Provide a means to know the freshness state of a set of paths from build.rs
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A-build-scripts
C-feature-request
S-needs-design
- Dominant language
- Rust
- Stars
- 15.5k
- Forks
- 3k
- Avg merge
- 23h 30m
- Merged PRs (30d)
- 51
Description
build.rs helpers such as cc-rs and nasm-rs get executed every time and that may slow down rebuilding quite a lot depending on the amount of assembly code a project has.
We already have a mean to tell cargo about foreign files, would be great to query back their state so if they are fresh isn't needed to build them again.
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.
Research direction
Start with Cargo's existing mechanism for declaring foreign files and the build.rs path used by helpers such as cc-rs and nasm-rs. Determine the API needed to query whether those paths are fresh; done means projects can avoid unnecessary rebuild work while still rebuilding when foreign files change.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- build-system
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100