33 lines
1021 B
Nix
33 lines
1021 B
Nix
{ pkgs, ... }:
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let
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# Based on https://unix.stackexchange.com/questions/16578/resizable-serial-console-window
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resize = pkgs.writeShellScriptBin "resize" ''
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export PATH=${pkgs.coreutils}/bin
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if [ ! -t 0 ]; then
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# not a interactive...
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exit 0
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fi
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TTY="$(tty)"
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if [[ "$TTY" != /dev/ttyS* ]] && [[ "$TTY" != /dev/ttyAMA* ]] && [[ "$TTY" != /dev/ttySIF* ]]; then
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# probably not a known serial console, we could make this check more
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# precise by using `setserial` but this would require some additional
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# dependency
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exit 0
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fi
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old=$(stty -g)
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stty raw -echo min 0 time 5
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printf '\0337\033[r\033[999;999H\033[6n\0338' > /dev/tty
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IFS='[;R' read -r _ rows cols _ < /dev/tty
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stty "$old"
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stty cols "$cols" rows "$rows"
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'';
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in
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{
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environment.loginShellInit = "${resize}/bin/resize";
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# default is something like vt220... however we want to get alt least some colors...
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systemd.services."serial-getty@".environment.TERM = "xterm-256color";
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}
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