feat(config): add support for per-repository configuration overrides

README.md

@@ -12,7 +12,7 @@ AI-powered Git commit message generator that analyzes your staged changes and ou
 - Generates configurable number of commit message suggestions from your staged diff
 -  Generates 10 pull request titles based on the diff between the current branch and a target branch
 - Providers: GitHub Copilot (default), OpenAI, Anthropic (Claude Code CLI)
-- Multi-language support: English and Spanish
+- Multi-language support: Any language (English, Arabic, Korean, etc.)
 - Interactive config to pick provider/model/language and set keys
 - Simple output suitable for piping into TUI menus (one message per line)
 
@@ -81,7 +81,6 @@ Contains API keys, tokens, and provider-specific settings. **Do not share this f
 
 ```yaml
 active_provider: copilot # default if a GitHub token is found
-language: en # commit message language: "en" (English) or "es" (Spanish)
 providers:
   copilot:
     api_key: "$GITHUB_TOKEN"   # Uses GitHub token; token is exchanged internally
@@ -94,29 +93,33 @@ providers:
   anthropic:
     model: "claude-haiku-4-5"  # Uses Claude Code CLI - no API key needed
     num_suggestions: 10        # Number of commit suggestions to generate
-  # Custom provider example (e.g., local Ollama):
-  # local:
-  #   api_key: "not-needed"
-  #   model: "llama3.1:8b"
-  #   endpoint_url: "http://localhost:11434/v1"
 ```
 
-#### Anthropic Provider (Claude Code CLI)
+> [!NOTE]
+> `.lazycommit.yaml: language` is removed and please use `.lazycommit.prompts.yaml` instead.
 
-The Anthropic provider integrates with your local [Claude Code CLI](https://github.com/anthropics/claude-code) installation:
+### 2. Prompt Configuration (`~/.config/.lazycommit.prompts.yaml`)
+Contains prompt templates and message configurations. **Safe to share in dotfiles and Git.**
+
+```yaml
+language: English # commit message language (e.g., "English", "Arabic", "Korean")
+system_message: "You are a helpful assistant that generates git commit messages, and pull request titles."
+commit_message_template: "Based on the following git diff, generate 10 conventional commit messages. Each message should be on a new line, without any numbering or bullet points:\n\n%s"
+pr_title_template: "Based on the following git diff, generate 10 pull request title suggestions. Each title should be on a new line, without any numbering or bullet points:\n\n%s"
+```
 
-- **No API key required**: Uses your existing Claude Code authentication
-- **Fast and cost-effective**: Leverages Claude Haiku model
-- **Configurable**: Set custom number of suggestions per provider
+### Per-Repository Configuration
 
-Requirements:
-- Claude Code CLI installed and authenticated
-- Command `claude` available in PATH
+You can override the prompt configuration on a per-repository basis by creating a `.lazycommit.prompts.yaml` file in the root of your git repository. This is useful for projects that require different languages or commit message formats.
 
-### 2. Prompt Configuration (`~/.config/.lazycommit.prompts.yaml`)
-Contains prompt templates and message configurations. **Safe to share in dotfiles and Git.**
+If a field is missing in your repository-local configuration, the value from the global configuration will be used.
 
-This file is automatically created on first run with sensible defaults:
+Example `.lazycommit.prompts.yaml` for a Korean project:
+```yaml
+language: Korean
+commit_message_template: "Based on the following git diff, generate 5 conventional commit messages:\n\n%s"
+```
+This file is automatically created on first run in the global config directory with sensible defaults:
 
 ```yaml
 system_message: "You are a helpful assistant that generates git commit messages, and pull request titles."
@@ -158,12 +161,14 @@ providers:
 
 ### Language Configuration
 
-lazycommit supports generating commit messages in different languages. Set the `language` field in your config:
+lazycommit supports generating commit messages in any language. Set the `language` field in your prompt config (`.lazycommit.prompts.yaml`):
 
 ```yaml
-language: es  # Spanish
+language: Spanish
+# or
+language: Arabic
 # or
-language: en  # English (default)
+language: English  # (default)
 ```
 
 You can also configure it interactively:
@@ -174,10 +179,6 @@ lazycommit config set  # Select language in the interactive menu
 
 The language setting automatically instructs the AI to generate commit messages in the specified language, regardless of the provider used.
 
-**Supported languages:**
-- `en` - English (default)
-- `es` - Spanish (Español)
-
 ## Integration with TUI Git clients
 
 Because `lazycommit commit` prints plain lines, it plugs nicely into menu UIs.

cmd/config.go

@@ -103,14 +103,19 @@ func runInteractiveConfig() {
 
 	// Language configuration
 	currentLanguage := config.GetLanguage()
+	languageOptions := []string{"English", "Spanish", "Other..."}
 	languagePrompt := &survey.Select{
 		Message: "Choose a language for commit messages:",
-		Options: []string{"English (en)", "Español (es)"},
+		Options: languageOptions,
 		Default: func() string {
-			if currentLanguage == "es" {
-				return "Español (es)"
+			switch currentLanguage {
+			case "Spanish":
+				return "Spanish"
+			case "English":
+				return "English"
+			default:
+				return "Other..."
 			}
-			return "English (en)"
 		}(),
 	}
 	var selectedLanguage string
@@ -120,19 +125,31 @@ func runInteractiveConfig() {
 		return
 	}
 
-	// Extract language code from selection
-	langCode := "en"
-	if selectedLanguage == "Español (es)" {
-		langCode = "es"
+	var langValue string
+	switch selectedLanguage {
+	case "Spanish":
+		langValue = "Spanish"
+	case "English":
+		langValue = "English"
+	case "Other...":
+		otherPrompt := &survey.Input{
+			Message: "Enter language name (e.g., 'Arabic', 'Korean', 'French'):",
+			Default: currentLanguage,
+		}
+		err = survey.AskOne(otherPrompt, &langValue)
+		if err != nil {
+			fmt.Println(err.Error())
+			return
+		}
 	}
 
-	if langCode != currentLanguage {
-		err := config.SetLanguage(langCode)
+	if langValue != "" && langValue != currentLanguage {
+		err := config.SetLanguage(langValue)
 		if err != nil {
 			fmt.Printf("Error setting language: %v\n", err)
 			return
 		}
-		fmt.Printf("Language set to: %s\n", langCode)
+		fmt.Printf("Language set to: %s\n", langValue)
 	}
 
 	// API key configuration - skip for copilot and anthropic

internal/config/config.go

@@ -23,7 +23,6 @@ type ProviderConfig struct {
 type Config struct {
 	Providers      map[string]ProviderConfig `mapstructure:"providers"`
 	ActiveProvider string                    `mapstructure:"active_provider"`
-	Language       string                    `mapstructure:"language"`
 }
 
 var cfg *Config
@@ -32,6 +31,7 @@ func InitConfig() {
 	viper.SetConfigName(".lazycommit")
 	viper.SetConfigType("yaml")
 	viper.AddConfigPath(getConfigDir())
+
 	viper.SetConfigFile(filepath.Join(getConfigDir(), ".lazycommit.yaml"))
 
 	if token, err := LoadGitHubToken(); err == nil && token != "" {
@@ -43,13 +43,8 @@ func InitConfig() {
 		viper.SetDefault("providers.openai.model", "openai/gpt-5-mini")
 	}
 
-	// Set defaults for anthropic provider
 	viper.SetDefault("providers.anthropic.model", "claude-haiku-4-5")
 	viper.SetDefault("providers.anthropic.num_suggestions", 10)
-
-	// Set default language
-	viper.SetDefault("language", "en")
-
 	viper.AutomaticEnv()
 
 	if err := viper.ReadInConfig(); err != nil {
@@ -73,7 +68,6 @@ func InitConfig() {
 		os.Exit(1)
 	}
 
-	// Initialize prompt configuration
 	InitPromptConfig()
 }
 
@@ -290,25 +284,6 @@ func SetNumSuggestions(provider, numSuggestions string) error {
 	return viper.WriteConfig()
 }
 
-func GetLanguage() string {
-	if cfg == nil {
-		InitConfig()
-	}
-	if cfg.Language == "" {
-		return "en" // Default to English
-	}
-	return cfg.Language
-}
-
-func SetLanguage(language string) error {
-	if cfg == nil {
-		InitConfig()
-	}
-	cfg.Language = language
-	viper.Set("language", language)
-	return viper.WriteConfig()
-}
-
 func getConfigDir() string {
 	if xdgConfig := os.Getenv("XDG_CONFIG_HOME"); xdgConfig != "" {
 		return xdgConfig