+2020-01-22 Richard Earnshaw <rearnsha@arm.com>
+
+ * git-add-vendor-branch.sh: New file.
+
2020-01-20 Richard Earnshaw <rearnsha@arm.com>
* gcc-git-customization.sh: Check that user-supplied remote
--- /dev/null
+#! /bin/sh -e
+
+# Create a new upstream vendor branch.
+
+# Usage:
+# contrib/git-add-vendor-branch.sh <vendor>/<branch-name> <base>
+
+usage ()
+{
+ echo "Usage:"
+ echo " $0 <vendor>/<branch-name> <start-point>"
+ echo
+ echo "<vendor> must have already been set up using contrib/git-fetch-vendor.sh"
+ exit 1
+}
+
+if [ $# != 2 ]
+then
+ usage
+fi
+
+vendor=$(echo "$1" | sed -r "s:([^/]*)/.*$:\1:")
+branch=$(echo "$1" | sed -r "s:[^/]*/(.*)$:\1:")
+start=$2
+
+# Sanity check the new branch argument. If there is no '/', then the
+# vendor will be the same as the entire first argument.
+if [ -z "$vendor" -o -z "$branch" -o ${vendor} = $1 ]
+then
+ usage
+fi
+
+# Check that we know about the vendor
+url=$(git config --get "remote.vendors/${vendor}.url"||true)
+if [ -z "$url" ]
+then
+ echo "Cannot locate remote data for vendor ${vendor}. Have you set it up?"
+ exit 1
+fi
+
+git branch --no-track ${vendor}/${branch} ${start}
+git push vendors/${vendor} ${vendor}/${branch}:refs/vendors/${vendor}/heads/${branch}
+git fetch -q vendors/${vendor}
+git branch --set-upstream-to=remotes/vendors/${vendor}/${branch} ${vendor}/$branch
+echo "You are now ready to check out ${vendor}/${branch}"
+echo "To push the branch upstream, use:"
+echo
+echo "git push vendors/${vendor} ${vendor}/${branch}"