[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, 3 insertions, 1 deletions

diff --git a/README b/README
index 09765fb..ff1832e 100644
--- a/README
+++ b/README
@@ -240,6 +240,7 @@ Note: These steps should be done with 64 bits support.
   [chroot32] # cp -r /usr/share/archiso/configs/releng /tmp
   [chroot32] # cd /tmp/releng
   [chroot32] # ./build.sh all_iso_single
+  [chroot32] # ./build.sh purge_single #optional
 
 * Enter 64 bits chroot enviroment then build core and netinstall single images.
 
@@ -248,9 +249,10 @@ Note: These steps should be done with 64 bits support.
   [chroot64] # cp -r /usr/share/archiso/configs/releng /tmp
   [chroot64] # cd /tmp/releng
   [chroot64] # ./build.sh all_iso_single
+  [chroot64] # ./build.sh purge_single #optional
 
 * Build core and netinstall dual images from any of the chroot enviroments.
 
-  [host64] mkarchroot -r bash /tmp/chroot64
+  [host64] # mkarchroot -r bash /tmp/chroot64
   [chroot64] # cd /tmp/releng
   [chroot64] # ./build.sh all_iso_dual