Store pre-oldconfig busybox .config for use in bincache comparison

git-svn-id: svn+ssh://svn.gentoo.org/var/svnroot/genkernel/trunk@676 67a159dc-881f-0410-a524-ba9dfbe2cb84

ChangeLog

@@ -2,6 +2,9 @@
 # Copyright 2006-2008 Gentoo Foundation; Distributed under the GPL v2
 # $Header: $
 
+  10 May 2008; Andrew Gaffney <agaffney@gentoo.org> gen_compile.sh:
+  Store pre-oldconfig busybox .config for use in bincache comparison
+
   09 May 2008; Andrew Gaffney <agaffney@gentoo.org> generic/initrd.defaults,
   generic/initrd.scripts, generic/linuxrc:
   Add nomodules kernel commandline parameter to disable loading of modules

gen_compile.sh

@@ -360,27 +360,12 @@ compile_busybox() {
 		gen_die "Could not find busybox source tarball: ${BUSYBOX_SRCTAR}!"
 	[ -f "${BUSYBOX_CONFIG}" ] ||
 		gen_die "Cound not find busybox config file: ${BUSYBOX_CONFIG}!"
-	cd "${TEMP}"
-	rm -rf "${BUSYBOX_DIR}" > /dev/null
-	/bin/tar -jxpf ${BUSYBOX_SRCTAR} ||
-		gen_die 'Could not extract busybox source tarball!'
-	[ -d "${BUSYBOX_DIR}" ] ||
-		gen_die 'Busybox directory ${BUSYBOX_DIR} is invalid!'
-	cp "${BUSYBOX_CONFIG}" "${BUSYBOX_DIR}/.config"
-#	sed -i ${BUSYBOX_DIR}/.config -e 's/#\? \?CONFIG_FEATURE_INSTALLER[ =].*/CONFIG_FEATURE_INSTALLER=y/g'
-	cd "${BUSYBOX_DIR}"
-#	patch -p1 < "${GK_SHARE}/pkg/busybox-1.1.3+gentoo-mdadm.patch"
-#	patch -p1 < "${GK_SHARE}/pkg/busybox-1.1.3+gentoo-mdadm2.patch"
-#	patch -p1 < "${GK_SHARE}/pkg/busybox-1.1.3+gentoo-mdadm3.patch"
-	apply_patches busybox ${BUSYBOX_VER}
-	print_info 1 'busybox: >> Configuring...'
-	yes '' 2>/dev/null | compile_generic oldconfig utils
 
 	# Delete cache if stored config's MD5 does not match one to be used
-	if [ -f "${BUSYBOX_BINCACHE}" -a -f "${BUSYBOX_CONFIG}" ]
+	if [ -f "${BUSYBOX_BINCACHE}" ]
 	then
-		oldconfig_md5=$(tar -xjf "${BUSYBOX_BINCACHE}" -O .config | md5sum)
+		oldconfig_md5=$(tar -xjf "${BUSYBOX_BINCACHE}" -O .config.gk_orig 2>/dev/null | md5sum)
-		newconfig_md5=$(md5sum < .config)
+		newconfig_md5=$(md5sum < "${BUSYBOX_CONFIG}")
 		if [ "${oldconfig_md5}" != "${newconfig_md5}" ]
 		then
 			print_info 1 "busybox: >> Removing stale cache..."
@@ -392,6 +377,19 @@ compile_busybox() {
 
 	if [ ! -f "${BUSYBOX_BINCACHE}" ]
 	then
+		cd "${TEMP}"
+		rm -rf "${BUSYBOX_DIR}" > /dev/null
+		/bin/tar -jxpf ${BUSYBOX_SRCTAR} ||
+			gen_die 'Could not extract busybox source tarball!'
+		[ -d "${BUSYBOX_DIR}" ] ||
+			gen_die 'Busybox directory ${BUSYBOX_DIR} is invalid!'
+		cp "${BUSYBOX_CONFIG}" "${BUSYBOX_DIR}/.config"
+		cp "${BUSYBOX_CONFIG}" "${BUSYBOX_DIR}/.config.gk_orig"
+		cd "${BUSYBOX_DIR}"
+		apply_patches busybox ${BUSYBOX_VER}
+		print_info 1 'busybox: >> Configuring...'
+		yes '' 2>/dev/null | compile_generic oldconfig utils
+
 		print_info 1 'busybox: >> Compiling...'
 		compile_generic all utils
 		print_info 1 'busybox: >> Copying to cache...'
@@ -399,12 +397,12 @@ compile_busybox() {
 			gen_die 'Busybox executable does not exist!'
 		strip "${TEMP}/${BUSYBOX_DIR}/busybox" ||
 			gen_die 'Could not strip busybox binary!'
-		tar -cj -C "${TEMP}/${BUSYBOX_DIR}" -f "${BUSYBOX_BINCACHE}" busybox .config ||
+		tar -cj -C "${TEMP}/${BUSYBOX_DIR}" -f "${BUSYBOX_BINCACHE}" busybox .config .config.gk_orig ||
 			gen_die 'Could not create the busybox bincache!'
-	fi
 
-	cd "${TEMP}"
+		cd "${TEMP}"
-	rm -rf "${BUSYBOX_DIR}" > /dev/null
+		rm -rf "${BUSYBOX_DIR}" > /dev/null
+	fi
 }
 
 compile_lvm() {