tap-gitlab

GitLab tap class.

Built with the Meltano SDK for Singer Taps and Targets.

Important notice

• This repository's default branch legacy-stable is kept for compatibility reasons but is no longer under active development.
• New development is being performed against the main branch, which is based on a port to the Meltano SDK in Pull Request #65.
• For a stable experience, users of this tap should begin pinning their installations to a specific release instead of branch references. More instructions are provided within the README.md of the main branch.
• Releases 1.2.0 and 2.0.0 introduce breaking changes in the state management of the tap: streams now use numeric ids to track projects and groups to better handle changes in names. If you have bookmarks from a previous version, they will become invalid, meaning the tap will restart streams "from the beginning" the first time you run on this release.

Capabilities

• catalog
• state
• discover
• about
• stream-maps
• schema-flattening

Settings

Setting	Required	Default	Description
api_url	False	None	Optionally overrides the default base URL for the Gitlab API. If no path is provided, the base URL will be appended with /api/v4. E.g. 'https://gitlab.com' becomes 'https://gitlab.com/api/v4'.
graphql_api_url_base	False	None	Optionally overrides the default base URL for the Gitlab Graphql API. Example. 'https://gitlab.com/api'.
private_token	True	None	An access token to use when calling to the Gitlab API.
groups	False	None	A space delimited list of group ids, e.g. 'orgname1 orgname2 orgname3'
projects	False	None	A space delimited list of project ids, e.g. 'orgname/projectname1 orgname/projectname2
start_date	False	None	Optional. If provided, this is the furthest date for which data will be retrieved.
ultimate_license	False	False	If not set to 'true', the following streams will be ignored: 'epics' and 'epic_issues'.
fetch_merge_request_commits	False	False	If not set to 'true', the 'merge_request_commits' stream will be ignored.
fetch_pipelines_extended	False	False	If not set to 'true', the 'pipelines_extended' stream will be ignored.
fetch_group_variables	False	False	If not set to 'true', the 'group_variables' stream will be ignored.
fetch_project_variables	False	False	If not set to 'true', the 'project_variables' stream will be ignored.
fetch_site_users	False	None	Unless set to 'false', the 'site_users' stream will be included.
requests_cache_path	False	None	(Optional.) Specifies the directory of API request caches.When this is set, the cache will be used before calling to the external API endpoint. Any data not already cached will be recorded to this path as it is received.
stream_maps	False	None	Config object for stream maps capability.
stream_map_config	False	None	User-defined config values to be used within map expressions.
flattening_enabled	False	None	'True' to enable schema flattening and automatically expand nested properties.
flattening_max_depth	False	None	The max depth to flatten schemas.

A full list of supported settings and capabilities is available by running: tap-gitlab --about

Example Settings File

config.json

{
  "api_url": "https://gitlab.com/api/v4",   // optionally overrides the base URL
  "graphql_api_url_base": "https://gitlab.com/api",
  "private_token": "your-access-token",
  "groups": "myorg mygroup",
  "projects": "myorg/repo-a myorg/repo-b",
  "start_date": "2018-01-01T00:00:00Z",
  "ultimate_license": true,
  "fetch_merge_request_commits": false,
  "fetch_pipelines_extended": false,
  "fetch_group_variables": false,
  "fetch_project_variables": false
}

Additional Configuration Info

Notes on group and project options:

• either groups or projects need to be provided

• filling in 'groups' but leaving 'projects' empty will sync all group projects.

• filling in 'projects' but leaving 'groups' empty will sync selected projects.

• filling in 'groups' and 'projects' will sync selected projects of those groups.

• If ultimate_license is true (defaults to false), then the GitLab account used has access to the GitLab Ultimate or GitLab.com Gold features. It will enable fetching Epics, Epic Issues and other entities available for GitLab Ultimate and GitLab.com Gold accounts.

• If fetch_merge_request_commits is true (defaults to false), then for each Merge Request, also fetch the MR's commits and create the join table merge_request_commits with the Merge Request and related Commit IDs. In the current version of GitLab's API, this operation requires one API call per Merge Request, so setting this to True can slow down considerably the end-to-end extraction time. For example, in a project like gitlab-org/gitlab-foss, this would result to 15x more API calls than required for fetching all the other Entities supported by tap-gitlab.

• If fetch_pipelines_extended is true (defaults to false), then for every Pipeline fetched with sync_pipelines (which returns N pages containing all pipelines per project), also fetch extended details of each of these pipelines with sync_pipelines_extended. Similar concerns as those related to fetch_merge_request_commits apply here - every pipeline fetched with sync_pipelines_extended requires a separate API call.

• If fetch_group_variables is true (defaults to false), then Group-level CI/CD variables will be retrieved for each available / specified group. This feature is treated as an opt-in to prevent users from accidentally extracting any potential secrets stored as Group-level CI/CD variables.

• If fetch_project_variables is true (defaults to false), then Project-level CI/CD variables will be retrieved for each available / specified project. This feature is treated as an opt-in to prevent users from accidentally extracting any potential secrets stored as Project-level CI/CD variables.

• If using the --test=schema option, some value (which is ignored) must be provided for the projects or groups settings or none of the corresponding streams will be included in the output.

Installation

pipx install git+https://github.com/MeltanoLabs/tap-gitlab.git@v2.0.0-alpha1

Check the releases page in GitHub for the latest version number.

Available Stream Types

• Branches
• Commits
• Issues
• Pipelines
• Jobs
• Projects
• Project milestones
• Project Merge Requests
• Users
• Groups
• Group Milestones
• Group and Project members
• Tags
• Releases
• Group Labels
• Project Labels
• Epics (only available for GitLab Ultimate and GitLab.com Gold accounts)
• Epic Issues (only available for GitLab Ultimate and GitLab.com Gold accounts)
• Vulnerabilities
• Group Variables
• Project Variables

See also:

• Gitlab REST API Reference

[Optional] Create an initial state file

You can provide JSON file that contains a date for the API endpoints to force the application to only fetch data newer than those dates. If you omit the file it will fetch all GitLab data

{
  "project_278964": "2017-01-17T00:00:00Z",
  "project_278964_issues": "2017-01-17T00:00:00Z",
  "project_278964_merge_requests": "2017-01-17T00:00:00Z",
  "project_278964_commits": "2017-01-17T00:00:00Z"
}

Note:

• You have to provide the id of each project you are syncing. For example, in the case of gitlab-org/gitlab it is 278964.
• You can find the Project ID for a project in the homepage for the project, under its name.

To use your state file input, run tap-gitlab with:

tap-gitlab --config config.json [--state state.json]

Source Authentication and Authorization

To get a GitLab access token:

• Login to your GitLab account.
• Navigate to your profile page.
• Create an access token with 'read_api' permissions.

Usage

You can easily run tap-gitlab by itself or in a pipeline using Meltano.

Executing the Tap Directly

tap-gitlab --version
tap-gitlab --help
tap-gitlab --config CONFIG --discover > ./catalog.json

Developer Resources

Initialize your Development Environment

pipx install poetry
poetry install

Create and Run Tests

Create tests within the tap_gitlab/tests subfolder and then run:

poetry run pytest

You can also test the tap-gitlab CLI interface directly using poetry run:

poetry run tap-gitlab --help

Testing with Meltano

Note: This tap will work in any Singer environment and does not require Meltano. Examples here are for convenience and to streamline end-to-end orchestration scenarios.

Your project comes with a custom meltano.yml project file already created. Open the meltano.yml and follow any "TODO" items listed in the file.

Next, install Meltano (if you haven't already) and any needed plugins:

# Install meltano
pipx install meltano
# Initialize meltano within this directory
cd tap-gitlab
meltano install

Now you can test and orchestrate using Meltano:

# Test invocation:
meltano invoke tap-gitlab --version
# OR run a test `elt` pipeline:
meltano elt tap-gitlab target-jsonl

SDK Dev Guide

See the dev guide for more instructions on how to use the SDK to develop your own taps and targets.