github.com/jingweno/gh@v2.1.1-0.20221007190738-04a7985fa9a1+incompatible/script/cached-bundle (about)

     1  #!/usr/bin/env bash
     2  # Usage: cached-bundle install --deployment
     3  #
     4  # After running `bundle`, caches the `vendor/bundle` directory to S3.
     5  # On the next run, restores the cached directory before running `bundle`.
     6  # When `Gemfile.lock` changes, the cache gets rebuilt.
     7  #
     8  # Requirements:
     9  # - Gemfile.lock
    10  # - TRAVIS_REPO_SLUG
    11  # - TRAVIS_RUBY_VERSION
    12  # - AMAZON_S3_BUCKET
    13  # - script/s3-put
    14  # - bundle
    15  # - curl
    16  #
    17  # Author: Mislav Marohnić
    18  
    19  set -e
    20  
    21  compute_md5() {
    22    local output="$(openssl md5)"
    23    echo "${output##* }"
    24  }
    25  
    26  download() {
    27    curl --tcp-nodelay -qsfL "$1" -o "$2"
    28  }
    29  
    30  bundle_path="vendor/bundle"
    31  TRAVIS_RUBY_VERSION=`ruby -e "print RUBY_VERSION"`
    32  gemfile_hash="$(compute_md5 <"${BUNDLE_GEMFILE:-Gemfile}.lock")"
    33  cache_name="${TRAVIS_RUBY_VERSION}-${gemfile_hash}.tgz"
    34  fetch_url="http://${AMAZON_S3_BUCKET}.s3.amazonaws.com/${TRAVIS_REPO_SLUG}/${cache_name}"
    35  
    36  if download "$fetch_url" "$cache_name"; then
    37    echo "Reusing cached bundle ${cache_name}"
    38    tar xzf "$cache_name"
    39  fi
    40  
    41  bundle "$@"
    42  
    43  if [ ! -f "$cache_name" ]; then
    44    echo "Caching \`${bundle_path}' to S3"
    45    tar czf "$cache_name" "$bundle_path"
    46    script/s3-put "$cache_name" "${AMAZON_S3_BUCKET}:${TRAVIS_REPO_SLUG}/${cache_name}"
    47  fi