focus is a tool to manage Git sparse checkouts derived from the Bazel build graph.
focus is written in Rust and supports macOS and Linux. Git v2.35+ and Bazel need to be installed in the PATH env.
WARN: If you run a cargo test you may run out of file descriptors. On MacOS you will need to use ulimit -n X to set a large file limit for the current shell.
TODO: Find instructions for increasing fd limit permanently.
TODO: Install Prerequisites for Linux
Install Rust, then install focus with
$ cargo install --locked --git https://github.com/twitter/focus
If you are the repository administrator, first configure focus for your repo using the Administration instructions.
For end-users, see Usage for instructions on how to use focus to manage your sparse checkouts.
For new or curious users, see Bazel Tutorial for instructions on how to try focus on the bazel repository itself.
See various design documents at https://github.com/twitter/focus/tree/main/focus/doc. Focus was presented at Git Merge 2022; see the slides here.