Go sigar is a golang implementation of the sigar API. The Go version of sigar has a very similar interface, but is being written from scratch in pure go/cgo, rather than cgo bindings for libsigar.
$ go get github.com/cloudfoundry/gosigar
$ cd $GOPATH/src/github.com/cloudfoundry/gosigar/examples
$ go run uptime.go
$ export GOPATH=~/gocode
$ mkdir -p $GOPATH/src/github.com/cloudfoundry
$ cd $GOPATH/src/github.com/cloudfoundry
$ gerrit clone ssh://[<your username>@]reviews.cloudfoundry.org:29418/gosigar.git
$ cd gosigar
$ go test
Currently targeting modern flavors of darwin and linux.
Apache 2.0