Exclude .js files from build React.js

Question

I was wondering if there was a way to exclude a .js file from

npm run build

I have tried adding

"build": "react-scripts build && rm -rf build/config-local.js",

into package.json but it tells me:

rm is not recognized as a function

is there a simple solution to this issue

Thank you

rm is not recognized because you are probably using a Windows system. Try del. — Nick
– Nick, Commented Apr 12, 2018 at 15:59
I am not at the liberty of selecting a system, I have to use windows for this specific app. — gouletf
– gouletf, Commented Apr 12, 2018 at 18:07
i am aware this is an XY problem ish I am trying to find the cleanest way to exclude a file from build. — gouletf
– gouletf, Commented Apr 12, 2018 at 18:08
I didn't say you had to switch the OS, just try the del command: && del build\\config-local.js -- Note the escaped backslash. — Nick
– Nick, Commented Apr 12, 2018 at 18:20

RobC · Accepted Answer · 2018-04-12 18:01:41Z

6

You cannot exclude a .js file which is installed via your react-scripts build command without modifying react-scripts source code. So, I think your attempted solution of subsequently deleting the file is the simplest approach.

Explanation:

So why is it not working?

rm is not recognized as a function

The rm command is for removing files/folders via bash.
The equivalent command for Windows (E.g. via cmd.exe) is DEL.

So my guess is you're getting this error because you're running it on Windows.

Solution:

For a cross platform solution to removing file/folders(s) you can utilize rimraf.

Firstly cd to your project directory and install rimraf by running the following command:
```
npm install rimraf --save-dev
```
Then change your build script to the following in your package.json:
```
"build": "react-scripts build && rimraf build/config-local.js",
```
Note: the original rm -rf part has been replaced with rimraf

edited Apr 12, 2018 at 18:01

answered Apr 12, 2018 at 17:14

RobC

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1 Comment

gouletf Over a year ago

I got a couple dependancy issues with rimraf but it worked, thank you very much for your help, you saved me a lot of research

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