Write CI/CD Pipeline with Bash

pipeline.sh

#!/bin/bash
# Copyright (c) 2020, Saeid Bostandoust
# ssbostan@linuxmail.org
# https://b9t.ir
# All rights reserved.

PIPELINE_PROJECT_NAME="YOUR-PROJECT-NAME"
if [[ ! -d "./$PIPELINE_PROJECT_NAME" ]]; then
    git clone YOUR-GIT-ADDRESS
fi
git -C ./$PIPELINE_PROJECT_NAME pull > /dev/null
touch .lastcommit
PIPELINE_LAST_COMMIT=$(cat .lastcommit)
PIPELINE_REAL_COMMIT=$(git -C ./$PIPELINE_PROJECT_NAME rev-parse --short HEAD 2> /dev/null || echo 0)
if [[ "$PIPELINE_LAST_COMMIT" != "$PIPELINE_REAL_COMMIT" ]]; then
    echo $PIPELINE_REAL_COMMIT > .lastcommit
    # Write your code here.
fi