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LGUG2Z
4653986f0e
komorebi-for-kde/README.md, CONTRIBUTING.md -> docs/linux/ komorebi-for-mac/README.md, CONTRIBUTING.md -> docs/macos/ komorebi-for-kde/.github/* -> docs/dev/old-ci/linux/ komorebi-for-mac/.github/*, mkdocs.yml, check_schema_docs.py, dependencies.json, formula.template.rb -> docs/dev/old-ci/macos/ The CI workflows, dependabot files, issue templates, the macOS Homebrew formula template and docs-site configuration of the two old repositories are kept for the CI and release plan that follows (one workflow set, one release); under docs/ GitHub ignores them, as it did under the subdirectories, so no KDE or macOS workflow runs on this branch. Renames only (19 files); the Windows .github and files at the root are untouched.
55 lines
2.5 KiB
YAML
55 lines
2.5 KiB
YAML
name: nix
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description: Install nix on a hosted runner, with the store cached and, on request, KVM enabled
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inputs:
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kvm:
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description: Make /dev/kvm usable and tell nix that this machine can run NixOS tests
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default: "false"
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cache:
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description: Restore the nix store from the cache, and save it when the job ends
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default: "true"
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runs:
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using: composite
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steps:
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# A Plasma guest is a closure of about 10 GB, and a hosted runner has little free space on /
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# until the toolchains it ships with are gone.
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- name: Free disk space
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if: inputs.kvm == 'true'
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shell: bash
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run: |
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sudo rm -rf /usr/share/dotnet /usr/local/lib/android /opt/ghc /opt/hostedtoolcache/CodeQL
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df -h /
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# The udev rule is what makes /dev/kvm writable for the runner's user. KVM on hosted runners
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# is documented for public repositories; `test -w` is what says whether this one has it.
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- name: Enable KVM
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if: inputs.kvm == 'true'
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shell: bash
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run: |
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echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' |
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sudo tee /etc/udev/rules.d/99-kvm4all.rules
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sudo udevadm control --reload-rules
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sudo udevadm trigger --name-match=kvm
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# The host of a hosted runner is not chosen: some have no nested virtualization. The step is
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# named so that rerun-no-kvm.yaml can tell this failure from a failed suite and run it again.
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test -w /dev/kvm || { echo "::error::this runner has no usable /dev/kvm"; exit 1; }
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# This action only installs nix. It does not use the Cachix service, and no Cachix cache, account
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# or token is configured anywhere in this repository.
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- uses: cachix/install-nix-action@v31
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with:
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extra_nix_config: |
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system-features = nixos-test benchmark big-parallel ${{ inputs.kvm == 'true' && 'kvm' || '' }}
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# The key is flake.lock, so a job that builds against another nixpkgs (the canary) turns the
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# cache off: what it restored would be of no use to it, and what it saved would replace the
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# store of the jobs that do use this lock. The architecture is part of the key, because the
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# x86_64 and arm64 runners build different store paths.
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- if: inputs.cache == 'true'
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uses: nix-community/cache-nix-action@v7
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with:
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primary-key: nix-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('flake.lock', '**/Cargo.lock') }}
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restore-prefixes-first-match: nix-${{ runner.os }}-${{ runner.arch }}-
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gc-max-store-size-linux: 8G
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