dotfiles/modules/programs/tmux/default.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.my.programs.tmux;
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tmux-switch = pkgs.writeShellApplication {
name = "tmux-switch";
runtimeInputs = with pkgs; [ tmux ];
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text = /* bash */ ''
if [[ -z ''${TMUX+x} ]]; then
tmux attach -t "$1"
else
tmux switch-client -t "$1"
fi
'';
};
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tmux-sessionizer = pkgs.writeFishApplication {
name = "ts";
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runtimeInputs = with pkgs; [ tmux findutils coreutils procps fd tmux-new gawk ];
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text = readFile ./tmux-sessionizer/script.fish;
completions = readFile ./tmux-sessionizer/completions.fish;
};
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tmux-attach = pkgs.writeFishApplication {
name = "ta";
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runtimeInputs = with pkgs; [ tmux tmux-switch ];
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text = readFile ./tmux-attach/script.fish;
completions = readFile ./tmux-attach/completions.fish;
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};
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tmux-new = pkgs.writeFishApplication {
name = "tn";
runtimeInputs = with pkgs; [ tmux ];
text = /* fish */ ''
if ! tmux has-session -t $argv[1] 2> /dev/null
tmux new-session -ds $argv[1] -c $argv[2]
end
tmux-switch $argv[1]
'';
};
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in
{
options.my.programs.tmux = {
enable = mkEnableOption "tmux";
autoAttach = mkEnableOption "autoAttach";
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keybinds = mkOption {
type = with types; attrsOf (attrsOf string);
default = { };
description = "Keybinds for tmux";
example = literalExample ''
{
prefix = {
"-" = "split-window -v";
"|" = "split-window -h";
};
copy-mode-vi = {
"v" = "send -X begin-selection";
};
}
'';
};
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};
config = mkIf cfg.enable {
my.shell.abbreviations.t = "tmux";
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home-manager.users.moritz.home.packages = [
tmux-sessionizer
tmux-attach
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tmux-switch
tmux-new
];
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home-manager.users.moritz.programs = {
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tmux = {
enable = true;
clock24 = true;
customPaneNavigationAndResize = true;
keyMode = "vi";
mouse = true;
prefix = "C-Space";
sensibleOnTop = false;
plugins = with pkgs.tmuxPlugins; [
sensible
tmux-fzf
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vim-tmux-navigator
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yank
];
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extraConfig =
let
mkKeybind = table: mapAttrsToList (keybind: value: "bind-key -T ${table} '${keybind}' ${value}");
keybinds = flatten (mapAttrsToList mkKeybind cfg.keybinds);
in
''
# Keybinds
${concatStringsSep "\n" keybinds}
'';
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};
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fzf.tmux.enableShellIntegration = true;
fish.interactiveShellInit =
let
insideVariables = [ "$TMUX" "$INSIDE_EMACS" "$EMACS" "$VIM" "$VSCODE_RESOLVING_ENVIRONMENT" ];
insideVariableMissing = concatStringsSep " && " (map (x: "test -z ${x}") insideVariables);
in
mkIf cfg.autoAttach
''
if ! fish_is_root_user && test "$TERM_PROGRAM" != 'vscode' && ${insideVariableMissing}
if test -z $tmux_autostarted
set -x tmux_autostarted true
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tn home ~
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end
end
'';
};
};
}