znt-usetty-wrapper

 1emulate -L zsh
 2
 3zmodload zsh/curses
 4
 5test_fd0() {
 6    true <&0
 7}
 8
 9local restore=0 FD
10
11# Reattach to terminal
12if [ ! -t 0 ]; then
13    # Check if can reattach to terminal in any way
14    if [[ ! -c /dev/tty && ! -t 2 ]]; then
15        echo "No terminal available (no /dev/tty and no terminal at stderr)"
16        return 1
17    fi
18
19    if test_fd0 2>/dev/null; then
20        exec {FD}<&0
21        restore=2
22    else
23        restore=1
24    fi
25
26    if [[ ! -c /dev/tty ]]; then
27        exec <&2
28    else
29        exec </dev/tty
30    fi
31fi
32
33# Run the command
34"$@"
35
36# Restore FD state
37(( restore == 1 )) && exec <&-
38(( restore == 2 )) && exec <&$FD && exec {FD}<&-
39
40# vim: set filetype=zsh: