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- // Copyright 2022 The Gitea Authors. All rights reserved.
- // SPDX-License-Identifier: MIT
-
- package unittest
-
- import (
- "errors"
- "io"
- "os"
- "path"
- "strings"
-
- "code.gitea.io/gitea/modules/util"
- )
-
- // Copy copies file from source to target path.
- func Copy(src, dest 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 recognize 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())
- }
-
- // CopyDir copy files recursively from source to target directory.
- //
- // The filter accepts a function that process the path info.
- // and should return true for need to filter.
- //
- // It returns error when error occurs in underlying functions.
- func CopyDir(srcPath, destPath string, filters ...func(filePath string) bool) error {
- // Check if target directory exists.
- if _, err := os.Stat(destPath); !errors.Is(err, os.ErrNotExist) {
- return util.NewAlreadyExistErrorf("file or directory already exists: %s", destPath)
- }
-
- err := os.MkdirAll(destPath, os.ModePerm)
- if err != nil {
- return err
- }
-
- // Gather directory info.
- infos, err := util.StatDir(srcPath, true)
- if err != nil {
- return err
- }
-
- var filter func(filePath string) bool
- if len(filters) > 0 {
- filter = filters[0]
- }
-
- for _, info := range infos {
- if filter != nil && filter(info) {
- continue
- }
-
- curPath := path.Join(destPath, info)
- if strings.HasSuffix(info, "/") {
- err = os.MkdirAll(curPath, os.ModePerm)
- } else {
- err = Copy(path.Join(srcPath, info), curPath)
- }
- if err != nil {
- return err
- }
- }
- return nil
- }
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