yarn patch — Yarn CLI reference
Extract a package so it can be patched
Docs/Reference/CLI/patch
yarn patch
Extract a package so it can be patched
yarn patch <IDENT>
This command extracts a package into a temporary directory where you can edit its files.
Once you’re done, run yarn patch-commit -s <path> with the printed temporary directory to generate a patch file and register it through the patch: protocol.
If the package is already patched, Yarn starts from the original package by default. Use -u,--update to apply the existing patch before editing.
Apply existing local patches before opening the editable copy
Format the output as an NDJSON stream