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From: "D. Ben Knoble" <ben.knoble+github@gmail•com>
To: git@vger•kernel.org
Cc: "D. Ben Knoble" <ben.knoble+github@gmail•com>,
	Phillip Wood <phillip.wood@dunelm•org.uk>,
	Patrick Steinhardt <ps@pks•im>,
	Junio C Hamano <gitster@pobox•com>,
	Evan Martin <evan.martin@gmail•com>
Subject: [PATCH v3] meson: regenerate config-list.h when Documentation changes
Date: Wed, 11 Feb 2026 18:51:02 -0500	[thread overview]
Message-ID: <0a344f1f3ee4a5d95c6f46df030b9936db4354a1.1770853297.git.ben.knoble+github@gmail.com> (raw)
In-Reply-To: <c9ae171eed6bd5b0fa6671b10a5ad0da024f36d0.1770649805.git.ben.knoble+github@gmail.com>

The Meson-based build doesn't know when to rebuild config-list.h, so the
header is sometimes stale.

For example, an old build directory might have config-list.h from before
4173df5187 (submodule: introduce extensions.submodulePathConfig,
2026-01-12), which added submodule.<name>.gitdir to the list. Without
it, t9902-completion.sh fails. Regenerating the config-list.h artifact
from sources fixes the artifact and the test.

Teach the meson build to depend on the Documentation files that
generate-configlist.sh reads by having it an additional output as a list
of dependency files, since Meson does not have (or want) builtin support
for globbing like Make.

Helped-by: Patrick Steinhardt <ps@pks•im>
Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail•com>
---

Notes (benknoble/commits):
    Changes from v2 (<c9ae171eed6bd5b0fa6671b10a5ad0da024f36d0.1770649805.git.ben.knoble+github@gmail•com>):
    
    • Pick up (and tweak) Patrick's depfile proposal
    • Include the script itself as a dependency
    • Escape output paths (spaces, octothorpes, and backslashes) for Ninja
    
    I'm not 100% sure I've actually done the escaping correctly, though,
    since Ninja's source says that a space preceded by 2N backslashes
    represents 2N backslashes at the end of a filename, and
    
        λ printf '%s\n' 'foo\' | sed 's/[# \\]/\\&/g' | xxd
        00000000: 666f 6f5c 5c0a                           foo\\.
    
    So would they interpret that as the filename 'foo\\' instead of 'foo\' ?
    (Or, no because the 2N slashes aren't followed by a SP, but a NL?)

 generate-configlist.sh | 10 +++++++++-
 meson.build            |  4 +++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/generate-configlist.sh b/generate-configlist.sh
index 75c39ade20..091efd4564 100755
--- a/generate-configlist.sh
+++ b/generate-configlist.sh
@@ -2,10 +2,11 @@
 
 SOURCE_DIR="$1"
 OUTPUT="$2"
+DEPFILE="$3"
 
 if test -z "$SOURCE_DIR" || ! test -d "$SOURCE_DIR" || test -z "$OUTPUT"
 then
-	echo >&2 "USAGE: $0 <SOURCE_DIR> <OUTPUT>"
+	echo >&2 "USAGE: $0 <SOURCE_DIR> <OUTPUT> [<DEPFILE>]"
 	exit 1
 fi
 
@@ -36,3 +37,10 @@ print_config_list () {
 	echo
 	print_config_list
 } >"$OUTPUT"
+
+if test -n "$DEPFILE"
+then
+	printf "$OUTPUT: %s\n" "$0" "$SOURCE_DIR"/Documentation/*config.adoc \
+	    "$SOURCE_DIR"/Documentation/config/*.adoc |
+	    sed 's/[# \\]/\\&/g' >"$DEPFILE"
+fi
diff --git a/meson.build b/meson.build
index 3a1d12caa4..fb5d7367f5 100644
--- a/meson.build
+++ b/meson.build
@@ -720,11 +720,13 @@ endif
 
 builtin_sources += custom_target(
   output: 'config-list.h',
+  depfile: 'config-list.h.d',
   command: [
     shell,
-    meson.current_source_dir() + '/generate-configlist.sh',
+    meson.current_source_dir() / 'generate-configlist.sh',
     meson.current_source_dir(),
     '@OUTPUT@',
+    '@DEPFILE@',
   ],
   env: script_environment,
 )

base-commit: 19a08e0c02faf1c5b4efd1add85598cf8390ff7e
prerequisite-patch-id: 364ba1899740b93be5957262d3583348d030e8fa
-- 
2.52.0.rc0.1058.g68d811a4ee.dirty


  reply	other threads:[~2026-02-11 23:51 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-07 21:59 [PATCH] meson: regenerate config-list.h when Documentation changes D. Ben Knoble
2026-02-07 22:38 ` Ben Knoble
2026-02-09 15:19 ` [PATCH v2] " D. Ben Knoble
2026-02-11 23:51   ` D. Ben Knoble [this message]
2026-02-12  8:06     ` [PATCH v3] " Patrick Steinhardt
2026-02-12 10:29     ` Phillip Wood
2026-02-12 14:14       ` Phillip Wood
2026-02-12 15:56     ` Ben Knoble
2026-02-16 22:28     ` [PATCH v4] " D. Ben Knoble
2026-02-17  0:33       ` Ben Knoble
2026-02-17  7:03         ` Patrick Steinhardt
2026-02-17 13:28           ` D. Ben Knoble
2026-02-17  7:02       ` Patrick Steinhardt
2026-02-17 13:28         ` D. Ben Knoble
2026-02-17 20:24           ` Junio C Hamano
2026-02-17  9:20       ` Phillip Wood
2026-02-17 13:38         ` D. Ben Knoble
2026-02-17 15:11           ` Phillip Wood
2026-02-18 14:37       ` [PATCH v5] build: " D. Ben Knoble
2026-02-19 10:19         ` Phillip Wood
2026-02-19 13:40           ` D. Ben Knoble
2026-02-19 13:56         ` Patrick Steinhardt
2026-02-21 13:58           ` D. Ben Knoble
2026-02-19 15:10         ` Marc Branchaud
2026-02-21 13:58           ` D. Ben Knoble
2026-02-21 14:07         ` [PATCH v6] " D. Ben Knoble
2026-02-23  6:37           ` Patrick Steinhardt
2026-02-23  6:55           ` SZEDER Gábor
2026-02-23 21:41             ` Ben Knoble
2026-02-24  9:58               ` Patrick Steinhardt
2026-02-24 11:00                 ` Phillip Wood
2026-02-24 14:12                   ` D. Ben Knoble
2026-02-24 14:39           ` [PATCH v7] " D. Ben Knoble
2026-02-25 18:45             ` Junio C Hamano
2026-02-26  3:20               ` Ben Knoble
2026-02-09 15:25 ` [PATCH] meson: " Patrick Steinhardt
2026-02-09 21:50   ` D. Ben Knoble
2026-02-11  7:42     ` Patrick Steinhardt
2026-02-11  9:44       ` Phillip Wood
2026-02-11 10:57         ` Phillip Wood
2026-02-11 11:00           ` Patrick Steinhardt
2026-02-11 10:58         ` Patrick Steinhardt
2026-02-11 14:05           ` Phillip Wood
2026-02-11 20:15             ` D. Ben Knoble
2026-02-11 19:58       ` D. Ben Knoble
2026-02-12  8:10         ` Patrick Steinhardt

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