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From: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
	"Eric Sunshine" <sunshine@sunshineco.com>,
	kaartic.sivaraam@gmail.com,
	"Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Subject: [PATCH 3/7] worktree move: new command
Date: Wed, 24 Jan 2018 16:53:53 +0700	[thread overview]
Message-ID: <20180124095357.19645-4-pclouds@gmail.com> (raw)
In-Reply-To: <20180124095357.19645-1-pclouds@gmail.com>

This command allows to relocate linked worktrees. Main worktree cannot
(yet) be moved.

There are two options to move the main worktree, but both have
complications, so it's not implemented yet. Anyway the options are:

- convert the main worktree to a linked one and move it away, leave
  the git repository where it is. The repo essentially becomes bare
  after this move.

- move the repository with the main worktree. The tricky part is make
  sure all file descriptors to the repository are closed, or it may
  fail on Windows.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/git-worktree.txt         |  7 ++++-
 builtin/worktree.c                     | 50 ++++++++++++++++++++++++++++++++++
 contrib/completion/git-completion.bash |  2 +-
 t/t2028-worktree-move.sh               | 31 +++++++++++++++++++++
 4 files changed, 88 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt
index 41585f535d..5d115b855a 100644
--- a/Documentation/git-worktree.txt
+++ b/Documentation/git-worktree.txt
@@ -12,6 +12,7 @@ SYNOPSIS
 'git worktree add' [-f] [--detach] [--checkout] [--lock] [-b <new-branch>] <path> [<commit-ish>]
 'git worktree list' [--porcelain]
 'git worktree lock' [--reason <string>] <worktree>
+'git worktree move' <worktree> <new-path>
 'git worktree prune' [-n] [-v] [--expire <expire>]
 'git worktree unlock' <worktree>
 
@@ -79,6 +80,11 @@ files from being pruned automatically. This also prevents it from
 being moved or deleted. Optionally, specify a reason for the lock
 with `--reason`.
 
+move::
+
+Move a working tree to a new location. Note that the main working tree
+cannot be moved.
+
 prune::
 
 Prune working tree information in $GIT_DIR/worktrees.
@@ -281,7 +287,6 @@ performed manually, such as:
 
 - `remove` to remove a linked working tree and its administrative files (and
   warn if the working tree is dirty)
-- `mv` to move or rename a working tree and update its administrative files
 
 GIT
 ---
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 7cef5b120b..2faa95430a 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -17,6 +17,7 @@ static const char * const worktree_usage[] = {
 	N_("git worktree add [<options>] <path> [<branch>]"),
 	N_("git worktree list [<options>]"),
 	N_("git worktree lock [<options>] <path>"),
+	N_("git worktree move <worktree> <new-path>"),
 	N_("git worktree prune [<options>]"),
 	N_("git worktree unlock <path>"),
 	NULL
@@ -605,6 +606,53 @@ static int unlock_worktree(int ac, const char **av, const char *prefix)
 	return ret;
 }
 
+static int move_worktree(int ac, const char **av, const char *prefix)
+{
+	struct option options[] = {
+		OPT_END()
+	};
+	struct worktree **worktrees, *wt;
+	struct strbuf dst = STRBUF_INIT;
+	struct strbuf errmsg = STRBUF_INIT;
+	const char *reason;
+	char *path;
+
+	ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
+	if (ac != 2)
+		usage_with_options(worktree_usage, options);
+
+	path = prefix_filename(prefix, av[1]);
+	strbuf_addstr(&dst, path);
+	free(path);
+	if (file_exists(dst.buf))
+		die(_("target '%s' already exists"), av[1]);
+
+	worktrees = get_worktrees(0);
+	wt = find_worktree(worktrees, prefix, av[0]);
+	if (!wt)
+		die(_("'%s' is not a working tree"), av[0]);
+	if (is_main_worktree(wt))
+		die(_("'%s' is a main working tree"), av[0]);
+	reason = is_worktree_locked(wt);
+	if (reason) {
+		if (*reason)
+			die(_("cannot move a locked working tree, lock reason: %s"),
+			    reason);
+		die(_("cannot move a locked working tree"));
+	}
+	if (validate_worktree(wt, &errmsg))
+		die(_("validation failed, cannot move working tree:\n%s"),
+		    errmsg.buf);
+	strbuf_release(&errmsg);
+
+	if (rename(wt->path, dst.buf) == -1)
+		die_errno(_("failed to move '%s' to '%s'"), wt->path, dst.buf);
+
+	update_worktree_location(wt, dst.buf);
+
+	return 0;
+}
+
 int cmd_worktree(int ac, const char **av, const char *prefix)
 {
 	struct option options[] = {
@@ -627,5 +675,7 @@ int cmd_worktree(int ac, const char **av, const char *prefix)
 		return lock_worktree(ac - 1, av + 1, prefix);
 	if (!strcmp(av[1], "unlock"))
 		return unlock_worktree(ac - 1, av + 1, prefix);
+	if (!strcmp(av[1], "move"))
+		return move_worktree(ac - 1, av + 1, prefix);
 	usage_with_options(worktree_usage, options);
 }
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 3683c772c5..b87d387686 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -3087,7 +3087,7 @@ _git_whatchanged ()
 
 _git_worktree ()
 {
-	local subcommands="add list lock prune unlock"
+	local subcommands="add list lock move prune unlock"
 	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		__gitcomp "$subcommands"
diff --git a/t/t2028-worktree-move.sh b/t/t2028-worktree-move.sh
index 8298aaf97f..bef420a086 100755
--- a/t/t2028-worktree-move.sh
+++ b/t/t2028-worktree-move.sh
@@ -59,4 +59,35 @@ test_expect_success 'unlock worktree twice' '
 	test_path_is_missing .git/worktrees/source/locked
 '
 
+test_expect_success 'move non-worktree' '
+	mkdir abc &&
+	test_must_fail git worktree move abc def
+'
+
+test_expect_success 'move locked worktree' '
+	git worktree lock source &&
+	test_must_fail git worktree move source destination &&
+	git worktree unlock source
+'
+
+test_expect_success 'move worktree' '
+	toplevel="$(pwd)" &&
+	git worktree move source destination &&
+	test_path_is_missing source &&
+	git worktree list --porcelain | grep "^worktree" >actual &&
+	cat <<-EOF >expected &&
+	worktree $toplevel
+	worktree $toplevel/destination
+	worktree $toplevel/elsewhere
+	EOF
+	test_cmp expected actual &&
+	git -C destination log --format=%s >actual2 &&
+	echo init >expected2 &&
+	test_cmp expected2 actual2
+'
+
+test_expect_success 'move main worktree' '
+	test_must_fail git worktree move . def
+'
+
 test_done
-- 
2.16.0.47.g3d9b0fac3a


  parent reply	other threads:[~2018-01-24  9:54 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-24  9:53 [PATCH 0/7] nd/worktree-move reboot Nguyễn Thái Ngọc Duy
2018-01-24  9:53 ` [PATCH 1/7] worktree.c: add validate_worktree() Nguyễn Thái Ngọc Duy
2018-01-24  9:53 ` [PATCH 2/7] worktree.c: add update_worktree_location() Nguyễn Thái Ngọc Duy
2018-02-02  8:23   ` Eric Sunshine
2018-02-02  9:35     ` Duy Nguyen
2018-01-24  9:53 ` Nguyễn Thái Ngọc Duy [this message]
2018-02-02  9:15   ` [PATCH 3/7] worktree move: new command Eric Sunshine
2018-02-02 11:23     ` Eric Sunshine
2018-02-05 13:28       ` Duy Nguyen
2018-02-06  2:13         ` Jeff King
2018-02-06 20:05           ` Martin Ågren
2018-02-12  9:56             ` Duy Nguyen
2018-02-12 22:15               ` Martin Ågren
2018-02-13  0:27                 ` Duy Nguyen
2018-02-14  3:16                   ` Jeff King
2018-02-14  9:07                     ` Duy Nguyen
2018-02-14 17:35                       ` Junio C Hamano
2018-02-14 21:56                         ` [PATCH] t/known-leaky: add list of known-leaky test scripts Martin Ågren
2018-02-19 21:29                           ` Jeff King
2018-02-20 20:44                             ` Martin Ågren
2018-02-20 21:08                               ` Jeff King
2018-02-21 16:53                               ` Junio C Hamano
2018-02-21 18:25                                 ` Jeff King
2018-02-25  3:48                               ` Kaartic Sivaraam
2018-02-26 21:22                                 ` Martin Ågren
2018-01-24  9:53 ` [PATCH 4/7] worktree move: accept destination as directory Nguyễn Thái Ngọc Duy
2018-02-02  9:35   ` Eric Sunshine
2018-01-24  9:53 ` [PATCH 5/7] worktree move: refuse to move worktrees with submodules Nguyễn Thái Ngọc Duy
2018-02-02 10:06   ` Eric Sunshine
2018-01-24  9:53 ` [PATCH 6/7] worktree remove: new command Nguyễn Thái Ngọc Duy
2018-02-02 11:47   ` Eric Sunshine
2018-02-12  9:26     ` Duy Nguyen
2018-01-24  9:53 ` [PATCH 7/7] worktree remove: allow it when $GIT_WORK_TREE is already gone Nguyễn Thái Ngọc Duy
2018-02-02 12:59   ` Eric Sunshine
2018-01-24 20:42 ` [PATCH 0/7] nd/worktree-move reboot Junio C Hamano
2018-02-12  9:49 ` [PATCH v2 " Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 1/7] worktree.c: add validate_worktree() Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 2/7] worktree.c: add update_worktree_location() Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 3/7] worktree move: new command Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 4/7] worktree move: accept destination as directory Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 5/7] worktree move: refuse to move worktrees with submodules Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 6/7] worktree remove: new command Nguyễn Thái Ngọc Duy
2018-02-12  9:49   ` [PATCH v2 7/7] worktree remove: allow it when $GIT_WORK_TREE is already gone Nguyễn Thái Ngọc Duy
2018-03-04  5:26   ` [PATCH] t2028: fix minor error and issues in newly-added "worktree move" tests Eric Sunshine
2018-03-05  9:32     ` Duy Nguyen
2018-03-05 12:48     ` SZEDER Gábor
2018-03-05 18:37       ` Junio C Hamano
2018-03-05 18:44         ` Eric Sunshine
2018-03-04  5:36   ` [PATCH v2 0/7] nd/worktree-move reboot Eric Sunshine

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