mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-15 11:58:11 -05:00
108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
// Copyright 2013 Unknown
|
|
//
|
|
// 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 cae implements PHP-like Compression and Archive Extensions.
|
|
package cae
|
|
|
|
import (
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
// A Streamer describes an streamable archive object.
|
|
type Streamer interface {
|
|
StreamFile(string, os.FileInfo, []byte) error
|
|
StreamReader(string, os.FileInfo, io.Reader) error
|
|
Close() error
|
|
}
|
|
|
|
// A HookFunc represents a middleware for packing and extracting archive.
|
|
type HookFunc func(string, os.FileInfo) error
|
|
|
|
// HasPrefix returns true if name has any string in given slice as prefix.
|
|
func HasPrefix(name string, prefixes []string) bool {
|
|
for _, prefix := range prefixes {
|
|
if strings.HasPrefix(name, prefix) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsEntry returns true if name equals to any string in given slice.
|
|
func IsEntry(name string, entries []string) bool {
|
|
for _, e := range entries {
|
|
if e == name {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsFilter returns true if given name matches any of global filter rule.
|
|
func IsFilter(name string) bool {
|
|
if strings.Contains(name, ".DS_Store") {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsExist returns true if given path is a file or directory.
|
|
func IsExist(path string) bool {
|
|
_, err := os.Stat(path)
|
|
return err == nil || os.IsExist(err)
|
|
}
|
|
|
|
// Copy copies file from source to target path.
|
|
func Copy(dest, src string) error {
|
|
// Gather file information to set back later.
|
|
si, err := os.Lstat(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Handle symbolic link.
|
|
if si.Mode()&os.ModeSymlink != 0 {
|
|
target, err := os.Readlink(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// NOTE: os.Chmod and os.Chtimes don't recoganize symbolic link,
|
|
// which will lead "no such file or directory" error.
|
|
return os.Symlink(target, dest)
|
|
}
|
|
|
|
sr, err := os.Open(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer sr.Close()
|
|
|
|
dw, err := os.Create(dest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer dw.Close()
|
|
|
|
if _, err = io.Copy(dw, sr); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Set back file information.
|
|
if err = os.Chtimes(dest, si.ModTime(), si.ModTime()); err != nil {
|
|
return err
|
|
}
|
|
return os.Chmod(dest, si.Mode())
|
|
}
|