clipboard_text_command.go RawHistoryFolder

1package tui
2
3import (
4	"context"
5	"errors"
6	"os/exec"
7	"strings"
8	"time"
9)
10
11type clipboardTextCommand struct {
12	name string
13	args []string
14}
15
16var errClipboardCommandUnavailable = errors.New("no supported clipboard command found")
17
18// readClipboardTextCommands tries each installed command in order. Command
19// stdout is the clipboard payload and is never included in returned errors.
20func readClipboardTextCommands(commands ...clipboardTextCommand) (string, bool, error) {
21	var lastErr error
22	found := false
23	for _, candidate := range commands {
24		path, err := exec.LookPath(candidate.name)
25		if err != nil {
26			continue
27		}
28		found = true
29		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
30		out, err := exec.CommandContext(ctx, path, candidate.args...).Output()
31		cancel()
32		if err != nil {
33			lastErr = err
34			continue
35		}
36		if len(out) == 0 {
37			return "", false, nil
38		}
39		return string(out), true, nil
40	}
41	if !found {
42		return "", false, errClipboardCommandUnavailable
43	}
44	return "", false, lastErr
45}
46
47// writeClipboardTextCommands tries each installed command in order. Text is
48// supplied on stdin so it never becomes part of an executable command line.
49func writeClipboardTextCommands(ctx context.Context, text string, commands ...clipboardTextCommand) error {
50	var lastErr error
51	found := false
52	for _, candidate := range commands {
53		path, err := exec.LookPath(candidate.name)
54		if err != nil {
55			continue
56		}
57		found = true
58		commandCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
59		cmd := exec.CommandContext(commandCtx, path, candidate.args...)
60		cmd.Stdin = strings.NewReader(text)
61		err = cmd.Run()
62		cancel()
63		if err != nil {
64			lastErr = err
65			continue
66		}
67		return nil
68	}
69	if !found {
70		return errClipboardCommandUnavailable
71	}
72	return lastErr
73}