setup-all-dchroots: copy from tor: -c support

Add option to just write config files.  Also revamps parameter parsing.

diff --git a/modules/schroot/files/setup-all-dchroots b/modules/schroot/files/setup-all-dchroots
index e0a4327..df7d66a 100755 (executable)
--- a/modules/schroot/files/setup-all-dchroots
+++ b/modules/schroot/files/setup-all-dchroots
@@ -31,10 +31,48 @@
 DPKGARCH=$(dpkg --print-architecture)
 UNAMEARCH=$(uname -m)
 
-if [ "${1:-}" = "buildd" ]; then
-    MODE=buildd
-    if ! [ -d /srv/buildd/ ]; then
-        echo >&2 "Error: /srv/buildd does not exist or is not a directory."
+usage()
+{
+cat << EOF
+usage: $0 [<options>] [buildd]
+
+OPTIONS:
+    -c         write config only
+    -h         this help
+EOF
+}
+
+extraargs=""
+while getopts "cu" OPTION
+do
+    case $OPTION in
+        c)
+            extraargs="$extraargs -c"
+            ;;
+        h)
+            usage
+            exit 0
+            ;;
+        *)
+            usage >&2
+            exit 1
+            ;;
+    esac
+done
+shift $(($OPTIND - 1))
+
+if [ "$#" -gt 1 ]; then
+    usage >&2
+    exit 1
+elif [ "$#" = 1 ]; then
+    if [ "${1:-}" = "buildd" ]; then
+        MODE=buildd
+        if ! [ -d /srv/buildd/ ]; then
+            echo >&2 "Error: /srv/buildd does not exist or is not a directory."
+            exit 1
+        fi
+    else
+        usage >&2
         exit 1
     fi
 else
@@ -96,13 +134,13 @@ do_one() {
     case "$MODE" in
         buildd)
             mkdir -p /srv/buildd/unpack
-            if ! $SILENT setup-dchroot -f -a "$a" $extra -D -d '/srv/buildd/unpack' -K "$s"
+            if ! $SILENT setup-dchroot $extraargs -f -a "$a" $extra -D -d '/srv/buildd/unpack' -K "$s"
             then
                 return 1
             fi
             ;;
         porterbox)
-            if ! $SILENT setup-dchroot -f -a "$a" $extra "$s"
+            if ! $SILENT setup-dchroot $extraargs -f -a "$a" $extra "$s"
             then
                 return 1
             fi