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a1a7e7cd24
To determine if bash is running interactively test whether "$-" contains "i". See: https://www.gnu.org/software/bash/manual/html_node/Is-this-Shell-Interactive_003f.html
202 lines
5.1 KiB
Nix
202 lines
5.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.bash;
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in
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{
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meta.maintainers = [ maintainers.rycee ];
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options = {
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programs.bash = {
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enable = mkEnableOption "GNU Bourne-Again SHell";
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historySize = mkOption {
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type = types.int;
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default = 10000;
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description = "Number of history lines to keep in memory.";
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};
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historyFile = mkOption {
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type = types.str;
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default = "$HOME/.bash_history";
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description = "Location of the bash history file.";
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};
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historyFileSize = mkOption {
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type = types.int;
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default = 100000;
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description = "Number of history lines to keep on file.";
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};
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historyControl = mkOption {
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type = types.listOf (types.enum [
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"erasedups"
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"ignoredups"
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"ignorespace"
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]);
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default = [];
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description = "Controlling how commands are saved on the history list.";
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};
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historyIgnore = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [ "ls" "cd" "exit" ];
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description = "List of commands that should not be saved to the history list.";
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};
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shellOptions = mkOption {
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type = types.listOf types.str;
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default = [
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# Append to history file rather than replacing it.
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"histappend"
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# check the window size after each command and, if
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# necessary, update the values of LINES and COLUMNS.
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"checkwinsize"
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# Extended globbing.
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"extglob"
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"globstar"
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# Warn if closing shell with running jobs.
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"checkjobs"
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];
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description = "Shell options to set.";
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};
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sessionVariables = mkOption {
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default = {};
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type = types.attrs;
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example = { MAILCHECK = 30; };
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description = ''
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Environment variables that will be set for the Bash session.
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'';
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};
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shellAliases = mkOption {
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default = {};
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example = { ll = "ls -l"; ".." = "cd .."; };
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description = ''
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An attribute set that maps aliases (the top level attribute names in
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this option) to command strings or directly to build outputs.
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'';
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type = types.attrs;
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};
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enableAutojump = mkOption {
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default = false;
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type = types.bool;
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description = "Enable the autojump navigation tool.";
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};
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profileExtra = mkOption {
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default = "";
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type = types.lines;
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description = ''
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Extra commands that should be run when initializing a login
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shell.
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'';
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};
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bashrcExtra = mkOption {
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# Hide for now, may want to rename in the future.
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visible = false;
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default = "";
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type = types.lines;
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description = ''
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Extra commands that should be added to
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<filename>~/.bashrc</filename>.
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'';
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};
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initExtra = mkOption {
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default = "";
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type = types.lines;
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description = ''
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Extra commands that should be run when initializing an
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interactive shell.
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'';
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};
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};
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};
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config = (
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let
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aliasesStr = concatStringsSep "\n" (
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mapAttrsToList (k: v: "alias ${k}=${escapeShellArg v}") cfg.shellAliases
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);
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shoptsStr = concatStringsSep "\n" (
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map (v: "shopt -s ${v}") cfg.shellOptions
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);
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sessionVarsStr = config.lib.shell.exportAll cfg.sessionVariables;
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historyControlStr =
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concatStringsSep "\n" (mapAttrsToList (n: v: "${n}=${v}") (
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{
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HISTFILE = "\"${cfg.historyFile}\"";
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HISTFILESIZE = toString cfg.historyFileSize;
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HISTSIZE = toString cfg.historySize;
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}
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// optionalAttrs (cfg.historyControl != []) {
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HISTCONTROL = concatStringsSep ":" cfg.historyControl;
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}
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// optionalAttrs (cfg.historyIgnore != []) {
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HISTIGNORE = concatStringsSep ":" cfg.historyIgnore;
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}
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));
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in mkIf cfg.enable {
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programs.bash.bashrcExtra = ''
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# Commands that should be applied only for interactive shells.
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if [[ $- == *i* ]]; then
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${historyControlStr}
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${shoptsStr}
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${aliasesStr}
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${cfg.initExtra}
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${optionalString cfg.enableAutojump
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". ${pkgs.autojump}/share/autojump/autojump.bash"}
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fi
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'';
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home.file.".bash_profile".text = ''
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# -*- mode: sh -*-
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# include .profile if it exists
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[[ -f ~/.profile ]] && . ~/.profile
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# include .bashrc if it exists
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[[ -f ~/.bashrc ]] && . ~/.bashrc
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'';
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home.file.".profile".text = ''
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# -*- mode: sh -*-
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. "${config.home.profileDirectory}/etc/profile.d/hm-session-vars.sh"
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${sessionVarsStr}
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${cfg.profileExtra}
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'';
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home.file.".bashrc".text = ''
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# -*- mode: sh -*-
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${cfg.bashrcExtra}
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'';
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home.packages =
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optional (cfg.enableAutojump) pkgs.autojump;
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}
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);
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}
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