Apache Maven vs Shake

Apache Maven is a free build tool for Java projects. It uses a project object model, or POM, and plugins to manage compilation, testing and documentation through a uniform build system. Maven manages dependencies, including transitive dependencies and automatic updates, and can download them from a central repository. Project metadata can produce outputs such as JARs, WARs and distributions. Maven can also generate project information, including changelogs, cross-referenced sources, dependency lists and unit test reports. Java or scripting-language plugins extend it, and it can work with source control systems such as Subversion or Git to manage tag-based releases. It runs on Windows, macOS and Linux. Maven 3.10 and later requires JDK 8 or above to execute, while toolchains can target other JDK versions. Its project layout is opinionated, so projects with unusual structures that cannot be reorganized may have to give up some Maven features or Maven itself. The software is distributed under Apache License 2.0; its listed plan costs nothing.

Shake is an open-source Haskell library for writing build systems, positioned as an alternative to make, Ant, and SCons. Build rules can discover dependencies after earlier rules run, including dependencies revealed by generated files. Supported dependency inputs include files, file existence, environment variables, directory contents, and user-defined values. Shake provides parallel and multicore builds, resource constraints, build caching, and avoids rebuilding outputs when dependency changes do not alter results. Profiling reports can include plots, tables, graphs, and explanations of what built and why. It reports estimated completion time and percentage complete, with progress information usable in continuous-integration systems such as Team City. Shake can execute Ninja files for integration with CMake and Meson, and can build projects using mixed languages, including C/C++, Docker, JavaScript, HTML, and CSS. Build definitions are Haskell programs, although the manual targets readers without prior Haskell knowledge. Shake runs on Linux, macOS, and Windows and is licensed under BSD. Installation uses Haskell Stack followed by `stack install shake`.