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Save 30-50%+ of CI time without any effort or cost. Use Magic Nix Cache, a totally free and zero-configuration binary cache for Nix on GitHub Actions.
24 commits 12 branches 9 tags 932 KiB
Rust 96.3%
Nix 3.7%
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Zhaofeng Li 33d85fe7aa Rename api -> binary_cache
2023-05-19 02:48:52 -06:00
.github/workflows Add package 2023-05-19 02:48:52 -06:00
gha-cache gha-cache: Better debug logging 2023-05-19 02:48:52 -06:00
nix-actions-cache Rename api -> binary_cache 2023-05-19 02:48:52 -06:00
.envrc Kind of works 2023-05-08 03:48:11 -06:00
.gitignore Track Cargo.lock 2023-05-08 04:13:01 -06:00
Cargo.lock Support forking into background 2023-05-19 02:48:52 -06:00
Cargo.toml Kind of works 2023-05-08 03:48:11 -06:00
crane.nix Add package 2023-05-19 02:48:52 -06:00
flake.lock flake.lock: Update 2023-05-19 02:48:52 -06:00
flake.nix Add package 2023-05-19 02:48:52 -06:00
README.md Parallelize chunk uploads 2023-05-08 12:59:57 -06:00
shell.nix Kind of works 2023-05-08 03:48:11 -06:00

README.md

nix-actions-cache

nix-actions-cache is a minimal Nix Binary Cache server backed by the GitHub Actions Cache. 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).

Development

This project depends on internal APIs used by the GitHub Actions Cache. See gha-cache/README.md for more details on how to obtain the required tokens.

cargo run -- -c creds.json --upstream https://cache.nixos.org
cargo build --release --target x86_64-unknown-linux-musl
cargo build --release --target aarch64-unknown-linux-musl
nix copy --to 'http://127.0.0.1:3000' $(which bash)
nix-store --store $PWD/test-root --extra-substituters 'http://localhost:3000' --option require-sigs false -r $(which bash)

TODO

  • Make a GitHub Action and dogfood
  • Parallelize upload
  • Make sure that the corresponding NAR exists before returning .narinfo request
  • Keep in-memory cache of what's present
  • Record what's accessed
  • Prefetch previously-accessed NARs