syslog filter could take several filters

internal/config/cli.go

@@ -14,7 +14,7 @@ func declareFlags(o *Config) {
 	flag.StringVar(&o.ARPTablePath, "arp-table-path", "/proc/net/arp", "Path to ARP table file")
 	flag.BoolVar(&o.SyslogEnabled, "syslog-enabled", false, "Enable syslog tailing for iwd messages")
 	flag.StringVar(&o.SyslogPath, "syslog-path", "/var/log/messages", "Path to syslog file")
-	flag.StringVar(&o.SyslogFilter, "syslog-filter", "daemon.info iwd:", "Filter string for syslog lines")
+	flag.Var(&StringArray{&o.SyslogFilter}, "daemon.info iwd:", "Filter string for syslog lines")
 	flag.StringVar(&o.SyslogSource, "syslog-source", "iwd", "Source name for syslog entries in logs")
 }
 

internal/config/config.go

@@ -9,16 +9,16 @@ import (
 )
 
 type Config struct {
-	Bind                 string
-	WifiInterface        string
-	WifiBackend          string
-	UseARPDiscovery      bool
-	DHCPLeasesPath       string
-	ARPTablePath         string
-	SyslogEnabled        bool
-	SyslogPath           string
-	SyslogFilter         string
-	SyslogSource         string
+	Bind            string
+	WifiInterface   string
+	WifiBackend     string
+	UseARPDiscovery bool
+	DHCPLeasesPath  string
+	ARPTablePath    string
+	SyslogEnabled   bool
+	SyslogPath      string
+	SyslogFilter    []string
+	SyslogSource    string
 }
 
 // ConsolidateConfig fills an Options struct by reading configuration from
@@ -35,7 +35,7 @@ func ConsolidateConfig() (opts *Config, err error) {
 		ARPTablePath:    "/proc/net/arp",
 		SyslogEnabled:   false,
 		SyslogPath:      "/var/log/messages",
-		SyslogFilter:    "daemon.info iwd:",
+		SyslogFilter:    []string{"daemon.info wpa_supplicant:", "daemon.info iwd:", "daemon.info hostapd:"},
 		SyslogSource:    "iwd",
 	}
 

internal/config/custom.go

@@ -1,9 +1,27 @@
 package config
 
 import (
+	"fmt"
 	"net/url"
 )
 
+// StringArray is a custom type for handling multiple string values in flags.
+type StringArray struct {
+	Array *[]string
+}
+
+// String returns a string representation of the StringArray.
+func (i *StringArray) String() string {
+	return fmt.Sprintf("%v", i.Array)
+}
+
+// Set appends a new string value to the StringArray.
+func (i *StringArray) Set(value string) error {
+	*i.Array = append(*i.Array, value)
+
+	return nil
+}
+
 type URL struct {
 	URL *url.URL
 }