Add support for FreeBSD

.goreleaser.yml

@@ -9,6 +9,7 @@ builds:
     ldflags: -s -w -X main.Version={{ .Version }} -X main.CommitSHA={{ .Commit }}
     goos:
       - linux
+      - freebsd
     goarch:
       - amd64
       - arm64

README.md

@@ -5,7 +5,7 @@
 [![Go ReportCard](http://goreportcard.com/badge/muesli/duf)](http://goreportcard.com/report/muesli/duf)
 [![GoDoc](https://godoc.org/github.com/golang/gddo?status.svg)](https://pkg.go.dev/github.com/muesli/duf)
 
-Disk Usage/Free Utility (currently Linux & macOS-only, support for BSDs soon)
+Disk Usage/Free Utility (Linux, FreeBSD & macOS)
 
 ![duf](/duf.png)
 

filesystems_freebsd.go

@@ -0,0 +1,22 @@
+// +build freebsd
+
+package main
+
+func isLocalFs(m Mount) bool {
+	//FIXME: implement
+	return false
+}
+
+func isFuseFs(m Mount) bool {
+	//FIXME: implement
+	return false
+}
+
+func isNetworkFs(m Mount) bool {
+	//FIXME: implement
+	return false
+}
+
+func isSpecialFs(m Mount) bool {
+	return m.Fstype == "devfs"
+}

mounts_freebsd.go

@@ -0,0 +1,124 @@
+// +build freebsd
+
+package main
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+func mounts() ([]Mount, []string, error) {
+	var ret []Mount
+	var warnings []string
+
+	count, err := unix.Getfsstat(nil, unix.MNT_WAIT)
+	if err != nil {
+		return nil, nil, err
+	}
+	fs := make([]unix.Statfs_t, count)
+	if _, err = unix.Getfsstat(fs, unix.MNT_WAIT); err != nil {
+		return nil, nil, err
+	}
+
+	for _, stat := range fs {
+		opts := "rw"
+		if stat.Flags&unix.MNT_RDONLY != 0 {
+			opts = "ro"
+		}
+		if stat.Flags&unix.MNT_SYNCHRONOUS != 0 {
+			opts += ",sync"
+		}
+		if stat.Flags&unix.MNT_NOEXEC != 0 {
+			opts += ",noexec"
+		}
+		if stat.Flags&unix.MNT_NOSUID != 0 {
+			opts += ",nosuid"
+		}
+		if stat.Flags&unix.MNT_UNION != 0 {
+			opts += ",union"
+		}
+		if stat.Flags&unix.MNT_ASYNC != 0 {
+			opts += ",async"
+		}
+		if stat.Flags&unix.MNT_SUIDDIR != 0 {
+			opts += ",suiddir"
+		}
+		if stat.Flags&unix.MNT_SOFTDEP != 0 {
+			opts += ",softdep"
+		}
+		if stat.Flags&unix.MNT_NOSYMFOLLOW != 0 {
+			opts += ",nosymfollow"
+		}
+		if stat.Flags&unix.MNT_GJOURNAL != 0 {
+			opts += ",gjournal"
+		}
+		if stat.Flags&unix.MNT_MULTILABEL != 0 {
+			opts += ",multilabel"
+		}
+		if stat.Flags&unix.MNT_ACLS != 0 {
+			opts += ",acls"
+		}
+		if stat.Flags&unix.MNT_NOATIME != 0 {
+			opts += ",noatime"
+		}
+		if stat.Flags&unix.MNT_NOCLUSTERR != 0 {
+			opts += ",noclusterr"
+		}
+		if stat.Flags&unix.MNT_NOCLUSTERW != 0 {
+			opts += ",noclusterw"
+		}
+		if stat.Flags&unix.MNT_NFS4ACLS != 0 {
+			opts += ",nfsv4acls"
+		}
+
+		device := byteToString(stat.Mntfromname[:])
+		mountPoint := byteToString(stat.Mntonname[:])
+		fsType := byteToString(stat.Fstypename[:])
+
+		if len(device) == 0 {
+			continue
+		}
+
+		d := Mount{
+			Device:     device,
+			Mountpoint: mountPoint,
+			Fstype:     fsType,
+			Type:       fsType,
+			Opts:       opts,
+			Stat:       stat,
+			Total:      (uint64(stat.Blocks) * uint64(stat.Bsize)),
+			Free:       (uint64(stat.Bavail) * uint64(stat.Bsize)),
+			Used:       (uint64(stat.Blocks) - uint64(stat.Bfree)) * uint64(stat.Bsize),
+			Inodes:     stat.Files,
+			InodesFree: uint64(stat.Ffree),
+			InodesUsed: stat.Files - uint64(stat.Ffree),
+		}
+		d.DeviceType = deviceType(d)
+
+		ret = append(ret, d)
+	}
+
+	return ret, warnings, nil
+}
+
+func byteToString(orig []byte) string {
+	n := -1
+	l := -1
+	for i, b := range orig {
+		// skip left side null
+		if l == -1 && b == 0 {
+			continue
+		}
+		if l == -1 {
+			l = i
+		}
+
+		if b == 0 {
+			break
+		}
+		n = i + 1
+	}
+	if n == -1 {
+		return string(orig)
+	}
+	return string(orig[l:n])
+}