Branching Strategy for Documentation — Complete Guide

In this tutorial, you will learn about Branching Strategy for Documentation. We cover key concepts, practical examples, and best practices to help you master this topic.

A branching strategy for documentation organizes changes across versions, features, and hotfixes. Learn Git branching patterns for docs, including Gitflow, trunk-based, and release branch approaches.

What You'll Learn

You will learn different branching strategies for documentation, when to use each pattern, and how to align doc branching with your code branching workflow.

Why It Matters

Without a branching strategy, documentation changes conflict, versions get mixed up, and releases become chaotic. A clear branching strategy ensures doc updates are released alongside the correct code versions.

Real-World Use

DodaTech uses a trunk-based approach with short-lived feature branches for most doc changes. For major version releases, a release branch maintains docs for the previous version while new docs are prepared.

flowchart LR
  A[Main Branch] -->|Create Feature Branch| B[docs/add-auth-guide]
  B -->|PR and Review| A
  A -->|Create Release Branch| C[release/v2.0]
  C -->|Doc Updates for v2.0| D[release/v2.0-docs]
  D -->|PR| C
  C -->|Merge to Main| A
  A:::current
  classDef current fill:#f90,color:#fff,stroke:#333,stroke-width:2px

Branching Strategies Compared

Trunk-Based Development for Docs

The simplest approach: create short-lived branches from main and merge quickly.

# Create a branch for a doc update
git checkout -b docs/update-api-auth
# Make changes and commit
git add content/api/authentication.md
git commit -m "docs: update API auth example"
# Push and create PR
git push origin docs/update-api-auth
# After merge, delete the branch
git branch -d docs/update-api-auth

Feature Branch Naming Convention

Use consistent branch names to identify the type and scope:

docs/add-authentication-guide
docs/fix-installation-typo
docs/update-api-reference-v2
docs/remove-deprecated-endpoints

Branching for Multi-Version Docs

When supporting multiple documentation versions:

# Current version (v2.0)
main
# Previous version (v1.0)
release/v1.0
# Bug fix for v1.0 docs
git checkout -b fix/v1.0-typo release/v1.0
# After fix, merge to release branch and cherry-pick to main
git checkout release/v1.0
git merge fix/v1.0-typo
git checkout main
git cherry-pick <commit-hash>

Automation with Branch Patterns

# .github/workflows/docs-branch.yml
name: Docs Branch Workflow
on:
  pull_request:
    branches:
      - main
      - release/*
    paths:
      - 'content/**'
      - 'static/**'
jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Lint docs
        run: markdownlint-cli2 content/

The workflow only triggers when documentation files change and the PR targets main or a release branch.

Common Mistakes

1. Long-Lived Doc Branches

Doc branches that live for weeks create merge conflicts and become outdated. Keep doc branches short-lived.

2. Mixing Doc and Code Changes in One Branch

When doc changes are mixed with code changes in the same branch, they cannot be reviewed or deployed independently.

3. No Branch Protection for Main

Without branch protection, anyone can push directly to main, bypassing review. Require PRs for all changes.

4. Forgetting to Update Multiple Versions

A bug fix in v2.0 docs may also apply to v1.0. Cherry-pick or manually port the fix to older version branches.

5. Deleting Release Branches Prematurely

Keep release branches for as long as the corresponding software version is supported. Deleting early breaks historical doc links.

Practice Questions

1. What is the simplest branching strategy for documentation?

Trunk-based development with short-lived feature branches.

2. How do you handle doc updates for an older software version?

Create a branch from the release branch for that version, make the fix, and merge back to the release branch.

3. Why should doc branches be short-lived?

Long-lived branches create merge conflicts and often become outdated as other docs change.

4. What branch protection rules should documentation repositories have?

Require pull requests for main, require status checks to pass, require at least one approval, and restrict direct pushes.

5. Challenge: Create a branching strategy document for a documentation project that supports two active versions. Include branch naming conventions, merge workflows, and CI triggers.

FAQ

Mini Project

Create a branching strategy document for a documentation project that aligns with the codebase. Set up branch protection rules on main, create a release branch pattern, and configure CI to trigger only on doc changes.

What's Next

Now that you have a branching strategy, learn about Automation Tools that help manage your documentation pipeline. Then explore Documentation Testing.