How do I make 2 different configuration ??

[alcapitan]

I'm currently very frustrated by this error, especially as there's no explanation on the Internet and PostCSS doesn't indicate any error even in verbose mode.

Here is my NPM commands :

postcss atui/kernel/src/*.css --config .pre-postcssrc.json --replace --no-map
postcss atui/kernel/src/*.css -d atui/kernel/dist/ -m

This is my .pre-postcssrc.json config file :

{
    "plugins": {
        "cssnano": {
            "preset": ["default", { "normalizeWhitespace": false, "discardComments": false }]
        }
    }
}

And my .postcssrc.json config file :

{
    "plugins": {
        "cssnano": {
            "preset": ["default", { "discardComments" : { "removeAllButFirst": true } } ]
        },
        "postcss-import": {},
        "postcss-preset-env": {
            "stage": 2
        },
        "autoprefixer": {}
    }
}

I expect my first command with --config .pre-postcssrc.json to execute the .pre-postcssrc.json file, but it executes the .postcssrc.json file.

After a lot of testing, I think PostCSS ignores the --config option. However, the --config option appears in npx postcss --help as well as in the PostCSS-cli's README.

I'm using these versions :

• PostCSS : 8.4.24
• PostCSS-cli : 10.1.0

Moreover, according to their package.json file, Bootstrap use the --config option, so it should works.

I want this way of operation. So please tell me how to fix that error.

[RyanZim]

The --config option specifies the directory to look for the config file, searching for the usual config file names. It cannot be used to specify a custom config file name. Bootstrap's usage is slightly incorrect; they should just use --config build/