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Proof of concept that wraps semantic-release to work with monorepos.

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@qiwi/multi-semantic-release

hacky semantic-release for monorepos

Travis CI semantic-release Maintainability Test Coverage

This fork of dhoub/multi-semantic-release replaces setImmediate loops and execa.sync hooks with event-driven flow and finally makes possible to run the most release operations in parallel.
🎉 🎉 🎉

Install

yarn add @qiwi/multi-semantic-release --dev

Usage

multi-semantic-release

Configuring Multi-Semantic-Release

multi-semantic-release can be configured a number of ways:

  • A .multi-releaserc file, written in YAML or JSON, with optional extensions: .yaml/ .yml/ .json/ .js
  • A multi-release.config.js file that exports an object
  • A multi-release key in the workspace root package.json

Alternatively some options may be set via CLI flags.

Note: CLI arguments take precedence over options configured in the configuration file.

Options

Option Type CLI Flag Description
dryRun boolean --dry-run Dry run mode.
debug boolean --debug Output debugging information.
silent boolean --silent Do not print configuration information.
extends String | Array N/A List of modules or file paths containing a shareable configuration. If multiple shareable configurations are set, they will be imported in the order defined with each configuration option taking precedence over the options defined in the previous.
sequentialInit boolean --sequential-init Avoid hypothetical concurrent initialization collisions.
sequentialPrepare boolean --sequential-prepare Avoid hypothetical concurrent preparation collisions. True by default.
firstParent boolean --first-parent Apply commit filtering to current branch only.
ignorePrivate boolean --ignore-private Exclude private packages. True by default.
ignorePackages String | Array --ignore-packages Packages list to be ignored on bumping process (appended to the ones that already exist at package.json workspaces). If using the CLI flag, supply a comma seperated list of strings.
tagFormat String --tag-format Format to use when creating tag names. Should include "name" and "version" vars. Default: "${name}@${version}" which generates "[email protected]"
deps Object N/A Depedency handling, see below for possible values.

deps Options

Option Type CLI Flag Description
bump override | satisfy | inherit --deps.bump Define deps version updating rule. Allowed: override, satisfy, inherit. override by default.
release patch | minor | major | inherit --deps.release Define release type for dependent package if any of its deps changes. Supported values: patch, minor, major, inherit. patch by default
prefix '^' | '~' | '' --deps.prefix Optional prefix to be attached to the next version if bump is set to override. '' by default.

Examples

  • Via multi-release key in the project's package.json file:
{
	"multi-release": {
		"ignorePackages": [
			"!packages/b/**",
			"!packages/c/**"
		],
		"deps": {
			"bump": "inherit"
		}
	}
}
  • Via .multi-releaserc file:
{
	"ignorePackages": [
		"!packages/b/**",
		"!packages/c/**"
	],
	"deps": {
		"bump": "inherit"
	}
}
  • Via CLI:
$ multi-semantic-release --ignore-packages=packages/a/**,packages/b/** --deps.bump=inherit

Configuring Semantic-Release

MSR requires semrel config to be added in any supported format for each package or/and declared in repo root (globalConfig is extremely useful if all the modules have the same strategy of release).
NOTE config resolver joins globalConfig and packageConfig during execution.

// Load the package-specific options.
const { options: pkgOptions } = await getConfig(dir);

// The 'final options' are the global options merged with package-specific options.
// We merge this ourselves because package-specific options can override global options.
const finalOptions = Object.assign({}, globalOptions, pkgOptions);

Make sure to have a workspaces attribute inside your package.json project file. In there, you can set a list of packages that you might want to process in the msr process, as well as ignore others. For example, let's say your project has 4 packages (i.e. a, b, c and d) and you want to process only a and d (ignore b and c). You can set the following structure in your package.json file:

{
	"name": "msr-test-yarn",
	"author": "Dave Houlbrooke <[email protected]",
	"version": "0.0.0-semantically-released",
	"private": true,
	"license": "0BSD",
	"engines": {
		"node": ">=8.3"
	},
	"workspaces": [
      "packages/*",
      "!packages/b/**",
      "!packages/c/**"
	],
	"release": {
		"plugins": [
			"@semantic-release/commit-analyzer",
			"@semantic-release/release-notes-generator"
		],
		"noCi": true
	}
}

You can also ignore it with the CLI:

$ multi-semantic-release --ignore-packages=packages/b/**,packages/c/**

You can also combine the CLI ignore options with the ! operator at each package inside workspaces attribute. Even though you can use the CLI to ignore options, you can't use it to set which packages to be released – i.e. you still need to set the workspaces attribute inside the package.json.

Verified examples

We use this tool to release our JS platform code inhouse (GitHub Enterprise + JB TeamCity) and for our OSS (GitHub + Travis CI). Guaranteed working configurations available in projects.

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