Installing npm package with prepare script from yarn produces only index.js

user_1660584 0
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I have this sample typescript package with prepare script running tsc: https://github.com/richard-ejem/tspackage

When I install it with npm using npm add git+https://github.com/richard-ejem/tspackage.git#master to a project, node_modules/tspackage/dist contains 4 files as expected:

  • index.js
  • index.d.ts
  • utils.js
  • utils.d.ts

However, when installed with yarn using yarn add git+https://github.com/richard-ejem/tspackage.git#master, the dist folder contains only index.js.

Am I missing something, or is this a bug in yarn? Is there some possible workaround/other way to build typescript git dependencies on yarn install?

yarnpkg typescript
2 Answers

Finally found a solution - the trick is to add empty .npmignore file to the repository.

It is probably related to this problem: https://github.com/yarnpkg/yarn/issues/5235#issuecomment-571206092

if there is no .npmignore, npm/yarn removes everything matching .gitignore on install, and in case of yarn, this somehow conflicts with prepare script. It is still weird that dist/index.js is not removed since it is ignored by .gitignore too, however the empty .npmignore solves the problem.

user_16605840

Try add through ssh, yarn add ssh://github.com/richard-ejem/tspackage#master

Don't know why, but it worked for me, yarn -v 1.22.15

user_117802820
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