add checkout verb, to make bite-sized git repos

This allows you to create a repo as a child of asp's, which you can
modify as you wish, and continue to pull changes from after calling
'abs update'. One might create a new remote for this repo in which
to publish their own downstream branch.

1 files changed, 3 insertions, 0 deletions

diff --git a/asp.in b/asp.in
index fcf16b0..0797bc9 100644
--- a/asp.in
+++ b/asp.in
@@ -264,6 +264,9 @@ case $action in
     usage
     exit 0
     ;;
+  checkout)
+    map package_checkout "$@"
+    ;;
   '')
     log_fatal 'no action specified (use -h for help)'
     ;;