Support FreeBSD

dist_freebsd.go

@@ -0,0 +1,72 @@
+package osutil
+
+import (
+	"io/ioutil"
+	"os/exec"
+	"strings"
+)
+
+func getFreeBSDVersion() (string, bool) {
+	proc := exec.Command("freebsd-version", "-u")
+	raw, err := proc.Output()
+
+	if err != nil {
+		return "", false
+	}
+
+	return strings.TrimRight(string(raw), "\n"), true
+}
+
+func getOSRelease() (map[string]string, bool) {
+	osmap := make(map[string]string)
+
+	raw, err := ioutil.ReadFile("/etc/os-release")
+
+	if err != nil {
+		return osmap, false
+	}
+
+	s := string(raw)
+
+	for _, line := range strings.Split(s, "\n") {
+		if line == "" {
+			break
+		}
+
+		pair := strings.Split(line, "=")
+		k := pair[0]
+		v := pair[1]
+
+		v = strings.Trim(v, "\"")
+
+		osmap[k] = v
+	}
+
+	return osmap, true
+}
+
+func GetDist() Distro {
+	var detect string
+	var release string
+
+	version, freeBSDVersionExists := getFreeBSDVersion()
+	if freeBSDVersionExists {
+		return Distro{"FreeBSD", version, ""}
+	}
+
+	osmap, osMapExists := getOSRelease()
+
+	if osMapExists {
+		name := osmap["NAME"]
+		if name != "" {
+			detect = name
+		}
+
+		version := osmap["VERSION_ID"]
+		if version != "" {
+			release = version
+		}
+	}
+
+	return Distro{detect, release, ""}
+}

os_bsd.go

@@ -1,4 +1,4 @@
-//+build freebsd,openbsd,dragonfly,netbsd
+// +build openbsd,dragonfly,netbsd
 
 package osutil
 

os_freebsd.go

@@ -1,3 +1,19 @@
 package osutil
 
+import "fmt"
+
 const Name = "FreeBSD"
+
+func GetDisplay() string {
+	distro := GetDist()
+
+	if distro.Display != "" {
+		return fmt.Sprintf("%s %s", distro.Display, distro.Release)
+	}
+
+	return Name
+}
+
+func GetVersion() string {
+	return ""
+}