nixos-config/modules/alacritty.nix

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{ config, lib, pkgs, ... }:
# alacritty.yml is needed in both <current-system>/sw/etc/ and /etc/, or
# it won't work correctly in some environments (at least plasma+wayland)
# That's why it's in systemPackages AND environment.etc.
# (November 2021)
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let
cfg = config.sconfig.alacritty;
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configText = builtins.toJSON
{
env.TERM = "xterm-256color";
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font.size = 12;
colors = {
primary.background = "0x1e1e1e";
primary.foreground = "0xdddddd";
# Tango Dark
normal.black = "0x2e3436";
normal.red = "0xcc0000";
normal.green = "0x4e9a06";
normal.yellow = "0xc4a000";
normal.blue = "0x3465a4";
normal.magenta = "0x75507b";
normal.cyan = "0x06989a";
normal.white = "0xd3d7cf";
bright.black = "0x555753";
bright.red = "0xef2929";
bright.green = "0x8ae234";
bright.yellow = "0xfce94f";
bright.blue = "0x729fcf";
bright.magenta = "0xad7fa8";
bright.cyan = "0x34e2e2";
bright.white = "0xeeeeec";
};
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key_bindings = [
{ action = "ScrollHalfPageDown"; mods = "Shift"; key = "PageDown"; }
{ action = "ScrollHalfPageUp"; mods = "Shift"; key = "PageUp"; }
{ action = "SpawnNewInstance"; mods = "Control|Shift"; key = "N"; }
{ action = "SpawnNewInstance"; mods = "Control|Shift"; key = "T"; }
];
};
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in
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{
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options.sconfig.alacritty.enable = lib.mkEnableOption "Enable Alacritty";
config = lib.mkIf cfg.enable {
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environment.etc."xdg/alacritty.yml".text = configText;
environment.systemPackages = [
pkgs.alacritty
(pkgs.writeTextFile {
name = "alacritty.yml";
destination = "/etc/xdg/alacritty.yml";
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text = configText;
})
];
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programs.bash.interactiveShellInit = ''
function _set_title() {
printf "\033]0;%s@%s:%s\007" "''${USER}" "''${HOSTNAME%%.*}" "''${PWD/#$HOME/\~}"
}
[ -z "$VTE_VERSION" ] && PROMPT_COMMAND="_set_title; $PROMPT_COMMAND"
'';
};
}