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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.bash;
in
{
options = {
programs.bash.enable = mkOption {
type = types.bool;
default = true;
description = "Whether to configure bash as an interactive shell.";
};
programs.bash.interactiveShellInit = mkOption {
default = "";
description = "Shell script code called during interactive bash shell initialisation.";
type = types.lines;
};
programs.bash.enableCompletion = mkOption {
type = types.bool;
default = false;
description = ''
Enable bash completion for all interactive bash shells.
NOTE. This doesn't work with bash 3.2, which is the default on macOS.
'';
};
};
config = mkIf cfg.enable {
environment.systemPackages =
[ # Include bash package
pkgs.bashInteractive
] ++ optional cfg.enableCompletion pkgs.bash-completion;
environment.pathsToLink =
[ "/etc/bash_completion.d"
"/share/bash-completion/completions"
];
environment.loginShell = mkDefault "bash -l";
environment.variables.SHELL = mkDefault "${pkgs.bashInteractive}/bin/bash";
environment.etc."bashrc".text = ''
# /etc/bashrc: DO NOT EDIT -- this file has been generated automatically.
# This file is read for interactive shells.
# Make bash check its window size after a process completes
shopt -s checkwinsize
[ -r "/etc/bashrc_$TERM_PROGRAM" ] && . "/etc/bashrc_$TERM_PROGRAM"
# Only execute this file once per shell.
if [ -n "$__ETC_BASHRC_SOURCED" -o -n "$NOSYSBASHRC" ]; then return; fi
__ETC_BASHRC_SOURCED=1
# Don't execute this file when running in a pure nix-shell.
if test -n "$IN_NIX_SHELL"; then return; fi
export PATH=${config.environment.systemPath}
${config.system.build.setEnvironment.text}
${config.system.build.setAliases.text}
${config.environment.interactiveShellInit}
${cfg.interactiveShellInit}
${optionalString cfg.enableCompletion ''
source "${pkgs.bash-completion}/etc/profile.d/bash_completion.sh"
nullglobStatus=$(shopt -p nullglob)
shopt -s nullglob
for p in $NIX_PROFILES; do
for m in "$p/etc/bash_completion.d/"* "$p/share/bash-completion/completions/"*; do
source $m
done
done
eval "$nullglobStatus"
unset nullglobStatus p m
''}
# Read system-wide modifications.
if test -f /etc/bash.local; then
source /etc/bash.local
fi
'';
};
}
|
