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githubリポジトリのサブフォルダーからnpm installしたい時

Last updated at Posted at 2022-05-30

概要

github上で以下のような構成のリポジトリがあるとする。
ディレクトリ直下ではなく、サブフォルダにいくつかのpackageがまとまっているmonorepoだ。

.github/
packages/
├ package-a
│ └ package.json # <- これをインストールしたい
└ package-b
   └ package.json

サブフォルダ内のあるpackage(例えばpackage-a)をインストールしたい時、単に npm i https://github.com/<user>/<repo>/packages/package-a とするだけではインストールできない。

npm i https://github.com/<user>/<repo>/packages/package-a

npm ERR! code E404
npm ERR! 404 Not Found - GET https://github.com/<user>/<repo>/packages/package-a
npm ERR! 404
npm ERR! 404  'https://github.com/<user>/<repo>/packages/package-a' is not in this registry.
npm ERR! 404 This package name is not valid, because
npm ERR! 404  1. name can only contain URL-friendly characters
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

対処法

そんな時はgitpkg.now.shを使おう。
サブフォルダからのインストールを簡単にしてくれるツールだ。

 Using sub folders of a repo as yarn/npm dependencies made easy

使い方は github.com を gitpkg.now.sh に置き換えるだけだ。

npm i https://gitpkg.now.sh/<user/<repo>/packages/package-a?<commit>
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