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- // Copyright 2017 The Gitea Authors. All rights reserved.
- // SPDX-License-Identifier: MIT
-
- package util
-
- import (
- "errors"
- "net/url"
- "os"
- "path"
- "path/filepath"
- "regexp"
- "runtime"
- )
-
- // EnsureAbsolutePath ensure that a path is absolute, making it
- // relative to absoluteBase if necessary
- func EnsureAbsolutePath(path, absoluteBase string) string {
- if filepath.IsAbs(path) {
- return path
- }
- return filepath.Join(absoluteBase, path)
- }
-
- // IsDir returns true if given path is a directory,
- // or returns false when it's a file or does not exist.
- func IsDir(dir string) (bool, error) {
- f, err := os.Stat(dir)
- if err == nil {
- return f.IsDir(), nil
- }
- if os.IsNotExist(err) {
- return false, nil
- }
- return false, err
- }
-
- // IsFile returns true if given path is a file,
- // or returns false when it's a directory or does not exist.
- func IsFile(filePath string) (bool, error) {
- f, err := os.Stat(filePath)
- if err == nil {
- return !f.IsDir(), nil
- }
- if os.IsNotExist(err) {
- return false, nil
- }
- return false, err
- }
-
- // IsExist checks whether a file or directory exists.
- // It returns false when the file or directory does not exist.
- func IsExist(path string) (bool, error) {
- _, err := os.Stat(path)
- if err == nil || os.IsExist(err) {
- return true, nil
- }
- if os.IsNotExist(err) {
- return false, nil
- }
- return false, err
- }
-
- func statDir(dirPath, recPath string, includeDir, isDirOnly, followSymlinks bool) ([]string, error) {
- dir, err := os.Open(dirPath)
- if err != nil {
- return nil, err
- }
- defer dir.Close()
-
- fis, err := dir.Readdir(0)
- if err != nil {
- return nil, err
- }
-
- statList := make([]string, 0)
- for _, fi := range fis {
- if CommonSkip(fi.Name()) {
- continue
- }
-
- relPath := path.Join(recPath, fi.Name())
- curPath := path.Join(dirPath, fi.Name())
- if fi.IsDir() {
- if includeDir {
- statList = append(statList, relPath+"/")
- }
- s, err := statDir(curPath, relPath, includeDir, isDirOnly, followSymlinks)
- if err != nil {
- return nil, err
- }
- statList = append(statList, s...)
- } else if !isDirOnly {
- statList = append(statList, relPath)
- } else if followSymlinks && fi.Mode()&os.ModeSymlink != 0 {
- link, err := os.Readlink(curPath)
- if err != nil {
- return nil, err
- }
-
- isDir, err := IsDir(link)
- if err != nil {
- return nil, err
- }
- if isDir {
- if includeDir {
- statList = append(statList, relPath+"/")
- }
- s, err := statDir(curPath, relPath, includeDir, isDirOnly, followSymlinks)
- if err != nil {
- return nil, err
- }
- statList = append(statList, s...)
- }
- }
- }
- return statList, nil
- }
-
- // StatDir gathers information of given directory by depth-first.
- // It returns slice of file list and includes subdirectories if enabled;
- // it returns error and nil slice when error occurs in underlying functions,
- // or given path is not a directory or does not exist.
- //
- // Slice does not include given path itself.
- // If subdirectories is enabled, they will have suffix '/'.
- func StatDir(rootPath string, includeDir ...bool) ([]string, error) {
- if isDir, err := IsDir(rootPath); err != nil {
- return nil, err
- } else if !isDir {
- return nil, errors.New("not a directory or does not exist: " + rootPath)
- }
-
- isIncludeDir := false
- if len(includeDir) != 0 {
- isIncludeDir = includeDir[0]
- }
- return statDir(rootPath, "", isIncludeDir, false, false)
- }
-
- func isOSWindows() bool {
- return runtime.GOOS == "windows"
- }
-
- // FileURLToPath extracts the path information from a file://... url.
- func FileURLToPath(u *url.URL) (string, error) {
- if u.Scheme != "file" {
- return "", errors.New("URL scheme is not 'file': " + u.String())
- }
-
- path := u.Path
-
- if !isOSWindows() {
- return path, nil
- }
-
- // If it looks like there's a Windows drive letter at the beginning, strip off the leading slash.
- re := regexp.MustCompile("/[A-Za-z]:/")
- if re.MatchString(path) {
- return path[1:], nil
- }
- return path, nil
- }
-
- // HomeDir returns path of '~'(in Linux) on Windows,
- // it returns error when the variable does not exist.
- func HomeDir() (home string, err error) {
- // TODO: some users run Gitea with mismatched uid and "HOME=xxx" (they set HOME=xxx by environment manually)
- // TODO: when running gitea as a sub command inside git, the HOME directory is not the user's home directory
- // so at the moment we can not use `user.Current().HomeDir`
- if isOSWindows() {
- home = os.Getenv("USERPROFILE")
- if home == "" {
- home = os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
- }
- } else {
- home = os.Getenv("HOME")
- }
-
- if home == "" {
- return "", errors.New("cannot get home directory")
- }
-
- return home, nil
- }
-
- // CommonSkip will check a provided name to see if it represents file or directory that should not be watched
- func CommonSkip(name string) bool {
- if name == "" {
- return true
- }
-
- switch name[0] {
- case '.':
- return true
- case 't', 'T':
- return name[1:] == "humbs.db"
- case 'd', 'D':
- return name[1:] == "esktop.ini"
- }
-
- return false
- }
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