Ability to configure minChunks for common chunk

[aksyonov]

Bug Report or Feature Request (mark with an x)

- [ ] bug report -> please search issues before submitting
- [x] feature request

Versions.

Angular CLI: 1.5.0
Node: 8.6.0
OS: win32 x64
Angular: 5.0.0
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

@angular/cdk: 5.0.0-rc0
@angular/cli: 1.5.0
@angular/flex-layout: 2.0.0-beta.10
@angular/material: 5.0.0-rc0
@angular-devkit/build-optimizer: 0.0.31
@angular-devkit/core: 0.0.20
@angular-devkit/schematics: 0.0.34
@ngtools/json-schema: 1.1.0
typescript: 2.4.2
webpack: 3.8.1

Desired functionality.

I would like to configure minChunks parameter for common chunk e.g. in angular-cli.json file, without having to eject the angular webpack.config.js file.

Mention any other details that might be useful.

For example if two of my lazy-loaded modules have some common huge dependency it'll end up in common chunk and will be loaded with all lazy-loaded modules in application. If I could set minChunks to 3, common chunk will be much smaller.

[adamdport]

I just did a fairly lengthy refactor to try to take advantage of lazy loading, but was thrown for a loop when I saw my common chunk multiply 6x. I ended up disabling it for now...

Can anyone speak to whether or not this is being considered?

[clydin]

The common chunk functionality is significantly more advanced in the latest version of the CLI (6.x+) and will no longer create a massive single common chunk. As such, this type of configurability is no longer relevant.

[adamdport]

@clydin is there anywhere we can read about its approach? The docs still just say

--common-chunk
Use a separate bundle containing code used across multiple bundles.

[clydin]

There's no official documentation but here is a comment I wrote providing some background on the new behavior: #10364 (comment)

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