deploy.sh

#!/bin/bash -x
# deploy.sh: -*- Shell-script -*-  Deploy this website to AWS S3
#
#  Copyright (c) 2019 Brian Fox
#  Copyright (c) 2019-2020 Nathan Handler
#  Authors: Brian Fox <bfox@brianjfox.com>, Nathan Handler <nhandler@orchid.com>
#  Birthdate: Mon Mar  4 14:03:59 2019.


function usage () {
    local exit_status="$1"
    echo "Usage:  deploy [staging | production ]"
    echo "Deploys the built website to the specified destination."
    exit $exit_status
}

function get-distribution-id() {
    local bucket="$1"
    distribution=$(aws cloudfront list-distributions | jq -r --arg bucket "$bucket" '.DistributionList.Items[] | select(.Aliases.Items[] | contains($bucket)) | .Id')
    echo "$distribution"
}

function upload-site() {
    local bucket="$1"
    local version="$2"
    echo "Uploading Website..."
    aws s3 sync --exclude 'deploy.sh' --exclude '.git/*' --exclude '.github/*'/* --acl public-read --delete ./ "s3://$bucket/$version"
}

function update-distribution() {
    local distribution="$1"
    local version="$2"
    echo "Updating CloudFront Distribution Config..."
    local config=$(aws cloudfront get-distribution-config --id "$distribution")
    local etag=$(echo "$config" | jq -r '.ETag')
    config=$(echo "$config" | jq -r --arg version "$version" '.DistributionConfig.Origins.Items[0].OriginPath = "/"+$version | del(.ETag) | .DistributionConfig')
    aws cloudfront update-distribution --id "$distribution" --distribution-config "$config" --if-match "$etag"
}

function wait-for-cloudfront() {
    local distribution="$1"
    echo "Waiting for CloudFront Distribution Deployment..."
    aws cloudfront wait distribution-deployed --id "$distribution"
}

function invalidate-cache() {
    local distribution="$1"
    echo "Invalidating CloudFront Cache..."
    AWS_MAX_ATTEMPTS=10 aws cloudfront create-invalidation --distribution-id "$distribution" --paths "/*"
}

function convert_to_dir() {
    for x in *-all-breakpoints.html
    do
        if [ "$x" != "home-all-breakpoints.html" ]
        then
            mkdir ${x%%-all-breakpoints.html}
            mv $x ${x%%-all-breakpoints.html}/index.html
            cp -r css ${x%%-all-breakpoints.html}
            cp -r img ${x%%-all-breakpoints.html}
            cp nav-overlay* ${x%%-all-breakpoints.html}
            sed -i -E "s/\"(.*)-all-breakpoints.html\"/..\/\1\//" ${x%%-all-breakpoints.html}/index.html
            sed -i -e "s/\.\.\/home/../" ${x%%-all-breakpoints.html}/index.html
        else
            mv home-all-breakpoints.html index.html
            sed -i -E "s/\"(.*)-all-breakpoints.html\"/.\/\1\//" index.html
            sed -i -e "s/\.\/home//" index.html
        fi
    done
}


function main() {
    while getopts "hl:s:v:" OPTION; do
        case $OPTION in
            h)
                usage 3
                ;;
            s)
                local stage=$OPTARG
                [[ ! $stage =~ ^staging$|^production$ ]] && {
                    echo "Incorrect stage specified!"
                    usage 3
                }
                ;;
            #v)
            #    local version=$OPTARG
            #    if [ -z ${version} ]; then  # If no version was specified with -v
	    #    version=$(git rev-parse --short "$GITHUB_SHA")
            #        #version=$(./version.sh | cut -d' ' -f3)
            #        echo "Version:  $version"
            #    fi
            #    ;;
            *)
                echo "Incorrect options provided!"
                usage 3
                ;;
        esac
    done

    if [ -z ${stage+x} ]; then
        echo "You must specify a stage to deploy to!"
        usage 3
    fi

    echo "Stage: $stage"
    echo "Version: $version"

    if [ "$stage" == "staging" ]; then
        local bucket="www.orchid.dev"
    elif [ "$stage" == "production" ]; then
        local bucket="www.orchid.com"
    elif [ "$stage" == "lol"]; then
	local bucket="www.orchid.lol"
    fi

    distribution=$(get-distribution-id "$bucket")

    if [ -z ${distribution} ]; then  # If no CloudFront distribution was acquired
        echo "Failed to determine CloudFront Distribution for bucket: ${bucket}"
        exit 1
    fi

    version=$(git rev-parse --short "$GITHUB_SHA")
    echo "Version:  $version"
    convert_to_dir
    upload-site "$bucket" "$version"
    update-distribution "$distribution" "$version"
    wait-for-cloudfront "$distribution"
    invalidate-cache "$distribution"
}

main "$@"