27 lines
1.1 KiB
Markdown
27 lines
1.1 KiB
Markdown
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# nix-actions-cache
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`nix-actions-cache` is a minimal Nix Binary Cache server backed by [the GitHub Actions Cache](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows).
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It can be compiled into a ~3.5MB static binary for distribution, allowing it to start prefetching NARs used in a previous run even _before_ Nix is installed (not implemented yet).
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## Development
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This project depends on internal APIs used by the GitHub Actions Cache.
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See `gha-cache/README.md` for more details on how to obtain the required tokens.
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```
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cargo run -- -c creds.json
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cargo build --release --target x86_64-unknown-linux-musl
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cargo build --release --target aarch64-unknown-linux-musl
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nix copy --to 'http://127.0.0.1:3000' $(which bash)
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nix-store --store $PWD/test-root --extra-substituters 'http://localhost:3000' --option require-sigs false -r $(which bash)
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```
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## TODO
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- [ ] Make a GitHub Action and dogfood
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- [ ] Parallelize upload
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- [ ] Make sure that the corresponding NAR exists before returning `.narinfo` request
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- [ ] Keep in-memory cache of what's present
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- [ ] Record what's accessed
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- [ ] Prefetch previously-accessed NARs
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