GCIP2

GCIP2 is a Python DSL for building GitLab CI/CD pipelines using strongly typed Pydantic models and a fluent builder API.

Instead of writing large YAML files, pipelines are defined in Python, validated against the official GitLab CI schema, and rendered into GitLab-compatible YAML.

Features

Strongly typed GitLab CI models
Fluent builder API
Reusable job builders
Pipeline inheritance
JSON Schema validation
Automatic YAML generation
Dynamic pipeline discovery
GitLab-compatible output

Installation

Create pyproject.toml with pyproject configuration

[project]
name = "dev"
version = "0.0.0"
description = ""
requires-python = ">=3.11,<4.0"

uv add gcip2

Quick Start

Initialize a new project:

dothat run init

This generates a minimal project structure:

.
├── ci.py
├── pyproject.toml
├── environment.toml
└── .pre-commit-config.yaml

Generate a child pipeline:

dothat run build-pipeline

or explicitly:

dothat run build-pipeline \
    --ci-file ci.py \
    --out-pipeline out/pipeline.gitlab-ci.yml

Generate the root .gitlab-ci.yml:

dothat run build-gitlab-ci

dothat run build-gitlab-ci \
    --ci-file ci.py \
    --out-gitlab-ci .gitlab-ci.yml

Documentation

Detailed documentation is available in the docs/ directory.

Document	Description
docs/pipeline.md	Creating pipelines, jobs and workflow configuration
docs/builder.md	Pipeline builder, rendering and YAML generation
docs/pipeline_core.md	Reference for the typed GitLab CI models
docs/secrets.md	SecretsHandler with Vault integration
docs/project_config.md	ProjectConfig with global environment
CHANGELOG.md	Project changelog

Project Structure

A typical project consists of two builders:

ci.py
 ├── Pipeline(PipelineBuilderImpl)
 │      └── generates:
 │          out/pipeline.gitlab-ci.yml
 │
 └── GitlabCi(GitlabCiBuilderImpl)
        └── generates:
            .gitlab-ci.yml

Pipeline defines the reusable downstream pipeline, while GitlabCi defines the repository's root GitLab CI configuration.

CLI

Initialize a project:

dothat run init

Force regeneration of template files:

dothat run init --force

Build a child pipeline:

dothat run build-pipeline

Build the repository .gitlab-ci.yml:

dothat run build-gitlab-ci

Validation

Generated pipelines can be validated against the bundled GitLab JSON schema before rendering.

External Links

JSON Schema: https://json-schema.org/draft-07/json-schema-release-notes#keywords
GitLab Pipeline Schema: https://gitlab.com/gitlab-org/gitlab-foss/-/raw/master/app/assets/javascripts/editor/schema/ci.json
GitLab CI Documentation: https://docs.gitlab.com/ci/pipeline_editor/#view-full-configuration

License

https://gl.pivlab.space/rnd/gcip2/-/blob/master/LICENCE.md

Release files for gcip2 0.2.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for gcip2 0.2.0
File	Size	Uploaded
gcip2-0.2.0.tar.gz	106.0 kB	Aug 25, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for gcip2 0.2.0
File	Interpreter	ABI	Platform	Reset
gcip2-0.2.0-py3-none-any.whl 61.0 kB Aug 25, 2026	Python 3	none	any	Details

Total release size: 167.0 kB

Release files / gcip2-0.2.0.tar.gz

Download URL	gcip2-0.2.0.tar.gz
Size	106.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`56aad0b93deb99d326778fedfa17ebe3c17e86bb7dd6b16a853091a4d80117b1`
BLAKE2b-256 checksum How to use checksums	`012134ecd42a0eee6ab4c64285e428386ff8d4fdedb8bc7e881487a03d000eed`
Upload date	Aug 25, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.9.30 {"installer":{"name":"uv","version":"0.9.30","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Debian GNU/Linux","version":"12","id":"bookworm","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":true}`

Release files / gcip2-0.2.0-py3-none-any.whl

Download URL	gcip2-0.2.0-py3-none-any.whl
Size	61.0 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`2b7b2c5973cd6d661b7f8b48831e9350440a67be573ad1043b788fe763fa6bc4`
BLAKE2b-256 checksum How to use checksums	`75d5fecfdac2868e1bbc73fbf2cb3c1b3dcf08248ad0e3ff36fb7e0977635bad`
Upload date	Aug 25, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.9.30 {"installer":{"name":"uv","version":"0.9.30","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Debian GNU/Linux","version":"12","id":"bookworm","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":true}`