Support for Yarn workspaces/monorepos

First of all, thanks for the awesome work on this package!

I’ve started exploring the new “workspaces”/“monorepos” feature of Yarn (https://yarnpkg.com/blog/2017/08/02/introducing-workspaces/), which enables “hoisting” of all node_modules from any sub-projects to a single parent repository (so that if you have sub-folders with individual package.jsons, each one would install its deps in the “parent” node_modules and link them, unless there are version conflicts).

However, patch-package no longer automatically applies patches to sub-project packages in its default configuration (i.e. when I run yarn in the parent folder, it only applies patches/ from the “parent” folder). I had to move all patches from sub-projects into the “parent” patches/ to make it work, however that sort of “pollutes” the “global” patch space with patches from sub-projects.

Are you familiar with this feature, and are there any other (better) solutions to enable automatic patching of sub-projects (I know it’s a lot to ask, was just hoping to hear your thoughts)?

Thanks again!

[ds300]

As of version 6.1.0 patch-package now works with yarn workspaces 🎉

The setup instructions are exactly the same, but you might need to set it up for sub packages in addition to the repo root package if you want to patch node_modules which were not hoisted.

[brunolemos]

I was also having trouble generating the patch on a yarn workspace, getting the error Error: ENOENT: no such file or directory, unlink (same as @vieira posted above).

Here’s my current workaround:

EDIT: As @krzkaczor commented below, you don’t need to yarn add the package on root. Just manually add the entry in the package.json and that’s enough. Original comment:

• yarn add package-name -W (Install the package on the root package.json)
• yarn patch-package package-name (Generate the patch)
• yarn remove package-name -W (Remove the package from the root package.json)

This way the patch will be successfully created. I didn’t face issues applying the patch.