From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-2.8 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,T_RP_MATCHES_RCVD shortcircuit=no autolearn=no autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id E01AA1F576 for ; Mon, 12 Feb 2018 09:50:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933403AbeBLJum (ORCPT ); Mon, 12 Feb 2018 04:50:42 -0500 Received: from mail-it0-f47.google.com ([209.85.214.47]:37586 "EHLO mail-it0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933377AbeBLJuj (ORCPT ); Mon, 12 Feb 2018 04:50:39 -0500 Received: by mail-it0-f47.google.com with SMTP id h129so5819223ita.2 for ; Mon, 12 Feb 2018 01:50:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=w3rQLIRLMGk9ohHxZo32bMPcCi52vjtTM3yFBQPPMO0=; b=de9was93VYpwD+KlKTWuDOnEWkFq7GTFJpIvjqPdMoEhGmGMw1SHNM1l8TRCbilnj7 ZGIdMEGKKLGsecwKE57pvmEc5G2tTDvP+FvZ4Rcvumo22ZlGbPfqFIVe8V2mGS8ac6vX hUz9DScTucJ/RohfWrPYcxDggJLOnPRH8jU9ogp23MpPVV4PviTGp+m/1ayDRo8hMegF EF8KkXhKSMBYdPDUhh12mPMbT1sBQMT+VQ/tVp2ymXm/2I+pezYcZTA1CFXNemNDWgO8 CYAh1FjHmdv4O+2lGhEoo8ItLTqCdH1GcsL4tjSQP6Zpe4zJRPhMHj14h3xOBjk/CxiV 3G+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=w3rQLIRLMGk9ohHxZo32bMPcCi52vjtTM3yFBQPPMO0=; b=jRGMAw0vrOadHP4rQTP/SHR1lN4z56jrwfLpO2NW1g+/HeVXl4uNKFc/1ZgxgWqn3B PVI3vh9yIPxn12oGoSRFfWYQi8JweU4GdFdgcxzlr3XMqehcNRTpITjJUJxcdlqZgRim 6PPmgVtY0ewyPcwf2VHRYojVNPkGcwlxi+fB9g5jElY/XKOXhOkI/bvGHpiMOdHbrvRH Ef4QqC1K6rkfawFygdOkqcxF2L2eFfIIT/UpklrxB0MwWLgcOtP/frQ4xghiuJwfT1vo OFnn+ivfLyqIQF7IYFJkad4ZOetE229VC31fdZAazGVxtT4yv9LjsyDi4vBSJg4uueUp lplQ== X-Gm-Message-State: APf1xPC5G1aNGx6VkRt7ycxWMU1D9DpNgV7IzuR6aixnnImrozxuRwl8 QONoW7oLJaEpjxuCPHk/MPcMGw== X-Google-Smtp-Source: AH8x225boIY8TmrqrdxcICmR5E7lUQF9degdL/D2MtWMiKduAjfhBkQEWyTwfhTHLiMcduUqrIr/eg== X-Received: by 10.36.91.21 with SMTP id g21mr4510371itb.37.1518429038151; Mon, 12 Feb 2018 01:50:38 -0800 (PST) Received: from ash ([171.232.93.137]) by smtp.gmail.com with ESMTPSA id i63sm6360105itb.31.2018.02.12.01.50.35 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 12 Feb 2018 01:50:37 -0800 (PST) Received: by ash (sSMTP sendmail emulation); Mon, 12 Feb 2018 16:50:33 +0700 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= To: git@vger.kernel.org Cc: Junio C Hamano , Eric Sunshine , kaartic.sivaraam@gmail.com, =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Subject: [PATCH v2 6/7] worktree remove: new command Date: Mon, 12 Feb 2018 16:49:39 +0700 Message-Id: <20180212094940.23834-7-pclouds@gmail.com> X-Mailer: git-send-email 2.16.1.399.g632f88eed1 In-Reply-To: <20180212094940.23834-1-pclouds@gmail.com> References: <20180124095357.19645-1-pclouds@gmail.com> <20180212094940.23834-1-pclouds@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org This command allows to delete a worktree. Like 'move' you cannot remove the main worktree, or one with submodules inside [1]. For deleting $GIT_WORK_TREE, Untracked files or any staged entries are considered precious and therefore prevent removal by default. Ignored files are not precious. When it comes to deleting $GIT_DIR, there's no "clean" check because there should not be any valuable data in there, except: - HEAD reflog. There is nothing we can do about this until somebody steps up and implements the ref graveyard. - Detached HEAD. Technically it can still be recovered. Although it may be nice to warn about orphan commits like 'git checkout' does. [1] We do 'git status' with --ignore-submodules=all for safety anyway. But this needs a closer look by submodule people before we can allow deletion. For example, if a submodule is totally clean, but its repo not absorbed to the main .git dir, then deleting worktree also deletes the valuable .submodule repo too. Signed-off-by: Nguyễn Thái Ngọc Duy --- Documentation/git-worktree.txt | 21 ++-- builtin/worktree.c | 134 ++++++++++++++++++++++++- contrib/completion/git-completion.bash | 5 +- t/t2028-worktree-move.sh | 30 ++++++ 4 files changed, 179 insertions(+), 11 deletions(-) diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt index e6764ee8e0..d322acbc67 100644 --- a/Documentation/git-worktree.txt +++ b/Documentation/git-worktree.txt @@ -14,6 +14,7 @@ SYNOPSIS 'git worktree lock' [--reason ] 'git worktree move' 'git worktree prune' [-n] [-v] [--expire ] +'git worktree remove' [--force] 'git worktree unlock' DESCRIPTION @@ -85,6 +86,13 @@ prune:: Prune working tree information in $GIT_DIR/worktrees. +remove:: + +Remove a working tree. Only clean working trees (no untracked files +and no modification in tracked files) can be removed. Unclean working +trees or ones with submodules can be removed with `--force`. The main +working tree cannot be removed. + unlock:: Unlock a working tree, allowing it to be pruned, moved or deleted. @@ -94,9 +102,10 @@ OPTIONS -f:: --force:: - By default, `add` refuses to create a new working tree when `` is a branch name and - is already checked out by another working tree. This option overrides - that safeguard. + By default, `add` refuses to create a new working tree when + `` is a branch name and is already checked out by + another working tree and `remove` refuses to remove an unclean + working tree. This option overrides that safeguard. -b :: -B :: @@ -278,12 +287,6 @@ Multiple checkout in general is still experimental, and the support for submodules is incomplete. It is NOT recommended to make multiple checkouts of a superproject. -git-worktree could provide more automation for tasks currently -performed manually, such as: - -- `remove` to remove a linked working tree and its administrative files (and - warn if the working tree is dirty) - GIT --- Part of the linkgit:git[1] suite diff --git a/builtin/worktree.c b/builtin/worktree.c index 4789cebe11..990e47b315 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -19,6 +19,7 @@ static const char * const worktree_usage[] = { N_("git worktree lock [] "), N_("git worktree move "), N_("git worktree prune []"), + N_("git worktree remove [] "), N_("git worktree unlock "), NULL }; @@ -624,7 +625,7 @@ static void validate_no_submodules(const struct worktree *wt) discard_index(&istate); if (found_submodules) - die(_("working trees containing submodules cannot be moved")); + die(_("working trees containing submodules cannot be moved or removed")); } static int move_worktree(int ac, const char **av, const char *prefix) @@ -688,6 +689,135 @@ static int move_worktree(int ac, const char **av, const char *prefix) return 0; } +/* + * Note, "git status --porcelain" is used to determine if it's safe to + * delete a whole worktree. "git status" does not ignore user + * configuration, so if a normal "git status" shows "clean" for the + * user, then it's ok to remove it. + * + * This assumption may be a bad one. We may want to ignore + * (potentially bad) user settings and only delete a worktree when + * it's absolutely safe to do so from _our_ point of view because we + * know better. + */ +static void check_clean_worktree(struct worktree *wt, + const char *original_path) +{ + struct argv_array child_env = ARGV_ARRAY_INIT; + struct child_process cp; + char buf[1]; + int ret; + + /* + * Until we sort this out, all submodules are "dirty" and + * will abort this function. + */ + validate_no_submodules(wt); + + argv_array_pushf(&child_env, "%s=%s/.git", + GIT_DIR_ENVIRONMENT, wt->path); + argv_array_pushf(&child_env, "%s=%s", + GIT_WORK_TREE_ENVIRONMENT, wt->path); + memset(&cp, 0, sizeof(cp)); + argv_array_pushl(&cp.args, "status", + "--porcelain", "--ignore-submodules=none", + NULL); + cp.env = child_env.argv; + cp.git_cmd = 1; + cp.dir = wt->path; + cp.out = -1; + ret = start_command(&cp); + if (ret) + die_errno(_("failed to run 'git status' on '%s'"), + original_path); + ret = xread(cp.out, buf, sizeof(buf)); + if (ret) + die(_("'%s' is dirty, use --force to delete it"), + original_path); + close(cp.out); + ret = finish_command(&cp); + if (ret) + die_errno(_("failed to run 'git status' on '%s', code %d"), + original_path, ret); +} + +static int delete_git_work_tree(struct worktree *wt) +{ + struct strbuf sb = STRBUF_INIT; + int ret = 0; + + strbuf_addstr(&sb, wt->path); + if (remove_dir_recursively(&sb, 0)) { + error_errno(_("failed to delete '%s'"), sb.buf); + ret = -1; + } + strbuf_release(&sb); + return ret; +} + +static int delete_git_dir(struct worktree *wt) +{ + struct strbuf sb = STRBUF_INIT; + int ret = 0; + + strbuf_addstr(&sb, git_common_path("worktrees/%s", wt->id)); + if (remove_dir_recursively(&sb, 0)) { + error_errno(_("failed to delete '%s'"), sb.buf); + ret = -1; + } + strbuf_release(&sb); + return ret; +} + +static int remove_worktree(int ac, const char **av, const char *prefix) +{ + int force = 0; + struct option options[] = { + OPT_BOOL(0, "force", &force, + N_("force removing even if the worktree is dirty")), + OPT_END() + }; + struct worktree **worktrees, *wt; + struct strbuf errmsg = STRBUF_INIT; + const char *reason; + int ret = 0; + + ac = parse_options(ac, av, prefix, options, worktree_usage, 0); + if (ac != 1) + usage_with_options(worktree_usage, options); + + 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 remove a locked working tree, lock reason: %s"), + reason); + die(_("cannot remove a locked working tree")); + } + if (validate_worktree(wt, &errmsg)) + die(_("validation failed, cannot remove working tree: %s"), + errmsg.buf); + strbuf_release(&errmsg); + + if (!force) + check_clean_worktree(wt, av[0]); + + ret |= delete_git_work_tree(wt); + /* + * continue on even if ret is non-zero, there's no going back + * from here. + */ + ret |= delete_git_dir(wt); + + free_worktrees(worktrees); + return ret; +} + int cmd_worktree(int ac, const char **av, const char *prefix) { struct option options[] = { @@ -712,5 +842,7 @@ int cmd_worktree(int ac, const char **av, const char *prefix) return unlock_worktree(ac - 1, av + 1, prefix); if (!strcmp(av[1], "move")) return move_worktree(ac - 1, av + 1, prefix); + if (!strcmp(av[1], "remove")) + return remove_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 b87d387686..ff4a39631e 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 move prune unlock" + local subcommands="add list lock move prune remove unlock" local subcommand="$(__git_find_on_cmdline "$subcommands")" if [ -z "$subcommand" ]; then __gitcomp "$subcommands" @@ -3105,6 +3105,9 @@ _git_worktree () prune,--*) __gitcomp "--dry-run --expire --verbose" ;; + remove,--*) + __gitcomp "--force" + ;; *) ;; esac diff --git a/t/t2028-worktree-move.sh b/t/t2028-worktree-move.sh index deb486cd8e..4718c4552f 100755 --- a/t/t2028-worktree-move.sh +++ b/t/t2028-worktree-move.sh @@ -96,4 +96,34 @@ test_expect_success 'move worktree to another dir' ' test_cmp expected2 actual2 ' +test_expect_success 'remove main worktree' ' + test_must_fail git worktree remove . +' + +test_expect_success 'move some-dir/destination back' ' + git worktree move some-dir/destination destination +' + +test_expect_success 'remove locked worktree' ' + git worktree lock destination && + test_when_finished "git worktree unlock destination" && + test_must_fail git worktree remove destination +' + +test_expect_success 'remove worktree with dirty tracked file' ' + echo dirty >>destination/init.t && + test_when_finished "git -C destination checkout init.t" && + test_must_fail git worktree remove destination +' + +test_expect_success 'remove worktree with untracked file' ' + : >destination/untracked && + test_must_fail git worktree remove destination +' + +test_expect_success 'force remove worktree with untracked file' ' + git worktree remove --force destination && + test_path_is_missing destination +' + test_done -- 2.16.1.399.g632f88eed1