packer-cn/packer/config_file_windows.go

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// +build windows
package packer
import (
"path/filepath"
"syscall"
"unsafe"
)
var (
shell = syscall.MustLoadDLL("Shell32.dll")
getFolderPath = shell.MustFindProc("SHGetFolderPathW")
)
const CSIDL_APPDATA = 26
func configFile() (string, error) {
dir, err := homeDir()
if err != nil {
return "", err
}
return filepath.Join(dir, "packer.config"), nil
}
func configDir() (string, error) {
dir, err := homeDir()
if err != nil {
return "", err
}
return filepath.Join(dir, "packer.d"), nil
}
func homeDir() (string, error) {
b := make([]uint16, syscall.MAX_PATH)
// See: http://msdn.microsoft.com/en-us/library/windows/desktop/bb762181(v=vs.85).aspx
r, _, err := getFolderPath.Call(0, CSIDL_APPDATA, 0, 0, uintptr(unsafe.Pointer(&b[0])))
if uint32(r) != 0 {
return "", err
}
return syscall.UTF16ToString(b), nil
}