base-files: sysupgrade: do not rely on opkg to list changed conffiles

[openwrt/staging/luka.git] / package / base-files / files / sbin / sysupgrade

diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index c747c4eaad84f70c2a13c3dcb79f8e989aea118e..bf5428af259e414a3b9f402d5716b00c819ceb1d 100755 (executable)
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -96,12 +96,31 @@ EOF
 # prevent messages from clobbering the tarball when using stdout
 [ "$CONF_BACKUP" = "-" ] && export VERBOSE=0
 
+
+list_conffiles() {
+       awk '
+               BEGIN { conffiles = 0 }
+               /^Conffiles:/ { conffiles = 1; next }
+               !/^ / { conffiles = 0; next }
+               conffiles == 1 { print }
+       ' /usr/lib/opkg/status
+}
+
+list_changed_conffiles() {
+       # Cannot handle spaces in filenames - but opkg cannot either...
+       list_conffiles | while read file csum; do
+               [ -r "$file" ] || continue
+
+               echo "${csum}  ${file}" | sha256sum -sc - || echo "$file"
+       done
+}
+
 add_uci_conffiles() {
        local file="$1"
        ( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
                /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
                -type f -o -type l 2>/dev/null;
-         opkg list-changed-conffiles ) | sort -u > "$file"
+         list_changed_conffiles ) | sort -u > "$file"
        return 0
 }