Re: [PATCH v3 10/12] sparse-checkout: write escaped patterns in cone mode

[Derrick Stolee <stolee@gmail.com>]

On 1/30/2020 2:29 AM, Jeff King wrote:
> On Wed, Jan 29, 2020 at 09:16:11AM -0500, Derrick Stolee wrote:
> 
>> I've applied the smaller comments and am now investigating the right
>> thing to do with other is_glob_special() characters. There is a small
>> chance that I can replace any "c == '*' || c == '\'" with is_glob_special(),
>> but we shall see. At the very least, I'll need to expand my tests.
> 
> Yeah, that's all I'd expect to need. You mentioned earlier about how
> ls-tree would output them, but I don't think it would matter. Now that
> you're using unquote_c_style(), you'll get the literal filenames no
> matter which way ls-tree decides to quote them (and I don't think it
> would quote '?', just as it wouldn't '*', because those are not
> syntactically significant in its output).

Yes, even this case for 'git ls-tree' gets covered in the final
version of the test:

test_expect_success BSLASHPSPEC 'pattern-checks: escaped characters' '
	git clone repo escaped &&
	TREEOID=$(git -C escaped rev-parse HEAD:folder1) &&
	NEWTREE=$(git -C escaped mktree <<-EOF
	$(git -C escaped ls-tree HEAD)
	040000 tree $TREEOID	zbad\\dir
	040000 tree $TREEOID	zdoes*exist
	040000 tree $TREEOID	zglob[!a]?
	EOF
	) &&
	COMMIT=$(git -C escaped commit-tree $NEWTREE -p HEAD) &&
	git -C escaped reset --hard $COMMIT &&
	check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" zglob[!a]? &&
	git -C escaped sparse-checkout init --cone &&
	git -C escaped sparse-checkout set zbad\\dir/bogus "zdoes*not*exist" "zdoes*exist" "zglob[!a]?" &&
	cat >expect <<-\EOF &&
	/*
	!/*/
	/zbad\\dir/
	!/zbad\\dir/*/
	/zbad\\dir/bogus/
	/zdoes\*exist/
	/zdoes\*not\*exist/
	/zglob\[!a]\?/
	EOF
	test_cmp expect escaped/.git/info/sparse-checkout &&
	check_read_tree_errors escaped "a zbad\\dir zdoes*exist zglob[!a]?" &&
	git -C escaped ls-tree -d --name-only HEAD >list-expect &&
	git -C escaped sparse-checkout set --stdin <list-expect &&
	cat >expect <<-\EOF &&
	/*
	!/*/
	/deep/
	/folder1/
	/folder2/
	/zbad\\dir/
	/zdoes\*exist/
	/zglob\[!a]\?/
	EOF
	test_cmp expect escaped/.git/info/sparse-checkout &&
	check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" zglob[!a]? &&
	git -C escaped sparse-checkout list >list-actual &&
	test_cmp list-expect list-actual
'

Thanks,
-Stolee