Create Merge Reque in GitLab

#!/bin/bash

#### INSTALL ####
#1 - Defina as 3 variáveis abaixo
	# Gitlab api endpoint
	export GITLAB_API_ENDPOINT="https://gitlab.com/api/v4"
	# Get it in https://gitlab.com/profile/account
	export GITLAB_API_PRIVATE_TOKEN=""
	# Get it from https://gitlab.com/api/v3/projects/?private_token=YOUR_PROVATE_TOKEN
	export GITLAB_PROJECT_ID=""

#2 - Salve esse script na pasta .git/hooks do projeto com o nome gitla_merge_request
#3 - Execute os comandos:
	# chmod +x .git/hook/gitlab_merge_request
#4 - Registre um alias no git:
	# git config alias.merge-request '!sh .git/hooks/gitlab_merge_request'

# Como usar
# git merge-request <MESSAGE> <BRANCH>
# Exemplo: git merge-request "My first commit" master

# sudo gem install git gitlab first
if ! which gitlab >/dev/null 2>&1; then
    echo "gitlab command not found. Install gitlab gem first"
    echo "    sudo gem install git gitlab"
    exit 1
fi

if [ ! $GITLAB_PROJECT_ID ]; then
    echo "Define project id in GITLAB_PROJECT_ID environment variable"
    exit 1
fi

# Get current branch from GIT
branch_name=$(git symbolic-ref -q HEAD)
branch_name=${branch_name##refs/heads/}
branch_name=${branch_name:-HEAD}

BRANCH=$branch_name

# get branch target

BRANCH_TARGET="revamp"

if [ "$2" != "" ]; then
	BRANCH_TARGET=$2
fi

# [A-Z]+-[0-9]+ -
BRANCH_TAG="[`echo $BRANCH | sed "s/\([A-Z]*-[0-9]*\)\(.*\)/\1/"`]"

# get message
merge_request_title=$1

echo "Será realizar o merge request do branch $BRANCH para o branch $BRANCH_TARGET";

if [ "$merge_request_title" = '' ]; then
	echo "Você não digitou nenhuma mensagem."
	echo -n "Digite agora:  $BRANCH_TAG "
	read merge_request_title
fi

# enviar repositório
echo "Enviando o branch $BRANCH"
git push origin $BRANCH 2> /dev/null

echo "Criando o Merge Request"
MR=`gitlab create_merge_request $GITLAB_PROJECT_ID "'$BRANCH_TAG $merge_request_title'" "{source_branch: "$BRANCH", target_branch: "$BRANCH_TARGET", assignee_id: 611428, remove_source_branch: true}" | grep -oE "https://.+/[0-9]+"`
echo "URL para MERGE REQUEST: "$MR