new features relating to creating wild repos:

- new 'create' command for explicit creation
  - new 'AutoCreate' trigger to prevent auto-creation on read operations
    or both read and write operations
  - a few related fixups to the perms command

src/lib/Gitolite/Triggers/AutoCreate.pm

@@ -0,0 +1,24 @@
+package Gitolite::Triggers::AutoCreate;
+
+use strict;
+use warnings;
+
+# perl trigger set for stuff to do with auto-creating repos
+# ----------------------------------------------------------------------
+
+# to deny auto-create on read access, add 'AutoCreate::deny_R' to the
+# PRE_CREATE trigger list
+sub deny_R {
+    die "autocreate denied\n" if $_[3] and $_[3] eq 'R';
+    return;
+}
+
+# to deny auto-create on read *and* write access, add 'AutoCreate::deny_RW' to
+# the PRE_CREATE trigger list.  This means you can only create repos using the
+# 'create' command, (which needs to be enabled in the COMMANDS list).
+sub deny_RW {
+    die "autocreate denied\n" if $_[3] and ( $_[3] eq 'R' or $_[3] eq 'W' );
+    return;
+}
+
+1;