Update config handling

- Stop using pointers where unnecessary
- Removed default system prompt
- Set indent level to 2 when writing config
- Update ordering of config struct, which affects marshalling
- Make provider `name` optional, defaulting to the provider's `kind`

pkg/cmd/cmd.go

@@ -57,7 +57,7 @@ func applyGenerationFlags(ctx *lmcli.Context, cmd *cobra.Command) {
 	f.Float32VarP(ctx.Config.Defaults.Temperature, "temperature", "t", *ctx.Config.Defaults.Temperature, "Sampling temperature")
 
 	// --system-prompt
-	f.StringVar(ctx.Config.Defaults.SystemPrompt, "system-prompt", *ctx.Config.Defaults.SystemPrompt, "System prompt")
+	f.StringVar(&ctx.Config.Defaults.SystemPrompt, "system-prompt", ctx.Config.Defaults.SystemPrompt, "System prompt")
 	// --system-prompt-file
 	f.StringVar(&ctx.Config.Defaults.SystemPromptFile, "system-prompt-file", ctx.Config.Defaults.SystemPromptFile, "A path to a file containing the system prompt")
 	cmd.MarkFlagsMutuallyExclusive("system-prompt", "system-prompt-file")

pkg/lmcli/config.go

@@ -10,29 +10,29 @@ import (
 
 type Config struct {
 	Defaults *struct {
-		SystemPromptFile string   `yaml:"systemPromptFile,omitempty"`
+		Model            *string  `yaml:"model" default:"gpt-4"`
-		SystemPrompt     *string  `yaml:"systemPrompt" default:"You are a helpful assistant."`
 		MaxTokens        *int     `yaml:"maxTokens" default:"256"`
 		Temperature      *float32 `yaml:"temperature" default:"0.2"`
-		Model            *string  `yaml:"model" default:"gpt-4"`
+		SystemPrompt     string   `yaml:"systemPrompt,omitempty"`
+		SystemPromptFile string   `yaml:"systemPromptFile,omitempty"`
 	} `yaml:"defaults"`
 	Conversations *struct {
 		TitleGenerationModel *string `yaml:"titleGenerationModel" default:"gpt-3.5-turbo"`
 	} `yaml:"conversations"`
-	Tools *struct {
-		EnabledTools []string `yaml:"enabledTools"`
-	} `yaml:"tools"`
-	Providers []*struct {
-		Name    *string   `yaml:"name,omitempty"`
-		Kind    *string   `yaml:"kind"`
-		BaseURL *string   `yaml:"baseUrl,omitempty"`
-		APIKey  *string   `yaml:"apiKey,omitempty"`
-		Models  *[]string `yaml:"models"`
-	} `yaml:"providers"`
 	Chroma *struct {
 		Style     *string `yaml:"style" default:"onedark"`
 		Formatter *string `yaml:"formatter" default:"terminal16m"`
 	} `yaml:"chroma"`
+	Tools *struct {
+		EnabledTools []string `yaml:"enabledTools"`
+	} `yaml:"tools"`
+	Providers []*struct {
+		Name    string   `yaml:"name,omitempty"`
+		Kind    string   `yaml:"kind"`
+		BaseURL string   `yaml:"baseUrl,omitempty"`
+		APIKey  string   `yaml:"apiKey,omitempty"`
+		Models  []string `yaml:"models"`
+	} `yaml:"providers"`
 }
 
 func NewConfig(configFile string) (*Config, error) {
@@ -60,8 +60,9 @@ func NewConfig(configFile string) (*Config, error) {
 		if err != nil {
 			return nil, fmt.Errorf("Could not open config file for writing: %v", err)
 		}
-		bytes, _ := yaml.Marshal(c)
+		encoder := yaml.NewEncoder(file)
-		_, err = file.Write(bytes)
+		encoder.SetIndent(2)
+		err = encoder.Encode(c)
 		if err != nil {
 			return nil, fmt.Errorf("Could not save default configuration: %v", err)
 		}
@@ -78,8 +79,5 @@ func (c *Config) GetSystemPrompt() string {
 		}
 		return content
 	}
-	if c.Defaults.SystemPrompt == nil {
+	return c.Defaults.SystemPrompt
-		return ""
-	}
-	return *c.Defaults.SystemPrompt
 }

pkg/lmcli/lmcli.go

@@ -18,7 +18,8 @@ import (
 )
 
 type Context struct {
-	Config *Config // may be updated at runtime
+	// high level app configuration, may be mutated at runtime
+	Config Config
 	Store  ConversationStore
 
 	Chroma       *tty.ChromaHighlighter
@@ -54,15 +55,20 @@ func NewContext() (*Context, error) {
 		}
 	}
 
-	return &Context{config, store, chroma, enabledTools}, nil
+	return &Context{*config, store, chroma, enabledTools}, nil
 }
 
 func (c *Context) GetModels() (models []string) {
 	modelCounts := make(map[string]int)
 	for _, p := range c.Config.Providers {
-		for _, m := range *p.Models {
+		name := p.Kind
+		if p.Name != "" {
+			name = p.Name
+		}
+
+		for _, m := range p.Models {
 			modelCounts[m]++
-			models = append(models, fmt.Sprintf("%s@%s", m, *p.Name))
+			models = append(models, fmt.Sprintf("%s@%s", m, name))
 		}
 	}
 
@@ -85,50 +91,55 @@ func (c *Context) GetModelProvider(model string) (string, api.ChatCompletionProv
 	}
 
 	for _, p := range c.Config.Providers {
-		if provider != "" && *p.Name != provider {
+		name := p.Kind
+		if p.Name != "" {
+			name = p.Name
+		}
+
+		if provider != "" && name != provider {
 			continue
 		}
 
-		for _, m := range *p.Models {
+		for _, m := range p.Models {
 			if m == model {
-				switch *p.Kind {
+				switch p.Kind {
 				case "anthropic":
 					url := "https://api.anthropic.com"
-					if p.BaseURL != nil {
+					if p.BaseURL != "" {
-						url = *p.BaseURL
+						url = p.BaseURL
 					}
 					return model, &anthropic.AnthropicClient{
 						BaseURL: url,
-						APIKey:  *p.APIKey,
+						APIKey:  p.APIKey,
 					}, nil
 				case "google":
 					url := "https://generativelanguage.googleapis.com"
-					if p.BaseURL != nil {
+					if p.BaseURL != "" {
-						url = *p.BaseURL
+						url = p.BaseURL
 					}
 					return model, &google.Client{
 						BaseURL: url,
-						APIKey:  *p.APIKey,
+						APIKey:  p.APIKey,
 					}, nil
 				case "ollama":
 					url := "http://localhost:11434/api"
-					if p.BaseURL != nil {
+					if p.BaseURL != "" {
-						url = *p.BaseURL
+						url = p.BaseURL
 					}
 					return model, &ollama.OllamaClient{
 						BaseURL: url,
 					}, nil
 				case "openai":
 					url := "https://api.openai.com"
-					if p.BaseURL != nil {
+					if p.BaseURL != "" {
-						url = *p.BaseURL
+						url = p.BaseURL
 					}
 					return model, &openai.OpenAIClient{
 						BaseURL: url,
-						APIKey:  *p.APIKey,
+						APIKey:  p.APIKey,
 					}, nil
 				default:
-					return "", nil, fmt.Errorf("unknown provider kind: %s", *p.Kind)
+					return "", nil, fmt.Errorf("unknown provider kind: %s", p.Kind)
 				}
 			}
 		}