@hyperfrontend/versioning

Versioning library with changelog parsing, conventional commits, and semver flow orchestration.

What is @hyperfrontend/versioning?

@hyperfrontend/versioning provides a comprehensive toolkit for managing software versioning in JavaScript/TypeScript projects. The library is built on a purely functional architecture with factory functions, immutable data structures, and composable operations.

Key Features

Changelog Parsing - Parse CHANGELOG.md files into structured objects with lossless round-tripping
Conventional Commits - Parse commit messages following the Conventional Commits specification
Semver Utilities - Parse, compare, increment, and validate semantic versions
Registry Client - Query npm registry for published versions and package metadata
Compare URLs - Generate platform-specific compare URLs for changelog entries (GitHub, GitLab, Bitbucket, Azure DevOps)
Monorepo Scope Filtering - Intelligent commit classification ensures changelogs only include relevant commits
Composable Operations - Build complex versioning workflows from simple, pure functions
Zero External Dependencies - Self-contained implementation with no third-party runtime dependencies

Architecture Highlights

Built on a purely functional architecture with factory functions and immutable data structures. All parsing uses character-by-character state machines for predictable O(n) performance. The library integrates with @hyperfrontend/project-scope for virtual file system operations and @hyperfrontend/data-utils for deep comparison.

👉 See ARCHITECTURE.md for detailed design principles, data flow diagrams, and module composition.

Why Use @hyperfrontend/versioning?

Type-Safe Changelog Manipulation

Working with CHANGELOG.md files programmatically typically involves fragile string manipulation. This library parses changelogs into fully typed data structures with factory functions for creating entries, sections, and items. Modify changelog content with confidence using immutable operations and round-trip safely back to markdown.

Unified Versioning Primitives

Version management requires coordinating semver parsing, commit analysis, changelog generation, and registry queries. This library provides all these primitives in one cohesive package with consistent APIs. Query npm for published versions, parse commit history, calculate version bumps, and generate changelog entries — all composable into custom release workflows.

Zero-Dependency CI Integration

Designed for automated pipelines where minimal attack surface matters. Zero external runtime dependencies and state-machine parsing ensure predictable performance on any input. All parsers enforce input length limits to prevent resource exhaustion.

Installation

npm install @hyperfrontend/versioning

Quick Start

Parsing a Changelog

import { parseChangelog } from '@hyperfrontend/versioning'
import fs from 'fs'

// Parse existing changelog content
const content = fs.readFileSync('CHANGELOG.md', 'utf-8')
const changelog = parseChangelog(content)

// Access entries
for (const entry of changelog.entries) {
  console.log(`Version ${entry.version} - ${entry.date}`)
  for (const section of entry.sections) {
    console.log(`  ${section.heading}: ${section.items.length} changes`)
  }
}

// Access metadata
// Formats: 'keep-a-changelog' (https://keepachangelog.com), 'conventional', etc.
console.log(changelog.metadata.format)

Parsing Conventional Commits

import { parseConventionalCommit } from '@hyperfrontend/versioning'

const commit = parseConventionalCommit('feat(api): add user authentication')

console.log(commit.type) // 'feat'
console.log(commit.scope) // 'api'
console.log(commit.subject) // 'add user authentication'
console.log(commit.breaking) // false

Checking for Breaking Changes

import { parseConventionalCommit } from '@hyperfrontend/versioning'

// Breaking change via !
const commit1 = parseConventionalCommit('feat(api)!: remove deprecated endpoint')
console.log(commit1.breaking) // true

// Breaking change via footer
const commit2 = parseConventionalCommit(\`fix: update API response format

BREAKING CHANGE: Response structure has changed\`)
console.log(commit2.breaking) // true
console.log(commit2.breakingDescription) // 'Response structure has changed'

API Overview

Changelog Models

Changelog - Complete representation of a CHANGELOG.md file
ChangelogEntry - A single version entry with date and sections
ChangelogSection - A category of changes (Features, Bug Fixes, etc.)
ChangelogItem - An individual change with description and references

Commit Models

ConventionalCommit - Parsed conventional commit message
CommitType - Type constants (feat, fix, docs, etc.)
CommitFooter - Parsed footer/trailer from commit message

Parser Functions

parseChangelog(content: string) - Parse markdown changelog content
parseConventionalCommit(message: string) - Parse a commit message
tokenize(input: string) - Low-level tokenizer for changelog content

Module Documentation

Module	Description	Documentation
`changelog/`	Parse and manipulate CHANGELOG.md files	README
`commits/`	Parse conventional commit messages	README
`semver/`	Semantic version parsing and comparison	README
`registry/`	npm registry client	README
`git/`	Git operations abstraction	README
`workspace/`	Project discovery and package.json	README
`flow/`	Version release workflow orchestration	README
`repository/`	Repository detection and compare URLs	README

👉 See ARCHITECTURE.md for module composition diagrams and data flow.

Compatibility

Platform	Support
Node.js	✅
Browser	❌

Output Formats

Format	File	Tree-Shakeable
ESM	`index.esm.js`	✅
CJS	`index.cjs.js`	❌

Security

All parsers use state-machine tokenization with O(n) complexity and enforce input length limits (commit messages: 10KB, changelog files: 1MB) to prevent resource exhaustion. Character-by-character parsing eliminates regex-based vulnerabilities.

Part of hyperfrontend

This library is part of the hyperfrontend monorepo.

📖 Full documentation

Works seamlessly with @hyperfrontend/project-scope for virtual file system operations
Looking for cryptographic utilities? See @hyperfrontend/cryptography

License

MIT