[@rollup/plugin-typescript]: Source-map source paths break if "sourceRoot" is specified
Nobody has claimed this yet.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 45/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- typescript
- Domain
- build-system
Research direction
Start with the StackBlitz reproduction and inspect tsconfig.json alongside dist/index.js.map, first comparing the generated source paths with and without sourceRoot. Trace how the TypeScript plugin produces the map and verify that each path resolves correctly beneath the configured source root when done.
Written by the indexing model from the issue text.
Description
- Rollup Plugin Name: Typescript
- Rollup Plugin Version: 12.3.0
- Rollup Version: 4.53.3
- Operating System (or Browser): Archlinux kernel 6.17.9
- Node Version: 22.21.1
- Link to reproduction (⚠️ read below): https://stackblitz.com/edit/rollup-repro-sxnmzqs2?file=tsconfig.json
Expected Behavior
Each path reference inside the source map leads to a source file inside the source root.
Actual Behavior
The paths are invalid if a source root is specified and repeat the path to the source file after the path to the directory containing the source file (see dist/index.js.map inside the stackblitz)
Additional Information
If the sourceRoot option is removed from the compilerOptions, it works as expected.
- Dominant language
- JavaScript
- Stars
- 3.8k
- Forks
- 635
- PR merge metrics
- No merged PRs in 30d
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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