semantic-release-heroku

semantic-release plugin. Provides the ability to publish Heroku apps.

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Requirements
Installation
Usage
Contribute

Requirements

To use library you need to have node and npm installed in your machine:

node >=10
npm >=6

Package is continuously tested on darwin, linux and win32 platforms. All active and maintenance LTS node releases are supported.

This package is shipped as semantic-release plugin, so you need to have semantic-release installed and configured.

Installation

To install the library, run the following command:

  npm i --save-dev semantic-release-heroku

Usage

The plugin can be configured in the semantic-release configuration file:

{
  "plugins": [
    "@semantic-release/commit-analyzer",
    "@semantic-release/release-notes-generator",
    "semantic-release-heroku"
  ]
}

This is a minimal usage sample with a default configuration.

Configuration

if needed, the configuration can be extended:

{
  "plugins": [
    "@semantic-release/commit-analyzer",
    "@semantic-release/release-notes-generator",
    ["semantic-release-heroku", {
      "name": "funny-app",
      "npmVersion": false,
      "tarballDir": "./dist"
    }]
  ]
}

Config attribute description:

Option	Required	Type	Description	Default
`name`	no	`string`	Heroku application name.	name from package.json
`npmVersion`	no	`boolean`	Whether to update package.json and package-lock with new version value	`false`, package.json won't be touched
`tarballDir`	no	`string`	Path to directory, where you can keep generated tarball.	Tarball will be generated into os /tmp directory
`branches`	no	`array`	The branches on which releases should happen. See details on branches configuration.	-

branches

semantic-release allow to manage and automate complex release workflows. You can vary plugin settings based on the target branch. Use the branches keyword for this:

Skip specific branch from heroku deploy:

 "branches": ["master", "next"],
 "plugins": [
     "@semantic-release/commit-analyzer",
     "@semantic-release/release-notes-generator",
     [ 
         "semantic-release-heroku", {
             "branches": ["master"]
         } 
     ]
 ]

here semantic release will run both master and next branches, but semantic-release-heroku will skip the next branch.

Use different plugin settings for contrasting branches. You can override any setting on the branch level. See example for custom app names:

[ 
   "semantic-release-heroku", {
       "branches": [
         "master", 
         { "branch": "next", "name": "staging-app" }
       ],
       "name": "production-app",
       "npmVersion": true
   } 
]

here for both master and next branches package.json version will be updated ("npmVersion": true). But Heroku apps will have different names (staging-app for next and production-app for master )

Authentication

In order to publish stuff to Heroku, you should obtain the Heroku API token. The easiest way to achieve this is to open profile page and reveal the API key.

If you already have an API key, add it as an environment variable:

  HEROKU_API_KEY='<uuid>'

Contribute

Make the changes to the code and tests. Then commit to your branch. Be sure to follow the commit message conventions. Read Contributing Guidelines for details.

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