Package envtest provides a fake environment variable backend for testing purposes.

Package fastcopy implements the core fastcopy functionality.

Package huffman implements an n-ary Huffman coding algorithm to generate prefix-free labels for a set of items.

Package iotest provides IO-related testing utilities.

Package log provides leveled logging interface.

Package must provides helper functions to assert program invariants.

Package paniclog provides a handler for panicking code that logs the panic to an io.Writer.

Package stringobj aids in writing String methods for objects with a JSON-like output.

Package tail provides support for tailing an io.Reader that isn't yet done filling up.

Package tmux provides APIs to interact with the tmux(1) terminal multiplexer.

Package ui defines a thin framework for building terminal UIs using tcell and accompanying widgets.