Put into a directory that is in $PATH. Then run "git deploy {branch}" to push current branch into it.

git-deploy.sh

#!/usr/bin/env bash

## Deploy branch into "develop" branch
##
## Usage:
## 
## git deploy production
##

## Save Original Branch
ORIGINAL_BRANCH=$(git symbolic-ref --short HEAD)
PARENT_TARGET=$(git show-branch -a | awk -F'[]^~[]' '/\*/ && !/'"$ORIGINAL_BRANCH"'/ {print $2;exit}');

if [ -n "${1}" ]; then 
  PARENT_BRANCH=${1};
else 
  PARENT_BRANCH=${PARENT_TARGET/origin\//}
fi

echo "Deploying [${ORIGINAL_BRANCH}] into [${PARENT_BRANCH}]."

## Checkout target branch "develop"
git checkout ${PARENT_BRANCH}

## Pull down develop branch
git pull

## Merge our original branch into the develop branch
git merge origin/$ORIGINAL_BRANCH -m  "Deploying [${ORIGINAL_BRANCH}] into [${PARENT_BRANCH}]."

## Push to develop
git push

## Checkout our original branch again
git checkout ${ORIGINAL_BRANCH}