Reduce Recompilation When Switching Crates
- Lingua principale
- Rust
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Descrizione
### Is your feature request related to a problem or challenge?
It is fairly common to compile the various DataFusion crates separately for the purposes of improved test iteration. Unfortunately the experience of switching between crates is currently often involves recompiling huge tranches of the build tree.
This is because different dependencies set different feature flags for various dependencies, in some cases these are very low-level crates, forcing recompilation of the entire dependency tree. This is not only slow, but also is a recipe for ending up with an extremely chonky target directory
Examples of particularly painful crates with inconsistent feature sets:
* syn
* chrono
* num-traits
* tokio
* regex
* hashbrown
### Describe the solution you'd like
One possible solution is to create a workspace hack crate that forces a common set of feature flags when building crates within the workspace. There is [tooling](https://docs.rs/cargo-hakari/0.9.27/cargo_hakari/) to make this slightly less painful.
The major downsides of this are:
* Might complicate consuming DataFusion as a git dependency
* Would require a slightly different release workflow `cargo hakari publish` instead of `cargo publish`
A slightly less intrusive solution might be to try and find particularly problematic dependencies and make them workspace dependencies
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
Guida per i contributori
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Direzione di ricerca
Inizia esaminando i set di feature delle dipendenze del workspace per syn, chrono, num-traits, tokio, regex e hashbrown. Confronta un hack del workspace cargo-hakari con la definizione di dipendenze selezionate come dipendenze del workspace, quindi verifica che il passaggio tra i crate DataFusion eviti una ricompilazione ampia senza compromettere il consumo tramite git o il workflow di release.
Scritto dal modello di indicizzazione a partire dal testo della issue.
Valutazione
- Stack tecnologico
- rust
- Ambito
- build-system
- Tipo di issue
- Funzionalità
- Difficoltà
- 5/5
- Tempo stimato
- Più di una settimana
- Stato di attività
- Ferma
- Chiarezza
- Da chiarire
- Idoneità per principianti
- 28/100