mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 06:30:41 +01:00
b401bd1ccb
* [chore] update latest deps, ensure readme up to date * remove double entry
330 lines
7.2 KiB
Go
330 lines
7.2 KiB
Go
// Copyright ©2015 Steve Francia <spf@spf13.com>
|
|
// Portions Copyright ©2015 The Hugo Authors
|
|
// Portions Copyright 2016-present Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package afero
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"unicode"
|
|
|
|
"golang.org/x/text/runes"
|
|
"golang.org/x/text/transform"
|
|
"golang.org/x/text/unicode/norm"
|
|
)
|
|
|
|
// Filepath separator defined by os.Separator.
|
|
const FilePathSeparator = string(filepath.Separator)
|
|
|
|
// Takes a reader and a path and writes the content
|
|
func (a Afero) WriteReader(path string, r io.Reader) (err error) {
|
|
return WriteReader(a.Fs, path, r)
|
|
}
|
|
|
|
func WriteReader(fs Fs, path string, r io.Reader) (err error) {
|
|
dir, _ := filepath.Split(path)
|
|
ospath := filepath.FromSlash(dir)
|
|
|
|
if ospath != "" {
|
|
err = fs.MkdirAll(ospath, 0o777) // rwx, rw, r
|
|
if err != nil {
|
|
if err != os.ErrExist {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
file, err := fs.Create(path)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer file.Close()
|
|
|
|
_, err = io.Copy(file, r)
|
|
return
|
|
}
|
|
|
|
// Same as WriteReader but checks to see if file/directory already exists.
|
|
func (a Afero) SafeWriteReader(path string, r io.Reader) (err error) {
|
|
return SafeWriteReader(a.Fs, path, r)
|
|
}
|
|
|
|
func SafeWriteReader(fs Fs, path string, r io.Reader) (err error) {
|
|
dir, _ := filepath.Split(path)
|
|
ospath := filepath.FromSlash(dir)
|
|
|
|
if ospath != "" {
|
|
err = fs.MkdirAll(ospath, 0o777) // rwx, rw, r
|
|
if err != nil {
|
|
return
|
|
}
|
|
}
|
|
|
|
exists, err := Exists(fs, path)
|
|
if err != nil {
|
|
return
|
|
}
|
|
if exists {
|
|
return fmt.Errorf("%v already exists", path)
|
|
}
|
|
|
|
file, err := fs.Create(path)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer file.Close()
|
|
|
|
_, err = io.Copy(file, r)
|
|
return
|
|
}
|
|
|
|
func (a Afero) GetTempDir(subPath string) string {
|
|
return GetTempDir(a.Fs, subPath)
|
|
}
|
|
|
|
// GetTempDir returns the default temp directory with trailing slash
|
|
// if subPath is not empty then it will be created recursively with mode 777 rwx rwx rwx
|
|
func GetTempDir(fs Fs, subPath string) string {
|
|
addSlash := func(p string) string {
|
|
if FilePathSeparator != p[len(p)-1:] {
|
|
p = p + FilePathSeparator
|
|
}
|
|
return p
|
|
}
|
|
dir := addSlash(os.TempDir())
|
|
|
|
if subPath != "" {
|
|
// preserve windows backslash :-(
|
|
if FilePathSeparator == "\\" {
|
|
subPath = strings.Replace(subPath, "\\", "____", -1)
|
|
}
|
|
dir = dir + UnicodeSanitize((subPath))
|
|
if FilePathSeparator == "\\" {
|
|
dir = strings.Replace(dir, "____", "\\", -1)
|
|
}
|
|
|
|
if exists, _ := Exists(fs, dir); exists {
|
|
return addSlash(dir)
|
|
}
|
|
|
|
err := fs.MkdirAll(dir, 0o777)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
dir = addSlash(dir)
|
|
}
|
|
return dir
|
|
}
|
|
|
|
// Rewrite string to remove non-standard path characters
|
|
func UnicodeSanitize(s string) string {
|
|
source := []rune(s)
|
|
target := make([]rune, 0, len(source))
|
|
|
|
for _, r := range source {
|
|
if unicode.IsLetter(r) ||
|
|
unicode.IsDigit(r) ||
|
|
unicode.IsMark(r) ||
|
|
r == '.' ||
|
|
r == '/' ||
|
|
r == '\\' ||
|
|
r == '_' ||
|
|
r == '-' ||
|
|
r == '%' ||
|
|
r == ' ' ||
|
|
r == '#' {
|
|
target = append(target, r)
|
|
}
|
|
}
|
|
|
|
return string(target)
|
|
}
|
|
|
|
// Transform characters with accents into plain forms.
|
|
func NeuterAccents(s string) string {
|
|
t := transform.Chain(norm.NFD, runes.Remove(runes.In(unicode.Mn)), norm.NFC)
|
|
result, _, _ := transform.String(t, string(s))
|
|
|
|
return result
|
|
}
|
|
|
|
func (a Afero) FileContainsBytes(filename string, subslice []byte) (bool, error) {
|
|
return FileContainsBytes(a.Fs, filename, subslice)
|
|
}
|
|
|
|
// Check if a file contains a specified byte slice.
|
|
func FileContainsBytes(fs Fs, filename string, subslice []byte) (bool, error) {
|
|
f, err := fs.Open(filename)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer f.Close()
|
|
|
|
return readerContainsAny(f, subslice), nil
|
|
}
|
|
|
|
func (a Afero) FileContainsAnyBytes(filename string, subslices [][]byte) (bool, error) {
|
|
return FileContainsAnyBytes(a.Fs, filename, subslices)
|
|
}
|
|
|
|
// Check if a file contains any of the specified byte slices.
|
|
func FileContainsAnyBytes(fs Fs, filename string, subslices [][]byte) (bool, error) {
|
|
f, err := fs.Open(filename)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer f.Close()
|
|
|
|
return readerContainsAny(f, subslices...), nil
|
|
}
|
|
|
|
// readerContains reports whether any of the subslices is within r.
|
|
func readerContainsAny(r io.Reader, subslices ...[]byte) bool {
|
|
if r == nil || len(subslices) == 0 {
|
|
return false
|
|
}
|
|
|
|
largestSlice := 0
|
|
|
|
for _, sl := range subslices {
|
|
if len(sl) > largestSlice {
|
|
largestSlice = len(sl)
|
|
}
|
|
}
|
|
|
|
if largestSlice == 0 {
|
|
return false
|
|
}
|
|
|
|
bufflen := largestSlice * 4
|
|
halflen := bufflen / 2
|
|
buff := make([]byte, bufflen)
|
|
var err error
|
|
var n, i int
|
|
|
|
for {
|
|
i++
|
|
if i == 1 {
|
|
n, err = io.ReadAtLeast(r, buff[:halflen], halflen)
|
|
} else {
|
|
if i != 2 {
|
|
// shift left to catch overlapping matches
|
|
copy(buff[:], buff[halflen:])
|
|
}
|
|
n, err = io.ReadAtLeast(r, buff[halflen:], halflen)
|
|
}
|
|
|
|
if n > 0 {
|
|
for _, sl := range subslices {
|
|
if bytes.Contains(buff, sl) {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
|
|
if err != nil {
|
|
break
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (a Afero) DirExists(path string) (bool, error) {
|
|
return DirExists(a.Fs, path)
|
|
}
|
|
|
|
// DirExists checks if a path exists and is a directory.
|
|
func DirExists(fs Fs, path string) (bool, error) {
|
|
fi, err := fs.Stat(path)
|
|
if err == nil && fi.IsDir() {
|
|
return true, nil
|
|
}
|
|
if os.IsNotExist(err) {
|
|
return false, nil
|
|
}
|
|
return false, err
|
|
}
|
|
|
|
func (a Afero) IsDir(path string) (bool, error) {
|
|
return IsDir(a.Fs, path)
|
|
}
|
|
|
|
// IsDir checks if a given path is a directory.
|
|
func IsDir(fs Fs, path string) (bool, error) {
|
|
fi, err := fs.Stat(path)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
return fi.IsDir(), nil
|
|
}
|
|
|
|
func (a Afero) IsEmpty(path string) (bool, error) {
|
|
return IsEmpty(a.Fs, path)
|
|
}
|
|
|
|
// IsEmpty checks if a given file or directory is empty.
|
|
func IsEmpty(fs Fs, path string) (bool, error) {
|
|
if b, _ := Exists(fs, path); !b {
|
|
return false, fmt.Errorf("%q path does not exist", path)
|
|
}
|
|
fi, err := fs.Stat(path)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if fi.IsDir() {
|
|
f, err := fs.Open(path)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer f.Close()
|
|
list, err := f.Readdir(-1)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
return len(list) == 0, nil
|
|
}
|
|
return fi.Size() == 0, nil
|
|
}
|
|
|
|
func (a Afero) Exists(path string) (bool, error) {
|
|
return Exists(a.Fs, path)
|
|
}
|
|
|
|
// Check if a file or directory exists.
|
|
func Exists(fs Fs, path string) (bool, error) {
|
|
_, err := fs.Stat(path)
|
|
if err == nil {
|
|
return true, nil
|
|
}
|
|
if os.IsNotExist(err) {
|
|
return false, nil
|
|
}
|
|
return false, err
|
|
}
|
|
|
|
func FullBaseFsPath(basePathFs *BasePathFs, relativePath string) string {
|
|
combinedPath := filepath.Join(basePathFs.path, relativePath)
|
|
if parent, ok := basePathFs.source.(*BasePathFs); ok {
|
|
return FullBaseFsPath(parent, combinedPath)
|
|
}
|
|
|
|
return combinedPath
|
|
}
|