nixos-config/nixos/modules/programs/shell-tools.nix

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{ config, pkgs, lib, ... }:
with lib;
let
xterm-colors = pkgs.writeShellScriptBin "256-xterm-colors"
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# sh
''
for i in {0..255} ; do
printf "\x1b[38;5;%sm%3d\e[0m " "$i" "$i"
if (( i == 15 )) || (( i > 15 )) && (( (i-15) % 6 == 0 )); then
printf "\n";
fi
done
'';
xterm-background-colors = pkgs.writeShellScriptBin
"256-xterm-colors-background"
# sh
''
for i in {0..255} ; do
printf "\x1b[48;5;%sm%3d\e[0m " "$i" "$i"
if (( i == 15 )) || (( i > 15 )) && (( (i-15) % 6 == 0 )); then
printf "\n";
fi
done
'';
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cfg = config.programs.custom.shellTools;
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in
{
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options.programs.custom.shellTools.enable =
mkEnableOption "enable shell tools";
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config = mkIf cfg.enable {
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environment.systemPackages = [ xterm-colors xterm-background-colors ];
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};
}