[configs/releng] Add purge_* commands

purge_single command can be usefull to save space during build. It removes
all files in working directory except "iso/" and *.iso.

Workflow can be:

(32)  ./build.sh all_iso_single -> i686 *.iso are ready.
(32)  ./build.sh purge_single -> safe cleanup.
(64)  ./build.sh all_iso_single -> x86_64 *.iso are ready.
(64)  ./build.sh purge_single -> safe cleanup.
(any) ./build.sh all_iso_dual -> dual *.iso are ready.

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

1 files changed, 16 insertions, 2 deletions

diff --git a/configs/releng/build.sh b/configs/releng/build.sh
index 135cc03..e75edb7 100755
--- a/configs/releng/build.sh
+++ b/configs/releng/build.sh
@@ -215,8 +215,8 @@ make_dual() {
 
 _usage ()
 {
-    echo "usage ${0##*/} net_iso_single | core_iso_single | all_iso_single | clean_single"
-    echo "               net_iso_dual   | core_iso_dual   | all_iso_dual   | clean_dual"
+    echo "usage ${0##*/} net_iso_single | core_iso_single | all_iso_single | purge_single | clean_single"
+    echo "               net_iso_dual   | core_iso_dual   | all_iso_dual   | purge_dual   | clean_dual"
     echo
     exit ${1}
 }
@@ -280,6 +280,20 @@ case "${command_name}" in
         make_dual netinstall
         make_dual core
         ;;
+    purge_single)
+        if [[ -d ${work_dir} ]]; then
+            find ${work_dir} -mindepth 1 -maxdepth 1 \
+                ! -path ${work_dir}/iso -prune \
+                | xargs rm -rf
+        fi
+        ;;
+    purge_dual)
+        if [[ -d ${work_dir}/dual ]]; then
+            find ${work_dir}/dual -mindepth 1 -maxdepth 1 \
+                ! -path ${work_dir}/dual/iso -prune \
+                | xargs rm -rf
+        fi
+        ;;
     clean_single)
         rm -rf ${work_dir}
         rm -f ${name}-${version}-*-${arch}.iso