Refactor for better modularity (share more code among edit functions, rename "offline" package to "backend"

src/backend/configParser.go

@@ -0,0 +1,46 @@
+package backend
+
+import (
+	"fmt"
+	"gopkg.in/ini.v1"
+	"os"
+)
+
+// ReadConfig reads the libmutton.ini file and returns a map of the requested values
+// requires readMap: a map of section names to key names (indicates requested values)
+// returns configMap: a map of key names to values (sections are irrelevant)
+func ReadConfig(readKeys []string) []string {
+	cfg, err := ini.Load(ConfigPath)
+	if err != nil {
+		fmt.Println(AnsiError + "Failed to load libmutton.ini" + AnsiReset)
+		os.Exit(1)
+	}
+
+	var config []string
+
+	for _, key := range readKeys {
+		keyConfig := cfg.Section("LIBMUTTON").Key(key).String()
+
+		// ensure specified key has a value
+		if keyConfig == "" {
+			fmt.Println(AnsiError + "Failed to find value for key \"" + key + "\" in section \"[LIBMUTTON]\" in libmutton.ini" + AnsiReset)
+			os.Exit(1)
+		}
+
+		config = append(config, keyConfig)
+	}
+
+	return config
+}
+
+// libmuttn.ini layout
+// [LIBMUTTON]
+// gpgID = <gpg key id>
+// textEditor = <editor command>
+// onlineMode = <true/false>
+// sshError = <true/false>
+// netPinEnabled = <true/false>
+// remoteUser = <ssh user>
+// remoteIP = <ssh ip>
+// remotePort = <ssh port>
+// identityFile = <path to private key>