Utils: Add GitHub forking tool
Change-Id: Ida89d9e331ccdcbf627195f33c17129d383c87e2
diff --git a/utils/fork_github.sh b/utils/fork_github.sh
new file mode 100755
index 0000000..4e60ec0
--- /dev/null
+++ b/utils/fork_github.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# Tool for forking a GitHub repository to another GitHub org,
+# by creating the repo on GitHub and Gerrit, and pushing
+# the source repo to Gerrit.
+# The name of the repository can be changed before forking,
+# and if the regular branch isn't found, you can choose
+# in the list of available branches.
+# Usage: ./fork.sh
+
+##
+# Configuration
+##
+USERNAME=xplodwild
+BRANCH=android-4.4
+GERRIT=gerrit.omnirom.org
+GITHUB_ORG=omnirom
+
+##
+# Script
+##
+
+# Read the source GitHub URL
+read -p "GitHub URL (no trailing slash): " github_url
+
+# Extract the repo name and prompt for changes
+repo_name=${github_url##*/}
+original_repo_name=$repo_name
+
+read -e -i "$repo_name" -p "Final repo name: " repo_name
+
+# Clone the repo locally
+git clone $github_url
+
+# Create the new repository on the organization
+echo Creating $repo_name on GitHub
+
+curl --user $USERNAME --data "{\"name\":\"$repo_name\"}" https://api.github.com/orgs/$GITHUB_ORG/repos
+
+# Create the repository on Gerrit
+echo Creating $repo_name on Gerrit
+
+ssh -p 29418 $GERRIT gerrit create-project --name $repo_name
+
+# Push the repository
+cd $original_repo_name
+
+git checkout $BRANCH
+git show-ref --verify --quiet refs/heads/$BRANCH
+
+if [ $? != 0 ]; then
+ echo "Branch $BRANCH doesn't exist in the original repository"
+ echo "Here are the branches:"
+ git branch -a
+ echo "--------------------------------------"
+ read -p "Branch to clone from: " origin_branch
+ git checkout $origin_branch
+ git branch $BRANCH
+fi
+
+git push ssh://gerrit.omnirom.org:29418/$repo_name $BRANCH
+
+# If pushing failed, we might want to forcepush the repository
+# to overwite what was previously there.
+if [ $? != 0 ]; then
+ echo "Unable to push!"
+ read -p "Try with -f? [y/n]: " forcepush
+ if [ "$forcepush" = "y" ]; then
+ git psuh -f ssh://gerrit.omnirom.org:29418/$repo_name $BRANCH
+ fi
+fi
+
+# Cleanup our local copy
+cd ..
+rm -rf $original_repo_name
+
+# Done!
+echo "Fork done!"