microsoft / microsoft/TypeScript

TSC --watch should survive file renames

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#42,745 4 comments 0 reactions 0 assignees View on GitHub

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Description

I use tsc --watch a lot but whenever I rename a file tsc --watch goes stale and doesn't recover from it hence I end up with stale JS without noticing. What you get in the console:

[1:13:49 PM] File change detected. Starting incremental compilation...

error TS6053: File '/..../npm/importLinker.ts' not found.

[1:13:50 PM] Found 1 error. Watching for file changes.

We should either fix this in TSC or at least make the task detect this and automatically restart.

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Research direction

Reproduce the failure using tsc --watch and a renamed source file, then trace the watch-mode handling from that entry point. Done means the watcher recovers after the rename and no longer leaves stale JavaScript without reporting a recoverable state.

Written by the indexing model from the issue text.

Assessment

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

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