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From: "Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: me@ttaylorr.com, peff@peff.net, newren@gmail.com,
	Derrick Stolee <dstolee@microsoft.com>,
	Derrick Stolee <dstolee@microsoft.com>
Subject: [PATCH 5/8] sparse-checkout: detect short patterns
Date: Tue, 14 Jan 2020 19:25:59 +0000	[thread overview]
Message-ID: <9be49908fd85e27d49c1c23ec6928785eabd7f65.1579029963.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.513.git.1579029962.gitgitgadget@gmail.com>

From: Derrick Stolee <dstolee@microsoft.com>

In cone mode, the shortest pattern the sparse-checkout command will
write into the sparse-checkout file is "/*". This is handled carefully
in add_pattern_to_hashsets(), so warn if any other pattern is this
short. This will assist future pattern checks by allowing us to assume
there are at least three characters in the pattern.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 dir.c                              | 3 ++-
 t/t1091-sparse-checkout-builtin.sh | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/dir.c b/dir.c
index f8e350dda2..1c96ddf5e3 100644
--- a/dir.c
+++ b/dir.c
@@ -651,7 +651,8 @@ static void add_pattern_to_hashsets(struct pattern_list *pl, struct path_pattern
 		return;
 	}
 
-	if (strstr(given->pattern, "**")) {
+	if (given->patternlen <= 2 ||
+	    strstr(given->pattern, "**")) {
 		/* Not a cone pattern. */
 		pl->use_cone_patterns = 0;
 		warning(_("unrecognized pattern: '%s'"), given->pattern);
diff --git a/t/t1091-sparse-checkout-builtin.sh b/t/t1091-sparse-checkout-builtin.sh
index e532a52f89..974a4fec8f 100755
--- a/t/t1091-sparse-checkout-builtin.sh
+++ b/t/t1091-sparse-checkout-builtin.sh
@@ -339,4 +339,13 @@ test_expect_success 'pattern-checks: /A/**/B/' '
 	check_files repo/deep/deeper1 "deepest"
 '
 
+test_expect_success 'pattern-checks: too short' '
+	cat >repo/.git/info/sparse-checkout <<-\EOF &&
+	/*
+	!/*/
+	/a
+	EOF
+	check_read_tree_errors repo "a" "disabling cone pattern matching"
+'
+
 test_done
-- 
gitgitgadget


  parent reply	other threads:[~2020-01-14 19:26 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-14 19:25 [PATCH 0/8] Harden the sparse-checkout builtin Derrick Stolee via GitGitGadget
2020-01-14 19:25 ` [PATCH 1/8] t1091: use check_files to reduce boilerplate Derrick Stolee via GitGitGadget
2020-01-16 21:40   ` Junio C Hamano
2020-01-14 19:25 ` [PATCH 2/8] sparse-checkout: create leading directories Derrick Stolee via GitGitGadget
2020-01-16 21:46   ` Junio C Hamano
2020-01-14 19:25 ` [PATCH 3/8] clone: fix --sparse option with URLs Derrick Stolee via GitGitGadget
2020-01-14 19:30   ` Taylor Blau
2020-01-14 19:25 ` [PATCH 4/8] sparse-checkout: cone mode does not recognize "**" Derrick Stolee via GitGitGadget
2020-01-14 21:16   ` Jeff King
2020-01-14 19:25 ` Derrick Stolee via GitGitGadget [this message]
2020-01-14 19:26 ` [PATCH 6/8] sparse-checkout: warn on incorrect '*' in patterns Derrick Stolee via GitGitGadget
2020-01-14 19:26 ` [PATCH 7/8] sparse-checkout: properly match escaped characters Derrick Stolee via GitGitGadget
2020-01-14 21:21   ` Jeff King
2020-01-14 22:08     ` Derrick Stolee
2020-01-14 19:26 ` [PATCH 8/8] sparse-checkout: write escaped patterns in cone mode Derrick Stolee via GitGitGadget
2020-01-14 21:25   ` Jeff King
2020-01-14 22:11     ` Derrick Stolee
2020-01-14 22:48       ` Jeff King
2020-01-24 21:10         ` Derrick Stolee
2020-01-24 21:42           ` Jeff King
2020-01-28 15:03             ` Derrick Stolee
2020-01-14 19:34 ` [PATCH 0/8] Harden the sparse-checkout builtin Taylor Blau
2020-01-14 19:44   ` Derrick Stolee
2020-01-14 21:31     ` Jeff King
2020-01-15 19:16 ` Junio C Hamano
2020-01-15 20:32   ` Derrick Stolee
2020-01-24 21:19 ` [PATCH v2 00/12] " Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 01/12] t1091: use check_files to reduce boilerplate Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 02/12] t1091: improve here-docs Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 03/12] sparse-checkout: create leading directories Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 04/12] clone: fix --sparse option with URLs Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 05/12] sparse-checkout: fix documentation typo for core.sparseCheckoutCone Jeff King via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 06/12] sparse-checkout: cone mode does not recognize "**" Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 07/12] sparse-checkout: detect short patterns Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 08/12] sparse-checkout: warn on incorrect '*' in patterns Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 09/12] sparse-checkout: properly match escaped characters Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 10/12] sparse-checkout: write escaped patterns in cone mode Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 11/12] sparse-checkout: use C-style quotes in 'list' subcommand Derrick Stolee via GitGitGadget
2020-01-24 21:19   ` [PATCH v2 12/12] sparse-checkout: improve docs around 'set' in cone mode Derrick Stolee via GitGitGadget
2020-01-28 18:26   ` [PATCH v3 00/12] Harden the sparse-checkout builtin Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 01/12] t1091: use check_files to reduce boilerplate Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 02/12] t1091: improve here-docs Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 03/12] sparse-checkout: create leading directories Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 04/12] clone: fix --sparse option with URLs Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 05/12] sparse-checkout: fix documentation typo for core.sparseCheckoutCone Jeff King via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 06/12] sparse-checkout: cone mode does not recognize "**" Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 07/12] sparse-checkout: detect short patterns Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 08/12] sparse-checkout: warn on incorrect '*' in patterns Derrick Stolee via GitGitGadget
2020-01-28 18:26     ` [PATCH v3 09/12] sparse-checkout: properly match escaped characters Derrick Stolee via GitGitGadget
2020-01-29 10:03       ` Jeff King
2020-01-29 13:58         ` Derrick Stolee
2020-01-29 14:04           ` Derrick Stolee
2020-01-28 18:26     ` [PATCH v3 10/12] sparse-checkout: write escaped patterns in cone mode Derrick Stolee via GitGitGadget
2020-01-29 10:17       ` Jeff King
2020-01-29 10:33         ` Jeff King
2020-01-29 14:16           ` Derrick Stolee
2020-01-29 14:39             ` Derrick Stolee
2020-01-30  7:29             ` Jeff King
2020-01-30 15:01               ` Derrick Stolee
2020-01-28 18:26     ` [PATCH v3 11/12] sparse-checkout: use C-style quotes in 'list' subcommand Derrick Stolee via GitGitGadget
2020-01-29 10:23       ` Jeff King
2020-01-28 18:26     ` [PATCH v3 12/12] sparse-checkout: improve docs around 'set' in cone mode Derrick Stolee via GitGitGadget
2020-01-31 20:16     ` [PATCH v4 00/15] Harden the sparse-checkout builtin Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 01/15] t1091: use check_files to reduce boilerplate Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 02/15] t1091: improve here-docs Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 03/15] sparse-checkout: create leading directories Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 04/15] clone: fix --sparse option with URLs Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 05/15] sparse-checkout: fix documentation typo for core.sparseCheckoutCone Jeff King via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 06/15] sparse-checkout: cone mode does not recognize "**" Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 07/15] sparse-checkout: detect short patterns Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 08/15] sparse-checkout: warn on globs in cone patterns Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 09/15] sparse-checkout: properly match escaped characters Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 10/15] sparse-checkout: write escaped patterns in cone mode Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 11/15] sparse-checkout: unquote C-style strings over --stdin Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 12/15] sparse-checkout: use C-style quotes in 'list' subcommand Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 13/15] sparse-checkout: escape all glob characters on write Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 14/15] sparse-checkout: improve docs around 'set' in cone mode Derrick Stolee via GitGitGadget
2020-01-31 20:16       ` [PATCH v4 15/15] sparse-checkout: fix cone mode behavior mismatch Derrick Stolee via GitGitGadget
2020-01-31 20:36       ` [PATCH v4 00/15] Harden the sparse-checkout builtin Elijah Newren
2020-02-03 14:09         ` Derrick Stolee
2020-02-08 23:32           ` Taylor Blau
2020-02-09 17:27             ` Junio C Hamano

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