rattler-build-action 📦🐍

rattler-build-action is a GitHub Action for building conda packages using rattler-build.

Usage

Create .github/workflows/package.yml in your repository. Here's a quick template:

name: Package

on: [push]

jobs:
  build:
    name: Build package
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Build conda package
      uses: prefix-dev/rattler-build-action@v0.2.21

Warning

Since rattler-build is still experimental and the API can change in minor versions, please pin this action to its minor version, i.e., prefix-dev/rattler-build-action@v0.2.21.

Tip

You can use dependabot to automatically update the version of rattler-build-action. Add the following to your .github/dependabot.yml:

version: 2
updates:
  - package-ecosystem: github-actions
    directory: /
    schedule:
      interval: monthly
    groups:
      gh-actions:
        patterns:
          - "*"

This action will build the conda recipe in conda.recipe/recipe.yaml and upload the built packages as a build artifact.

Customizations

• rattler-build-version: Define the version of rattler-build. Pins to the latest version that is available when releasing.
• recipe-path: Path to the rattler recipe. Defaults to conda.recipe/recipe.yaml.
• upload-artifact: Decide whether to upload the built packages as a build artifact.
• build-args: Additional arguments to pass to rattler-build build.
• artifact-name: Name of the artifact that is uploaded after build. If running rattler-build-action multiple times in a matrix, you need a distinct name for each workflow.

rattler-build-version

rattler-build-version is strictly pinned to the latest version of rattler-build that is available when releasing a new version of rattler-build-action. This is to ensure that no breakages occur if a new version of rattler-build is released.

You can use dependabot to automatically update the version of prefix-dev/rattler-build-action which will also update the version of rattler-build to the latest version.

Examples

Build for multiple targets using matrix

jobs:
  build:
    name: Build package
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        include:
          - os: ubuntu-latest
            target-platform: linux-64
          - os: ubuntu-latest
            target-platform: linux-aarch64
          - os: windows-latest
            target-platform: win-64
          - os: macos-latest
            target-platform: osx-64
          - os: macos-14
            target-platform: osx-arm64
    steps:
    - uses: actions/checkout@v4
    - name: Build conda package
      uses: prefix-dev/rattler-build-action@v0.2.21
      with:
        # needs to be unique for each matrix entry
        artifact-name: package-${{ matrix.target-platform }}
        build-args: --target-platform ${{ matrix.target-platform }}${{ matrix.target-platform == 'linux-aarch64' && ' --no-test' || '' }}

Upload to quetz

jobs:
  build:
    name: Build package
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Build conda package
      uses: prefix-dev/rattler-build-action@v0.2.21
    - run: |
        for pkg in $(find output -type f \( -name "*.conda" -o -name "*.tar.bz2" \) ); do
          echo "Uploading ${pkg}"
          rattler-build upload quetz "${pkg}"
        done
      env:
        QUETZ_SERVER_URL: https://my.quetz.server
        QUETZ_API_KEY: ${{ secrets.QUETZ_API_KEY }}
        QUETZ_CHANNEL: my-channel

Upload to prefix.dev

jobs:
  build:
    name: Build package
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Build conda package
      uses: prefix-dev/rattler-build-action@v0.2.21
    - run: |
        for pkg in $(find output -type f \( -name "*.conda" -o -name "*.tar.bz2" \) ); do
          echo "Uploading ${pkg}"
          rattler-build upload prefix -c my-channel "${pkg}"
        done
      env:
        PREFIX_API_KEY: ${{ secrets.PREFIX_API_KEY }}

Use private channel

You can use a private channel while building your conda package by setting the RATTLER_AUTH_FILE environment variable. As of now, rattler-build does not support a login command prefix-dev/rattler-build#334, so you need to create the RATTLER_AUTH_FILE manually.

jobs:
  build:
    name: Build package
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Authenticate with private channel
      run: |
        RATTLER_AUTH_FILE=${{ runner.temp }}/credentials.json
        echo '{"my.quetz.server": {"CondaToken": "${{ secrets.QUETZ_API_KEY }}"}}' > "$RATTLER_AUTH_FILE"
        echo "RATTLER_AUTH_FILE=$RATTLER_AUTH_FILE" >> "$GITHUB_ENV"
    - name: Build conda package
      uses: prefix-dev/rattler-build-action@v0.2.21
      with:
        build-args: -c conda-forge -c https://my.quetz.server/get/my-channel