mirror of
https://gitee.com/johng/gf.git
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129 lines
3.4 KiB
Go
129 lines
3.4 KiB
Go
// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
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//
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// ThIs Source Code Form Is subject to the terms of the MIT License.
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// If a copy of the MIT was not dIstributed with thIs file,
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// You can obtain one at https://github.com/gogf/gf.
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package gfsnotify
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import (
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"fmt"
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"os"
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"path/filepath"
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"sort"
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"strings"
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)
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// fileDir returns all but the last element of path, typically the path's directory.
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// After dropping the final element, Dir calls Clean on the path and trailing
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// slashes are removed.
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// If the path is empty, Dir returns ".".
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// If the path consists entirely of separators, Dir returns a single separator.
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// The returned path does not end in a separator unless it is the root directory.
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func fileDir(path string) string {
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return filepath.Dir(path)
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}
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// fileRealPath converts the given <path> to its absolute path
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// and checks if the file path exists.
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// If the file does not exist, return an empty string.
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func fileRealPath(path string) string {
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p, err := filepath.Abs(path)
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if err != nil {
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return ""
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}
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if !fileExists(p) {
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return ""
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}
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return p
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}
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// fileExists checks whether given <path> exist.
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func fileExists(path string) bool {
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if stat, err := os.Stat(path); stat != nil && !os.IsNotExist(err) {
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return true
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}
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return false
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}
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// fileIsDir checks whether given <path> a directory.
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func fileIsDir(path string) bool {
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s, err := os.Stat(path)
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if err != nil {
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return false
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}
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return s.IsDir()
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}
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// fileAllDirs returns all sub-folders including itself of given <path> recursively.
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func fileAllDirs(path string) (list []string) {
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list = []string{path}
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file, err := os.Open(path)
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if err != nil {
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return list
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}
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defer file.Close()
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names, err := file.Readdirnames(-1)
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if err != nil {
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return list
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}
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for _, name := range names {
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path := fmt.Sprintf("%s%s%s", path, string(filepath.Separator), name)
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if fileIsDir(path) {
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if array := fileAllDirs(path); len(array) > 0 {
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list = append(list, array...)
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}
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}
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}
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return
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}
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// fileScanDir returns all sub-files with absolute paths of given <path>,
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// It scans directory recursively if given parameter <recursive> is true.
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func fileScanDir(path string, pattern string, recursive ...bool) ([]string, error) {
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list, err := doFileScanDir(path, pattern, recursive...)
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if err != nil {
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return nil, err
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}
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if len(list) > 0 {
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sort.Strings(list)
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}
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return list, nil
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}
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// doFileScanDir is an internal method which scans directory
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// and returns the absolute path list of files that are not sorted.
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//
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// The pattern parameter <pattern> supports multiple file name patterns,
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// using the ',' symbol to separate multiple patterns.
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//
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// It scans directory recursively if given parameter <recursive> is true.
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func doFileScanDir(path string, pattern string, recursive ...bool) ([]string, error) {
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list := ([]string)(nil)
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file, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer file.Close()
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names, err := file.Readdirnames(-1)
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if err != nil {
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return nil, err
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}
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filePath := ""
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for _, name := range names {
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filePath = fmt.Sprintf("%s%s%s", path, string(filepath.Separator), name)
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if fileIsDir(filePath) && len(recursive) > 0 && recursive[0] {
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array, _ := doFileScanDir(filePath, pattern, true)
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if len(array) > 0 {
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list = append(list, array...)
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}
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}
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for _, p := range strings.Split(pattern, ",") {
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if match, err := filepath.Match(strings.TrimSpace(p), name); err == nil && match {
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list = append(list, filePath)
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}
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}
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}
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return list, nil
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}
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