CLI doesn't allow custom builder to pass additional extensions when building app for i18n extractions

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评估

难度
3/5
预计耗时
1-2 天
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
停滞
技术栈
angular, typescript

调研方向

从链接行所在的 packages/angular_devkit/build_angular/src/builders/extract-i18n/application-extraction.ts 开始,并比较常规应用构建如何接收扩展。验证 extract-i18n 在应用编译期间传递了自定义 builder 扩展,并且 messages.xlf 包含提取的消息,而不是空文件。

由索引模型根据 Issue 内容生成。

描述

area: @angular-devkit/build-angular devkit/build-angular:i18n freq1: low severity3: broken type: bug/fix
Command

extract-i18n

Description

We're in the process of migrating from webpack to esbuild.
To provide custom esbuild plugins we decided to use custom builder (https://github.com/just-jeb/angular-builders).

It went smooth until we realised that extract-i18 no longer works. It ends successfully but messages.xlf is empty.

It turned out that angular checks builderName to choose which bundler to use.

To fix that I decided to implement custom extract-i18n builder that will trick angular/cli and force using esbuild -
https://github.com/just-jeb/angular-builders/pull/1711

For the record nrwl/nx did the same - https://github.com/nrwl/nx/pull/21802

The issue is that angular/cli will not let us pass any extensions during i18n application compilation.

https://github.com/angular/angular-cli/blob/1034bb155b58a5f18eecf56409a3ff99d2ca4474/packages/angular_devkit/build_angular/src/builders/extract-i18n/application-extraction.ts#L59

It may lead to inconsistency between build and extract flow, which I suppose may lead to issues with i18n.

Describe the solution you'd like

We should be able to pass custom extensions as for regular app building.

(bonus) would be really nice if these if (builderName === ... are replaced by something that is custom builder friendly 🙏

Describe alternatives you've considered

Alternatively we could rewrite whole extract-i18n builder, but as 95% of the code would be the same - it seems pointless

主要语言
TypeScript
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