Add some rebund ❤️ to speed up TravisCI builds.

.travis.yml

@@ -1,23 +1,30 @@
 language: ruby
 cache: bundler
 before_install:
-  - gem install bundler
+- gem install bundler
+install:
+- script/rebund download
+- bundle install --path vendor/bundle
 rvm:
-  - 2.1.0
-  - 2.0.0
-  - 1.9.3
-  - 1.9.2
-script: bundle exec rake
+- 2.1.0
+- 2.0.0
+- 1.9.3
+- 1.9.2
+script: script/cibuild
+after_script:
+- script/rebund upload
 notifications:
   irc:
     on_success: change
     on_failure: change
     channels:
-      - "irc.freenode.org#jekyll"
-    #on_success: change
-    #on_failure: change
+    - irc.freenode.org#jekyll
     template:
-      - "%{repository}#%{build_number} (%{branch}) %{message} %{build_url}"
+    - '%{repository}#%{build_number} (%{branch}) %{message} %{build_url}'
   email:
     on_success: never
     on_failure: never
+env:
+  global:
+  - secure: DQ8RKNaeErucKnmOWKxWHQ76GBr50wNf2ywz/kQtriXpvXEhD3zVJus0jC34ykCK4CqW2WBha8nO4NtmPJRVII5qHyJB2+pxheMK++UZ2+mJ+8CVbqtcjpMZMkfRJj0C9rktG7Onk9QANZGIBf79HPnhZXjKqX9XFwI1tbyl3kw=
+  - secure: gG7GIWmdzbAv/qt9RyE96M/BNGMWhrVkQIL5cKZ0N4rwuAZzfqays9EE+jF9Nu1IwG6bfTUu7C75vzQnJkL8zBq5ddsQCJ+DIhh4o4QqsTwh4/0uiRMG87EBa2ASKn4afx181fXOUoGZtcbMqfEW0Eaidl4Z+8qEx4KxVghRlx8=

script/rebund

@@ -0,0 +1,140 @@
+#!/bin/bash
+#
+# rebund(1)
+# 
+# Author: Julien Letessier
+# Homepage: https://github.com/mezis/rebund
+# License:
+#
+# Copyright (c) 2014 HouseTrip Ltd
+#
+# MIT License
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+# Configuration
+: ${REBUND_CREDENTIALS:=user:secret}
+: ${REBUND_ENDPOINT=http://keyfile-production.herokuapp.com}
+: ${REBUND_TARBALL:=bundle.tbz}
+: ${REBUND_BUNDLE_DIR:=vendor/bundle}
+
+
+
+log() {
+  echo "rebund: $*" > /dev/stderr
+}
+
+die() {
+  echo "fatal: $*" > /dev/stderr
+  exit 1
+}
+
+success() {
+  log "$*"
+  exit 0
+}
+
+on_error() {
+  die 'unknown error.'
+}
+
+get_ruby_version() {
+  bundle exec ruby --version
+}
+
+get_gemfile() {
+  bundle exec sh -c 'echo $BUNDLE_GEMFILE'
+}
+
+calculate_hash() {
+  (get_ruby_version ; cat $(get_gemfile)) | openssl sha256 | sed -e 's/.* //'
+}
+
+build_tarball() {
+  test -e $REBUND_BUNDLE_DIR || die "cannot find bundle directory in ${REBUND_BUNDLE_DIR}"
+  test -e $REBUND_TARBALL && success 'bundle already uploaded'
+  tar jcf $REBUND_TARBALL $REBUND_BUNDLE_DIR
+}
+
+upload_tarball() {
+  curl --fail \
+    -F filedata=@${REBUND_TARBALL} \
+    --digest --user $REBUND_CREDENTIALS \
+    ${REBUND_ENDPOINT}/$(calculate_hash) \
+  || success "could not upload bundle"
+}
+
+expand_tarball() {
+  test -e $REBUND_TARBALL || success "no tarball"
+  tar jxf $REBUND_TARBALL
+}
+
+download_tarball() {
+  curl --fail \
+    --location \
+    -o ${REBUND_TARBALL} \
+    --digest --user $REBUND_CREDENTIALS \
+    ${REBUND_ENDPOINT}/$(calculate_hash) \
+    || success "could not download bundle"
+}
+
+rebund_upload() {
+  build_tarball
+  upload_tarball
+}
+
+rebund_download() {
+  download_tarball
+  expand_tarball
+}
+
+rebund_usage() {
+  success "usage: $0 [-v] [upload|download]"
+}
+
+# cath errors
+trap on_error ERR
+
+# inherit the ERR trap in subprocesses
+set -E
+
+while test $# -gt 0 ; do
+  case $1 in
+    -v)
+      set -x
+      ;;
+    upload)
+      rebund_upload
+      exit 0
+      ;;
+    download)
+      rebund_download
+      exit 0
+      ;;
+    *)
+      rebund_usage
+      exit 1
+      ;;
+  esac
+  shift
+done
+
+rebund_usage