slugbuilder/rootfs/builder/install-buildpacks at b4c53b655c9cd712471995967791dc9b0df5b647 · kingdonb/slugbuilder · GitHub

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#!/usr/bin/env bash
set -eo pipefail

BUILDPACK_INSTALL_PATH="/tmp/buildpacks"

download_buildpack() {
    buildpack_url="$1"
    buildpack_commit="$2"
    buildpack_name="$3"

    echo "Fetching $buildpack_name..."

    set +e
    git clone --branch "$buildpack_commit" --depth 1 "$buildpack_url" $BUILDPACK_INSTALL_PATH/"$buildpack_name" &>/dev/null
    SHALLOW_CLONED=$?
    set -e
    if [ $SHALLOW_CLONED -ne 0 ]; then
        # if the shallow clone failed partway through, clean up and try a full clone
        rm -rf "${BUILDPACK_INSTALL_PATH:?}"/"$buildpack_name"
        git clone --quiet "$buildpack_url" $BUILDPACK_INSTALL_PATH/"$buildpack_name"
        pushd $BUILDPACK_INSTALL_PATH/"$buildpack_name" &>/dev/null
            git checkout --quiet "$buildpack_commit"
        popd &>/dev/null
    fi

    echo "Done."
}

mkdir -p $BUILDPACK_INSTALL_PATH

download_buildpack https://github.com/heroku/heroku-buildpack-multi.git          v1.0.0   01-multi
download_buildpack https://github.com/heroku/heroku-buildpack-clojure.git        v86      02-clojure
download_buildpack https://github.com/heroku/heroku-buildpack-go.git             v149     03-go
download_buildpack https://github.com/heroku/heroku-buildpack-gradle.git         v33      04-gradle
download_buildpack https://github.com/heroku/heroku-buildpack-grails.git         v21      05-grails
download_buildpack https://github.com/heroku/heroku-buildpack-java.git           v68      06-java
download_buildpack https://github.com/heroku/heroku-buildpack-nodejs.git         v181     07-nodejs
download_buildpack https://github.com/heroku/heroku-buildpack-php.git            v187     08-php
download_buildpack https://github.com/heroku/heroku-buildpack-play.git           v26      09-play
download_buildpack https://github.com/heroku/heroku-buildpack-python.git         v187     10-python
download_buildpack https://github.com/heroku/heroku-buildpack-ruby.git           v222     11-ruby
download_buildpack https://github.com/heroku/heroku-buildpack-scala.git          v88      12-scala