Postinstall copy of readme should be removed

[DomiR]

This will run on yarn install for consumers of this library. Instead of postinstall we should use prepack.

https://github.com/callstack/react-native-slider/blob/8619daf7518c24ff7fdcfced73111d7dd856f727/package/package.json#L22

I'm getting:

error PROJECT_DIR/node_modules/@react-native-community/slider: Command failed.
Exit code: 254
Command: npx copyfiles "./../README.md" ./README.md
Arguments: 
Directory: PROJECT_DIR/node_modules/@react-native-community/slider
Output:
npm ERR! code ENOENT
npm ERR! syscall lstat
npm ERR! path USER_DIR/.node_modules_global/lib
npm ERR! errno -2
npm ERR! enoent ENOENT: no such file or directory, lstat 'USER_DIR/.node_modules_global/lib'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

[DomiR]

Okay, this is weired. I'm only having this issue with node@18 after switching via fnm. I guess the command usually silently fails/runs (as no Readme is there to be copied). I guess this issue can be closed, but probably using prepack instead of postinstall is still the better option in either case.

Dockerfile demonstates issue:

FROM node:18-alpine
WORKDIR /app
# disable npx
RUN mv /usr/local/bin/npx /usr/local/bin/npx.bak
RUN yarn add @react-native-community/slider

[BartoszKlonowski]

Hello @DomiR, thanks for taking the time to report and summarize! 👍 Of course, having this as postinstall is not the best idea - let's have it any other way, and there are at least two of them: prepack or some simple custom step to be launched manually on demand. Let me keep this open so it won't be forgotten to be handled. Thanks again!

[rborn]

👋 any way to overcome this? basically it prevents me to run yarn :( 🙏