Rails version of docs decomposer
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Docs Decomposer

The Docs Decomposer is an inventory tool for documentation at Puppet Labs. With it, you can:

  • Import the pages and content from a given Puppet Labs project or upstream.
  • Flag, comment on, tag, and assign risk/priority to each page
  • Review each page with the option to quickly reveal only:
    • Heading structure (h-tags)
    • Code and command line examples/steps (pre/code elements)
    • Procedures (ordered, unordered lists)
    • Screenshots (images)

It supports multiple users, each of which can leave comments or set flags under their own identity. Users designated as an "admin" can set the risk or priority of a page and also add/remove tags.


Clone puppetlabs/puppet-docs and puppetlabs/puppet-docs-private repos

The tool depends on the puppetlabs/puppet-docs and puppetlabs/puppet-docs-private repos to import content into its database:

cd repos
git clone git@github.com:puppetlabs/puppet-docs-private.git
git clone git@github.com:puppetlabs/puppet-docs.git

Install the Gems

# bundle install --path vendor/bundle

Configure the import tools

The config/application.rb file contains settings that drive which content is imported into the tool:

The docs.projects setting uses the directory name and version numbers of projects as found in the docs repo to drive which projects and versions are captured:

config.docs.projects = {'pe' => ['3.7','3.3'], 'puppet' => ['3.7', '4.0']}

The docs.dev_project setting sets which directory in the private repo is being used to do work on the next release. In the case of Puppet Enterprise 3.8, that's PE 3.7.

config.docs.dev_project = {'pe' => '3.7'}

Note: If the docs workflow ever changes to creating the new release under its own version name/number, the release number value will need to change to reflect the directory the work is being done in.

The config.docs.dev_project_number setting sets how the tool will report the version number of the development release:

config.docs.dev_project_number = "3.8-dev"

Create the database, perform migrations

To create the database and establish the initial tables:

# bundle exec RAILS_ENV=production rake db:migrate

Import content from the private repo

Use the scripts/dev_file_importer.rb script to import content from the private repo.

# bundle exec RAILS_ENV=production rails r scripts/dev_file_importer.rb

Note: This is clunky and needs to be fixed. This is how it works for now.

Run the setup rake tasks

The tool has a few rake tasks to help with setup once the app is cloned and you've run rake db:migrate. The setup:import_content task will handle refreshing the two docs repos, moving the correct content into place, and importing HTML from either live or preview servers.

# bundle exec RAILS_ENV=production rake setup:import_content

Start the app

The tool uses the unicorn-rails gem to make sure Rails is using Unicorn. All that's required to get it running is:

# bundle exec RAILS_ENV=production rake assets:precompile
# bundle exec rails s -e production -d


Visit the app's /docs URL for a manual on usage.