BearAlliance / npm-ignore-scripts

Demonstration of npm's --ignore-scripts flag as it applies to dependencies

Ignore Scripts

This repository demonstrates the behavior of npm install --ignore-scripts as it applies to dependencies.

The problem

I want to run my project's npm install ignoring anything I have written in the preinstall and postinstall scripts of package.json. I cannot do this without also ignoring scripts defined in the package.json of my dependencies.

node-sass

node-sass has a postinstall script that builds/installs the package binary depending on the runtime environment. If the --ignore-scripts option is used with npm install, scripts defined in all dependncies are ignored, preventing node-sass from being fully installed.

Demonstration

Successful installation

rm -rf node_modules
npm install
npm run node-sass

You should see preinstall and postinstall scripts execute

Sass file should be compiled to css

Unsuccessful installation

rm -rf node_modules
npm install --ignore-scripts
npm run node-sass

You should not see preinstall or postinstall scripts execute.

npm run node-sass throws an error because the binary is not present