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Try moving to Nix Experimental installer (#85)
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‎action.yml‎

Lines changed: 41 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -142,12 +142,48 @@ runs:
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mkdir -p ~/.config/nix
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echo "${{ inputs.extra-nix-config }}" >> ~/.config/nix/nix.conf
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- name: Install nix
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- name: Download and install experimental Nix installer
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if: inputs.skip-nix-installation == 'false'
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uses: DeterminateSystems/nix-installer-action@786fff0690178f1234e4e1fe9b536e94f5433196 # v20
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with:
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logger: pretty
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extra-conf: experimental-features = ca-derivations fetch-closure
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shell: bash
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env:
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NIX_INSTALLER_EXTRA_CONF: experimental-features = ca-derivations fetch-closure nix-command flakes
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NIX_INSTALLER_LOGGER: pretty
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NIX_INSTALLER_NIX_BUILD_USER_COUNT: 32
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NIX_INSTALLER_NIX_BUILD_GROUP_NAME: nixbld
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NIX_INSTALLER_NIX_BUILD_GROUP_ID: 30000
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NIX_INSTALLER_MODIFY_PROFILE: true
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NIX_INSTALLER_INIT: systemd
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NIX_INSTALLER_START_DAEMON: true
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NIX_INSTALLER_TRUST_RUNNER_USER: true
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NIX_INSTALLER_CHANNELS: nixpkgs=https://nixos.org/channels/nixpkgs-unstable
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run: |
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echo "Installing Nix using experimental installer..."
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# Download and run the experimental installer
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curl --proto '=https' --tlsv1.2 -sSf -L https://artifacts.nixos.org/experimental-installer | \
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sh -s -- install --no-confirm
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# Source the nix profile to make nix available in current shell
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if [ -f ~/.nix-profile/etc/profile.d/nix.sh ]; then
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source ~/.nix-profile/etc/profile.d/nix.sh
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elif [ -f /etc/profile.d/nix.sh ]; then
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source /etc/profile.d/nix.sh
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fi
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# Verify installation
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nix --version
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nix-env --version
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- name: Verify Nix installation
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if: inputs.skip-nix-installation == 'false'
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shell: bash
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run: |
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echo "Verifying Nix installation..."
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echo "Nix version: $(nix --version)"
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echo "Nix store info:"
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nix store info || echo "Store info not available"
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echo "Nix channels:"
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nix-channel --list || echo "No channels configured"
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- name: Get nix version
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shell: bash

‎experimental-nix-installer/action.yml‎

Lines changed: 113 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,113 @@
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name: 'Experimental Nix Installer'
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description: 'Install Nix using the experimental installer'
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branding:
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icon: 'box'
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color: 'blue'
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inputs:
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extra-conf:
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description: 'Extra configuration to add to nix.conf'
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default: ''
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logger:
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description: 'Logger format (compact, full, pretty)'
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default: 'pretty'
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nix-build-user-count:
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description: 'Number of build users to create'
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default: '32'
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nix-build-group-name:
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description: 'Name of the build group'
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default: 'nixbld'
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nix-build-group-id:
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description: 'GID of the build group'
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default: '30000'
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modify-profile:
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description: 'Modify user profile to set up environment'
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default: 'true'
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daemon:
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description: 'Use daemon mode'
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default: 'true'
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init:
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description: 'Init mode for installation'
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default: 'systemd'
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start-daemon:
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description: 'Start the Nix daemon after installation'
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default: 'true'
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trust-runner-user:
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description: 'Add runner user to trusted users'
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default: 'true'
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channels:
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description: 'Nix channels to add'
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default: 'nixpkgs=https://nixos.org/channels/nixpkgs-unstable'
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outputs:
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nix-version:
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description: 'The version of Nix that was installed'
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value: ${{ steps.nix-install.outputs.nix-version }}
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runs:
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using: "composite"
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steps:
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- name: Download and install experimental Nix installer
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id: nix-install
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shell: bash
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env:
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NIX_INSTALLER_EXTRA_CONF: ${{ inputs.extra-conf }}
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NIX_INSTALLER_LOGGER: ${{ inputs.logger }}
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NIX_INSTALLER_NIX_BUILD_USER_COUNT: ${{ inputs.nix-build-user-count }}
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NIX_INSTALLER_NIX_BUILD_GROUP_NAME: ${{ inputs.nix-build-group-name }}
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NIX_INSTALLER_NIX_BUILD_GROUP_ID: ${{ inputs.nix-build-group-id }}
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NIX_INSTALLER_MODIFY_PROFILE: ${{ inputs.modify-profile }}
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NIX_INSTALLER_INIT: ${{ inputs.init }}
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NIX_INSTALLER_START_DAEMON: ${{ inputs.start-daemon }}
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NIX_INSTALLER_TRUST_RUNNER_USER: ${{ inputs.trust-runner-user }}
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NIX_INSTALLER_CHANNELS: ${{ inputs.channels }}
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run: |
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echo "Installing Nix using experimental installer..."
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# Download and run the experimental installer
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curl --proto '=https' --tlsv1.2 -sSf -L https://artifacts.nixos.org/experimental-installer | \
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sh -s -- install --no-confirm
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# Source the nix profile to make nix available in current shell
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if [ -f ~/.nix-profile/etc/profile.d/nix.sh ]; then
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source ~/.nix-profile/etc/profile.d/nix.sh
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elif [ -f /etc/profile.d/nix.sh ]; then
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source /etc/profile.d/nix.sh
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fi
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# Get Nix version and set output
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NIX_VERSION=$(nix --version | awk '{print $NF}')
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echo "nix-version=$NIX_VERSION" >> $GITHUB_OUTPUT
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echo "Installed Nix version: $NIX_VERSION"
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# Verify installation
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nix --version
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nix-env --version
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- name: Add extra configuration
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if: inputs.extra-conf != ''
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shell: bash
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run: |
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echo "Adding extra Nix configuration..."
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mkdir -p ~/.config/nix
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echo "${{ inputs.extra-conf }}" >> ~/.config/nix/nix.conf
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echo "Extra configuration added to nix.conf"
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- name: Configure GitHub access token
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if: github.server_url == 'https://github.com'
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shell: bash
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run: |
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echo "Configuring GitHub access token for Nix..."
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mkdir -p ~/.config/nix
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echo "access-tokens = github.com=${{ github.token }}" >> ~/.config/nix/nix.conf
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echo "GitHub access token configured"
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- name: Verify Nix installation
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shell: bash
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run: |
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echo "Verifying Nix installation..."
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echo "Nix version: $(nix --version)"
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echo "Nix store info:"
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nix store info || echo "Store info not available"
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echo "Nix channels:"
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nix-channel --list || echo "No channels configured"

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