Added PARTITION<n>_LABEL bash variable

main.go

@@ -193,6 +193,9 @@ func SetupFetchEnv() []string {
 		for i, part := range partitions {
 			env["PARTITION"+strconv.Itoa(i+1)+"_DEVICE"] = part.Device
 			env["PARTITION"+strconv.Itoa(i+1)+"_MOUNTPOINT"] = part.MountPoint
+			if part.Label != "" {
+				env["PARTITION"+strconv.Itoa(i+1)+"_LABEL"] = part.Label
+			}
 			env["PARTITION"+strconv.Itoa(i+1)+"_TOTAL_SIZE"] = FormatBytes(part.TotalSize)
 			env["PARTITION"+strconv.Itoa(i+1)+"_USED_SIZE"] = FormatBytes(part.UsedSize)
 			env["PARTITION"+strconv.Itoa(i+1)+"_FREE_SIZE"] = FormatBytes(part.FreeSize)

utils.go

@@ -323,23 +323,39 @@ func getMonitorResolution() []string {
 type partition struct {
 	Device     string
 	MountPoint string
+	Label      string
 	TotalSize  uint64
 	UsedSize   uint64
 	FreeSize   uint64
 }
 
 func getMountedPartitions() []partition {
-	entries, err := os.ReadDir("/dev/disk/by-partuuid")
+	partuuids, err := os.ReadDir("/dev/disk/by-partuuid")
 	if err != nil {
 		return nil
 	}
 
+	partlabels, err := os.ReadDir("/dev/disk/by-partlabel")
+	if err != nil {
+		return nil
+	}
+	labels := make(map[string]string)
+	for _, entry := range partlabels {
+		link, err := filepath.EvalSymlinks(filepath.Join("/dev/disk/by-partlabel/", entry.Name()))
+		if err != nil {
+			continue
+		}
+		labels[link] = entry.Name()
+	}
+
 	bytes, err := os.ReadFile("/proc/mounts")
 	if err != nil {
 		return nil
 	}
+
 	mountsRaw := strings.Split(string(bytes), "\n")
 	mounts := make(map[string]string)
+
 	for i := 0; i < len(mountsRaw); i++ {
 		split := strings.Split(mountsRaw[i], " ")
 		if len(split) <= 2 {
@@ -349,7 +365,7 @@ func getMountedPartitions() []partition {
 	}
 
 	var partitions []partition
-	for _, entry := range entries {
+	for _, entry := range partuuids {
 		link, err := filepath.EvalSymlinks(filepath.Join("/dev/disk/by-partuuid/", entry.Name()))
 		if err != nil {
 			continue
@@ -360,10 +376,14 @@ func getMountedPartitions() []partition {
 		p := partition{
 			link,
 			mounts[link],
+			"",
 			0,
 			0,
 			0,
 		}
+		if value, ok := labels[link]; ok {
+			p.Label = value
+		}
 		buf := new(syscall.Statfs_t)
 		err = syscall.Statfs(p.MountPoint, buf)
 		if err != nil {