Golang给目录按时间排序.正则、时间条件搜索文件

package filepathimport ("io/ioutil""os""path/filepath""regexp""strings""time")//path表示搜索的路径,FullDir表示是不是递归查询,MatchDir表示是否匹配目录.type FindFiles struct {Path     string `json:path`FullDir  bool   `json:fulldir`MatchDir bool   `json:matchdir`}//date小于等于0的时候表示查找最近这段时间的文件func (self FindFiles) DateFindFile(date int64) ([]string, error) {date = date * 24 * 60 * 60var less boolswitch {case date <= 0:date = time.Now().Unix() + dateless = truecase date > 0:date = time.Now().Unix() - dateless = false}return datewalk(date, less, self.FullDir, self.MatchDir, self.Path)}func (self FindFiles) RegFindFile(reg string) ([]string, error) {if strings.Index(reg, "*") == 0 {reg = "." + reg} else {reg = "^" + reg}reg += "$"Reg, err := regexp.Compile(reg)if err != nil {return []string{}, nil}if self.FullDir {return namewalk(Reg, self.MatchDir, self.Path)}var list []stringinfos, err := readDir(self.Path)if err != nil {return list, nil}path := filepath.ToSlash(self.Path)if !strings.HasSuffix(path, "/") {path += "/"}for _, v := range infos {if Reg.MatchString(v.Name()) {if v.IsDir() && !self.MatchDir {continue}list = append(list, path+v.Name())}}return list, nil}func (self FindFiles) DateAndRegexp(date int64, reg string) ([]string, error) {var l []stringlist, err := self.RegFindFile(reg)if err != nil {return l, err}date = date * 24 * 60 * 60var less bool = falseif date <= 0 {date = time.Now().Unix() + dateless = true} else {date = time.Now().Unix() - date}for _, v := range list {info, err := os.Stat(v)if err != nil {continue}if less {if date > info.ModTime().Unix() {continue}} else {if date < info.ModTime().Unix() {continue}}l = append(l, v)}return l, nil}func datewalk(date int64, less bool, fulldir, matchdir bool, path string) ([]string, error) {var list []stringif !strings.HasSuffix(path, "/") {path += "/"}if !fulldir {infos, err := readDir(path)if err != nil {return list, err}for _, info := range infos {file, ok := dResolve(date, less, matchdir, path, info)if ok {file = path + filelist = append(list, file)}}return list, nil}return list, filepath.Walk(path, func(root string, info os.FileInfo, err error) error {if err != nil {return err}_, ok := dResolve(date, less, matchdir, root, info)if ok {root = filepath.ToSlash(root)list = append(list, root)}return nil})}func dResolve(date int64, less, matchdir bool, root string, info os.FileInfo) (string, bool) {if less {if date > info.ModTime().Unix() {return "", false}} else {if date < info.ModTime().Unix() {return "", false}}root = filepath.ToSlash(root)if info.IsDir() && !matchdir {return "", false}return info.Name(), true}func namewalk(reg *regexp.Regexp, matchdir bool, path string) ([]string, error) {var list []stringreturn list, filepath.Walk(path, func(root string, info os.FileInfo, err error) error {if err != nil {return err}if !reg.MatchString(info.Name()) {return nil}root = filepath.ToSlash(root)if info.IsDir() && !matchdir {return nil}list = append(list, root)return nil})}func readDir(path string) ([]os.FileInfo, error) {info, err := os.Stat(path)if err != nil {return nil, err}if info.IsDir() {return ioutil.ReadDir(path)}return []os.FileInfo{info}, nil}/*type fileInfo []os.FileInfofunc (self fileInfo) Less(i, j int) bool {return self[i].ModTime().Unix() > self[j].ModTime().Unix()}func (self fileInfo) Len() int {return len(self)}func (self fileInfo) Swap(i, j int) {self[i], self[j] = self[j], self[i]}func ReadDir(path string) ([]os.FileInfo, error) {list, err := readDir(path)if err != nil {return nil, err}sort.Sort(fileInfo(list))return list, err}*/