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clipboard_unix.go
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clipboard_unix.go
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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.
// +build freebsd linux netbsd openbsd solaris
package clipboard
import (
"errors"
"os/exec"
)
const (
xsel = "xsel"
xclip = "xclip"
)
var (
pasteCmdArgs []string
copyCmdArgs []string
xselPasteArgs = []string{xsel, "--output", "--clipboard"}
xselCopyArgs = []string{xsel, "--input", "--clipboard"}
xclipPasteArgs = []string{xclip, "-out", "-selection", "clipboard"}
xclipCopyArgs = []string{xclip, "-in", "-selection", "clipboard"}
missingCommands = 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 {
return exec.Command(pasteCmdArgs[0], pasteCmdArgs[1:]...)
}
func getCopyCommand() *exec.Cmd {
return exec.Command(copyCmdArgs[0], copyCmdArgs[1:]...)
}
func readAll() (string, error) {
if Unsupported {
return "", missingCommands
}
pasteCmd := getPasteCommand()
out, err := pasteCmd.Output()
if err != nil {
return "", err
}
return string(out), nil
}
func writeAll(text string) error {
if Unsupported {
return missingCommands
}
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()
}