Heroku Nanoc Buildpack

compile.sh

#!/usr/bin/env bash
# bin/compile <build-dir> <cache-dir>

# parse and derive params
BUILD_DIR=$1
CACHE_DIR=$2
BUILDPACK_DIR=`cd $(dirname $0); cd ..; pwd`


# =========> Nanoc
echo "-----> Compiling Nanoc Site"
export LANG=en_US.UTF-8

cd $BUILD_DIR
bundle exec nanoc

config.ru

# encoding: utf-8

require 'bundler'
Bundler.require

use Rack::ETag
module ::Rack
  class TryStatic < Static

    def initialize(app, options)
      super
      @try = ([''] + Array(options.delete(:try)) + [''])
    end

    def call(env)
      @next = 0
      while @next < @try.size && 404 == (resp = super(try_next(env)))[0]
        @next += 1
      end
      404 == resp[0] ? @app.call : resp
    end

    private
    def try_next(env)
      env.merge('PATH_INFO' => env['PATH_INFO'] + @try[@next])
    end

  end
end

use Rack::TryStatic,
    :root => "output",
    :urls => %w[/],
    :try  => ['.html', 'index.html', '/index.html']

errorFile = 'output/error/404-not_found/index.html'

run lambda {
  [404, {
    "Last-Modified"  => File.mtime(errorFile).httpdate,
    "Content-Type"   => "text/html",
    "Content-Length" => File.size(errorFile).to_s
    }, File.read(errorFile)
  ]
}

detect.sh

#!/usr/bin/env bash
# bin/detect <build-dir>

# this pack is valid for apps with config.yml and Rules in the root
if [ -f $1/config.yaml -o -f $1/nanoc.yaml ] && [ -f $1/Rules ]; then
  echo "Nanoc"
  exit 0
else
  exit 1
fi

Gemfile

# frozen_string_literal: true
source "https://rubygems.org"
ruby "2.3.1"

gem "thin"
gem "nanoc"

heroku-multiple-buildpack-setup.sh

heroku buildpacks:clear
heroku buildpacks:add heroku/ruby
heroku buildpacks:add https://github.com/anthonymoralez/heroku-buildpack-nanoc

nanoc.sh

$ nanoc
Loading site… done
Compiling site…
      create  [0.00s]  output/index.html
      create  [0.00s]  output/stylesheet.css

Site compiled in 0.02s.

Procfile

web: bundle exec thin start -p $PORT

push

$ git push -u heroku master   
Counting objects: 14, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (12/12), done.
Writing objects: 100% (14/14), 4.34 KiB | 0 bytes/s, done.
Total 14 (delta 2), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote: 
remote: -----> Ruby app detected
remote: -----> Compiling Ruby/Rack
remote: -----> Using Ruby version: ruby-2.3.1
remote: -----> Installing dependencies using bundler 1.13.7
remote:        Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
remote:        Fetching gem metadata from https://rubygems.org/..............
remote:        Fetching version metadata from https://rubygems.org/.
remote:        Installing colored 1.2
remote:        Installing daemons 1.2.4
remote:        Installing ddplugin 1.0.1
remote:        Installing concurrent-ruby 1.0.5
remote:        Installing ref 2.0.0
remote:        Installing eventmachine 1.2.3 with native extensions
remote:        Installing rack 2.0.1
remote:        Using bundler 1.13.7
remote:        Installing cri 2.8.0
remote:        Installing hamster 3.0.0
remote:        Installing nanoc 4.7.7
remote:        Installing thin 1.7.0 with native extensions
remote:        Bundle complete! 2 Gemfile dependencies, 12 gems now installed.
remote:        Gems in the groups development and test were not installed.
remote:        Bundled gems are installed into ./vendor/bundle.
remote:        Bundle completed (15.19s)
remote:        Cleaning up the bundler cache.
remote: -----> Detecting rake tasks
remote: 
remote: -----> Discovering process types
remote:        Procfile declares types     -> web
remote:        Default types for buildpack -> console, rake
remote: 
remote: -----> Compressing...
remote:        Done: 20.6M
remote: -----> Launching...
remote:        Released v4
remote:        https://polar-everglades-33448.herokuapp.com/ deployed to Heroku
remote: 
remote: Verifying deploy.... done.
To https://git.heroku.com/polar-everglades-33448.git
 * [new branch]      master -> master
Branch master set up to track remote branch master from heroku.

push-2

$ git push heroku
Counting objects: 2, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (2/2), 241 bytes | 0 bytes/s, done.
Total 2 (delta 1), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote: 
remote: -----> Ruby app detected
remote: -----> Compiling Ruby/Rack
remote: -----> Using Ruby version: ruby-2.3.1
remote: -----> Installing dependencies using bundler 1.13.7
remote:        Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
remote:        Using colored 1.2
remote:        Using concurrent-ruby 1.0.5
remote:        Using daemons 1.2.4
remote:        Using ddplugin 1.0.1
remote:        Using eventmachine 1.2.3
remote:        Using ref 2.0.0
remote:        Using rack 2.0.1
remote:        Using bundler 1.13.7
remote:        Using hamster 3.0.0
remote:        Using cri 2.8.0
remote:        Using nanoc 4.7.7
remote:        Using thin 1.7.0
remote:        Bundle complete! 2 Gemfile dependencies, 12 gems now installed.
remote:        Gems in the groups development and test were not installed.
remote:        Bundled gems are installed into ./vendor/bundle.
remote:        Bundle completed (0.27s)
remote:        Cleaning up the bundler cache.
remote: -----> Detecting rake tasks
remote: 
remote: -----> Nanoc app detected
remote: -----> Compiling Nanoc Site
remote: Loading site… done
remote: Compiling site…
remote:       create  [0.00s]  output/error/404-not_found/index.html
remote:       create  [0.00s]  output/index.html
remote:       create  [0.00s]  output/stylesheet.css
remote: 
remote: Site compiled in 0.01s.
remote: -----> Discovering process types
remote:        Procfile declares types -> web
remote: 
remote: -----> Compressing...
remote:        Done: 20.6M
remote: -----> Launching...
remote:        Released v6
remote:        https://polar-everglades-33448.herokuapp.com/ deployed to Heroku
remote: 
remote: Verifying deploy... done.
To https://git.heroku.com/polar-everglades-33448.git
   1259baf..2e1caf7  master -> master

tree

$ tree
.
├── Gemfile
├── Gemfile.lock
├── Procfile
├── Rules
├── content
│   ├── index.html
│   └── stylesheet.css
├── layouts
│   └── default.html
├── lib
├── nanoc.yaml
├── output
│   ├── index.html
│   └── stylesheet.css
└── tmp
    └── nanoc
        └── 1029d67644815
            ├── checksums
            ├── compiled_content
            ├── dependencies
            ├── outdatedness
            └── rule_memory

7 directories, 15 files