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// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package util
import (
"errors"
"net/url"
"os"
"path"
"path/filepath"
"regexp"
"runtime"
"strings"
)
// EnsureAbsolutePath ensure that a path is absolute, making it
// relative to absoluteBase if necessary
func EnsureAbsolutePath(path string, absoluteBase string) string {
if filepath.IsAbs(path) {
return path
}
return filepath.Join(absoluteBase, path)
}
const notRegularFileMode os.FileMode = os.ModeDir | os.ModeSymlink | os.ModeNamedPipe | os.ModeSocket | os.ModeDevice | os.ModeCharDevice | os.ModeIrregular
// GetDirectorySize returns the dumb disk consumption for a given path
func GetDirectorySize(path string) (int64, error) {
var size int64
err := filepath.Walk(path, func(_ string, info os.FileInfo, err error) error {
if info != nil && (info.Mode()¬RegularFileMode) == 0 {
size += info.Size()
}
return err
})
return size, err
}
// 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 strings.Contains(fi.Name(), ".DS_Store") {
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)
}
// 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 runtime.GOOS != "windows" {
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
}
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