2016-03-20 23:01:11 +01:00
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// +build windows
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package getter
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import (
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"fmt"
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"io"
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"net/url"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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)
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func (g *FileGetter) Get(dst string, u *url.URL) error {
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2016-08-25 01:48:59 +02:00
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path := u.Path
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if u.RawPath != "" {
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path = u.RawPath
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}
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2016-03-20 23:01:11 +01:00
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// The source path must exist and be a directory to be usable.
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2016-08-25 01:48:59 +02:00
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if fi, err := os.Stat(path); err != nil {
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2016-03-20 23:01:11 +01:00
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return fmt.Errorf("source path error: %s", err)
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} else if !fi.IsDir() {
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return fmt.Errorf("source path must be a directory")
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}
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fi, err := os.Lstat(dst)
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if err != nil && !os.IsNotExist(err) {
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return err
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}
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// If the destination already exists, it must be a symlink
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if err == nil {
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mode := fi.Mode()
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if mode&os.ModeSymlink == 0 {
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return fmt.Errorf("destination exists and is not a symlink")
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}
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// Remove the destination
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if err := os.Remove(dst); err != nil {
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return err
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}
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}
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// Create all the parent directories
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if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
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return err
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}
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2016-08-25 01:48:59 +02:00
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sourcePath := toBackslash(path)
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2016-03-20 23:01:11 +01:00
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// Use mklink to create a junction point
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output, err := exec.Command("cmd", "/c", "mklink", "/J", dst, sourcePath).CombinedOutput()
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if err != nil {
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return fmt.Errorf("failed to run mklink %v %v: %v %q", dst, sourcePath, err, output)
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}
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return nil
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}
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func (g *FileGetter) GetFile(dst string, u *url.URL) error {
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2016-08-25 01:48:59 +02:00
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path := u.Path
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if u.RawPath != "" {
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path = u.RawPath
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}
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2016-03-20 23:01:11 +01:00
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// The source path must exist and be a directory to be usable.
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2016-08-25 01:48:59 +02:00
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if fi, err := os.Stat(path); err != nil {
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2016-03-20 23:01:11 +01:00
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return fmt.Errorf("source path error: %s", err)
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} else if fi.IsDir() {
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return fmt.Errorf("source path must be a file")
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}
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_, err := os.Lstat(dst)
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if err != nil && !os.IsNotExist(err) {
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return err
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}
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// If the destination already exists, it must be a symlink
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if err == nil {
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// Remove the destination
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if err := os.Remove(dst); err != nil {
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return err
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}
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}
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// Create all the parent directories
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if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
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return err
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}
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// If we're not copying, just symlink and we're done
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if !g.Copy {
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2016-08-25 01:48:59 +02:00
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return os.Symlink(path, dst)
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2016-03-20 23:01:11 +01:00
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}
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// Copy
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2016-08-25 01:48:59 +02:00
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srcF, err := os.Open(path)
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2016-03-20 23:01:11 +01:00
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if err != nil {
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return err
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}
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defer srcF.Close()
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dstF, err := os.Create(dst)
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if err != nil {
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return err
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}
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defer dstF.Close()
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_, err = io.Copy(dstF, srcF)
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return err
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}
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// toBackslash returns the result of replacing each slash character
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// in path with a backslash ('\') character. Multiple separators are
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// replaced by multiple backslashes.
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func toBackslash(path string) string {
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return strings.Replace(path, "/", "\\", -1)
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}
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