This project is a gazelle extension that generates and updates rules_nixpkgs definitions for Bazel from your workspace.
For each directory containing a default.nix file, an appropriate nixpkgs_package external repository is created within the WORKSPACE file, as well as any supporting definitions needed to make derivation work when invoked from the Bazel. Any required files or dependent nix derivations are traced and captured as long as they are part of your workspace.
To see the extension in action:
$ bazel run //examples:generate$ cd examples/vanilla$ bazel run //:gazelle-update-all
You can learn more about the extension setup by browsing the examples subdirectory.