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fix: option to disable resize of dumb consoles

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Relevant when using "xl console".
This commit is contained in:
Ben Grande 2024-07-16 16:57:14 +02:00
parent f705616ed4
commit 7e2502b70a
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GPG Key ID: 00C64E14F51F9E56
1 changed files with 11 additions and 7 deletions
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18
files/sh/.local/bin/resize-terminal
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@ -9,12 +9,16 @@
## Resize terminal columns and lines to current window size. ## Resize terminal columns and lines to current window size.
## Useful for terminals over link (serial console, socat's pty etc). ## Useful for terminals over link (serial console, socat's pty etc).
test -t 0 || exit if test -n "${TERM_RESIZE_DISABLE:-}"; then
exit 0
fi
test -t 0 || exit 0
## If argument is provided, allow user to bypass tty check. ## If argument is provided, allow user to bypass tty check.
if test "${#}" -eq 0; then if test "${#}" -eq 0; then
## Shells on graphical sessions (terminal emulators) are skipped. ## Shells on graphical sessions (terminal emulators) are skipped.
test "${XDG_SESSION_TYPE:-}" = "tty" || exit test "${XDG_SESSION_TYPE:-}" = "tty" || exit 0
## Serial ports and devices are desired. ## Serial ports and devices are desired.
term_file="$(tty)" term_file="$(tty)"
term_file_wanted="ttyUSB ttyS" term_file_wanted="ttyUSB ttyS"
@ -35,7 +39,7 @@ if test "${#}" -eq 0; then
## Terminal can handle screen resizing by itself. ## Terminal can handle screen resizing by itself.
if test "${term_file_active}" = "0"; then if test "${term_file_active}" = "0"; then
unset term_file_active unset term_file_active
exit exit 0
fi fi
unset term_file_active unset term_file_active
fi fi
@ -47,7 +51,7 @@ if ! echo R | read -r -t 1 -sd R 2>/dev/null; then
if has resize; then if has resize; then
resize_cmd="$(resize)" resize_cmd="$(resize)"
eval "${resize_cmd}" >/dev/null eval "${resize_cmd}" >/dev/null
exit exit 0
fi fi
## Slow due to heavy stty calls. ## Slow due to heavy stty calls.
termios="$(stty -g)" termios="$(stty -g)"
@ -56,7 +60,7 @@ if ! echo R | read -r -t 1 -sd R 2>/dev/null; then
IFS='[;R' read -r _ rows cols _ </dev/tty IFS='[;R' read -r _ rows cols _ </dev/tty
stty "${termios}" cols "${cols}" rows "${rows}" stty "${termios}" cols "${cols}" rows "${rows}"
unset termios unset termios
exit exit 0
fi fi
## Non-POSIX compliant and fast. ## Non-POSIX compliant and fast.
@ -73,11 +77,11 @@ IFS='[;R' read -r -t 1 -s -d R _ rows cols _ </dev/tty || {
if test "${COLUMNS}" = "${cols}" && test "${LINES}" = "${rows}";then if test "${COLUMNS}" = "${cols}" && test "${LINES}" = "${rows}";then
stty echo stty echo
unset rows cols unset rows cols
exit exit 0
elif test "${rows}" -gt 0 && test "${cols}" -gt 0;then elif test "${rows}" -gt 0 && test "${cols}" -gt 0;then
stty echo cols "${cols}" rows "${rows}" stty echo cols "${cols}" rows "${rows}"
unset rows cols unset rows cols
exit exit 0
fi fi
echo "error: cannot resize screen: unsupported terminal emulator" >&2 echo "error: cannot resize screen: unsupported terminal emulator" >&2