Git pre-commit hook for linting and validating Cloudformation templates.

cloudformation pre-commit

#!/bin/sh
# Only Run If Any Cloudformation Template Is Modified And Checks Linting Of The Template
#------------------
RED='\033[0;31m'
GREEN='\033[0;32m'
NC='\033[0m'
#------------------

FILES=$(git diff --cached --name-only --diff-filter=ACMR "*.yml" "*.yaml" | sed 's| |\\ |g')

if [ -z "$FILES" ]; then
    exit 0
else
    echo "${GREEN}Linting Cloudformation Templates.....${NC}"
    echo "$PWD/$FILES" | xargs yamllint -c yamllint-rules
    testResults=$?
    if [ $testResults -gt 0 ]
        then
            echo "\n${RED}Template Linting Failed! Please fix the errors and try again${NC}\ngit commit ABORTED 🔥"
            exit 1
        else
            echo "${GREEN}SUCCESS!${NC}"
            # Run Cloudformation Template Validation locally. Make Sure you have AWS CLI Configured and Working properly
            echo "${GREEN}Validating Cloudformation Templates.....${NC}"
            echo "$PWD/$FILES" | xargs -t -I {} aws cloudformation validate-template --template-body file://{}  1> /dev/null
            validateResults=$?
            if [ $validateResults -gt 0 ]
            then
                echo "\n${RED}Template Validation Failed! Please fix the errors and try again${NC}\ngit commit ABORTED 🔥"
                exit 1
            else
                echo "${GREEN}SUCCESS!${NC}"
            fi
    fi


fi
exit 0