refactor: mdraid comments and organization

also hide serial / firmware in smart details if empty, remove a few
unnecessary ops, and add a few more passed state values

agent/file_utils.go

@@ -1,24 +0,0 @@
-package agent
-
-import (
-	"os"
-	"strings"
-)
-
-func readStringFile(path string) string {
-	content, _ := readStringFileOK(path)
-	return content
-}
-
-func readStringFileOK(path string) (string, bool) {
-	b, err := os.ReadFile(path)
-	if err != nil {
-		return "", false
-	}
-	return strings.TrimSpace(string(b)), true
-}
-
-func fileExists(path string) bool {
-	_, err := os.Stat(path)
-	return err == nil
-}

agent/fs_utils.go

@@ -0,0 +1,41 @@
+package agent
+
+import (
+	"os"
+	"strconv"
+	"strings"
+)
+
+// readStringFile returns trimmed file contents or empty string on error.
+func readStringFile(path string) string {
+	content, _ := readStringFileOK(path)
+	return content
+}
+
+// readStringFileOK returns trimmed file contents and read success.
+func readStringFileOK(path string) (string, bool) {
+	b, err := os.ReadFile(path)
+	if err != nil {
+		return "", false
+	}
+	return strings.TrimSpace(string(b)), true
+}
+
+// fileExists reports whether the given path exists.
+func fileExists(path string) bool {
+	_, err := os.Stat(path)
+	return err == nil
+}
+
+// readUintFile parses a decimal uint64 value from a file.
+func readUintFile(path string) (uint64, bool) {
+	raw, ok := readStringFileOK(path)
+	if !ok {
+		return 0, false
+	}
+	parsed, err := strconv.ParseUint(raw, 10, 64)
+	if err != nil {
+		return 0, false
+	}
+	return parsed, true
+}

agent/mdraid_linux.go

@@ -16,7 +16,6 @@ import (
 var mdraidSysfsRoot = "/sys"
 
 type mdraidHealth struct {
-	name          string
 	level         string
 	arrayState    string
 	degraded      uint64
@@ -28,6 +27,7 @@ type mdraidHealth struct {
 	capacity      uint64
 }
 
+// scanMdraidDevices discovers Linux md arrays exposed in sysfs.
 func scanMdraidDevices() []*DeviceInfo {
 	blockDir := filepath.Join(mdraidSysfsRoot, "block")
 	entries, err := os.ReadDir(blockDir)
@@ -58,6 +58,7 @@ func scanMdraidDevices() []*DeviceInfo {
 	return devices
 }
 
+// collectMdraidHealth reads mdraid health and stores it in SmartDataMap.
 func (sm *SmartManager) collectMdraidHealth(deviceInfo *DeviceInfo) (bool, error) {
 	if deviceInfo == nil || deviceInfo.Name == "" {
 		return false, nil
@@ -115,19 +116,16 @@ func (sm *SmartManager) collectMdraidHealth(deviceInfo *DeviceInfo) (bool, error
 	if health.level != "" {
 		data.ModelName = "Linux MD RAID (" + health.level + ")"
 	}
-	data.SerialNumber = ""
-	data.FirmwareVersion = ""
 	data.Capacity = health.capacity
-	data.Temperature = 0
 	data.SmartStatus = status
 	data.DiskName = filepath.Join("/dev", base)
 	data.DiskType = "mdraid"
 	data.Attributes = attrs
-	sm.SmartDataMap[key] = data
 
 	return true, nil
 }
 
+// readMdraidHealth reads md array health fields from sysfs.
 func readMdraidHealth(blockName string) (mdraidHealth, bool) {
 	var out mdraidHealth
 
@@ -141,7 +139,6 @@ func readMdraidHealth(blockName string) (mdraidHealth, bool) {
 		return out, false
 	}
 
-	out.name = blockName
 	out.arrayState = arrayState
 	out.level = readStringFile(filepath.Join(mdDir, "level"))
 	out.syncAction = readStringFile(filepath.Join(mdDir, "sync_action"))
@@ -165,6 +162,7 @@ func readMdraidHealth(blockName string) (mdraidHealth, bool) {
 	return out, true
 }
 
+// mdraidSmartStatus maps md state/sync signals to a SMART-like status.
 func mdraidSmartStatus(health mdraidHealth) string {
 	state := strings.ToLower(strings.TrimSpace(health.arrayState))
 	switch state {
@@ -174,18 +172,18 @@ func mdraidSmartStatus(health mdraidHealth) string {
 	if health.degraded > 0 {
 		return "FAILED"
 	}
-
 	switch strings.ToLower(strings.TrimSpace(health.syncAction)) {
 	case "resync", "recover", "reshape", "check", "repair":
 		return "WARNING"
 	}
-
-	if state == "clean" || state == "active" || state == "readonly" {
+	switch state {
+	case "clean", "active", "active-idle", "write-pending", "read-auto", "readonly":
 		return "PASSED"
 	}
 	return "UNKNOWN"
 }
 
+// isMdraidBlockName matches /dev/mdN-style block device names.
 func isMdraidBlockName(name string) bool {
 	if !strings.HasPrefix(name, "md") {
 		return false
@@ -202,18 +200,7 @@ func isMdraidBlockName(name string) bool {
 	return true
 }
 
-func readUintFile(path string) (uint64, bool) {
-	raw, ok := readStringFileOK(path)
-	if !ok {
-		return 0, false
-	}
-	parsed, err := strconv.ParseUint(strings.TrimSpace(raw), 10, 64)
-	if err != nil {
-		return 0, false
-	}
-	return parsed, true
-}
-
+// readMdraidBlockCapacityBytes converts block size metadata into bytes.
 func readMdraidBlockCapacityBytes(blockName, root string) (uint64, bool) {
 	sizePath := filepath.Join(root, "block", blockName, "size")
 	lbsPath := filepath.Join(root, "block", blockName, "queue", "logical_block_size")
@@ -222,15 +209,14 @@ func readMdraidBlockCapacityBytes(blockName, root string) (uint64, bool) {
 	if !ok {
 		return 0, false
 	}
-	sectors, err := strconv.ParseUint(strings.TrimSpace(sizeStr), 10, 64)
+	sectors, err := strconv.ParseUint(sizeStr, 10, 64)
 	if err != nil || sectors == 0 {
 		return 0, false
 	}
 
-	lbsStr, ok := readStringFileOK(lbsPath)
 	logicalBlockSize := uint64(512)
-	if ok {
-		if parsed, err := strconv.ParseUint(strings.TrimSpace(lbsStr), 10, 64); err == nil && parsed > 0 {
+	if lbsStr, ok := readStringFileOK(lbsPath); ok {
+		if parsed, err := strconv.ParseUint(lbsStr, 10, 64); err == nil && parsed > 0 {
 			logicalBlockSize = parsed
 		}
 	}

internal/site/src/components/routes/system/smart-table.tsx

@@ -621,8 +621,8 @@ function DiskSheet({
 	const deviceName = disk?.name || unknown
 	const model = disk?.model || unknown
 	const capacity = disk?.capacity ? formatCapacity(disk.capacity) : unknown
-	const serialNumber = disk?.serial || unknown
-	const firmwareVersion = disk?.firmware || unknown
+	const serialNumber = disk?.serial
+	const firmwareVersion = disk?.firmware
 	const status = disk?.state || unknown
 
 	return (
@@ -636,24 +636,32 @@ function DiskSheet({
 						{model}
 						<Separator orientation="vertical" className="h-2.5 bg-muted-foreground opacity-70" />
 						{capacity}
-						<Separator orientation="vertical" className="h-2.5 bg-muted-foreground opacity-70" />
-						<Tooltip>
-							<TooltipTrigger asChild>
-								<span>{serialNumber}</span>
-							</TooltipTrigger>
-							<TooltipContent>
-								<Trans>Serial Number</Trans>
-							</TooltipContent>
-						</Tooltip>
-						<Separator orientation="vertical" className="h-2.5 bg-muted-foreground opacity-70" />
-						<Tooltip>
-							<TooltipTrigger asChild>
-								<span>{firmwareVersion}</span>
-							</TooltipTrigger>
-							<TooltipContent>
-								<Trans>Firmware</Trans>
-							</TooltipContent>
-						</Tooltip>
+						{serialNumber && (
+							<>
+								<Separator orientation="vertical" className="h-2.5 bg-muted-foreground opacity-70" />
+								<Tooltip>
+									<TooltipTrigger asChild>
+										<span>{serialNumber}</span>
+									</TooltipTrigger>
+									<TooltipContent>
+										<Trans>Serial Number</Trans>
+									</TooltipContent>
+								</Tooltip>
+							</>
+						)}
+						{firmwareVersion && (
+							<>
+								<Separator orientation="vertical" className="h-2.5 bg-muted-foreground opacity-70" />
+								<Tooltip>
+									<TooltipTrigger asChild>
+										<span>{firmwareVersion}</span>
+									</TooltipTrigger>
+									<TooltipContent>
+										<Trans>Firmware</Trans>
+									</TooltipContent>
+								</Tooltip>
+							</>
+						)}
 					</SheetDescription>
 				</SheetHeader>
 				<div className="flex-1 overflow-hidden p-4 flex flex-col gap-4">