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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package unittest
import (
"os"
"path/filepath"
"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)
}
return util.CopyFile(src, dest)
}
// Sync synchronizes the two files. This is skipped if both files
// exist and the size, modtime, and mode match.
func Sync(srcPath, destPath string) error {
dest, err := os.Stat(destPath)
if err != nil {
if os.IsNotExist(err) {
return Copy(srcPath, destPath)
}
return err
}
src, err := os.Stat(srcPath)
if err != nil {
return err
}
if src.Size() == dest.Size() &&
src.ModTime() == dest.ModTime() &&
src.Mode() == dest.Mode() {
return nil
}
return Copy(srcPath, destPath)
}
// SyncDirs synchronizes files recursively from source to target directory.
// It returns error when error occurs in underlying functions.
func SyncDirs(srcPath, destPath string) error {
err := os.MkdirAll(destPath, os.ModePerm)
if err != nil {
return err
}
// find and delete all untracked files
destFiles, err := util.StatDir(destPath, true)
if err != nil {
return err
}
for _, destFile := range destFiles {
destFilePath := filepath.Join(destPath, destFile)
if _, err = os.Stat(filepath.Join(srcPath, destFile)); err != nil {
if os.IsNotExist(err) {
// if src file does not exist, remove dest file
if err = os.RemoveAll(destFilePath); err != nil {
return err
}
} else {
return err
}
}
}
// sync src files to dest
srcFiles, err := util.StatDir(srcPath, true)
if err != nil {
return err
}
for _, srcFile := range srcFiles {
destFilePath := filepath.Join(destPath, srcFile)
// util.StatDir appends a slash to the directory name
if strings.HasSuffix(srcFile, "/") {
err = os.MkdirAll(destFilePath, os.ModePerm)
} else {
err = Sync(filepath.Join(srcPath, srcFile), destFilePath)
}
if err != nil {
return err
}
}
return nil
}
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