From 28caf5dec8dee4fe358d0982f5fea2a6ebe200db Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 7 Oct 2010 15:06:15 +0000
Subject: [PATCH] [backfire] merge r23256, r23257 and r23258

git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@23295 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 include/package-ipkg.mk                            | 15 ++++++++++++++
 package/base-files/Makefile                        |  4 +++-
 package/base-files/files/etc/sysupgrade.conf       |  5 +++++
 .../files/lib/upgrade/keep.d/base-files-essential  | 10 ++++++++++
 package/base-files/files/sbin/sysupgrade           |  5 +++--
 .../ipkg-utils/patches/170-resolve_conffiles.patch | 23 ++++++++++++++++++++++
 6 files changed, 59 insertions(+), 3 deletions(-)
 create mode 100644 package/base-files/files/etc/sysupgrade.conf
 create mode 100644 package/base-files/files/lib/upgrade/keep.d/base-files-essential
 create mode 100644 tools/ipkg-utils/patches/170-resolve_conffiles.patch

diff --git a/include/package-ipkg.mk b/include/package-ipkg.mk
index b3b8f2bf6..0ef440d4a 100644
--- a/include/package-ipkg.mk
+++ b/include/package-ipkg.mk
@@ -49,6 +49,7 @@ ifeq ($(DUMP),)
     IPKG_$(1):=$(PACKAGE_DIR)/$(1)_$(VERSION)_$(PKGARCH).ipk
     IDIR_$(1):=$(PKG_BUILD_DIR)/ipkg-$(PKGARCH)/$(1)
     INFO_$(1):=$(IPKG_STATE_DIR)/info/$(1).list
+    KEEP_$(1):=$(strip $(call Package/$(1)/conffiles))
 
     ifeq ($(if $(VARIANT),$(BUILD_VARIANT)),$(VARIANT))
     ifdef Package/$(1)/install
@@ -115,6 +116,20 @@ ifeq ($(DUMP),)
 	$(RSTRIP) $$(IDIR_$(1))
 	SIZE=`cd $$(IDIR_$(1)); du -bs --exclude=./CONTROL . 2>/dev/null | cut -f1`; \
 	$(SED) "s|^\(Installed-Size:\).*|\1 $$$$SIZE|g" $$(IDIR_$(1))/CONTROL/control
+
+    ifneq ($$(KEEP_$(1)),)
+		@( \
+			keepfiles=""; \
+			for x in $$(KEEP_$(1)); do \
+				[ -f "$$(IDIR_$(1))/$$$$x" ] || keepfiles="$$$${keepfiles:+$$$$keepfiles }$$$$x"; \
+			done; \
+			[ -z "$keepfiles" ] || { \
+				mkdir -p $$(IDIR_$(1))/lib/upgrade/keep.d; \
+				for x in $$$$keepfiles; do echo $$$$x >> $$(IDIR_$(1))/lib/upgrade/keep.d/$(1); done; \
+			}; \
+		)
+    endif
+
 	$(IPKG_BUILD) $$(IDIR_$(1)) $(PACKAGE_DIR)
 	@[ -f $$(IPKG_$(1)) ] || false 
 
diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 2b986049e..1478d8a19 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=43.7
+PKG_RELEASE:=43.8
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 PKG_BUILD_DEPENDS:=opkg/host
@@ -54,6 +54,8 @@ define Package/base-files/conffiles
 /etc/shells
 /etc/sysctl.conf
 /etc/rc.local
+/etc/config/
+/etc/dropbear/
 $(call $(TARGET)/conffiles)
 endef
 
diff --git a/package/base-files/files/etc/sysupgrade.conf b/package/base-files/files/etc/sysupgrade.conf
new file mode 100644
index 000000000..e06fd5e33
--- /dev/null
+++ b/package/base-files/files/etc/sysupgrade.conf
@@ -0,0 +1,5 @@
+## This file contains files and directories that should
+## be preserved during an upgrade.
+
+# /etc/example.conf
+# /etc/openvpn/
diff --git a/package/base-files/files/lib/upgrade/keep.d/base-files-essential b/package/base-files/files/lib/upgrade/keep.d/base-files-essential
new file mode 100644
index 000000000..e35aae509
--- /dev/null
+++ b/package/base-files/files/lib/upgrade/keep.d/base-files-essential
@@ -0,0 +1,10 @@
+# Essential files that will be always kept
+/etc/banner
+/etc/hosts
+/etc/inittab
+/etc/group
+/etc/passwd
+/etc/profile
+/etc/shells
+/etc/sysctl.conf
+/etc/rc.local
diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index bf00aaa5f..cae59dc6b 100755
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -51,8 +51,9 @@ EOF
 
 add_uci_conffiles() {
 	local file="$1"
-	( find /etc/config /etc/passwd /etc/group /etc/dropbear \
-		/etc/firewall.user /etc/rc.local -type f;
+	( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
+		/etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
+		-type f 2>/dev/null;
 	  opkg list-changed-conffiles ) | sort -u > "$file"
 	return 0
 }
diff --git a/tools/ipkg-utils/patches/170-resolve_conffiles.patch b/tools/ipkg-utils/patches/170-resolve_conffiles.patch
new file mode 100644
index 000000000..31faf30a0
--- /dev/null
+++ b/tools/ipkg-utils/patches/170-resolve_conffiles.patch
@@ -0,0 +1,23 @@
+--- a/ipkg-build
++++ b/ipkg-build
+@@ -160,12 +160,15 @@ You probably want to chown these to a sy
+ 	done
+ 
+ 	if [ -f $CONTROL/conffiles ]; then
+-		for cf in `cat $CONTROL/conffiles`; do
+-			if [ ! -f ./$cf ]; then
+-				echo "*** Error: $CONTROL/conffiles mentions conffile $cf which does not exist" >&2
+-				PKG_ERROR=1
+-			fi
++		rm -f $CONTROL/conffiles.resolved
++
++		for cf in `$FIND $(sed -e "s!^/!$pkg_dir/!" $CONTROL/conffiles) -type f`; do
++			echo "${cf#$pkg_dir}" >> $CONTROL/conffiles.resolved
+ 		done
++
++		rm $CONTROL/conffiles
++		mv $CONTROL/conffiles.resolved $CONTROL/conffiles
++		chmod 0644 $CONTROL/conffiles
+ 	fi
+ 
+ 	cd $owd
-- 
2.11.0