0 Fork 0

mirror of https://github.com/kevinveenbirkenbach/computer-playbook.git synced 2026-11-12 13:47:01 +00:00

Files

T

kevinveenbirkenbachandClaude Opus 4.8 dd3d83148e feat(readme): show Ansible role dependencies in Cosmos with a gear marker

Roles declared under meta/main.yml dependencies now appear on both the
Dependencies and Dependents side, labelled with the glossary gear
symbol and connected by a fixed 1:1 edge; the legend explains it. All
role READMEs regenerated.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-17 14:44:34 +02:00

3.1 KiB

Raw Blame History

System Utility: Git Pull (Shallow & Pinned)

Description

This Ansible role provides a robust, reusable Git pull utility for system automation. It performs shallow clones or updates of Git repositories and optionally pins the working tree to a specific tag (e.g. stable) in a detached HEAD state.

The role is designed to solve common automation pitfalls such as:

conflicting local tags (would clobber existing tag)
detached HEAD updates
annotated vs. lightweight tags
reliable change detection for Ansible

Internally, the role delegates complex Git logic to a small, well-tested Python helper script, keeping the Ansible YAML concise and readable.

Overview

This role:

Ensures a repository exists at a given destination
Clones the repository shallowly if it does not exist
Updates an existing repository in a detached-safe manner
Optionally removes conflicting local tags before fetching
Optionally pins the checkout to a specific tag (e.g. stable)
Marks the Ansible task as changed if:
- the repository was cloned
- tags were removed
- the pinned tag appeared for the first time
- the pinned tag moved on the remote (optional)

Cosmos

The diagram places System Utility: Git Pull (Shallow & Pinned) in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).

flowchart LR
    subgraph role [sys-util-git-pull 💻]
        svc_util_git_pull["util-git-pull"]
    end

Solid 1:1 edges are fixed relationships; dashed 0..1 edges are conditional (enabled only in matching deployments). Node markers show the role's deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in meta/main.yml.

Purpose

The purpose of this role is to provide a generic, reusable Git pull primitive for other roles in the Infinito.Nexus ecosystem.

Typical use cases include:

installing tools pinned to a stable tag
reproducible system deployments
CI/CD-friendly shallow clones
avoiding fragile inline Git shell logic in roles

Features

Shallow Clone & Update (--depth)
Detached-safe Branch Updates
Optional Tag Pinning (e.g. stable)
Annotated Tag Support (tag^{})
Local Tag Conflict Healing
Deterministic changed_when Semantics
Verbose Debug Logging (stderr-only)

Design Notes

All human-readable logs go to stderr
Machine-readable state (CHANGED=…) is written to stdout
This guarantees reliable changed_when behavior in Ansible
The Python helper is intentionally self-contained and unit-testable

Credits

Implemented by Kevin Veen-Birkenbach. Part of the Infinito.Nexus Project and maintained by Kevin Veen-Birkenbach. Licensed under the Infinito.Nexus Community License (Non-Commercial).

3.1 KiB Raw Blame History