf(edit_description(), buf.buf, buf.len);
strbuf_reset(&buf);
if (launch_editor(edit_description(), &buf, NULL)) {
strbuf_release(&buf);
return -1;
}
strbuf_stripspace(&buf, 1);
strbuf_addf(&name, "branch.%s.description", branch_name);
git_config_set(name.buf, buf.len ? buf.buf : NULL);
strbuf_release(&name);
strbuf_release(&buf);
return 0;
}
int cmd_branch(int argc, const char **argv, const char *prefix)
{
int delete = 0, rename = 0, copy = 0, force = 0, list = 0;
int show_current = 0;
int reflog = 0, edit_description = 0;
int quiet = 0, unset_upstream = 0;
const char *new_upstream = NULL;
enum branch_track track;
struct ref_filter filter;
int icase = 0;
static struct ref_sorting *sorting;
struct string_list sorting_options = STRING_LIST_INIT_DUP;
struct ref_format format = REF_FORMAT_INIT;
struct option options[] = {
OPT_GROUP(N_("Generic options")),
OPT__VERBOSE(&filter.verbose,
N_("show hash and subject, give twice for upstream branch")),
OPT__QUIET(&quiet, N_("suppress informational messages")),
OPT_CALLBACK_F('t', "track", &track, "(direct|inherit)",
N_("set branch tracking configuration"),
PARSE_OPT_OPTARG,
parse_opt_tracking_mode),
OPT_SET_INT_F(0, "set-upstream", &track, N_("do not use"),
BRANCH_TRACK_OVERRIDE, PARSE_OPT_HIDDEN),
OPT_STRING('u', "set-upstream-to", &new_upstream, N_("upstream"), N_("change the upstream info")),
OPT_BOOL(0, "unset-upstream", &unset_upstream, N_("unset the upstream info")),
OPT__COLOR(&branch_use_color, N_("use colored output")),
OPT_SET_INT('r', "remotes", &filter.kind, N_("act on remote-tracking branches"),
FILTER_REFS_REMOTES),
OPT_CONTAINS(&filter.with_commit, N_("print only branches that contain the commit")),
OPT_NO_CONTAINS(&filter.no_commit, N_("print only branches that don't contain the commit")),
OPT_WITH(&filter.with_commit, N_("print only branches that contain the commit")),
OPT_WITHOUT(&filter.no_commit, N_("print only branches that don't contain the commit")),
OPT__ABBREV(&filter.abbrev),
OPT_GROUP(N_("Specific git-branch actions:")),
OPT_SET_INT('a', "all", &filter.kind, N_("list both remote-tracking and local branches"),
FILTER_REFS_REMOTES | FILTER_REFS_BRANCHES),
OPT_BIT('d', "delete", &delete, N_("delete fully merged branch"), 1),
OPT_BIT('D', NULL, &delete, N_("delete branch (even if not merged)"), 2),
OPT_BIT('m', "move", &rename, N_("move/rename a branch and its reflog"), 1),
OPT_BIT('M', NULL, &rename, N_("move/rename a branch, even if target exists"), 2),
OPT_BIT('c', "copy", &copy, N_("copy a branch and its reflog"), 1),
OPT_BIT('C', NULL, &copy, N_("copy a branch, even if target exists"), 2),
OPT_BOOL('l', "list", &list, N_("list branch names")),
OPT_BOOL(0, "show-current", &show_current, N_("show current branch name")),
OPT_BOOL(0, "create-reflog", &reflog, N_("create the branch's reflog")),
OPT_BOOL(0, "edit-description", &edit_description,
N_("edit the description for the branch")),
OPT__FORCE(&force, N_("force creation, move/rename, deletion"), PARSE_OPT_NOCOMPLETE),
OPT_MERGED(&filter, N_("print only branches that are merged")),
OPT_NO_MERGED(&filter, N_("print only branches that are not merged")),
OPT_COLUMN(0, "column", &colopts, N_("list branches in columns")),
OPT_REF_SORT(&sorting_options),
OPT_CALLBACK(0, "points-at", &filter.points_at, N_("object"),
N_("print only branches of the object"), parse_opt_object_name),
OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
OPT_STRING( 0 , "format", &format.format, N_("format"), N_("format to use for the output")),
OPT_END(),
};
setup_ref_filter_porcelain_msg();
memset(&filter, 0, sizeof(filter));
filter.kind = FILTER_REFS_BRANCHES;
filter.abbrev = -1;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(builtin_branch_usage, options);
git_config(git_branch_config, &sorting_options);
track = git_branch_track;
head = resolve_refdup("HEAD", 0, &head_oid, NULL);
if (!head)
die(_("Failed to resolve HEAD as a valid ref."));
if (!strcmp(head, "HEAD"))
filter.detached = 1;
else if (!skip_prefix(head, "refs/heads/", &head))
die(_("HEAD not found below refs/heads!"));
argc = parse_options(argc, argv, prefix, options, builtin_branch_usage,
0);
if (!delete && !rename && !copy && !edit_description && !new_upstream &&
!show_current && !unset_upstream && argc == 0)
list = 1;
if (filter.with_commit || filter.no_commit ||
filter.reachable_from || filter.unreachable_from || filter.points_at.nr)
list = 1;
if (!!delete + !!rename + !!copy + !!new_upstream + !!show_current +
list + edit_description + unset_upstream > 1)
usage_with_options(builtin_branch_usage, options);
if (filter.abbrev == -1)
filter.abbrev = DEFAULT_ABBREV;
filter.ignore_case = icase;
finalize_colopts(&colopts, -1);
if (filter.verbose) {
if (explicitly_enable_column(colopts))
die(_("options '%s' and '%s' cannot be used together"), "--column", "--verbose");
colopts = 0;
}
if (force) {
delete *= 2;
rename *= 2;
copy *= 2;
}
if (list)
setup_auto_pager("branch", 1);
if (delete) {
if (!argc)
die(_("branch name required"));
return delete_branches(argc, argv, delete > 1, filter.kind, quiet);
} else if (show_current) {
print_current_branch_name();
return 0;
} else if (list) {
/* git branch --list also shows HEAD when it is detached */
if ((filter.kind & FILTER_REFS_BRANCHES) && filter.detached)
filter.kind |= FILTER_REFS_DETACHED_HEAD;
filter.name_patterns = argv;
/*
* If no sorting parameter is given then we default to sorting
* by 'refname'. This would give us an alphabetically sorted
* array with the 'HEAD' ref at the beginning followed by
* local branches 'refs/heads/...' and finally remote-tracking
* branches 'refs/remotes/...'.
*/
sorting = ref_sorting_options(&sorting_options);
ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
ref_sorting_set_sort_flags_all(
sorting, REF_SORTING_DETACHED_HEAD_FIRST, 1);
print_ref_list(&filter, sorting, &format, &output);
print_columns(&output, colopts, NULL);
string_list_clear(&output, 0);
ref_sorting_release(sorting);
return 0;
} else if (edit_description) {
const char *branch_name;
struct strbuf branch_ref = STRBUF_INIT;
if (!argc) {
if (filter.detached)
die(_("Cannot give description to detached HEAD"));
branch_name = head;
} else if (argc == 1)
branch_name = argv[0];
else
die(_("cannot edit description of more than one branch"));
strbuf_addf(&branch_ref, "refs/heads/%s", branch_name);
if (!ref_exists(branch_ref.buf)) {
strbuf_release(&branch_ref);
if (!argc)
return error(_("No commit on branch '%s' yet."),
branch_name);
else
return error(_("No branch named '%s'."),
branch_name);
}
strbuf_release(&branch_ref);
if (edit_branch_description(branch_name))
return 1;
} else if (copy) {
if (!argc)
die(_("branch name required"));
else if (argc == 1)
copy_or_rename_branch(head, argv[0], 1, copy > 1);
else if (argc == 2)
copy_or_rename_branch(argv[0], argv[1], 1, copy > 1);
else
die(_("too many branches for a copy operation"));
} else if (rename) {
if (!argc)
die(_("branch name required"));
else if (argc == 1)
copy_or_rename_branch(head, argv[0], 0, rename > 1);
else if (argc == 2)
copy_or_rename_branch(argv[0], argv[1], 0, rename > 1);
else
die(_("too many arguments for a rename operation"));
} else if (new_upstream) {
struct branch *branch = branch_get(argv[0]);
if (argc > 1)
die(_("too many arguments to set new upstream"));
if (!branch) {
if (!argc || !strcmp(argv[0], "HEAD"))
die(_("could not set upstream of HEAD to %s when "
"it does not point to any branch."),
new_upstream);
die(_("no such branch '%s'"), argv[0]);
}
if (!ref_exists(branch->refname))
die(_("branch '%s' does not exist"), branch->name);
/*
* create_branch takes care of setting up the tracking
* info and making sure new_upstream is correct
*/
create_branch(the_repository, branch->name, new_upstream,
0, 0, 0, quiet, BRANCH_TRACK_OVERRIDE);
} else if (unset_upstream) {
struct branch *branch = branch_get(argv[0]);
struct strbuf buf = STRBUF_INIT;
if (argc > 1)
die(_("too many arguments to unset upstream"));
if (!branch) {
if (!argc || !strcmp(argv[0], "HEAD"))
die(_("could not unset upstream of HEAD when "
"it does not point to any branch."));
die(_("no such branch '%s'"), argv[0]);
}
if (!branch_has_merge_config(branch))
die(_("Branch '%s' has no upstream information"), branch->name);
strbuf_addf(&buf, "branch.%s.remote", branch->name);
git_config_set_multivar(buf.buf, NULL, NULL, CONFIG_FLAGS_MULTI_REPLACE);
strbuf_reset(&buf);
strbuf_addf(&buf, "branch.%s.merge", branch->name);
git_config_set_multivar(buf.buf, NULL, NULL, CONFIG_FLAGS_MULTI_REPLACE);
strbuf_release(&buf);
} else if (argc > 0 && argc <= 2) {
if (filter.kind != FILTER_REFS_BRANCHES)
die(_("The -a, and -r, options to 'git branch' do not take a branch name.\n"
"Did you mean to use: -a|-r --list <pattern>?"));
if (track == BRANCH_TRACK_OVERRIDE)
die(_("the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead."));
create_branch(the_repository,
argv[0], (argc == 2) ? argv[1] : head,
force, 0, reflog, quiet, track);
} else
usage_with_options(builtin_branch_usage, options);
return 0;
}