(http) gl-setup changes...

- only admin name needed, not pubkey file
  - setup HOME from GITOLITE_HTTP_HOME

src/gl-setup

@@ -21,6 +21,12 @@ GL_PACKAGE_CONF=/tmp/share/gitolite/conf
 
 die() { echo "$@"; exit 1; }
 
+
+if [ -n "$GITOLITE_HTTP_HOME" ]
+then
+    HOME=$GITOLITE_HTTP_HOME
+    admin_name=$1
+else
     pubkey_file=$1
     admin_name=
     if [ -n "$pubkey_file" ]
@@ -30,6 +36,7 @@ then
         admin_name=` basename $pubkey_file .pub`
         echo $admin_name | grep '@' >/dev/null && die "please don't use '@' in the initial admin name"
     fi
+fi
 
 if [ -f $HOME/.gitolite.rc ]
 then
@@ -49,7 +56,9 @@ then
     fi
     rm -f .newvars .oldvars .diffvars
 else
-    [ -n "$pubkey_file" ] || die "looks like first run -- I need a pubkey file"
+    [ -n "$GITOLITE_HTTP_HOME" ] || [ -n "$pubkey_file" ] || die "looks like first run -- I need a pubkey file"
+    [ -z "$GITOLITE_HTTP_HOME" ] || [ -n "$admin_name"  ] || die "looks like first run -- I need an admin name"
+
     cp $GL_PACKAGE_CONF/example.gitolite.rc $HOME/.gitolite.rc
 fi