commercialhaskell / Stack Templates

Status

This repository is not accepting new templates. See Stack documentation for instructions on providing templates to your users, for example, by publishing them on GitHub or an arbitrary URL.

Introduction

Project templates are written in hsfiles format, using mustache. Each file is specified with START_FILE, like this:

{-# START_FILE {{name}}.cabal #-}
name:                {{name}}
version:             0.1.0.0
...

Parameters to the template are written {{foo}}. They are provided by users via their ~/.stack/config.yaml file, like this:

templates:
  params:
    author-email: [email protected]
    author-name: Chris Done
    copyright: 2019 Chris Done
    github-username: chrisdone
    category: Development

When the user runs stack new myproject yourtemplate and they do not have the parameters provided in, it will warn the user that such parameters were missing, like this:

$ stack new foo new-template
Downloading template "new-template" to create project "foo" in foo/ ...
The following parameters were needed by the template but not provided: author-email, author-name
You can provide them in /home/chris/.stack/stack.yaml, like this:
templates:
  params:
    author-email: value
    author-name: value
Or you can pass each one as parameters like this:
stack new foo new-template -p "author-email:value" -p "author-name:value"

The output of the template will yield a blank space where your parameter was. If you want to provide default values for your template parameters, use this Mustache syntax:

author:              {{author-name}}{{^author-name}}Author name here{{/author-name}}

template-info.yaml

When contributing a new template, please remember to add a corresponding entry to template-info.yaml. Additional descriptive information for the template may be provided, but is not required.

Yesod templates

NOTE: The Yesod templates are generated from the yesod-scaffold repo. Please send pull requests for those templates to that repo instead.