Initial commit

Gitlab2GithubMirror.sh

+#!/bin/bash
+#
+# Shell script to config a Gitlab project to automatically mirror on Github.
+# -------------------------------------------------------------------------
+# File Name:	Gitlab2GithubMirror.sh
+# Version:	1.0
+# Last updated: Aug 2017
+# -------------------------------------------------------------------------
+# Released under the GPLv3 Licence
+#
+# @AUTHORS: Hispanico (hispanico@ninux.org)
+# -------------------------------------------------------------------------
+
+
+# ---------------------------------------------------------------------------
+# DEFINITION VARIABLES
+# ---------------------------------------------------------------------------
+
+GitlabNamespace=$1
+GitlabProjectName=$2
+GithubUser=$3
+
+sys_gituser="git"
+sys_gitgroup="git"
+
+GitLabReposPath="/var/opt/gitlab/git-data/repositories"
+GitLabProjectPath="$GitLabReposPath/$GitlabNamespace/$GitlabProjectName.git"
+#==========================================================================
+
+if [ $# -ne 3 ]; then
+  echo ""
+  echo "Usage: "
+  echo "  sh $0 <GitlabNamespace> <GitlabProjectName> <GithubUser>"
+  echo ""
+  echo "Arguments:"
+  echo "  GitlabNamespace:  Namespace on Gitlab Server"
+  echo "  GitlabProjectName: Project name Gitlab Server"
+  echo "  GithubUser: Github username"
+  echo ""
+  echo "Examples:"
+  echo "  sh $0 MyNameSpace MyProject MyGithubUser"
+  echo ""
+
+  exit 1
+fi
+
+# ---------------------------------------------------------------------------
+# Check if the Gitlab Project exist
+# ---------------------------------------------------------------------------
+if [ ! -d $GitLabProjectPath ]; then
+  echo "Error: Project doesn't exist on Gitlab Server"
+
+  exit 1
+fi
+
+# ---------------------------------------------------------------------------
+# Main
+# ---------------------------------------------------------------------------
+# Add github remote to git config
+
+if [ $(grep "git@github.com:$GithubUser/$GitlabProjectName.git" $GitLabProjectPath/config 2>&1 > /dev/null) ]; then
+cat << EOF >> $GitLabProjectPath/config
+[remote "github"]
+	url = git@github.com:$GithubUser/$GitlabProjectName.git
+	fetch = +refs/heads/*:refs/remotes/github/*
+EOF
+fi
+
+#Create custom hooks to github mirroring
+[ ! -d $GitLabProjectPath/custom_hooks ] && mkdir $GitLabProjectPath/custom_hooks || :
+cat << EOF > $GitLabProjectPath/custom_hooks/post-receive
+#!/usr/bin/env bash
+git push --mirror github
+EOF
+
+chmod +x $GitLabProjectPath/custom_hooks/post-receive
+chown -R $sys_gituser:$sys_gitgroup $GitLabProjectPath/custom_hooks/
+
+echo "The Project $GitlabProjectName has been configured"

README.md

+
+# How to automatically mirror a Gitlab project to Github
+
+Sometimes you need to auto-sync Gitlab repos to Github, so here's what you have to do.
+
+We need to add a post-receive hook in Gitlab's repo, on the Gitlab's server, which will trigger every time you do a push to the Gitlab's repo.
+
+To add the post-receive hook, you must follow the steps:
+
+1. Create the ssh-key for git user on the Gitlab server:
+```
+su git
+bash
+ssh-keygen
+cat ~/.ssh/id_rsa.pub
+```
+
+2. Add this pub key to Github with write access: https://github.com/Organization/RepoName/settings/keys
+
+3. Check the connection to GitHub on the Gitlab server:
+```
+su git
+ssh -T git@github.com
+```
+
+4. Run Gitlab2GithubMirror.sh script on the Gitlab server to configure your project.
+
+## Details
+```
+Usage:
+  sh Gitlab2GithubMirror.sh <GitlabNamespace> <GitlabProjectName> <GithubUser>
+
+Arguments:
+  GitlabNamespace:  Namespace on Gitlab Server
+  GitlabProjectName: Project name Gitlab Server
+  GithubUser: Github username
+
+Examples:
+  sh Gitlab2GithubMirror.sh MyNameSpace MyProject MyGithubUser
+
+```