Disclaimer

Hi! I'm happy you're here. This project is very much in its early stages; so use with caution and please file issues and pull requests as you please. Basically, so far, I've just forked go.i3wm.org/i3.git and replaced every instance of "i3" with "sway."

Your help is appreciated! I'm happy to maintain this library.

go-sway

Package sway provides a convenient interface to the sway window manager via its IPC interface.

See its documentation for more details.

Advantages over other sway IPC packages

Here comes a grab bag of features to which we paid attention. At the time of writing, most other sway IPC packages lack at least a good number of these features:

Retries are transparently handled: programs using this package will recover automatically from in-place sway restarts. Additionally, programs can be started from xsession or user sessions before sway is even running.
Version checks are transparently handled: if your program uses features which are not supported by the running sway version, helpful error messages will be returned at run time.
Comprehensive: the entire documented IPC interface of the latest stable sway version is covered by this package. Tagged releases match sway’s major and minor version.
Consistent and familiar: once familiar with the sway IPC protocol’s features, you should have no trouble matching the documentation to API and vice-versa.
Good test coverage (hard to display in a badge, as our multi-process setup breaks go test’s -coverprofile flag).
Implemented in pure Go, without resorting to the unsafe package.
Works on little and big endian architectures.

Scope

sway’s entire documented IPC interface is available in this package.

In addition, helper functions which are useful for a broad range of programs (and only those!) are provided, e.g. Node’s FindChild and FindFocused.

Packages which introduce higher-level abstractions should feel free to use this package as a building block.

Assumptions

The sway(1) binary must be in $PATH so that the IPC socket path can be retrieved.
For transparent version checks to work, the running sway version must be ≥ 4.3 (released 2012-09-19).

Testing

Be sure to include the target sway version (the most recent stable release) in $PATH and use go test as usual: