microsoft / microsoft/TypeScript

Support `diagnostics` inside `compilerOptions` in combination with `--build`

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#31,607 4 comments 0 reactions 0 assignees View on GitHub

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Description

Search Terms

  • diagnostics, build

related maybe? https://github.com/microsoft/TypeScript/issues/19725

Suggestion

It would be nice if you could combine --diagnostics and --build

Use Cases

I can just cd into a specific sub-project and run tsc --diagnostics there without a problem, however it would be nice to also have --diagnostics for a whole monorepo / project-references build.

Examples

Checklist

My suggestion meets these guidelines:

  • [*] This wouldn't be a breaking change in existing TypeScript/JavaScript code
  • [*] This wouldn't change the runtime behavior of existing JavaScript code
  • [*] This could be implemented without emitting different JS based on the types of the expressions
  • [*] This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
  • [*] This feature would agree with the rest of TypeScript's Design Goals.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing related issue #19725 and comparing the existing tsc --diagnostics behavior with --build across project references. Locate the compiler option handling for diagnostics, compilerOptions, and --build, then define and test the expected diagnostics output for a whole monorepo build.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
build-system, compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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