syncpack

What is syncpack?

Syncpack is a tool for managing multiple package.json files in a monorepo or multi-package repository. It helps ensure consistency across dependencies, scripts, and other configurations.

What are syncpack's main functionalities?

List Dependencies

Lists all dependencies across multiple package.json files, helping you identify inconsistencies.

const { list } = require('syncpack');
list();

Fix Versions

Fixes version mismatches across multiple package.json files, ensuring all packages use the same version of a dependency.

const { fix } = require('syncpack');
fix();

Set Version

Sets a specific version for a dependency across all package.json files.

const { set } = require('syncpack');
set('react', '17.0.2');

Format

Formats all package.json files to ensure a consistent style.

const { format } = require('syncpack');
format();

Other packages similar to syncpack

lerna

Lerna is a tool for managing JavaScript projects with multiple packages. It optimizes the workflow around managing multi-package repositories with git and npm. Compared to Syncpack, Lerna offers more comprehensive features for managing monorepos, including versioning and publishing.

yarn

Yarn is a package manager that doubles down as a project manager. It offers workspaces that can manage multiple packages within a single repository. While Syncpack focuses on consistency across package.json files, Yarn provides a broader set of features for dependency management and project workflows.

pnpm

pnpm is a fast, disk space-efficient package manager. It also supports workspaces for managing multiple packages in a monorepo. Compared to Syncpack, pnpm is more focused on performance and efficient storage, while Syncpack is specialized in ensuring consistency across package.json files.

README

syncpack

Summary

Manage multiple package.json files, such as packages/*/package.json in Lerna Monorepos.

Installation

npm install --global syncpack

Commands

fix-mismatches

Ensure that multiple packages requiring the same dependency define the same version, so that every package requires eg. react@16.4.2, instead of a combination of react@16.4.2, react@0.15.9, and react@16.0.0.

Options

-s, --source [pattern]  glob pattern for package.json files to read from
-p, --prod              include dependencies
-d, --dev               include devDependencies
-P, --peer              include peerDependencies
-i, --indent [value]    override indentation. defaults to "  "
-h, --help              output usage information

Examples

# uses packages defined in lerna.json by default
syncpack fix-mismatches
# uses packages defined by --source when provided
syncpack fix-mismatches --source "apps/*/package.json"
# multiple globs can be provided like this
syncpack fix-mismatches --source "apps/*/package.json" --source "core/*/package.json"
# only fix "devDependencies"
syncpack fix-mismatches --dev
# only fix "devDependencies" and "peerDependencies"
syncpack fix-mismatches --dev --peer
# indent package.json with 4 spaces instead of 2
syncpack fix-mismatches --indent "    "

format

Organise package.json files according to a conventional format, where fields appear in a predictable order and nested fields are ordered alphabetically. Shorthand properties are used where available, such as the "repository" and "bugs" fields.

Options

-s, --source [pattern]  glob pattern for package.json files to read from
-i, --indent [value]    override indentation. defaults to "  "
-h, --help              output usage information

Examples

# uses packages defined in lerna.json by default
syncpack format
# uses packages defined by --source when provided
syncpack format --source "apps/*/package.json"
# multiple globs can be provided like this
syncpack format --source "apps/*/package.json" --source "core/*/package.json"
# indent package.json with 4 spaces instead of 2
syncpack format --indent "    "

list

List all dependencies required by your packages.

Options

-s, --source [pattern]  glob pattern for package.json files to read from
-p, --prod              include dependencies
-d, --dev               include devDependencies
-P, --peer              include peerDependencies
-h, --help              output usage information

Examples

# uses packages defined in lerna.json by default
syncpack list
# uses packages defined by --source when provided
syncpack list --source "apps/*/package.json"
# multiple globs can be provided like this
syncpack list --source "apps/*/package.json" --source "core/*/package.json"
# only inspect "devDependencies"
syncpack list --dev
# only inspect "devDependencies" and "peerDependencies"
syncpack list --dev --peer

list-mismatches

List dependencies which are required by multiple packages, where the version is not the same across every package.

Options

-s, --source [pattern]  glob pattern for package.json files to read from
-p, --prod              include dependencies
-d, --dev               include devDependencies
-P, --peer              include peerDependencies
-h, --help              output usage information

Examples

# uses packages defined in lerna.json by default
syncpack list-mismatches
# uses packages defined by --source when provided
syncpack list-mismatches --source "apps/*/package.json"
# multiple globs can be provided like this
syncpack list-mismatches --source "apps/*/package.json" --source "core/*/package.json"
# only list "devDependencies"
syncpack list-mismatches --dev
# only list "devDependencies" and "peerDependencies"
syncpack list-mismatches --dev --peer

set-semver-ranges

Ensure dependency versions used within "dependencies", "devDependencies", and "peerDependencies" follow a consistent format.

Options

-r, --semver-range <range>  <, <=, "", ~, ^, >=, >, or *. defaults to ""
-s, --source [pattern]      glob pattern for package.json files to read from
-p, --prod                  include dependencies
-d, --dev                   include devDependencies
-P, --peer                  include peerDependencies
-i, --indent [value]        override indentation. defaults to "  "
-h, --help                  output usage information

Examples

# uses packages defined in lerna.json by default
syncpack set-semver-ranges
# uses packages defined by --source when provided
syncpack set-semver-ranges --source "apps/*/package.json"
# multiple globs can be provided like this
syncpack set-semver-ranges --source "apps/*/package.json" --source "core/*/package.json"
# use ~ range instead of default ""
syncpack set-semver-ranges --semver-range ~
# set ~ range in "devDependencies"
syncpack set-semver-ranges --dev --semver-range ~
# set ~ range in "devDependencies" and "peerDependencies"
syncpack set-semver-ranges --dev --peer --semver-range ~
# indent package.json with 4 spaces instead of 2
syncpack set-semver-ranges --indent "    "

Supported Ranges

<  <1.4.2
<= <=1.4.2
"" 1.4.2
~  ~1.4.2
^  ^1.4.2
>= >=1.4.2
>  >1.4.2
*  *

Changelog

3.5.0

29 October 2018

• feat(cli): improve --help output and examples dfe6274
• chore(release): 3.5.0 68f9401