Running from procfile w/ API - nothing happens

[haf]

I have a procfile:

---
statics: ./tools/watch_static.rb

And the file:

#!/usr/bin/env ruby

require 'set'
require 'filewatcher'
require 'fileutils'

puts 'starting...'
FileWatcher.new(['src/example.com/css/*', 'src/example.com/*'], true).watch do |file_path, evt|
  if File.directory? file_path
    puts "dir: #{file_path}"
  else
    rel  = file_path.gsub 'src/example.com', ''
    targ = File.join('build/example.com', rel)
    puts "copying #{file_path} to #{targ}"
    begin
      FileUtils.cp file_path, targ
    rescue => e
      puts e
    end
  end
end

And a Gemfile:

source 'https://rubygems.org'

group :dev do
  gem 'foreman'
  gem 'filewatcher'
end

gem 'albacore', '~> 2'

This is the output:

✗ bundle exec foreman start
10:18:18 statics.1 | started with pid 3232

(nothing at the end, that is)

If I start it manually:

➜  example.com git:(feature/app-design) ✗ ./tools/watch_static.rb
starting...
Watching:
src/example.com/css/app.css
src/example.com/css/grid.css
src/example.com/css/main.css
src/example.com/css/normalize.css
src/example.com/css/splash.css
src/example.com/api
src/example.com/app.html
src/example.com/css
src/example.com/fonts
src/example.com/img
src/example.com/index.html
src/example.com/js
src/example.com/node_modules
src/example.com/package.json
src/example.com/README.md
src/example.com/webpack.config.js

With appropriate output if I change a file...

I've tried running foreman with bundler. Foreman without bundler. Both act the same. From within foreman I've tried statics: sh -c './tools/watch_static.rb', bundle exec ruby tools/watch_static.rb and any other combo I can think of. If I print PATH from before the running of the file on the 'statics' row, it prints a valid RBENV-based path which has FileWatcher in its downloaded set of gems. Any other program I run with Procfile works.

I'm on OS X, ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0], and this lockfile:

GEM
  remote: https://rubygems.org/
  specs:
    albacore (2.3.22)
      map (~> 6.5)
      nokogiri (~> 1.5)
      rake (~> 10)
      semver2 (~> 3.4)
    filewatcher (0.5.0)
      trollop (~> 2.0)
    foreman (0.78.0)
      thor (~> 0.19.1)
    map (6.5.5)
    mini_portile (0.6.2)
    nokogiri (1.6.6.2)
      mini_portile (~> 0.6.0)
    rake (10.4.2)
    semver2 (3.4.2)
    thor (0.19.1)
    trollop (2.1.2)

So I'm running out of ideas now. Do you have any pointers?

[thomasfl]

Hi, I haven''t had the time to try this out myself. But have you considered downgrading filewatcher til version 0.4? The latest version contains some stuff from a pull request, that I haven't tested fully.

[haf]

Yes, I have. I upgraded just before filing this issue to ensure it wasn't a version problem.

[thomasfl]

This answer is a bit late, but I know what your problem is. Your watcher script works just fine, it just don't outputs to stdout, so you just don't see any output in your console.

If you add this line to the top of you watcher script, you should see some output in your console:

$stdout.sync = true

[haf]

@thomasfl thank you! I didn't know about that flag.