goreleaser/www/docs/customization/publishers.md

title
Custom Publishers

GoReleaser supports publishing artifacts by executing a custom publisher.

How it works

You can declare multiple publishers instances. Each publisher will be executed for each (filtered) artifact. For example, there will be a total of 6 executions for 2 publishers with 3 artifacts.

Publishers run sequentially in the order they're defined and executions are parallelised between all artifacts. In other words the publisher is expected to be safe to run in multiple instances in parallel.

If you have only one publishers instance, the configuration is as easy as adding the command to your .goreleaser.yml file:

publishers:
  - name: my-publisher
    cmd: custom-publisher -version={{ .Version }} {{ abs .ArtifactPath }}

Environment

Commands which are executed as custom publishers do not inherit any environment variables (unlike existing hooks) as a precaution to avoid leaking sensitive data accidentally and provide better control of the environment for each individual process where variable names may overlap unintentionally.

You can however use .Env.NAME templating syntax which enables more explicit inheritance.

- cmd: custom-publisher
  env:
    - SECRET_TOKEN={{ .Env.SECRET_TOKEN }}

Variables

Command (cmd), workdir (dir) and environment variables (env) support templating

publishers:
  - name: production
    cmd: |
      custom-publisher \
      -product={{ .ProjectName }} \
      -version={{ .Version }} \
      {{ .ArtifactName }}      
    dir: "{{ dir .ArtifactPath }}"
    env:
      - TOKEN={{ .Env.CUSTOM_PUBLISHER_TOKEN }}

so the above example will execute custom-publisher -product=goreleaser -version=1.0.0 goreleaser_1.0.0_linux_amd64.zip in /path/to/dist with TOKEN=token, assuming that GoReleaser is executed with CUSTOM_PUBLISHER_TOKEN=token.

Supported variables:

• Version
• Tag
• ProjectName
• ArtifactName
• ArtifactPath
• Os
• Arch
• Arm

Customization

Of course, you can customize a lot of things:

# .goreleaser.yml
publishers:
  -
    # Unique name of your publisher. Used for identification
    name: "custom"

    # IDs of the artifacts you want to publish
    ids:
     - foo
     - bar

    # Publish checksums (defaults to false)
    checksum: true

    # Publish signatures (defaults to false)
    signature: true

    # Working directory in which to execute the command
    dir: "/utils"

    # Command to be executed
    cmd: custom-publisher -product={{ .ProjectName }} -version={{ .Version }} {{ .ArtifactPath }}

    # Environment variables
    env:
      - API_TOKEN=secret-token

These settings should allow you to push your artifacts to any number of endpoints which may require non-trivial authentication or has otherwise complex requirements.

Learn more about the name template engine.