GistGenerator

Check out the sample.

I built this project as a learning experience. Eventually I would like to write a series of tutorials for my railsbyexample repos using this to generate the code sections within a static site. I wasn't able to find something similar.

This is still a test and I might change the API significantly in the future.

Add this line to your application's Gemfile:

gem 'gist_generator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install gist_generator

You can build the gists with GistGenerator::Generator.call:

  require 'gist_generator'

  GistGenerator::Generator.call([
    repo_path: 'username/package',
    gists: [
      {
        # path to the file you want to generate a gist for
        file_path: 'Gemfile',
        # line numbers (1-based), an array of ints or int ranges
        line_numbers: [1, 2, (8..10)],
        # A regex to select the version of the file by commit message, defaults to master
        commit_message_regex: /^Add activerecord/
      }
    ]
  ])

This will return an array of Gist objects, which expose:

• Gist#lines returns an array of the lines in the gist.
• Gist#line_numbers returns an array of the line numbers in the gist.
• Gist#numbered_lines returns a hash where the keys are the line numbers and the values are the contents of that line.

You can use the results directly and format them as you need them or use GistGenerator::Serializers::Pretty to convert them into a readable format. It accepts an array of Gist objects and an options hash. The only option currently supported is line_separator which is a string to denote trimmed lines:

  source 'https://rubygems.org'
  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  ruby '2.5.5'
  # ...

  # Use Puma as the app server
  gem 'puma', '~> 4.1'
  # Use SCSS for stylesheets
  # ...

The default line separator is for ruby (# ...\n\n).

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/perezperret/gist_generator.

The gem is available as open source under the terms of the MIT License.