zigimports

Automatically remove unused imports and global variables from Zig files.

Zig currently entirely ignores unused globals, which means unused imports aren't errors. They aren't even warnings.

In fact, you can have an import importing a module/file that doesn't even exist, and the Zig compiler will simply ignore it.

zigimports helps you avoid that by cleaning up unused imports.

[!NOTE] Zig plans to eventually address this issue in the compiler directly: https://github.com/ziglang/zig/issues/335

Installation

Requires Zig 0.13.0 or newer:

zig build --release=safe

You should have the ./zig-out/bin/zigimports binary now.

Usage

Basic usage:

$ zigimports path/to/file.zig
path/to/file.zig:1:0: std is unused
path/to/file.zig:2:0: otherfile is unused
path/to/file.zig:9:0: MyStruct is unused

$ zigimports path/to/file.zig --fix
path/to/file.zig - Removed 3 unused imports

To tidy up your entire codebase, use:

zigimports --fix .