public gist for bash.

bash.sh

#!/bin/bash

SUBDOMAIN_SUFFIX=$1
REGION=$2
env=$3

if [[ $env == "dev" ]]
then
    # Get list of directories modified in current commit.
    LIST_OF_DIRS=$(git diff --dirstat=files,0 HEAD~2 | awk '{print $2}' | cut -d '/' -f 1 | uniq)
    CURR_DIR=$(echo $(pwd))
    for i in $LIST_OF_DIRS
    do 
        cd $CURR_DIR
        cd $i 
        echo "current dir is $(pwd)"
        echo $SUBDOMAIN_SUFFIX
        npm install
        npm run build
        ls -la
        S3_BUCKET=dev-$i-$SUBDOMAIN_SUFFIX
        aws s3 cp build s3://$S3_BUCKET/ --recursive --region $REGION
    done
else 
    # Get list of directories modified in current commit.
    LIST_OF_DIRS=$(git diff --dirstat=files,0 HEAD~2 | awk '{print $2}' | cut -d '/' -f 1 | uniq)
    CURR_DIR=$(echo $(pwd))
    for i in $LIST_OF_DIRS
    do 
        cd $CURR_DIR
        cd $i 
        echo "current dir is $(pwd)"
        echo $SUBDOMAIN_SUFFIX
        npm install
        npm run build
        ls -la
        S3_BUCKET=$i-$SUBDOMAIN_SUFFIX
        aws s3 cp build s3://$S3_BUCKET/ --recursive --region $REGION
    done   
fi