Daemon remembers the config path if started with --config flag

README.md

@@ -31,7 +31,7 @@ Alongside this project, I am developing a seperate web-based dashboard that can
 
 - [ ] Configuration
     - [x] Custom configuration path (passed to the daemon with a flag `--config`)
-        - [ ] Daemon instance remembers config path (*so you don't have to pass `--config` everytime you run an ipc command*)
+        - [x] Daemon instance remembers config path (*so you don't have to pass `--config` everytime you run an ipc command*)
     - [ ] Daemon listen port (kind of implemented, could be cleaner)
     - [x] Declarative Server configuration (Create servers in config)
         - [ ] More configuration options

main.go

@@ -34,11 +34,30 @@ func main() {
 		return
 	}
 
+	configExplicitlySet := false
+	flag.Visit(func(f *flag.Flag) {
+		if f.Name == "config" {
+			configExplicitlySet = true
+		}
+	})
+
+	if !configExplicitlySet {
+		if envConfig := os.Getenv("VSSM_CONFIG_PATH"); envConfig != "" {
+			configFlag = &envConfig
+		}
+	}
+
 	absConfigPath, err := filepath.Abs(*configFlag)
 	if err != nil {
 		log.Fatalf("Failed to resolve absolute configuration path target: %v", err)
 	}
 
+	if configExplicitlySet {
+		if err := os.Setenv("VSSM_CONFIG_PATH", absConfigPath); err != nil {
+			log.Fatalf("Warning: could not set VSSM_CONFIG_PATH: %v", err)
+		}
+	}
+
 	cfg, err := LoadOrCreateConfig(absConfigPath)
 	if err != nil {
 		log.Fatalf("Initialization failed: %v", err)