Add `fork` script to setup upstream and origin remotes

diff --git a/fork b/fork
new file mode 100755 (executable)
index 0000000..99a8476
--- /dev/null
+++ b/fork
@@ -0,0 +1,28 @@
+#! /bin/sh
+
+if [ -z "$2" ]; then
+   echo "Usage: $0 upstream origin" >&2
+   exit 1
+fi
+
+upstream="$1"
+origin="$2"
+local_repo="`basename \"$origin\" .git`"
+
+git clone -o upstream "$upstream" "$local_repo" &&
+cd "$local_repo" &&
+git remote add origin "$origin" &&
+
+chmod a-x .git/config &&
+branch="`git branch | awk '/^\*/ {print $2}'`" &&
+
+git pull origin $branch &&
+git push -u origin &&
+
+git config branch.$branch.remote upstream &&
+git config branch.$branch.remotepush origin &&
+git config branch.$branch.merge refs/heads/$branch &&
+git config push.default current &&
+
+git gc --aggressive &&
+exec pwd >> "`dirname \"$0\"`"/locate-all.list