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- // Copyright 2013 @atotto. All rights reserved.
- // Use of this source code is governed by a BSD-style
- // license that can be found in the LICENSE file.
- //go:build freebsd || linux || netbsd || openbsd || solaris || dragonfly
- // +build freebsd linux netbsd openbsd solaris dragonfly
- package clipboard
- import (
- "errors"
- "os/exec"
- )
- const (
- xsel = "xsel"
- xclip = "xclip"
- )
- var (
- // Primary choose primary mode on unix
- Primary bool
- pasteCmdArgs, copyCmdArgs []string
- xselPasteArgs = []string{xsel, "--output", "--clipboard"}
- xselCopyArgs = []string{xsel, "--input", "--clipboard"}
- xclipPasteArgs = []string{xclip, "-out", "-selection", "clipboard"}
- xclipCopyArgs = []string{xclip, "-in", "-selection", "clipboard"}
- errMissingCommands = errors.New("No clipboard utilities available. Please install xsel or xclip")
- )
- func init() {
- pasteCmdArgs = xclipPasteArgs
- copyCmdArgs = xclipCopyArgs
- if _, err := exec.LookPath(xclip); err == nil {
- return
- }
- pasteCmdArgs = xselPasteArgs
- copyCmdArgs = xselCopyArgs
- if _, err := exec.LookPath(xsel); err == nil {
- return
- }
- Unsupported = true
- }
- func getPasteCommand() *exec.Cmd {
- if Primary {
- pasteCmdArgs = pasteCmdArgs[:1]
- }
- return exec.Command(pasteCmdArgs[0], pasteCmdArgs[1:]...)
- }
- func getCopyCommand() *exec.Cmd {
- if Primary {
- copyCmdArgs = copyCmdArgs[:1]
- }
- return exec.Command(copyCmdArgs[0], copyCmdArgs[1:]...)
- }
- func readAll() (string, error) {
- if Unsupported {
- return "", errMissingCommands
- }
- pasteCmd := getPasteCommand()
- out, err := pasteCmd.Output()
- if err != nil {
- return "", err
- }
- return string(out), nil
- }
- func writeAll(text string) error {
- if Unsupported {
- return errMissingCommands
- }
- copyCmd := getCopyCommand()
- in, err := copyCmd.StdinPipe()
- if err != nil {
- return err
- }
- if err := copyCmd.Start(); err != nil {
- return err
- }
- if _, err := in.Write([]byte(text)); err != nil {
- return err
- }
- if err := in.Close(); err != nil {
- return err
- }
- return copyCmd.Wait()
- }
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