summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJunio C Hamano <gitster@pobox.com>2019-03-07 00:59:53 (GMT)
committerJunio C Hamano <gitster@pobox.com>2019-03-07 00:59:54 (GMT)
commit3710f60a808ad79bfa604405a725e7accc64f743 (patch)
treecc7f02218768e80d8210f4429308f6d925b9163e
parent26e3ddcd7530dbb5f7748970ff16120e47d58f31 (diff)
parent0ecb1fc7269e15be890870937b8b639c987abd08 (diff)
downloadgit-3710f60a808ad79bfa604405a725e7accc64f743.zip
git-3710f60a808ad79bfa604405a725e7accc64f743.tar.gz
git-3710f60a808ad79bfa604405a725e7accc64f743.tar.bz2
Merge branch 'du/branch-show-current'
"git branch" learned a new subcommand "--show-current". * du/branch-show-current: branch: introduce --show-current display option
-rw-r--r--Documentation/git-branch.txt6
-rw-r--r--builtin/branch.c25
-rwxr-xr-xt/t3203-branch-output.sh44
3 files changed, 72 insertions, 3 deletions
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 3bd83a7..0cd87dd 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -9,7 +9,7 @@ SYNOPSIS
--------
[verse]
'git branch' [--color[=<when>] | --no-color] [-r | -a]
- [--list] [-v [--abbrev=<length> | --no-abbrev]]
+ [--list] [--show-current] [-v [--abbrev=<length> | --no-abbrev]]
[--column[=<options>] | --no-column] [--sort=<key>]
[(--merged | --no-merged) [<commit>]]
[--contains [<commit]] [--no-contains [<commit>]]
@@ -160,6 +160,10 @@ This option is only applicable in non-verbose mode.
branch --list 'maint-*'`, list only the branches that match
the pattern(s).
+--show-current::
+ Print the name of the current branch. In detached HEAD state,
+ nothing is printed.
+
-v::
-vv::
--verbose::
diff --git a/builtin/branch.c b/builtin/branch.c
index 1be7272..4c83055 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -443,6 +443,21 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin
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(0);
@@ -581,6 +596,7 @@ static int edit_branch_description(const char *branch_name)
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;
@@ -620,6 +636,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
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")),
@@ -662,14 +679,15 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, options, builtin_branch_usage,
0);
- if (!delete && !rename && !copy && !edit_description && !new_upstream && !unset_upstream && argc == 0)
+ if (!delete && !rename && !copy && !edit_description && !new_upstream &&
+ !show_current && !unset_upstream && argc == 0)
list = 1;
if (filter.with_commit || filter.merge != REF_FILTER_MERGED_NONE || filter.points_at.nr ||
filter.no_commit)
list = 1;
- if (!!delete + !!rename + !!copy + !!new_upstream +
+ if (!!delete + !!rename + !!copy + !!new_upstream + !!show_current +
list + unset_upstream > 1)
usage_with_options(builtin_branch_usage, options);
@@ -697,6 +715,9 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
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 --local also shows HEAD when it is detached */
if ((filter.kind & FILTER_REFS_BRANCHES) && filter.detached)
diff --git a/t/t3203-branch-output.sh b/t/t3203-branch-output.sh
index ee67876..be55148 100755
--- a/t/t3203-branch-output.sh
+++ b/t/t3203-branch-output.sh
@@ -100,6 +100,50 @@ test_expect_success 'git branch -v pattern does not show branch summaries' '
test_must_fail git branch -v branch*
'
+test_expect_success 'git branch `--show-current` shows current branch' '
+ cat >expect <<-\EOF &&
+ branch-two
+ EOF
+ git checkout branch-two &&
+ git branch --show-current >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git branch `--show-current` is silent when detached HEAD' '
+ git checkout HEAD^0 &&
+ git branch --show-current >actual &&
+ test_must_be_empty actual
+'
+
+test_expect_success 'git branch `--show-current` works properly when tag exists' '
+ cat >expect <<-\EOF &&
+ branch-and-tag-name
+ EOF
+ test_when_finished "
+ git checkout branch-one
+ git branch -D branch-and-tag-name
+ " &&
+ git checkout -b branch-and-tag-name &&
+ test_when_finished "git tag -d branch-and-tag-name" &&
+ git tag branch-and-tag-name &&
+ git branch --show-current >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git branch `--show-current` works properly with worktrees' '
+ cat >expect <<-\EOF &&
+ branch-one
+ branch-two
+ EOF
+ git checkout branch-one &&
+ git worktree add worktree branch-two &&
+ {
+ git branch --show-current &&
+ git -C worktree branch --show-current
+ } >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'git branch shows detached HEAD properly' '
cat >expect <<EOF &&
* (HEAD detached at $(git rev-parse --short HEAD^0))