92 lines
2.5 KiB
Nix
92 lines
2.5 KiB
Nix
# This module defines global configuration for the Bash shell, in
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# particular /etc/bashrc and /etc/profile.
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{ config, pkgs, ... }:
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with pkgs.lib;
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let
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initBashCompletion = optionalString config.environment.enableBashCompletion ''
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# Check whether we're running a version of Bash that has support for
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# programmable completion. If we do, enable all modules installed in
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# the system (and user profile).
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if shopt -q progcomp &>/dev/null; then
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. "${pkgs.bashCompletion}/etc/profile.d/bash_completion.sh"
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nullglobStatus=$(shopt -p nullglob)
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shopt -s nullglob
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for p in $NIX_PROFILES; do
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for m in "$p/etc/bash_completion.d/"*; do
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. $m
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done
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done
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eval "$nullglobStatus"
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unset nullglobStatus p m
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fi
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'';
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options = {
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environment.shellInit = mkOption {
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default = "";
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example = ''export PATH=/godi/bin/:$PATH'';
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description = "
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Script used to initialized user shell environments.
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";
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type = with pkgs.lib.types; string;
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};
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environment.enableBashCompletion = mkOption {
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default = false;
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description = "Enable bash-completion for all interactive shells.";
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type = with pkgs.lib.types; bool;
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};
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};
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in
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{
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require = [options];
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environment.etc =
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[ { # Script executed when the shell starts as a login shell.
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source = pkgs.substituteAll {
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src = ./profile.sh;
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wrapperDir = config.security.wrapperDir;
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shellInit = config.environment.shellInit;
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};
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target = "profile";
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}
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{ # /etc/bashrc: executed every time a bash starts. Sources
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# /etc/profile to ensure that the system environment is
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# configured properly.
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source = pkgs.substituteAll {
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src = ./bashrc.sh;
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inherit initBashCompletion;
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};
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target = "bashrc";
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}
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{ # Configuration for readline in bash.
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source = ./inputrc;
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target = "inputrc";
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}
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];
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system.build.binsh = pkgs.bashInteractive;
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system.activationScripts.binsh = stringAfter [ "stdio" ]
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''
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# Create the required /bin/sh symlink; otherwise lots of things
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# (notably the system() function) won't work.
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mkdir -m 0755 -p /bin
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ln -sfn ${config.system.build.binsh}/bin/sh /bin/.sh.tmp
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mv /bin/.sh.tmp /bin/sh # atomically replace /bin/sh
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'';
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environment.pathsToLink = optional config.environment.enableBashCompletion "/etc/bash_completion.d";
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}
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