MarkdownTree is a Ruby gem that generates a directory structure in Markdown format. It is highly configurable, allowing you to exclude specific folders, choose the root directory, and specify the output file name.

You can install the gem and add it to your application's Gemfile by executing:

bundle add markdown_tree

If bundler is not being used to manage dependencies, install the gem by executing:

gem install markdown_tree

To generate the directory structure in Markdown format from the current directory, simply call the generate_tree method:

require 'markdown_tree'

MarkdownTree.generate_tree

You can configure which folders to exclude from the generated structure:

MarkdownTree.configure do |config|
  config.exclude_list = ['node_modules', '.git', 'tmp']
end

MarkdownTree.generate_tree

You can also specify the directory from which you want to generate the structure:

MarkdownTree.configure do |config|
  config.root_directory = '/path/to/your/directory'
end

MarkdownTree.generate_tree

You can set the name of the file where the directory structure will be saved:

MarkdownTree.configure do |config|
  config.output_file = 'custom_directory_structure.md'
end

MarkdownTree.generate_tree

If you're using Rails, you can configure all these options in an initializer:

# config/initializers/markdown_tree.rb
MarkdownTree.configure do |config|
  config.exclude_list = ['node_modules', '.git', 'tmp']  # Directories to exclude
  config.root_directory = Rails.root.join('app').to_s     # Root directory to start generating structure
  config.output_file = 'custom_directory_structure.md'    # Output file name
end

Contribution directions go here. You can fork the repository, create a new branch, and submit a pull request for review. Please make sure to write tests for your contributions and follow the coding standards set in the project.

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