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package appconfig
import (
"encoding/json"
"log"
"os"
"path/filepath"
"strings"
)
// App holds user-configurable settings read from ~/.config/hexai/config.json.
type App struct {
MaxTokens int `json:"max_tokens"`
ContextMode string `json:"context_mode"`
ContextWindowLines int `json:"context_window_lines"`
MaxContextTokens int `json:"max_context_tokens"`
LogPreviewLimit int `json:"log_preview_limit"`
NoDiskIO bool `json:"no_disk_io"`
TriggerCharacters []string `json:"trigger_characters"`
Provider string `json:"provider"`
// Provider-specific options
OpenAIBaseURL string `json:"openai_base_url"`
OpenAIModel string `json:"openai_model"`
OllamaBaseURL string `json:"ollama_base_url"`
OllamaModel string `json:"ollama_model"`
CopilotBaseURL string `json:"copilot_base_url"`
CopilotModel string `json:"copilot_model"`
}
// Load reads configuration from ~/.config/hexai/config.json and merges with defaults.
func Load(logger *log.Logger) App {
cfg := App{
MaxTokens: 4000,
ContextMode: "always-full",
ContextWindowLines: 120,
MaxContextTokens: 4000,
LogPreviewLimit: 100,
NoDiskIO: true,
}
home, err := os.UserHomeDir()
if err != nil {
return cfg
}
path := filepath.Join(home, ".config", "hexai", "config.json")
f, err := os.Open(path)
if err != nil {
return cfg
}
defer f.Close()
dec := json.NewDecoder(f)
var fileCfg App
if err := dec.Decode(&fileCfg); err != nil {
if logger != nil {
logger.Printf("invalid config file %s: %v", path, err)
}
return cfg
}
// Merge: file overrides defaults when provided
if fileCfg.MaxTokens > 0 {
cfg.MaxTokens = fileCfg.MaxTokens
}
if strings.TrimSpace(fileCfg.ContextMode) != "" {
cfg.ContextMode = fileCfg.ContextMode
}
if fileCfg.ContextWindowLines > 0 {
cfg.ContextWindowLines = fileCfg.ContextWindowLines
}
if fileCfg.MaxContextTokens > 0 {
cfg.MaxContextTokens = fileCfg.MaxContextTokens
}
if fileCfg.LogPreviewLimit >= 0 {
cfg.LogPreviewLimit = fileCfg.LogPreviewLimit
}
cfg.NoDiskIO = fileCfg.NoDiskIO
if len(fileCfg.TriggerCharacters) > 0 {
cfg.TriggerCharacters = append([]string{}, fileCfg.TriggerCharacters...)
}
if strings.TrimSpace(fileCfg.Provider) != "" {
cfg.Provider = fileCfg.Provider
}
// Provider-specific options
if strings.TrimSpace(fileCfg.OpenAIBaseURL) != "" {
cfg.OpenAIBaseURL = fileCfg.OpenAIBaseURL
}
if strings.TrimSpace(fileCfg.OpenAIModel) != "" {
cfg.OpenAIModel = fileCfg.OpenAIModel
}
if strings.TrimSpace(fileCfg.OllamaBaseURL) != "" {
cfg.OllamaBaseURL = fileCfg.OllamaBaseURL
}
if strings.TrimSpace(fileCfg.OllamaModel) != "" {
cfg.OllamaModel = fileCfg.OllamaModel
}
if strings.TrimSpace(fileCfg.CopilotBaseURL) != "" {
cfg.CopilotBaseURL = fileCfg.CopilotBaseURL
}
if strings.TrimSpace(fileCfg.CopilotModel) != "" {
cfg.CopilotModel = fileCfg.CopilotModel
}
return cfg
}
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