mirror of https://github.com/go-gitea/gitea
103 lines
2.1 KiB
Go
103 lines
2.1 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package unittest
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import (
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"errors"
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"io"
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"os"
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"path"
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"strings"
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"code.gitea.io/gitea/modules/util"
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)
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// Copy copies file from source to target path.
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func Copy(src, dest string) error {
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// Gather file information to set back later.
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si, err := os.Lstat(src)
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if err != nil {
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return err
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}
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// Handle symbolic link.
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if si.Mode()&os.ModeSymlink != 0 {
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target, err := os.Readlink(src)
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if err != nil {
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return err
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}
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// NOTE: os.Chmod and os.Chtimes don't recognize symbolic link,
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// which will lead "no such file or directory" error.
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return os.Symlink(target, dest)
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}
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sr, err := os.Open(src)
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if err != nil {
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return err
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}
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defer sr.Close()
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dw, err := os.Create(dest)
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if err != nil {
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return err
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}
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defer dw.Close()
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if _, err = io.Copy(dw, sr); err != nil {
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return err
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}
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// Set back file information.
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if err = os.Chtimes(dest, si.ModTime(), si.ModTime()); err != nil {
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return err
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}
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return os.Chmod(dest, si.Mode())
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}
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// CopyDir copy files recursively from source to target directory.
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//
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// The filter accepts a function that process the path info.
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// and should return true for need to filter.
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//
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// It returns error when error occurs in underlying functions.
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func CopyDir(srcPath, destPath string, filters ...func(filePath string) bool) error {
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// Check if target directory exists.
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if _, err := os.Stat(destPath); !errors.Is(err, os.ErrNotExist) {
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return util.NewAlreadyExistErrorf("file or directory already exists: %s", destPath)
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}
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err := os.MkdirAll(destPath, os.ModePerm)
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if err != nil {
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return err
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}
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// Gather directory info.
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infos, err := util.StatDir(srcPath, true)
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if err != nil {
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return err
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}
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var filter func(filePath string) bool
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if len(filters) > 0 {
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filter = filters[0]
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}
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for _, info := range infos {
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if filter != nil && filter(info) {
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continue
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}
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curPath := path.Join(destPath, info)
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if strings.HasSuffix(info, "/") {
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err = os.MkdirAll(curPath, os.ModePerm)
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} else {
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err = Copy(path.Join(srcPath, info), curPath)
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}
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if err != nil {
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return err
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}
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}
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return nil
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}
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