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Re: Possible bug with git restore

From
René Scharfe <l.s.r@web.de>
Date
Aug 20, 2020, 17:48 UTC
Message-ID
<c3f0d51a-d0e3-ed0a-c9ed-da092704da5c@web.de>
In-Reply-To
<20200820134013.GA2526241@coredump.intra.peff.net>
Am 20.08.20 um 15:40 schrieb Jeff King:
> On Thu, Aug 20, 2020 at 03:59:00PM +0300, Sergii Shkarnikov wrote:
>
>> Here is a script to reproduce the issue that works for me in Git Bash:
That's very helpful!
>   - shouldn't that wildcard pathspec match those files? I've confirmed
>     that the glob characters make it into Git's pathspec machinery, and
>     since it doesn't have slashes, I think we'd match a basename (and
>     certainly "git ls-files *test_file.*" does what I expect).

No, because restore doesn't interpret pathspecs recursively. I don't know why that causes files to disappear, though. But here's a fix.

No sign-off because I don't understand why pathspec recursiveness is a thing that can be turned off -- I'd expect pathspec syntax to be consistent for all commands. So there might be a good reason why it was not enabled for restore (and switch and checkout).

The flag was introduced in bc96cc87dbb (tree_entry_interesting(): support depth limit, 2010-12-15), but I still don't fully get it. Anyway, here's what I got -- feel free to incorporate it in a real patch:

René
---
 builtin/checkout.c               |  4 ++++
 t/t2072-restore-pathspec-file.sh | 19 ++++++++++++++++---
 2 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 28371954912..8d2dc0cfa48 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -66,6 +66,7 @@ struct checkout_opts {
 	int can_switch_when_in_progress;
 	int orphan_from_empty_tree;
 	int empty_pathspec_ok;
+	int recursive_pathspec;
 	int checkout_index;
 	int checkout_worktree;
 	const char *ignore_unmerged_opt;
@@ -1707,6 +1708,8 @@ static int checkout_main(int argc, const char **argv, const char *prefix,
 		die(_("--pathspec-file-nul requires --pathspec-from-file"));
 	}

+	opts->pathspec.recursive = opts->recursive_pathspec;
+
 	if (opts->pathspec.nr) {
 		if (1 < !!opts->writeout_stage + !!opts->force + !!opts->merge)
 			die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\n"
@@ -1852,6 +1855,7 @@ int cmd_restore(int argc, const char **argv, const char *prefix)
 	opts.checkout_index = -1;    /* default off */
 	opts.checkout_worktree = -2; /* default on */
 	opts.ignore_unmerged_opt = "--ignore-unmerged";
+	opts.recursive_pathspec = 1;

 	options = parse_options_dup(restore_options);
 	options = add_common_options(&opts, options);
diff --git a/t/t2072-restore-pathspec-file.sh b/t/t2072-restore-pathspec-file.sh
index 0d47946e8a9..da976665095 100755
--- a/t/t2072-restore-pathspec-file.sh
+++ b/t/t2072-restore-pathspec-file.sh
@@ -9,18 +9,21 @@ test_tick
 test_expect_success setup '
 	test_commit file0 &&

+	mkdir dir1 &&
+	echo 1 >dir1/file &&
 	echo 1 >fileA.t &&
 	echo 1 >fileB.t &&
 	echo 1 >fileC.t &&
 	echo 1 >fileD.t &&
-	git add fileA.t fileB.t fileC.t fileD.t &&
+	git add dir1 fileA.t fileB.t fileC.t fileD.t &&
 	git commit -m "files 1" &&

+	echo 2 >dir1/file &&
 	echo 2 >fileA.t &&
 	echo 2 >fileB.t &&
 	echo 2 >fileC.t &&
 	echo 2 >fileD.t &&
-	git add fileA.t fileB.t fileC.t fileD.t &&
+	git add dir1 fileA.t fileB.t fileC.t fileD.t &&
 	git commit -m "files 2" &&

 	git tag checkpoint
@@ -31,7 +34,7 @@ restore_checkpoint () {
 }

 verify_expect () {
-	git status --porcelain --untracked-files=no -- fileA.t fileB.t fileC.t fileD.t >actual &&
+	git status --porcelain --untracked-files=no -- dir1 fileA.t fileB.t fileC.t fileD.t >actual &&
 	test_cmp expect actual
 }

@@ -161,4 +164,14 @@ test_expect_success 'error conditions' '
 	test_i18ngrep -e "you must specify path(s) to restore" err
 '

+test_expect_success 'pathspec matches file in subdirectory' '
+	restore_checkpoint &&
+
+	echo "*file" | git restore --pathspec-from-file=- --source=HEAD^1 &&
+	cat >expect <<-\EOF &&
+	 M dir1/file
+	EOF
+	verify_expect
+'
+
 test_done
--
2.28.0
Previous: Jeff KingNext: Jeff King
Message 5 of 11 in “Possible bug with git restore”
  1. Sergii ShkarnikovAug 12, 2020
  2. Eric SunshineAug 14, 2020
  3. Sergii ShkarnikovAug 20, 2020
  4. Jeff KingAug 20, 2020
  5. René ScharfeAug 20, 2020
  6. Jeff KingAug 20, 2020
  7. checkout, restore: make pathspec recursiveRené Scharfe, Aug 22, 2020
  8. Jeff KingAug 24, 2020
  9. René ScharfeAug 22, 2020
  10. Jeff KingAug 24, 2020
  11. Junio C HamanoAug 22, 2020

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