commercialhaskell/stack
Optionally cache Git object files in Pantry directory
Offen
#4.758 geöffnet am 21.04.2019
help wantednewcomer friendlytype: discusstype: enhancementtype: performance
Repository-Metriken
- Stars
- (4.060 Sterne)
- PR-Merge-Metriken
- (Durchschn. Merge 17T 10h) (6 gemergte PRs in 30 T)
Beschreibung
Setting milestone to P1 to ensure we decide on this before the Stack 2.0 release.
I was unaware until recently of the GIT_OBJECT_DIRECTORY environment variable, described at https://git-scm.com/book/en/v2/Git-Internals-Environment-Variables. IIUC, we can set this environment variable to a shared directory inside the pantry directory, and cache repository information across usages.
Advantages:
- Don't need to reclone the entire history of a repo when switching to a slightly later commit
- The current inefficiency of using multiple subdirectories from a single repo will mostly disappear
Disadvantages:
- Adds lots of additional storage
The disadvantage can be addressed with a future feature of some gc command to Stack, which is actually the topic of a likely GSoC project.
CC @borsboom and @qrilka for feedback.