chore: import upstream snapshot with attribution

pkg/translations/translations.go

@@ -0,0 +1,79 @@
+package translations
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/spf13/viper"
+)
+
+type TranslationHelperFunc func(key string, defaultValue string) string
+
+func NullTranslationHelper(_ string, defaultValue string) string {
+	return defaultValue
+}
+
+func TranslationHelper() (TranslationHelperFunc, func()) {
+	var translationKeyMap = map[string]string{}
+	v := viper.New()
+
+	// Load from JSON file
+	v.SetConfigName("github-mcp-server-config")
+	v.SetConfigType("json")
+	v.AddConfigPath(".")
+
+	if err := v.ReadInConfig(); err != nil {
+		// ignore error if file not found as it is not required
+		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
+			log.Printf("Could not read JSON config: %v", err)
+		}
+	}
+
+	// create a function that takes both a key, and a default value and returns either the default value or an override value
+	return func(key string, defaultValue string) string {
+			key = strings.ToUpper(key)
+			if value, exists := translationKeyMap[key]; exists {
+				return value
+			}
+			// check if the env var exists
+			if value, exists := os.LookupEnv("GITHUB_MCP_" + key); exists {
+				// TODO I could not get Viper to play ball reading the env var
+				translationKeyMap[key] = value
+				return value
+			}
+
+			v.SetDefault(key, defaultValue)
+			translationKeyMap[key] = v.GetString(key)
+			return translationKeyMap[key]
+		}, func() {
+			// dump the translationKeyMap to a json file
+			if err := DumpTranslationKeyMap(translationKeyMap); err != nil {
+				log.Fatalf("Could not dump translation key map: %v", err)
+			}
+		}
+}
+
+// DumpTranslationKeyMap writes the translation map to a json file called github-mcp-server-config.json
+func DumpTranslationKeyMap(translationKeyMap map[string]string) error {
+	file, err := os.Create("github-mcp-server-config.json")
+	if err != nil {
+		return fmt.Errorf("error creating file: %v", err)
+	}
+	defer func() { _ = file.Close() }()
+
+	// marshal the map to json
+	jsonData, err := json.MarshalIndent(translationKeyMap, "", "  ")
+	if err != nil {
+		return fmt.Errorf("error marshaling map to JSON: %v", err)
+	}
+
+	// write the json data to the file
+	if _, err := file.Write(jsonData); err != nil {
+		return fmt.Errorf("error writing to file: %v", err)
+	}
+
+	return nil
+}