Automation Tools for Documentation — Complete Guide

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

Automation tools reduce manual effort in documentation workflows. Learn about pre-commit hooks, GitHub Actions, Makefiles, npm scripts, and task runners that automate linting, building, and deploying docs.

What You'll Learn

You will learn how to automate documentation tasks using pre-commit hooks, Makefiles, npm scripts, and CI workflows, so that quality checks run automatically without manual steps.

Why It Matters

Every manual step in the documentation workflow is a point of failure. Writers forget to run linters, skip spell checks, or deploy without building. Automation eliminates these failure points.

Real-World Use

DodaTech uses a combination of pre-commit hooks, a Makefile, and GitHub Actions to automate the entire documentation workflow — from local development to production deployment.

flowchart LR
  A[Writer Edits File] --> B[Pre-commit Hook]
  B --> C[Lint: markdownlint]
  C --> D[Spell Check: cspell]
  D --> E{Pass?}
  E -->|Yes| F[Commit Allowed]
  E -->|No| G[Commit Blocked]
  A:::current
  classDef current fill:#f90,color:#fff,stroke:#333,stroke-width:2px

Pre-commit Hooks

Pre-commit hooks run automated checks before a commit is created. They catch issues before they reach the Repository.

# .pre-commit-config.yaml
repos:
  - repo: https://github.com/igorshubovych/markdownlint-cli
    rev: v0.37.0
    hooks:
      - id: markdownlint
        args: ["--fix"]
  - repo: https://github.com/streetsidesoftware/cspell
    rev: v6.31.1
    hooks:
      - id: cspell
        args: ["--no-must-find-files"]
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: v4.4.0
    hooks:
      - id: trailing-whitespace
      - id: end-of-file-fixer
      - id: check-added-large-files

Install and run:

pip install pre-commit
pre-commit install
pre-commit run --all-files

Expected output:

markdownlint....................................................Passed
cspell..........................................................Passed
Trailing Whitespace.............................................Passed
End of File Fixer...............................................Passed
Check for added large files.....................................Passed

Makefile for Documentation Tasks

A Makefile centralizes common commands:

# Makefile
.PHONY: lint spell build serve deploy

lint:
	markdownlint-cli2 content/

spell:
	cspell "content/**/*.md"

build:
	hugo --gc --minify

serve:
	hugo server -D

check: lint spell build
	htmlproofer public/ --disable-external

deploy:
	npx netlify-cli deploy --dir=public --prod

all: check deploy

Usage:

make lint
make spell
make build
make check  # runs all checks

npm Scripts

For Node.js-based projects:

{
  "scripts": {
    "lint": "markdownlint-cli2 content/",
    "spell": "cspell content/**/*.md",
    "build": "hugo --gc --minify",
    "check": "npm run lint && npm run spell && npm run build",
    "serve": "hugo server -D",
    "deploy": "npx netlify-cli deploy --dir=public --prod"
  }
}

Usage:

npm run lint
npm run check

GitHub Actions Automation Matrix

# .github/workflows/automation.yml
name: Documentation Automation
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
jobs:
  quality:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: peaceiris/actions-hugo@v2
      - name: Lint
        run: make lint
      - name: Spell check
        run: make spell
      - name: Build
        run: make build
      - name: Link check
        run: htmlproofer public/ --disable-external

Common Mistakes

1. Too Many Pre-commit Hooks

Five or more pre-commit hooks slow down every commit and frustrate writers. Keep pre-commit hooks to linters only. Move slow checks to CI.

2. Hardcoding Paths in Scripts

Makefiles and scripts with hardcoded paths break when the project structure changes. Use relative paths or environment variables.

3. Not Documenting Available Commands

If writers do not know a Makefile or npm scripts exist, they will not use them. Add a comment in the README showing common commands.

4. Skipping Pre-commit Hooks with --no-verify

Allow skipping hooks only for emergency fixes. Track skip frequency to identify if hooks are too restrictive.

5. No Cross-Platform Compatibility

Makefiles use Unix commands that may not work on Windows. Use npm scripts or a task runner that works across platforms.

Practice Questions

1. What is the purpose of a pre-commit hook in documentation workflows?

It runs automated checks before a commit is created, catching errors before they reach the repository.

2. Why should slow checks be in CI instead of pre-commit hooks?

Pre-commit hooks should be fast. Slow hooks frustrate writers. Move slow checks like link checking to CI.

3. What is the advantage of a Makefile over npm scripts?

Makefiles work with any programming language. npm scripts require Node.js. Choose based on your project's tech stack.

4. How do you ensure writers run the Makefile commands?

Document available commands in the README and mention them in the onboarding guide.

5. Challenge: Create a pre-commit configuration for a documentation project that runs markdownlint, cspell, and trailing whitespace checks. Create a Makefile with lint, spell, build, check, and serve targets.

FAQ

Mini Project

Create a pre-commit configuration with markdownlint and cspell, a Makefile with lint, spell, build, and check targets, and a GitHub Actions workflow that runs all checks on every PR.

What's Next

With automation in place, learn about Documentation Testing to ensure your docs are technically accurate and complete. Then explore Docs-as-Code Templates.