Table of Contents

• GitLab Releases Resource
  • Source Configuration
    • Examples
  • Behavior
    • check: Check for released versions
    • in: Fetch assets from a release
      • Parameters
    • out: Publish a release
      • Parameters
  • Development
    • Prerequisites
    • Running the tests
    • Contributing
    • Credits

GitLab Releases Resource

Fetches and creates versioned GitLab releases. Note that check will skip tags that do not have associated releases.

⚠️ Limitations ⚠️

GitLab has a known bug (28978, 375489) making impossible to download assets published to a project using a private-token. When using in with such release, download assets will contain the plain HTML of GitLab's sign-in page.

Once fixed, this Concourse resource will behave as expected with no further modification.

Source Configuration

• repository: Required. The repository name that contains the releases.
• access_token: Required. Used for accessing a release in a private-repo during an in and pushing a release to a repo during an out. The access token you create is only required to have the repo or public_repo scope.
• gitlab_api_url: Optional. If you use a non-public GitLab deployment then you can set your API URL here.
• insecure: Optional. Default false. When set to true, Concourse will allow insecure connection to your GitLab API.
• tag_filter: Optional. If set, override default tag filter regular expression of v?([^v].*). If the filter includes a capture group, the capture group is used as the release version; otherwise, the entire matching substring is used as the version.

Examples

- name: gl-release
  type: gitlab-release
  source:
    repository: group/project
    access_token: abcdef1234567890

- get: gl-release

- put: gl-release
  params:
    tag: path/to/tag/file
    body: path/to/body/file
    globs:
    - paths/to/files/to/upload-*.tgz

To get a specific version of a release:

- get: gl-release
  version: { tag: 'v0.0.1' }

To set a custom tag filter:

- name: gl-release
  type: gitlab-release
  source:
    owner: concourse
    repository: concourse
    tag_filter: "version-(.*)"

Behavior

check: Check for released versions

Releases are listed and sorted by their tag, using https://github.com/cppforlife/go-semi-semantic. Few example:

• v1.0.0 < v1.0.5 < v1.10.0 < v2.0.0 (intuitive behaviour)
• v1.0.0-dev1 < v1.0.0-dev2 < v1.0.0 (empty dash postfix takes priority)
• v1.0.0-dev10 < v1.0.0-rc1 (dash postfixes are compared alphabetically)
• v1.0.0.1 < v1.0.0_dev (non integer parts are compared alphabetically, 1 < 0_dev)

If version is specified, check returns releases from the specified version on. Otherwise, check returns the latest release.

in: Fetch assets from a release

Fetches artifacts from the given release version. If the version is not specified, the latest version is chosen using semver semantics.

Also creates the following files:

• tag containing the git tag name of the release being fetched.
• version containing the version determined by the git tag of the release being fetched.
• body containing the body text of the release.
• commit_sha containing the commit SHA the tag is pointing to.

Parameters

• globs: Optional. A list of globs for files that will be downloaded from the release. If not specified, all assets will be fetched.
• include_sources: Optional. A list of source format to download from the release. If not specified, no sources will be fetched (i.e.: ["zip", "tar.gz","tar.bz2", "tar"]).
• include_source_tarball: Optional. Enables downloading of the source artifact tarball for the release as source.tar.gz. Defaults to false. Equivalent to include_sources: ["tar.gz"].
• include_source_zip: Optional. Enables downloading of the source artifact tarball for the release as source.zip. Defaults to false. Equivalent to include_sources: ["zip"].

out: Publish a release

Given a commit_sha and tag, this tags the commit and creates a release on GitLab, then uploads the files matching the patterns in globs to the release.

Parameters

• commitish: Optional, if tag is not specified. A path to a file containing the commitish (SHA, tag, branch name) that the new tag and release should be associated with.
• tag: Required. A path to a file containing the name of the Git tag to use for the release.
• tag_prefix: Optional. If specified, the tag read from the file will be prepended with this string. This is useful for adding v in front of version numbers.
• name: Optional. A path to a file containing the name of the release. Defaults to tag value.
• body: Optional. A path to a file containing the body text of the release.
• globs: Optional. A list of globs for files that will be uploaded alongside the created release.

Development

Prerequisites

• Go lang is required - version 1.16 is tested; earlier versions may also work.
• Docker is required - version 19.03.x is tested; earlier versions may also work.
• go mod is used for dependency management of the golang packages.

Running the tests

The tests have been embedded with the Dockerfile, ensuring that the testing environment is consistent across any docker enabled platform. When the Docker image builds, the tests are run inside the Docker container, on failure they will stop the building process.

Run the tests with the following command:

docker build -t gitlab-release-resource .

Contributing

Please make all pull requests to the master branch and ensure tests pass locally.

Credits

This project was initially created by @edtan and forked from gitlab-release-resource which is no longer maintained. It has been re-imported to get rid of the fork relationship to the repository github-release-resource.