Make the parsed configuration a global variable

This removes the need to pass the configuration struct to every
function.

1 files changed, 3 insertions, 4 deletions

diff --git a/config.go b/config.go
index 3bb153b..f63d284 100644
--- a/config.go
+++ b/config.go
@@ -7,6 +7,8 @@ import (
 	"log"
 )
 
+var config RuntimeConfig
+
 type RuntimeConfig struct {
 	Devices DevicesConfig
 	Web     WebConfig
@@ -22,7 +24,7 @@ type WebConfig struct {
 
 // parseConfig() parses and validates the runtime configuration file and
 // returns it as Go datastructure.
-func parseConfig(path string) RuntimeConfig {
+func parseConfig(path string) {
 	data, err := os.ReadFile(path)
 	if err != nil {
 		log.Fatalf("Could not read '%s'!", path)
@@ -32,11 +34,8 @@ func parseConfig(path string) RuntimeConfig {
 		log.Fatalf("%s contains invalid JSON!", path)
 	}
 
-	config := RuntimeConfig{}
 	err = json.Unmarshal(data, &config)
 	if err != nil {
 		log.Fatalf("Could not parse configuration file:\n%s\n", err)
 	}
-
-	return config
 }