Добавление логирования в файл

internal/config/config.go

@@ -22,6 +22,7 @@ type Config struct {
 	ReposBaseDir string            `toml:"reposBaseDir" env:"REPOS_BASE_DIR"`
 	Repositories map[string]GitRepo `toml:"repositories"`
 	Webhook      Webhook           `toml:"webhook" envPrefix:"WEBHOOK_"`
+	Logging      Logging           `toml:"logging" envPrefix:"LOGGING_"`
 }
 
 type GitRepo struct {
@@ -43,3 +44,9 @@ type Commit struct {
 type Webhook struct {
 	PasswordHash string `toml:"pwd_hash" env:"PASSWORD_HASH"`
 }
+
+type Logging struct {
+	LogFile     string `toml:"log_file" env:"LOG_FILE"`
+	MaxSize     int64  `toml:"max_size" env:"MAX_SIZE"`
+	EnableFile  bool   `toml:"enable_file" env:"ENABLE_FILE"`
+}

internal/logger/file_logger.go

@@ -0,0 +1,149 @@
+/*
+ * ALR Updater - Automated updater bot for ALR packages
+ * Copyright (C) 2025 The ALR Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package logger
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+)
+
+type RotatingFileWriter struct {
+	mu          sync.Mutex
+	file        *os.File
+	filename    string
+	maxSize     int64
+	currentSize int64
+}
+
+func NewRotatingFileWriter(filename string, maxSize int64) (*RotatingFileWriter, error) {
+	dir := filepath.Dir(filename)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return nil, fmt.Errorf("failed to create log directory: %w", err)
+	}
+
+	rfw := &RotatingFileWriter{
+		filename: filename,
+		maxSize:  maxSize,
+	}
+
+	if err := rfw.openFile(); err != nil {
+		return nil, err
+	}
+
+	return rfw, nil
+}
+
+func (rfw *RotatingFileWriter) openFile() error {
+	file, err := os.OpenFile(rfw.filename, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
+	if err != nil {
+		return fmt.Errorf("failed to open log file: %w", err)
+	}
+
+	info, err := file.Stat()
+	if err != nil {
+		file.Close()
+		return fmt.Errorf("failed to stat log file: %w", err)
+	}
+
+	rfw.file = file
+	rfw.currentSize = info.Size()
+	return nil
+}
+
+func (rfw *RotatingFileWriter) rotate() error {
+	if rfw.file != nil {
+		rfw.file.Close()
+	}
+
+	// Переименовываем текущий файл с временной меткой
+	backupName := fmt.Sprintf("%s.%s", rfw.filename, time.Now().Format("20060102-150405"))
+	if err := os.Rename(rfw.filename, backupName); err != nil && !os.IsNotExist(err) {
+		return fmt.Errorf("failed to rotate log file: %w", err)
+	}
+
+	// Создаем новый файл
+	if err := rfw.openFile(); err != nil {
+		return err
+	}
+
+	// Удаляем старые резервные копии (оставляем только последние 5)
+	pattern := rfw.filename + ".*"
+	matches, _ := filepath.Glob(pattern)
+	if len(matches) > 5 {
+		// Сортировка не требуется, так как имена файлов содержат временную метку
+		for i := 0; i < len(matches)-5; i++ {
+			os.Remove(matches[i])
+		}
+	}
+
+	return nil
+}
+
+func (rfw *RotatingFileWriter) Write(p []byte) (n int, err error) {
+	rfw.mu.Lock()
+	defer rfw.mu.Unlock()
+
+	// Проверяем, нужна ли ротация
+	if rfw.currentSize+int64(len(p)) > rfw.maxSize {
+		if err := rfw.rotate(); err != nil {
+			return 0, err
+		}
+	}
+
+	n, err = rfw.file.Write(p)
+	if err != nil {
+		return n, err
+	}
+
+	rfw.currentSize += int64(n)
+	return n, nil
+}
+
+func (rfw *RotatingFileWriter) Close() error {
+	rfw.mu.Lock()
+	defer rfw.mu.Unlock()
+
+	if rfw.file != nil {
+		return rfw.file.Close()
+	}
+	return nil
+}
+
+// MultiWriter объединяет вывод в несколько writers
+type MultiWriter struct {
+	writers []io.Writer
+}
+
+func NewMultiWriter(writers ...io.Writer) *MultiWriter {
+	return &MultiWriter{writers: writers}
+}
+
+func (mw *MultiWriter) Write(p []byte) (n int, err error) {
+	for _, w := range mw.writers {
+		n, err = w.Write(p)
+		if err != nil {
+			return
+		}
+	}
+	return len(p), nil
+}