From 7cef49d261cbbe537e8cb662485e76d29ac4cbca Mon Sep 17 00:00:00 2001 From: Mihai Fufezan Date: Fri, 20 Jun 2025 01:28:54 +0300 Subject: [PATCH] CI/Nix: add cache-nix-action Use nixbuild/nix-quick-install-action which pairs well with nix-community/cache-nix-action. Should help with build times by reducing the number of packages needing to be re-downloaded on each run. Parameters are taken from https://github.com/nix-community/cache-nix-action and may be tweaked later. --- .github/workflows/nix.yml | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml index 588d31d..95c99e5 100644 --- a/.github/workflows/nix.yml +++ b/.github/workflows/nix.yml @@ -13,7 +13,35 @@ jobs: steps: - uses: actions/checkout@v3 - - uses: cachix/install-nix-action@v26 + - name: Install Nix + uses: nixbuild/nix-quick-install-action@v31 + with: + nix_conf: | + keep-env-derivations = true + keep-outputs = true + + - name: Restore and save Nix store + uses: nix-community/cache-nix-action@v6 + with: + # restore and save a cache using this key + primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }} + # if there's no cache hit, restore a cache by this prefix + restore-prefixes-first-match: nix-${{ runner.os }}- + # collect garbage until the Nix store size (in bytes) is at most this number + # before trying to save a new cache + # 1G = 1073741824 + gc-max-store-size-linux: 1G + # do purge caches + purge: true + # purge all versions of the cache + purge-prefixes: nix-${{ runner.os }}- + # created more than this number of seconds ago + purge-created: 0 + # or, last accessed more than this number of seconds ago + # relative to the start of the `Post Restore and save Nix store` phase + purge-last-accessed: 0 + # except any version with the key that is the same as the `primary-key` + purge-primary-key: never # not needed (yet) # - uses: cachix/cachix-action@v12