@sideroad/vscode-extension-install

Prerequisite

The machine should be installed vscode command line as code. otherwise skill process to install extension.VSCode can have setting to install extension by preparing .vscode/extensions.json. This tool enforce to install vscode extension by using extensions.json file
.vscode/extensions.json

{
  "recommendations": [
      "dbaeumer.vscode-eslint", "shinnn.stylelint"
  ]
}

npm i --save-dev vscode-extension-install

package.json

{
  ...
  "scripts": {
    "postinstall": "vscode-extension-install"
  }
  ...
}

MIT