A qubes-pass-client selection/paste UI

qubes-gopass.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"bytes"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+)
+
+func Execute(output_buffer *bytes.Buffer, stack ...*exec.Cmd) (err error) {
+	var error_buffer bytes.Buffer
+	pipe_stack := make([]*io.PipeWriter, len(stack)-1)
+	idx := 0
+	for ; idx < len(stack)-1; idx++ {
+		stdin_pipe, stdout_pipe := io.Pipe()
+		stack[idx].Stdout = stdout_pipe
+		stack[idx].Stderr = &error_buffer
+		stack[idx+1].Stdin = stdin_pipe
+		pipe_stack[idx] = stdout_pipe
+	}
+	stack[idx].Stdout = output_buffer
+	stack[idx].Stderr = &error_buffer
+
+	if err := call(stack, pipe_stack); err != nil {
+		log.Fatalln(error_buffer.String(), err)
+	}
+	return err
+}
+
+func call(stack []*exec.Cmd, pipes []*io.PipeWriter) (err error) {
+	if stack[0].Process == nil {
+		if err = stack[0].Start(); err != nil {
+			return err
+		}
+	}
+	if len(stack) > 1 {
+		if err = stack[1].Start(); err != nil {
+			return err
+		}
+		defer func() {
+			if err == nil {
+				pipes[0].Close()
+				err = call(stack[1:], pipes[1:])
+			}
+		}()
+	}
+	return stack[0].Wait()
+}
+
+func main() {
+	var b1 bytes.Buffer
+	if err := Execute(&b1,
+		exec.Command("qubes-pass-client", "list", "-f"),
+		exec.Command("tail", "-n", "+2"),
+		exec.Command("zenity", "--list", "--title", "Select a Password", "--column", "Password"),
+	); err != nil {
+		log.Fatalln(err)
+	}
+	selection := b1.String()
+	//io.Copy(os.Stdout, &b1)
+
+	var b2 bytes.Buffer
+	if err := Execute(&b2,
+		exec.Command("qubes-pass-client", "show", selection),
+		exec.Command("sed", "2q;d"),
+		exec.Command("timeout", "--preserve-status", "9", "xclip", "-quiet", "-loops", "1"),
+	); err != nil {
+		log.Fatalln(err)
+	}
+	b2.WriteString("pass paste complete")
+	io.Copy(os.Stdout, &b2)
+}