Let tg-update take a branch parameter

[topgit.git] / tg-update.sh

diff --git a/tg-update.sh b/tg-update.sh
index 73280c65af79af2da50204582c7029a00cfcef34..b256c7c270b41c4e8f5d384a7ece4011d07beb74 100644 (file)
--- a/tg-update.sh
+++ b/tg-update.sh
@@ -8,13 +8,19 @@ name=
 
 ## Parse options
 
-if [ -n "$1" ]; then
-       echo "Usage: tg [...] update" >&2
-       exit 1
-fi
-
-
-name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
+while [ -n "$1" ]; do
+       arg="$1"; shift
+       case "$arg" in
+       -*)
+               echo "Usage: tg [...] update [NAME]" >&2
+               exit 1;;
+       *)
+               [ -z "$name" ] || die "name already specified ($name)"
+               name="$arg";;
+       esac
+done
+
+[ -n "$name" ] || name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
 base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
        die "not a TopGit-controlled branch"