scripts/clean: allow cleaning package for all projects

scripts/clean

@@ -20,7 +20,7 @@
 
 . config/options $1
 
-if [ ! -z "$1" ]; then
+clean_package() {
   printf "%${BUILD_INDENT}c ${boldred}CLEAN${endcolor}    $1\n" ' '>&$SILENT_OUT
   export BUILD_INDENT=$((${BUILD_INDENT:-1}+$BUILD_INDENT_SIZE))
 
@@ -43,4 +43,26 @@ if [ ! -z "$1" ]; then
     fi
   done
   rm -f $STAMPS/$1/build_*
+}
+
+if [ "$1" = "--all" ]; then
+  if [ ! -z "$2" ]; then
+    for PROJECT in $(ls -1 projects); do
+      for archfile in projects/$PROJECT/linux/linux.*.conf ; do
+        if [ ! -f "$archfile" ]; then
+          for archfile in projects/$PROJECT/linux/*/linux.*.conf ; do
+            archfile=$archfile
+          done
+        fi
+        echo $archfile
+        ARCH=`echo $archfile | sed -n '$s/\.conf//;$s/.*\.//p'`
+        PROJECT=$PROJECT ARCH=$ARCH ./scripts/clean $2
+      done
+    done
+  fi
+else
+  if [ ! -z "$1" ]; then
+    clean_package $1
+  fi
 fi
+