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 parallelized 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.yaml file:

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

Environment¶

Commands, which are executed as custom publishers only inherit a subset of the system 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.

Environment variables that are kept:

HOME
USER
USERPROFILE
TMPDIR
TMP
TEMP
PATH

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

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

The publisher explicit environment variables take precedence over the inherited set of variables as well.

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.yaml

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

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

    # Allows to further filter the artifacts.
    #
    # Artifacts that do not match this expression will be ignored.
    #
    # This feature is only available in GoReleaser Pro..
    # Since: v2.5.
    # Templates: allowed.
    if: '{{ eq .Os "linux" }}'

    # Publish checksums.
    checksum: true

    # Upload metadata.json and artifacts.json.
    meta: true

    # Publish signatures.
    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

    # Whether to disable this particular upload configuration.
    #
    # Templates: allowed.
    disable: "{{ if .IsNightly }}true{{ end }}"

    # You can publish extra pre-existing files.
    # The filename published will be the last part of the path (base).
    # If another file with the same name exists, the last one found will be used.
    #
    # Templates: allowed.
    extra_files:
      - glob: ./path/to/file.txt
      - glob: ./glob/**/to/**/file/**/*
      - glob: ./glob/foo/to/bar/file/foobar/override_from_previous
      - glob: ./single_file.txt
        name_template: file.txt # note that this only works if glob matches 1 file only

    # Additional templated extra files to published.
    # Those files will have their contents pass through the template engine,
    # and its results will be published.
    #
    # This feature is only available in GoReleaser Pro.
    # Templates: allowed.
    templated_extra_files:
      - src: LICENSE.tpl
        dst: LICENSE.txt

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.

Tip

Discover more about the name template engine.