From 19d8fe7da650970e5c18681f98d258fd924ecf9b Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Fri, 6 Dec 2024 14:24:48 +0100
Subject: [PATCH] Makefile: extract script to generate gitweb.js

Similar to the preceding commit, also extract the script to generate the
"gitweb.js" file. While the logic itself is trivial, it helps us avoid
duplication of logic across build systems and ensures that the build
systems will remain in sync with each other in case the logic ever needs
to change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 gitweb/Makefile              |  3 ++-
 gitweb/generate-gitweb-js.sh | 12 ++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100755 gitweb/generate-gitweb-js.sh

diff --git a/gitweb/Makefile b/gitweb/Makefile
index 16a2ef2d1e..d5748e9359 100644
--- a/gitweb/Makefile
+++ b/gitweb/Makefile
@@ -115,9 +115,10 @@ $(MAK_DIR_GITWEB)gitweb.cgi: $(MAK_DIR_GITWEB)gitweb.perl
 	$(MAK_DIR_GITWEB)generate-gitweb-cgi.sh $(MAK_DIR_GITWEB)/GITWEB-BUILD-OPTIONS ./GIT-VERSION-FILE $< $@+ && \
 	mv $@+ $@
 
+$(MAK_DIR_GITWEB)static/gitweb.js: $(MAK_DIR_GITWEB)generate-gitweb-js.sh
 $(MAK_DIR_GITWEB)static/gitweb.js: $(addprefix $(MAK_DIR_GITWEB),$(GITWEB_JSLIB_FILES))
 	$(QUIET_GEN)$(RM) $@ $@+ && \
-	cat $^ >$@+ && \
+	$(MAK_DIR_GITWEB)generate-gitweb-js.sh $@+ $^ && \
 	mv $@+ $@
 
 ### Installation rules
diff --git a/gitweb/generate-gitweb-js.sh b/gitweb/generate-gitweb-js.sh
new file mode 100755
index 0000000000..01bb22b04b
--- /dev/null
+++ b/gitweb/generate-gitweb-js.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+if test "$#" -lt 2
+then
+	echo >&2 "USAGE: $0 <OUTPUT> <INPUT>..."
+	exit 1
+fi
+
+OUTPUT="$1"
+shift
+
+cat "$@" >"$OUTPUT"