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CI: Cache Hackage package index in integration tests #1667

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CI: Cache Hackage package index in integration tests
zlav Mar 12, 2026
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zlav Mar 12, 2026
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19 changes: 19 additions & 0 deletions .github/workflows/integrations-test.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,17 @@ jobs:

- uses: Swatinem/rust-cache@v2

# Cache the Hackage package index so cabal update does an incremental
# update (~seconds) instead of a full download (~3.5 min).
# Shared across all jobs; refreshed daily.
- uses: actions/cache@v5
name: Cache Hackage index
with:
path: ~/.cache/cabal/packages
key: hackage-index-${{ runner.os }}-${{ steps.latest-tag.outputs.tag }}
restore-keys: |
hackage-index-${{ runner.os }}-

- uses: actions/cache@v5
name: Cache cabal store
with:
Expand Down Expand Up @@ -199,6 +210,14 @@ jobs:
extra_nix_config: "build-users-group = nixbld"

# Restore caches populated by the build job.
- uses: actions/cache@v5
name: Cache Hackage index
with:
path: ~/.cache/cabal/packages
key: hackage-index-${{ runner.os }}-${{ needs.build.outputs.latest-tag }}
restore-keys: |
hackage-index-${{ runner.os }}-

- uses: actions/cache@v5
name: Cache cabal store
with:
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