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.
This commit is contained in:
Mihai Fufezan
2025-06-20 00:50:46 +03:00
parent b49d0ca20e
commit ff2f85641a
2 changed files with 59 additions and 2 deletions

View File

@@ -18,7 +18,35 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: DeterminateSystems/nix-installer-action@main
- 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
- uses: cachix/cachix-action@v15
with:

View File

@@ -17,7 +17,36 @@ jobs:
with:
token: ${{ secrets.PAT }}
- uses: DeterminateSystems/nix-installer-action@main
- name: Install Nix
uses: nixbuild/nix-quick-install-action@v31
with:
nix_conf: |
keep-env-derivations = true
keep-outputs = true
- name: Restore and save Nix store
uses: nix-community/cache-nix-action@v6
with:
# restore and save a cache using this key
primary-key: nix-${{ 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
- name: Update inputs
run: nix/update-inputs.sh