db config: don't exit setup if can't detect fs, improve detection for freebsd (#2963)

pkg/csconfig/database.go

@@ -76,26 +76,24 @@ func (c *Config) LoadDBConfig(inCli bool) error {
 		if c.DbConfig.UseWal == nil {
 			dbDir := filepath.Dir(c.DbConfig.DbPath)
 			isNetwork, fsType, err := types.IsNetworkFS(dbDir)
-			if err != nil {
+			switch {
+			case err != nil:
 				log.Warnf("unable to determine if database is on network filesystem: %s", err)
 				log.Warning("You are using sqlite without WAL, this can have a performance impact. If you do not store the database in a network share, set db_config.use_wal to true. Set explicitly to false to disable this warning.")
-				return nil
-			}
-			if isNetwork {
+			case isNetwork:
 				log.Debugf("database is on network filesystem (%s), setting useWal to false", fsType)
 				c.DbConfig.UseWal = ptr.Of(false)
-			} else {
+			default:
 				log.Debugf("database is on local filesystem (%s), setting useWal to true", fsType)
 				c.DbConfig.UseWal = ptr.Of(true)
 			}
 		} else if *c.DbConfig.UseWal {
 			dbDir := filepath.Dir(c.DbConfig.DbPath)
 			isNetwork, fsType, err := types.IsNetworkFS(dbDir)
-			if err != nil {
+			switch {
+			case err != nil:
 				log.Warnf("unable to determine if database is on network filesystem: %s", err)
-				return nil
-			}
-			if isNetwork {
+			case isNetwork:
 				log.Warnf("database seems to be stored on a network share (%s), but useWal is set to true. Proceed at your own risk.", fsType)
 			}
 		}

pkg/types/getfstype.go

@@ -1,4 +1,4 @@
-//go:build !windows
+//go:build !windows && !freebsd
 
 package types
 

pkg/types/getfstype_freebsd.go

@@ -0,0 +1,25 @@
+//go:build freebsd
+
+package types
+
+import (
+    "fmt"
+    "syscall"
+)
+
+func GetFSType(path string) (string, error) {
+	var fsStat syscall.Statfs_t
+
+	if err := syscall.Statfs(path, &fsStat); err != nil {
+		return "", fmt.Errorf("failed to get filesystem type: %w", err)
+	}
+
+	bs := fsStat.Fstypename
+
+	b := make([]byte, len(bs))
+	for i, v := range bs {
+		b[i] = byte(v)
+	}
+
+	return string(b), nil
+}