Ninja

ninja is a small, very fast build system.

I've ran into it most commonly as a CMake backend, but it's also supported in multiple Google products like Chrome and Android (parts of it, anyway).

Here are some practical tips I've collected over time.

• In AOSP, you can find the ninja database at out/soong/build.ninja
• To list all targets, run ninja -t targets all
• To generate a JSON compilation database for use with clangd, run ninja -t compdb > compile_commands.json

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