[LEDE-DEV] [PATCH 10/12] base-files: add update-alternatives call to default_{postinst, prerm}

[Yousong Zhou]

Signed-off-by: Yousong Zhou <yszhou4tech at gmail.com>
---
 package/base-files/Makefile               |  2 +-
 package/base-files/files/lib/functions.sh | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 99a10ff..7dde9e1 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk
 include $(INCLUDE_DIR)/version.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=172
+PKG_RELEASE:=173
 PKG_FLAGS:=nonshared
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh
index de3fa96..42c4f6c 100755
--- a/package/base-files/files/lib/functions.sh
+++ b/package/base-files/files/lib/functions.sh
@@ -168,6 +168,7 @@ default_prerm() {
 
 	name=$(basename ${1%.*})
 	[ -f "$root/usr/lib/opkg/info/${name}.prerm-pkg" ] && . "$root/usr/lib/opkg/info/${name}.prerm-pkg"
+	check_update_alternatives remove "${name}"
 
 	local shell="$(which bash)"
 	for i in `cat "$root/usr/lib/opkg/info/${name}.list" | grep "^/etc/init.d/"`; do
@@ -217,12 +218,29 @@ add_group_and_user() {
 	fi
 }
 
+check_update_alternatives() {
+	local cmd="$1"
+	local pkgname="$2"
+	local altspecs="$(sed -ne 's/^Alternatives: *//p' $root/usr/lib/opkg/info/${pkgname}.control 2>/dev/null)"
+	local spec
+	local oIFS
+	local shell="$(which bash)"
+
+	shell="${shell:-/bin/sh}"
+	oIFS="$IFS"; IFS=", "
+	for spec in $altspecs; do
+		$shell ${IPKG_INSTROOT}/usr/sbin/update-alternatives "$cmd" --spec "$spec"
+	done
+	IFS="$oIFS"
+}
+
 default_postinst() {
 	local root="${IPKG_INSTROOT}"
 	local pkgname="$(basename ${1%.*})"
 	local ret=0
 
 	add_group_and_user "${pkgname}"
+	check_update_alternatives update "${pkgname}"
 
 	if [ -f "$root/usr/lib/opkg/info/${pkgname}.postinst-pkg" ]; then
 		( . "$root/usr/lib/opkg/info/${pkgname}.postinst-pkg" )
-- 
2.6.4