Configure database logging to file

pkg/lmcli/lmcli.go

@@ -1,10 +1,14 @@
 package lmcli
 
 import (
+	"errors"
 	"fmt"
+	"io/fs"
+	"log"
 	"os"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"git.mlow.ca/mlow/lmcli/pkg/agents"
 	"git.mlow.ca/mlow/lmcli/pkg/api"
@@ -16,6 +20,7 @@ import (
 	"git.mlow.ca/mlow/lmcli/pkg/util/tty"
 	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
 )
 
 type Agent struct {
@@ -38,9 +43,45 @@ func NewContext() (*Context, error) {
 		return nil, err
 	}
 
+	store, err := getConversationStore()
+	if err != nil {
+		return nil, err
+	}
+
+	chroma := tty.NewChromaHighlighter("markdown", *config.Chroma.Formatter, *config.Chroma.Style)
+	return &Context{*config, store, chroma}, nil
+}
+
+func createOrOpenAppend(path string) (*os.File, error) {
+	var file *os.File
+	if _, err := os.Stat(path); errors.Is(err, os.ErrNotExist) {
+		file, err = os.Create(path)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		file, err = os.OpenFile(path, os.O_APPEND, fs.ModeAppend)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return file, nil
+}
+
+func getConversationStore() (ConversationStore, error) {
 	databaseFile := filepath.Join(dataDir(), "conversations.db")
+
+	gormLogFile, err := createOrOpenAppend(filepath.Join(dataDir(), "database.log"))
+	if err != nil {
+		return nil, fmt.Errorf("Could not open database log file: %v", err)
+	}
 	db, err := gorm.Open(sqlite.Open(databaseFile), &gorm.Config{
-		//Logger: logger.Default.LogMode(logger.Info),
+		Logger: logger.New(log.New(gormLogFile, "", log.LstdFlags), logger.Config{
+			SlowThreshold:             200 * time.Millisecond,
+			LogLevel:                  logger.Warn,
+			IgnoreRecordNotFoundError: false,
+			Colorful:                  true,
+		}),
 	})
 	if err != nil {
 		return nil, fmt.Errorf("Error establishing connection to store: %v", err)
@@ -49,10 +90,7 @@ func NewContext() (*Context, error) {
 	if err != nil {
 		return nil, err
 	}
-
-	chroma := tty.NewChromaHighlighter("markdown", *config.Chroma.Formatter, *config.Chroma.Style)
-
-	return &Context{*config, store, chroma}, nil
+	return store, nil
 }
 
 func (c *Context) GetModels() (models []string) {