Merge pull request #186 from kisslinux/rm_etc

kiss: Add handling of /etc/ files to removal action.

kiss

@@ -986,10 +986,15 @@ pkg_remove_files() {
     # installation and package removal. Combining the removals in these two
     # functions allows us to stop duplicating code.
     while read -r file; do
-        case $file in /etc/*)
-            printf 'Skipping removal of %s\n' "$file"
-            continue;
-        esac
+        case $file in /etc/?*[!/])
+            sum_sys=$(sh256 "$KISS_ROOT/$file")
+            sum_old=$(grep -F "$sum_sys" "$mak_dir/c")
+
+            [ "$sum_sys" = "$sum_old" ] || {
+                printf 'Skipping %s (modified)\n' "$file"
+                continue
+            }
+        esac 2>/dev/null ||:
 
         file=$KISS_ROOT/$file
 
@@ -1085,8 +1090,10 @@ pkg_remove() {
         "$sys_db/$1/pre-remove" ||:
     fi
 
-    log "$1" "Removing package"
+    # Make a backup of the etcsums file (if it exists).
+    cp -f "$sys_db/$1/etcsums" "$mak_dir/c" 2>/dev/null ||:
 
+    log "$1" "Removing package"
     pkg_remove_files < "$sys_db/$1/manifest"
 
     # Reset 'trap' to its original value. Removal is done so