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From: "Σταύρος Ντέντος" <stdedos@gmail.com>
To: git <git@vger.kernel.org>
Cc: "Σταύρος Ντέντος" <stdedos+git@gmail.com>,
	"Junio C Hamano" <gitster@pobox.com>,
	"Bagas Sanjaya" <bagasdotme@gmail.com>,
	"Stavros Ntentos" <133706+stdedos@users.noreply.github.com>
Subject: [RFC PATCH v1 1/2] pathspec: warn: long and short forms are incompatible
Date: Fri, 26 Mar 2021 04:40:04 +0200	[thread overview]
Message-ID: <20210326024005.26962-2-stdedos+git@gmail.com> (raw)
In-Reply-To: <20210326024005.26962-1-stdedos+git@gmail.com>

From: Stavros Ntentos <133706+stdedos@users.noreply.github.com>

Namely, `!` and any other long magic form (e.g. `glob`)
cannot be combined to one entry.

Issue a warning when such thing happens, and hint to the solution.

Signed-off-by: Stavros Ntentos <133706+stdedos@users.noreply.github.com>
---
 pathspec.c                  | 19 +++++++++++++++++++
 pathspec.h                  |  1 +
 t/t6132-pathspec-exclude.sh | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 53 insertions(+)

diff --git a/pathspec.c b/pathspec.c
index 7a229d8d22..374c529569 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -1,3 +1,5 @@
+#include <stdio.h>
+#include <string.h>
 #include "cache.h"
 #include "config.h"
 #include "dir.h"
@@ -586,6 +588,8 @@ void parse_pathspec(struct pathspec *pathspec,
 	for (i = 0; i < n; i++) {
 		entry = argv[i];
 
+		check_mishandled_exclude(entry);
+
 		init_pathspec_item(item + i, flags, prefix, prefixlen, entry);
 
 		if (item[i].magic & PATHSPEC_EXCLUDE)
@@ -739,3 +743,18 @@ int match_pathspec_attrs(const struct index_state *istate,
 
 	return 1;
 }
+
+void check_mishandled_exclude(const char *entry) {
+	size_t entry_len = strlen(entry);
+	char flags[entry_len];
+	char path[entry_len];
+
+	if (sscanf(entry, ":!(%4096[^)])%4096s", &flags, &path) != 2) {
+		return;
+	}
+	if (count_slashes(flags) > 0) {
+		return;
+	}
+
+	warning(_("Pathspec provided matches `:!(...)`\n\tDid you mean `:(exclude,...)`?"));
+}
diff --git a/pathspec.h b/pathspec.h
index 454ce364fa..879d4e82c6 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -157,5 +157,6 @@ char *find_pathspecs_matching_against_index(const struct pathspec *pathspec,
 int match_pathspec_attrs(const struct index_state *istate,
 			 const char *name, int namelen,
 			 const struct pathspec_item *item);
+void check_mishandled_exclude(const char* pathspec_entry);
 
 #endif /* PATHSPEC_H */
diff --git a/t/t6132-pathspec-exclude.sh b/t/t6132-pathspec-exclude.sh
index 30328b87f0..b32ddb2a56 100755
--- a/t/t6132-pathspec-exclude.sh
+++ b/t/t6132-pathspec-exclude.sh
@@ -244,4 +244,37 @@ test_expect_success 'grep --untracked PATTERN :(exclude)*FILE' '
 	test_cmp expect-grep actual-grep
 '
 
+cat > expected_warn <<"EOF"
+Pathspec provided matches `:!(...)`
+EOF
+test_expect_success 'warn pathspec :!(...) skips the parenthesized magics' '
+	git log --oneline --format=%s -- '"'"':!(glob)**/file'"'"' >actual 2>warn &&
+	cat <<EOF >expect &&
+sub2/file
+sub/sub/sub/file
+sub/file2
+sub/sub/file
+sub/file
+file
+EOF
+	cat actual &&
+	cat warn &&
+	test_cmp expect actual &&
+	grep -Ff expected_warn warn
+'
+
+test_expect_success 'do not warn that pathspec :!(...) skips the parenthesized magics (if parenthesis would not be part of the magic)' '
+	git log --oneline --format=%s -- '"'"':!(gl/ob)/file'"'"' >actual 2>warn &&
+	cat <<EOF >expect &&
+sub2/file
+sub/sub/sub/file
+sub/file2
+sub/sub/file
+sub/file
+file
+EOF
+	test_cmp expect actual &&
+	! grep -Ff expected_warn warn
+'
+
 test_done
-- 
2.31.0


  reply	other threads:[~2021-03-26  2:41 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-26 20:44 Pathspec does not accept / does not warn for specific pathspecs Σταύρος Ντέντος
2021-02-26 23:27 ` Junio C Hamano
2021-03-25 10:22   ` [PATCH v1 0/1] pathspec: warn for a no-glob entry that contains `**` Σταύρος Ντέντος
2021-03-25 10:22     ` [PATCH v1 1/1] " Σταύρος Ντέντος
2021-03-25 11:00       ` Bagas Sanjaya
2021-03-25 11:04       ` Bagas Sanjaya
2021-03-25 16:09         ` Stavros Ntentos
2021-03-25 20:09           ` Junio C Hamano
2021-03-25 23:36   ` [PATCH v2 0/1] " Σταύρος Ντέντος
2021-03-25 23:36   ` [PATCH v2 1/1] " Σταύρος Ντέντος
2021-03-26  0:41     ` Junio C Hamano
2021-03-26  1:32       ` Eric Sunshine
2021-03-26  3:02         ` Junio C Hamano
2021-03-26  5:13           ` Jeff King
2021-03-26 15:43             ` Stavros Ntentos
2021-03-26 15:48     ` [PATCH v3 1/2] " Stavros Ntentos
2021-03-26 15:48       ` [PATCH v3 2/2] pathspec: convert no-glob warn to advice Stavros Ntentos
2021-03-26  2:40   ` [RFC PATCH v1 0/1] pathspec: warn: long and short forms are incompatible Σταύρος Ντέντος
2021-03-26  2:40     ` Σταύρος Ντέντος [this message]
2021-03-26  5:28       ` [RFC PATCH v1 1/2] " Jeff King
2021-03-26 16:16         ` Stavros Ntentos
2021-03-27  9:41           ` Jeff King
2021-03-27 18:36             ` Junio C Hamano
2021-03-28 15:44               ` Stavros Ntentos
2021-03-26  2:40     ` [RFC PATCH v1 2/2] fixup! " Σταύρος Ντέντος
2021-03-26  8:14       ` Bagas Sanjaya
2021-03-26 15:55         ` Stavros Ntentos
2021-03-28 15:26       ` [RFC PATCH v1 3/3] squash! " Stavros Ntentos
2021-03-26  2:44   ` [RFC PATCH v1 0/1] " Σταύρος Ντέντος
2021-03-26  2:44     ` [RFC PATCH v1] " Σταύρος Ντέντος
2021-04-03 12:26     ` [PATCH v3] pathspec: advice: " Stavros Ntentos
2021-04-04  7:19       ` Junio C Hamano
2021-04-11 15:07         ` Σταύρος Ντέντος
2021-04-11 19:10           ` Junio C Hamano
2021-04-11 20:53             ` Σταύρος Ντέντος
2021-03-28 15:45   ` [PATCH v2] " Stavros Ntentos
2021-03-28 19:12     ` Junio C Hamano
2021-03-30 17:37       ` Junio C Hamano
2021-03-30 19:05       ` Stavros Ntentos
2021-03-30 19:17         ` Stavros Ntentos
2021-03-30 20:36         ` Junio C Hamano
2021-04-03 12:48   ` [PATCH v3] " Stavros Ntentos
2021-04-03 12:51   ` [PATCH v4] " Stavros Ntentos

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