blob: 1dc7b63bf422147e36b6060799bc3ce44470481d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
# /etc/bash/bashrc.d/10-gentoo-title.bash
# For information regarding the control sequences used, please refer to
# https://invisible-island.net/xterm/ctlseqs/ctlseqs.html.
genfun_set_win_title() {
# Advertise the fact that the presently running interactive shell will
# update the title. Doing so allows for its subprocesses to determine
# whether it is safe to set the title of their own accord. Note that 0
# refers to the value of Ps within the OSC Ps ; Pt BEL sequence.
export SHELL_SETS_TITLE=0
# Assigns the basename of the current working directory, having
# sanitised it with @Q parameter expansion. Useful for paths containing
# newlines and such. As a special case, names consisting entirely of
# graphemes shall not undergo the expansion, for reasons of cleanliness.
genfun_sanitise_cwd() {
_cwd=${PWD##*/}
if [[ ! ${_cwd} ]]; then
_cwd=${PWD}
elif [[ ${_cwd} == *[![:graph:]]* ]]; then
_cwd=${_cwd@Q}
fi
}
# Sets the window title with the Set Text Parameters control sequence.
# For screen, the sequence defines the hardstatus (%h) and for tmux, the
# pane_title (#T). For graphical terminal emulators, it is normal for
# the title bar to be affected.
genfun_set_win_title() {
genfun_sanitise_cwd
printf '\033]0;%s@%s - %s\007' "${USER}" "${HOSTNAME%%.*}" "${_cwd}"
}
genfun_set_win_title
}
unset -v SHELL_SETS_TITLE
# Determine whether the terminal can handle the Set Text Parameters sequence.
# The only terminals permitted here are those for which there is empirical
# evidence that the sequence is supported and that the UTF-8 character encoding
# is handled correctly. Quite rightly, this precludes many vintage terminals.
case ${TERM} in
screen*|tmux*)
;;
alacritty|foot*)
# The terminal emulator also supports XTWINOPS. If the PTY was
# created by sshd(8) then push the current window title to the
# stack and arrange for it to be popped upon exiting. Xterm also
# supports this but there are far too many terminal emulators
# that falsely identify as being xterm-compatible.
if [[ ${SSH_TTY} && ${SSH_TTY} == "$(tty)" ]]; then
trap 'printf "\033[23;0t"' EXIT
printf '\033[22;0t'
fi
;;
rxvt-unicode*|st-256color|xterm*)
# If the PTY was created by sshd(8) then proceed no further.
# Alas, there exist many operating environments in which the
# title would otherwise not be restored upon ssh(1) exiting.
# Those wanting for the title to be set regardless may adjust
# ~/.bashrc or create a bashrc.d drop-in to set PROMPT_COMMAND.
# For example, PROMPT_COMMAND=(genfun_set_win_title).
if [[ ${SSH_TTY} && ${SSH_TTY} == "$(tty)" ]]; then
return
fi
;;
*)
return
esac
# Arrange for the title to be updated each time the primary prompt is displayed.
PROMPT_COMMAND+=('genfun_set_win_title')
|
GitWeb
