microsoft / microsoft/TypeScript

Suggestion: case-sensitive imports

Open
#21,736 29 comments 73 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Effort: Moderate Help Wanted Suggestion
Dominant language
Go
Stars
111k
Forks
14.3k
Avg merge
2d 4h
Merged PRs (30d)
132

Description

TypeScript Version: 2.7.0-dev.201xxxxx

My mac does not have case sensitive imports. That is you can import the file x.js as ./X.js and everything will work. However, our servers run on linux (like most) and I got a runtime exception that took down the whole server because linux imports are case sensitive.

I think this would be an awesome addition to Typescript to prevent fatal mistakes that are hard to catch like this one.

Related Issues:

https://github.com/Microsoft/TypeScript/issues/14460

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 the related issue #14460 and trying the reported import mismatch with typescript@next on case-insensitive macOS and case-sensitive Linux environments. Done means TypeScript reliably detects or prevents imports whose casing differs from the referenced file, with behavior that addresses the reported runtime failure.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.