Ninja works well for large projects with many files that need many incremental builds over a short time. So, the key is to choose the right build generator that works well with Ninja. For example, Make requires each file to be specified in the build file, making the process of writing these files extremely complicated, time consuming, and prone to errors. Problems can be introduced depending on the build generator used. On the downside, Ninja can’t build projects without a build file, so it must always work with a build generator, such as CMake or Meson, the most popular build generators that work with Ninja. So developers will always have a realistic idea of build time without fancy background optimizations done by daemons, and it also makes Ninja very portable and simple.Īccording to benchmarks, Ninja performs as well as Make in a fresh build but outperforms it in an incremental build by what appears to be an exponentially increasing factor. Furthermore, Ninja doesn’t use a background daemon to constantly keep track of things in memory it always starts its own binary from scratch and works without relying on any state. It incentivizes developers to write code that can be built in parallel, using defaults that utilize the -jN flag, which causes Ninja to build in parallel. The main advantage of Ninja is its speed in incremental builds. Next, we’ll take a closer look at the strengths and weaknesses of Ninja as a build system. This motivates developers to ensure that their code can be built in parallel, and any problems can be detected early in the development process. For example, it builds things in parallel by default. This philosophy even goes into the default arguments, which are designed to provide the best performance with little to no tinkering. It’s designed to run builds as fast as possible.It’s designed to have its input files generated by a higher-level build system such as CMake or Meson, and.Ninja differs from other build systems in two major ways: Since its inception, some notable projects built using Ninja include Chrome, Android, all Meson projects, Swift, and LLVM.įor a very interesting review and tech analysis of the Ninja build system, Ninja’s creator wrote a critical review article eight years after its original release. As mentioned, it was originally developed by Evan Martin, a Google dev, as a resource to speed up the building of projects such as Chrome. Ninja is a fast build tool that can also be used as a build tool for other build generators. Next, let’s take a closer look at Ninja and when you may want to use it. Build tool: Software that takes in a build file previously generated by a build generator and then builds a software package.
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