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|
# This module defines global configuration for the xonsh.
{
config,
lib,
pkgs,
...
}:
let
cfg = config.programs.xonsh;
package = cfg.package.override { inherit (cfg) extraPackages; };
bashCompletionPath = "${cfg.bashCompletion.package}/share/bash-completion/bash_completion";
in
{
options = {
programs.xonsh = {
enable = lib.mkOption {
default = false;
description = ''
Whether to configure xonsh as an interactive shell.
'';
type = lib.types.bool;
};
package = lib.mkPackageOption pkgs "xonsh" {
extraDescription = ''
The argument `extraPackages` of this package will be overridden by
the option `programs.xonsh.extraPackages`.
'';
};
config = lib.mkOption {
default = "";
description = ''
Extra text added to the end of `/etc/xonsh/xonshrc`,
the system-wide control file for xonsh.
'';
type = lib.types.lines;
};
extraPackages = lib.mkOption {
default = (ps: [ ]);
defaultText = lib.literalExpression "ps: [ ]";
example = lib.literalExpression ''
ps: with ps; [ numpy xonsh.xontribs.xontrib-vox ]
'';
type =
with lib.types;
coercedTo (listOf lib.types.package) (v: (_: v)) (functionTo (listOf lib.types.package));
description = ''
Xontribs and extra Python packages to be available in xonsh.
'';
};
bashCompletion = {
enable = lib.mkEnableOption "bash completions for xonsh" // {
default = true;
};
package = lib.mkPackageOption pkgs "bash-completion" { };
};
};
};
config = lib.mkIf cfg.enable {
environment.etc."xonsh/xonshrc".text = ''
# /etc/xonsh/xonshrc: DO NOT EDIT -- this file has been generated automatically.
if not ''${...}.get('__NIXOS_SET_ENVIRONMENT_DONE'):
# The NixOS environment and thereby also $PATH
# haven't been fully set up at this point. But
# `source-bash` below requires `bash` to be on $PATH,
# so add an entry with bash's location:
$PATH.add('${pkgs.bash}/bin')
# Stash xonsh's ls alias, so that we don't get a collision
# with Bash's ls alias from environment.shellAliases:
_ls_alias = aliases.pop('ls', None)
# Source the NixOS environment config.
source-bash "${config.system.build.setEnvironment}"
# Restore xonsh's ls alias, overriding that from Bash (if any).
if _ls_alias is not None:
aliases['ls'] = _ls_alias
del _ls_alias
${lib.optionalString cfg.bashCompletion.enable "$BASH_COMPLETIONS = '${bashCompletionPath}'"}
${cfg.config}
'';
environment.systemPackages = [ package ];
environment.shells = [
"/run/current-system/sw/bin/xonsh"
"${lib.getExe package}"
];
};
}
|
