haskell-actions / haskell-actions/setup

Installing GHC is slow. Possibly use cache?

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#52 2 comments 14 reactions 0 assignees View on GitHub

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Dominant language
TypeScript
Stars
91
Forks
21
PR merge metrics
No merged PRs in 30d

Description

Installing GHC is slow. Is it possible to utilize caches if the versions of ghcup and cabal to be installed are exactly the one already installed before?

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First steps

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  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 tracing the setup action's installation paths for GHC, ghcup, and cabal, then inspect how repeated setup runs currently handle already-installed versions. Done means compatible cached installations are reused when the requested ghcup and cabal versions exactly match, avoiding unnecessary slow installation.

Written by the indexing model from the issue text.

Assessment

Tech stack
github-actions, haskell, typescript
Domain
ci-cd, tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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