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Retype docs buildpack for Heroku

This is a buildpack intended to build documentation out of a repository containing a Retype project.

Quick start guide

The guide will show how to deploy the Retype Website in your custom app using the commandline and the Heroku CLI

  1. Clone the repository
git clone https://github.com/retypeapp/retype
cd retype
  1. Login to Heroku (you can skip it if already logged in)
heroku login
  1. Create a new app in Heroku
heroku create my-app-name

Note: Replace my-app-name with the app name you want to allocate in Heroku 4. Set up the app to use retype buildpack

heroku buildpacks:set 'https://github.com/retypeapp/heroku-buildpack'
  1. Push the repo to Heroku
git push heroku main

Pro Tip: If Heroku asks for password during the git command, use username blank and for the password, the key heroku informs via heroku auth:token.

When this step is done, you will then be able to access the fresh Retype website hosted in Heroku via https://.herokuapp.com

Note: Remember to replace my-app-name with your unique app name in Heroku. If the name is already taken, you'd need to use a different one.

Buildpack config vars

The Retype Buildpack accepts the following config vars to set up specific aspects of the running app. You can set config vars via Heroku web interface, in the app's Settings tab or via the heroku config CLI command

DOTNET_VERSION

Specifies the .NET version to use during build.

RETYPE_CONFIG

Specifies the path to Retype's configuration file. By default the build pack will look for retype.yml, retype.yaml, and retype.json in the repository's root, then search everywhere within the repo for the file. If this option is present, no search will be attempted even if the path is invalid.

  • If the path points to a directory, it will check whether there's a Retype config file therein.
  • If the path points to a file, it will tell the Retype CLI that file is to be used as the configuration file, so it is possible to use a different retype config file for the Heroku environment than the one used elsewhere.

RETYPE_VERSION

Specifies the Retype version to use. Without this, the buildpack should use the Retype version specified in the Buildpack files. Usually the default branch of the buildpack will have the latest version, updated every Retype release.

Troubleshooting

The app is not accessible in after push

We received some reports that the default - US - location may not be accessible for some people. If that's the case, there's a chance creating the app in the EU (Europe) region fixes the problem. To specify the region specify the create command like this:

heroku create my-app-name --region eu

The repository does not have a heroku remote

When you create the heroku app, the Heroku CLI will automatically assign the necessary git configs for you. But in case the app was created from the Heroku website, or created before the repository was cloned or outside the repository, you may need to add that configuration.

To do so, simply issue the command, when in the repository root:

heroku git:remote --app my-app-name

Heroku does not recognize my app as a Retype App

There are two main reasons this may happen in your app:

  • the buildpack was not set: ensure buildpacks:set command was accepted (step 4 in quick start guide). Alternatively, the buildpack can be set via Heroku's web interface in the app's Settings tab.

  • in order for the buildpack to detect and build the retype project, it requires a retype.json file somewhere within the repository. You can create a default copy of the file via the retype init command (see Retype's Getting Started guide if you don't have Retype CLI installed).

Other ways to publish a retype docs to Heroku

Heroku offers a range of configuration options and integrations besides the approach covered in the Quick Start Guide above:

Note: No matter what the chosen approach is, the Retype BuildPack (step 4 in quick start guide) must be set, unless the goal is to host the built static files directly, where another third party static files serving buildpack should be used. Heroku has an official, but experimental, buildpack for static files.

To-do

  • Avoid rebuilds / redownloads (effectively use Heroku Cache)
  • Trigger rebuild of dependencies if the cached ones don't match the desired version (zlib, lpcre, lighttpd, retype, dotnet)
  • Set up mime-db for arbitrary file mime types
  1. Set up Retype in the repo by adding a configuration file