# blynn/gitmagic

A guide to using Git

Repository: https://github.com/blynn/gitmagic
Canonical: https://ross.abutalabs.com/products/gitmagic
Homepage: http://cs.stanford.edu/~blynn/gitmagic/
Language: Makefile
License: GPL-3.0
License Family: copyleft
Last push: 2024-01-01T00:44:05+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 6684, "days_push": 976, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1926, forks 664 (observed 2026-08-28T04:05:55.624984+00:00)

## What it is
Git Magic is a free online book (GPL-3.0) that teaches Git version control from basics to advanced techniques, built with a Makefile-based toolchain. It covers topics like branching, history rewriting, multiplayer workflows, and Git's internals.

## Use cases
- learn git from scratch
- understand git branching and merging
- learn how to rewrite git history
- understand git internals like the object database
- find git recipes for common tasks
- teach a team version control with git

## When to choose
- you want a free, in-depth prose guide to Git rather than command reference docs
- you are a beginner who wants practical examples before diving into man pages
- you want to understand why Git works the way it does, including internals

## When to avoid
- you need an interactive tutorial or hands-on sandbox rather than a book
- you need up-to-date coverage of the newest Git features
- you want official documentation for a specific Git version

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation, version-control, developer-tools
- domain: version-control, developer-tools, tutorials, documentation
- platform: cross-platform
- tags: git-guide, book, tutorial, version-control-guide

## Member repositories
- blynn/gitmagic (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:55.624984+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:09:13.053024+00:00, confidence not recorded.
  - homepage: http://cs.stanford.edu/~blynn/gitmagic/ (fetched 2026-08-29T10:48:47.949161+00:00, sha 6f9ca7923371)
  - site_page: https://crypto.stanford.edu/~blynn/gitmagic/ch02.html (fetched 2026-08-29T10:48:47.952946+00:00, sha 7f7944ff76a3)
  - site_page: https://crypto.stanford.edu/~blynn/gitmagic/ch07.html (fetched 2026-08-29T10:48:47.955277+00:00, sha b77aa067fd05)
- Data as of 2026-08-30T08:39:29.467469+00:00.