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Shopify/liquid

This system is a Ruby-based Liquid template engine library that provides a robust framework for parsing, rendering, and managing template files. It features a modernized architecture with explicit lexer and parser components, supporting strict and lax parsing modes, along with a comprehensive suite of template tags and filters. The codebase includes extensive integration and unit tests to ensure compatibility across different Ruby configurations and performance benchmarks to track rendering efficiency.

68.6

Adequate · 2 August 2026

6.7k

lines of production code

Ruby

primary language

8

bus factor · 252 authors in all

3

measurements over time

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How it got here

2008 · Liquid engine refactoring and modernization

This period focused on a comprehensive architectural overhaul of the Liquid template engine, introducing a new parsing and rendering system with explicit classes for the lexer, parser, and environment. The team modernized the codebase by enforcing frozen string literals, updating dependencies, and removing legacy components like the Rails view handler and old test suite.

10 changes

2009–2014 · Performance testing and test coverage expansion

This period focused on establishing a robust performance testing infrastructure for Liquid templates, including benchmarking tools and mock data for realistic profiling. Simultaneously, the project significantly expanded its test suite, adding comprehensive unit and integration tests for core components, tags, and parsing behaviors.

8 changes

2020–2026 · Testing and tooling expansion

This period focused on expanding test coverage and developer tooling for the Liquid template engine. The team added integration tests for disabled tags, performance benchmarks for parsing, and spec adapters for various Ruby configurations. A new command-line utility was also introduced to facilitate template rendering.

4 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 2 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 807d45a6b3 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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