`gemfile:false` option no longer behaves as expected in YAML config

[arthurthefourth]

As of 0.65, when I run overcommit with gemfile: false in the config, I get the following error:

Problem loading 'false': my-code-directory/false not found

It seems like when #859 started using regex to parse the gemfile config instead of YAML, we ended up losing some nice YAML.parse functionality?

# .overcommit.yml
gemfile: false

# hook code
config = File.read('.overcommit.yml') =~ /gemfile: ['"]?(.*)['"]?/
gemfile = Regexp.last_match(1) # gemfile is now set to the (truthy) string "false"

if gemfile # this is triggered with gemfile = 'false'
  ENV['BUNDLE_GEMFILE'] = gemfile

  begin
    Bundler.setup
  rescue Bundler::BundlerError => e
    puts "Problem loading '#{gemfile}': #{e.message}" # Problem loading 'false'
    puts "Try running:\nbundle install --gemfile=#{gemfile}" if e.is_a?(Bundler::GemNotFound)
    exit 78 # EX_CONFIG
  end
end

[sds]

Heads up @xjunior: looks like this was introduced by #859.

[pilaf]

Having a similar problem since we had this line in our .overcommit.yml:

gemfile: Gemfile # enforce bundled version of overcommit

And now overcommit doesn't strip out the inline comment, resulting in this weird looking error message:

Problem loading 'Gemfile # enforce bundled version of overcommit': /path/to/project/Gemfile # enforce bundled version of overcommit not found

[mattbrictson]

@pilaf I fixed the gemfile: false issue, but not the inline comment problem that you mentioned. You might want to open a separate issue for that.

[pilaf]

@mattbrictson Thanks.

The issue in itself is not a big deal obviously since the comment can just be moved to the line above (which is what I did), but when I first encountered it I wasn't aware that overcommit was parsing that line on its own and the error message threw me down a misguided path of thinking Psych had changed how it parsed inline comments until I found this issue.

Perhaps a little comment in default.yml would be enough? I've opened a small PR for it: #865, but feel free to discard it of course.