From e9e8c638a8d0a586023480f8f24e37f64e480af9 Mon Sep 17 00:00:00 2001
From: Juan RP <xtraeme@gmail.com>
Date: Sat, 8 Mar 2014 11:36:51 +0100
Subject: [PATCH] hooks/prepare-32bit: new variables to improve 32bit pkg
 creation.

- lib32depends: if set, 32bit pkg will use this rather than "depends".
- lib32disabled: if set, no 32bit pkg will be created.
- lib32mode:
  * if unset only files for libraries will be copied.
  * if set to "full" all files will be copied

Still not perfect but should be enough to have skype-32bit.
---
 common/hooks/post-install/06-prepare-32bit.sh | 103 +++++++++++-------
 1 file changed, 66 insertions(+), 37 deletions(-)

diff --git a/common/hooks/post-install/06-prepare-32bit.sh b/common/hooks/post-install/06-prepare-32bit.sh
index 2ab4e3c111d..450bb87767f 100644
--- a/common/hooks/post-install/06-prepare-32bit.sh
+++ b/common/hooks/post-install/06-prepare-32bit.sh
@@ -1,14 +1,21 @@
-# This hook creates a new PKGDESTDIR with 32bit libraries for x86_64.
+# This hook creates a new PKGDESTDIR with 32bit files for x86_64.
+#
+# Variables that can be used in templates:
+#	- lib32depends: if set, 32bit pkg will use this rather than "depends".
+#	- lib32disabled: if set, no 32bit pkg will be created.
+#	- lib32mode:
+#		* if unset only files for libraries will be copied.
+#		* if set to "full" all files will be copied.
 #
 # XXX remaining issues:
-#	- due to ${pkgname} -> ${pkgname}32 renaming, some pkgs have wrong deps
-#	  (noarch pkgs, development pkgs, etc).
+#	- wrong dependencies in some cases.
+#	- no way to specify additional files.
 
 hook() {
 	local destdir32=${XBPS_DESTDIR}/${pkgname}-32bit-${version}
 
-	# By default always enabled unless "lib32_disabled" is set.
-	if [ -n "$lib32_disabled" ]; then
+	# By default always enabled unless "lib32disabled" is set.
+	if [ -n "$lib32disabled" ]; then
 		return
 	fi
 	# This hook will only work when building for x86.
@@ -19,42 +26,49 @@ hook() {
 	if [ -n "$noarch" ]; then
 		return
 	fi
-	# If /usr/lib does not exist don't continue...
-	if [ ! -d ${PKGDESTDIR}/usr/lib ]; then
-		return
+	if [ -z "$lib32mode" ]; then
+		# Library mode, copy only relevant files to new destdir.
+		#
+		# If /usr/lib does not exist don't continue...
+		if [ ! -d ${PKGDESTDIR}/usr/lib ]; then
+			return
+		fi
+		mkdir -p ${destdir32}/usr/lib32
+		cp -a ${PKGDESTDIR}/usr/lib/* ${destdir32}/usr/lib32
+
+		# Only keep shared libs, static libs, and pkg-config files.
+		find "${destdir32}" -not \( \
+			-name '*.pc' -or \
+			-name '*.so' -or \
+			-name '*.so.*' -or \
+			-name '*.a' -or \
+			-name '*.la' -or \
+			-name '*.o' -or \
+			-type d \
+		\) -delete
+
+		# Remove empty dirs.
+		for f in $(find ${destdir32} -type d -empty|sort -r); do
+			_dir="${f##${destdir32}}"
+			[ -z "${_dir}" ] && continue
+			rmdir --ignore-fail-on-non-empty -p "$f" &>/dev/null
+		done
+
+		# Switch pkg-config files to lib32.
+		if [ -d ${destdir32}/usr/lib32/pkgconfig ]; then
+			sed -e 's,/usr/lib,/usr/lib32,g' \
+			    -e 's,${exec_prefix}/lib,${exec_prefix}/lib32,g' \
+			    -i ${destdir32}/usr/lib32/pkgconfig/*.pc
+		fi
+	elif [ "$lib32mode" = "full" ]; then
+		# Full 32bit mode; copy everything to new destdir.
+		mkdir -p ${destdir32}
+		cp -a ${PKGDESTDIR}/* ${destdir32}/
 	fi
-	mkdir -p ${destdir32}/usr/lib32
-	cp -a ${PKGDESTDIR}/usr/lib/* ${destdir32}/usr/lib32
-
-	# Only keep shared libs, static libs, and pkg-config files.
-	find "${destdir32}" -not \( \
-		-name '*.pc' -or \
-		-name '*.so' -or \
-		-name '*.so.*' -or \
-		-name '*.a' -or \
-		-name '*.la' -or \
-		-name '*.o' -or \
-		-type d \
-	\) -delete
-
-	# Remove empty dirs.
-	for f in $(find ${destdir32} -type d -empty|sort -r); do
-		_dir="${f##${destdir32}}"
-		[ -z "${_dir}" ] && continue
-		rmdir --ignore-fail-on-non-empty -p "$f" &>/dev/null
-	done
-
 	if [ ! -d ${destdir32} ]; then
 		return
 	fi
 
-	# Switch pkg-config files to lib32.
-	if [ -d ${destdir32}/usr/lib32/pkgconfig ]; then
-		sed -e 's,/usr/lib,/usr/lib32,g' \
-		    -e 's,${exec_prefix}/lib,${exec_prefix}/lib32,g' \
-		    -i ${destdir32}/usr/lib32/pkgconfig/*.pc
-	fi
-
 	# If the rdeps file exist (runtime deps), copy and then modify it for
 	# 32bit dependencies.
 	trap - ERR
@@ -62,7 +76,14 @@ hook() {
 	: > ${destdir32}/rdeps
 
 	if [ -s "$PKGDESTDIR/rdeps" ]; then
-		for f in $(cat ${PKGDESTDIR}/rdeps); do
+		if [ -n "$lib32depends" ]; then
+			_deps="${lib32depends}"
+		else
+			_deps="$(cat ${PKGDESTDIR}/rdeps)"
+		fi
+		for f in ${_deps}; do
+			unset pkgn pkgv _noarch _hasdevel
+
 			pkgn="$($XBPS_UHELPER_CMD getpkgdepname $f)"
 			if [ -z "${pkgn}" ]; then
 				pkgn="$($XBPS_UHELPER_CMD getpkgname $f)"
@@ -73,6 +94,12 @@ hook() {
 			else
 				pkgv="$($XBPS_UHELPER_CMD getpkgdepversion ${f})"
 			fi
+			# If dependency is noarch do not change it to 32bit.
+			_noarch=$($XBPS_QUERY_CMD -R --property=architecture "$f")
+			if [ "${_noarch}" = "noarch" ]; then
+				printf "${pkgn}${pkgv} " >> ${destdir32}/rdeps
+				continue
+			fi
 			printf "${pkgn}-32bit${pkgv} " >> $destdir32/rdeps
 		done
 	fi
@@ -82,4 +109,6 @@ hook() {
 		printf "${pkgver} " >> ${destdir32}/rdeps
 	fi
 	printf "\n" >> ${destdir32}/rdeps
+
+	unset lib32depends lib32disabled lib32mode
 }