Use travi-ci's new docker infrastructure + caching

.travis.yml

@@ -1,18 +1,14 @@
+sudo: false
 language: ruby
 env:
   matrix:
   - APP_SECRET_TOKEN=b2724973fd81c2f4ac0f92ac48eb3f0152c4a11824c122bcf783419a4c51d8b9bba81c8ba6a66c7de599677c7f486242cf819775c433908e77c739c5c8ae118d
-  global:
-  - AMAZON_S3_BUCKET=huginn-bundle-cache
-  - AMAZON_ACCESS_KEY_ID=AKIAITMDBT3BL3ZWVFGA
-  - secure: JbDX6yVP+Q32FOl7UmB7bBxaEGDNYd3IlfDACmdRHkf23yRa4RvQD1U1Gu8kh8c5Els2VvzUWEkv7VjJWNgxVJFnbGbqbnIrbdEhGMTwXnJjpuzAx2+TWuXUEGFeZVqtNqtxSW1r/CCAFYtWpnX0jW27wLQvRitY1r/BqiXXDgc=
 rvm:
 - 2.0.0
-- 2.1.4
+- 2.1.5
 - 1.9.3
-before_install:
-- travis_retry gem install bundler
-install: travis_retry script/cached-bundle install --without development production --deployment
+cache: bundler
+bundler_args: --without development production
 before_script:
 - mysql -e 'create database huginn_test;'
 - bundle exec rake db:migrate db:test:prepare

script/cached-bundle

@@ -1,47 +0,0 @@
-#!/usr/bin/env bash
-# Usage: cached-bundle install --deployment
-#
-# After running `bundle`, caches the `vendor/bundle` directory to S3.
-# On the next run, restores the cached directory before running `bundle`.
-# When `Gemfile.lock` changes, the cache gets rebuilt.
-#
-# Requirements:
-# - Gemfile.lock
-# - TRAVIS_REPO_SLUG
-# - TRAVIS_RUBY_VERSION
-# - AMAZON_S3_BUCKET
-# - script/s3-put
-# - bundle
-# - curl
-#
-# Author: Mislav Marohnić
-
-set -e
-
-compute_md5() {
-  local output="$(openssl md5)"
-  echo "${output##* }"
-}
-
-download() {
-  curl --tcp-nodelay -qsfL "$1" -o "$2"
-}
-
-bundle_path="vendor/bundle"
-gemfile_hash="$(compute_md5 <"${BUNDLE_GEMFILE:-Gemfile}.lock")"
-#cache_name="${TRAVIS_RUBY_VERSION}-${gemfile_hash}.tgz"
-cache_name="${TRAVIS_RUBY_VERSION}.tgz"
-fetch_url="http://${AMAZON_S3_BUCKET}.s3.amazonaws.com/${cache_name}"
-
-if download "$fetch_url" "$cache_name"; then
-  echo "Reusing cached bundle ${cache_name}"
-  tar xzf "$cache_name"
-fi
-
-bundle "$@"
-
-if [ ! -f "$cache_name" ]; then
-  echo "Caching \`${bundle_path}' to S3"
-  tar czf "$cache_name" "$bundle_path"
-  script/s3-put "$cache_name" "${AMAZON_S3_BUCKET}:${cache_name}"
-fi

script/s3-put

@@ -1,71 +0,0 @@
-#!/usr/bin/env bash
-# Usage: s3-put <FILE> <S3_BUCKET>[:<PATH>] [<CONTENT_TYPE>]
-#
-# Uploads a file to the Amazon S3 service.
-# Outputs the URL for the newly uploaded file.
-#
-# Requirements:
-# - AMAZON_ACCESS_KEY_ID
-# - AMAZON_SECRET_ACCESS_KEY
-# - openssl
-# - curl
-#
-# Author: Mislav Marohnić
-
-set -e
-
-authorization() {
-  local signature="$(string_to_sign | hmac_sha1 | base64)"
-  echo "AWS ${AMAZON_ACCESS_KEY_ID?}:${signature}"
-}
-
-hmac_sha1() {
-  openssl dgst -binary -sha1 -hmac "${AMAZON_SECRET_ACCESS_KEY?}"
-}
-
-base64() {
-  openssl enc -base64
-}
-
-bin_md5() {
-  openssl dgst -binary -md5
-}
-
-string_to_sign() {
-  echo "$http_method"
-  echo "$content_md5"
-  echo "$content_type"
-  echo "$date"
-  echo "x-amz-acl:$acl"
-  printf "/$bucket/$remote_path"
-}
-
-date_string() {
-  LC_TIME=C date "+%a, %d %h %Y %T %z"
-}
-
-file="$1"
-bucket="${2%%:*}"
-remote_path="${2#*:}"
-content_type="$3"
-
-if [ -z "$remote_path" ] || [ "$remote_path" = "$bucket" ]; then
-  remote_path="${file##*/}"
-fi
-
-http_method=PUT
-acl="public-read"
-content_md5="$(bin_md5 < "$file" | base64)"
-date="$(date_string)"
-
-url="https://$bucket.s3.amazonaws.com/$remote_path"
-
-curl -qsSf -T "$file" \
-  -H "Authorization: $(authorization)" \
-  -H "x-amz-acl: $acl" \
-  -H "Date: $date" \
-  -H "Content-MD5: $content_md5" \
-  -H "Content-Type: $content_type" \
-  "$url"
-
-echo "$url"