CMake - CMake is an open-source, cross-platform family of tools designed to build, test and package software.
CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
SCons - SCons is an Open Source software construction tool—that is, a next-generation build tool.
ESLint - The fully pluggable JavaScript code quality tool
Ninja Build - Ninja is a small build system with a focus on speed.
SensioLabs Insight - PHP Project Quality Done Right.