From 502be959531b34e2d9283213b7bca51842639240 Mon Sep 17 00:00:00 2001
From: Ben Walton <bwalton@artsci.utoronto.ca>
Date: Sat, 20 Mar 2010 10:48:08 -0400
Subject: [PATCH] Make templates honour SHELL_PATH and PERL_PATH

The hook script templates were hard coded to use /bin/sh and perl.
This patch ensures that they use the same tools specified for the rest
of the suite.

The impetus for the change was noticing that, as shipped, some of the
hooks used shell constructs that wouldn't work under Solaris' /bin/sh
(eg: $(cmd...) substitutions).

Signed-off-by: Ben Walton <bwalton@artsci.utoronto.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Makefile                                   |  2 +-
 templates/Makefile                         | 17 +++++++++++++++--
 templates/hooks--pre-rebase.sample         |  2 +-
 templates/hooks--prepare-commit-msg.sample |  4 ++--
 4 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 7c616f8b0a..86638de159 100644
--- a/Makefile
+++ b/Makefile
@@ -1469,7 +1469,7 @@ endif
 ifndef NO_PYTHON
 	$(QUIET_SUBDIR0)git_remote_helpers $(QUIET_SUBDIR1) PYTHON_PATH='$(PYTHON_PATH_SQ)' prefix='$(prefix_SQ)' all
 endif
-	$(QUIET_SUBDIR0)templates $(QUIET_SUBDIR1)
+	$(QUIET_SUBDIR0)templates $(QUIET_SUBDIR1) SHELL_PATH='$(SHELL_PATH_SQ)' PERL_PATH='$(PERL_PATH_SQ)'
 
 please_set_SHELL_PATH_to_a_more_modern_shell:
 	@$$(:)
diff --git a/templates/Makefile b/templates/Makefile
index 408f0137a8..d22a71a399 100644
--- a/templates/Makefile
+++ b/templates/Makefile
@@ -11,6 +11,16 @@ prefix ?= $(HOME)
 template_instdir ?= $(prefix)/share/git-core/templates
 # DESTDIR=
 
+ifndef SHELL_PATH
+	SHELL_PATH = /bin/sh
+endif
+ifndef PERL_PATH
+	PERL_PATH = perl
+endif
+
+SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
+PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
+
 # Shell quote (do not use $(call) to accommodate ancient setups);
 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
 template_instdir_SQ = $(subst ','\'',$(template_instdir))
@@ -33,8 +43,11 @@ boilerplates.made : $(bpsrc)
 		case "$$boilerplate" in \
 		*--) continue;; \
 		esac && \
-		cp $$boilerplate blt/$$dst && \
-		if test -x "blt/$$dst"; then rx=rx; else rx=r; fi && \
+		sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
+		    -e 's|@SHELL_PATH@|$(SHELL_PATH_SQ)|' \
+		    -e 's|@PERL_PATH@|$(PERL_PATH_SQ)|g' $$boilerplate > \
+			blt/$$dst && \
+		if test -x "$$boilerplate"; then rx=rx; else rx=r; fi && \
 		chmod a+$$rx "blt/$$dst" || exit; \
 	done && \
 	date >$@
diff --git a/templates/hooks--pre-rebase.sample b/templates/hooks--pre-rebase.sample
index be1b06e250..ab1c4c8928 100755
--- a/templates/hooks--pre-rebase.sample
+++ b/templates/hooks--pre-rebase.sample
@@ -65,7 +65,7 @@ then
 	fi
 else
 	not_in_next=`git-rev-list --pretty=oneline ^${publish} "$topic"`
-	perl -e '
+	@PERL_PATH@ -e '
 		my $topic = $ARGV[0];
 		my $msg = "* $topic has commits already merged to public branch:\n";
 		my (%not_in_next) = map {
diff --git a/templates/hooks--prepare-commit-msg.sample b/templates/hooks--prepare-commit-msg.sample
index 365242499d..e8d1754f91 100755
--- a/templates/hooks--prepare-commit-msg.sample
+++ b/templates/hooks--prepare-commit-msg.sample
@@ -22,10 +22,10 @@
 
 case "$2,$3" in
   merge,)
-    perl -i.bak -ne 's/^/# /, s/^# #/#/ if /^Conflicts/ .. /#/; print' "$1" ;;
+    @PERL_PATH@ -i.bak -ne 's/^/# /, s/^# #/#/ if /^Conflicts/ .. /#/; print' "$1" ;;
 
 # ,|template,)
-#   perl -i.bak -pe '
+#   @PERL_PATH@ -i.bak -pe '
 #      print "\n" . `git diff --cached --name-status -r`
 #	 if /^#/ && $first++ == 0' "$1" ;;