admin-entrance/server/package/graveserver/leafstalk/otherutils/file/file.go

package file

import (
	"os"
	"path/filepath"
	"sort"
)

// 搜索匹配文件，删除字典顺序排名靠前的文件
// fmt.Sprintf("dumpTo%s.*.txt", name)
func RemoveMatchedFiles(pattern string) error {
	// 使用filepath.Glob匹配文件
	matches, err := filepath.Glob(pattern)
	if err != nil {
		return err
	}

	// 遍历匹配到的文件路径
	var toUnlink []string
	var zeroFiles []string
	for _, path := range matches {
		// fi, err := os.Stat(path)
		// if err != nil {
		// 	continue
		// }

		fl, err := os.Lstat(path)
		if err != nil {
			continue
		}

		if fl.Mode()&os.ModeSymlink == os.ModeSymlink {
			continue
		}
		if fl.Size() == 0 {
			zeroFiles = append(zeroFiles, path)
		} else {
			toUnlink = append(toUnlink, path)
		}
	}

	sort.Strings(toUnlink)

	for _, path := range zeroFiles {
		os.Remove(path)
	}

	rotationCount := 7
	if rotationCount >= len(toUnlink) {
		return nil
	}

	toUnlink = toUnlink[:len(toUnlink)-int(rotationCount)]

	// 尝试删除文件
	for _, path := range toUnlink {
		os.Remove(path)
	}
	return nil
}