feat: export default getLocalIdent

[niki-timofe]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

For example, use default getLocalIdent, but override it's behavior for specific files:

const getLocalIdent = require('css-loader/dist/utils').getLocalIdent;

...

            {
                loader: 'css-loader',
                options: {
                    modules: {
                        localIdentName: '[local]--[hash:base64:5]',
                        getLocalIdent: (context, localIdentName, localName, options) => getLocalIdent(
                            context,
                            context.resourcePath.endsWith('.modules.scss')
                                ? localIdentName
                                : '[local]',
                            localName,
                            options,
                        ),
                    },
                },
            }

[jsf-clabot]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #1046 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1046   +/-   ##
=======================================
  Coverage   98.14%   98.14%           
=======================================
  Files          10       10           
  Lines         484      484           
  Branches      150      150           
=======================================
  Hits          475      475           
  Misses          8        8           
  Partials        1        1           

Impacted Files	Coverage Δ
src/utils.js	98.96% <ø> (ø)

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[alexander-akait]

Not sure we should do that, because we change algorithm often, so it will be problem with released and require for us do major release on each change

[niki-timofe]

I understand. May be adding option for filtering files will be better solution?

[alexander-akait]

Which files?

[niki-timofe]

As in example, I've bunch of legacy files, which not supposed to use css-modules.

UPD:
Ok. Now I realized that i can just create alternative rule for them in webpack 🙃

[alexander-akait]

Other good solution what we can implement #994

[alexander-akait]

We can implement that right now (test option should be false in current version, but we can set it to true in next release)

[niki-timofe]

Oh, it's cool. I'll try to help implement that.