{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.zsh;
relToDotDir = file: (optionalString (cfg.dotDir != null) (cfg.dotDir + "/")) + file;
pluginsDir = if cfg.dotDir != null then
relToDotDir "plugins" else ".zsh/plugins";
envVarsStr = config.lib.zsh.exportAll cfg.sessionVariables;
localVarsStr = config.lib.zsh.defineAll cfg.localVariables;
aliasesStr = concatStringsSep "\n" (
mapAttrsToList (k: v: "alias ${k}=${lib.escapeShellArg v}") cfg.shellAliases
);
globalAliasesStr = concatStringsSep "\n" (
mapAttrsToList (k: v: "alias -g ${k}=${lib.escapeShellArg v}") cfg.shellGlobalAliases
);
zdotdir = "$HOME/" + cfg.dotDir;
bindkeyCommands = {
emacs = "bindkey -e";
viins = "bindkey -v";
vicmd = "bindkey -a";
};
stateVersion = config.home.stateVersion;
historyModule = types.submodule ({ config, ... }: {
options = {
size = mkOption {
type = types.int;
default = 10000;
description = "Number of history lines to keep.";
};
save = mkOption {
type = types.int;
defaultText = 10000;
default = config.size;
description = "Number of history lines to save.";
};
path = mkOption {
type = types.str;
default = if versionAtLeast stateVersion "20.03"
then "$HOME/.zsh_history"
else relToDotDir ".zsh_history";
example = literalExample ''"''${config.xdg.dataHome}/zsh/zsh_history"'';
description = "History file location";
};
ignoreDups = mkOption {
type = types.bool;
default = true;
description = ''
Do not enter command lines into the history list
if they are duplicates of the previous event.
'';
};
ignoreSpace = mkOption {
type = types.bool;
default = true;
description = ''
Do not enter command lines into the history list
if the first character is a space.
'';
};
expireDuplicatesFirst = mkOption {
type = types.bool;
default = false;
description = "Expire duplicates first.";
};
extended = mkOption {
type = types.bool;
default = false;
description = "Save timestamp into the history file.";
};
share = mkOption {
type = types.bool;
default = true;
description = "Share command history between zsh sessions.";
};
};
});
pluginModule = types.submodule ({ config, ... }: {
options = {
src = mkOption {
type = types.path;
description = ''
Path to the plugin folder.
Will be added to <envar>fpath</envar> and <envar>PATH</envar>.
'';
};
name = mkOption {
type = types.str;
description = ''
The name of the plugin.
Don't forget to add <option>file</option>
if the script name does not follow convention.
'';
};
file = mkOption {
type = types.str;
description = "The plugin script to source.";
};
};
config.file = mkDefault "${config.name}.plugin.zsh";
});
ohMyZshModule = types.submodule {
options = {
enable = mkEnableOption "oh-my-zsh";
plugins = mkOption {
default = [];
example = [ "git" "sudo" ];
type = types.listOf types.str;
description = ''
List of oh-my-zsh plugins
'';
};
custom = mkOption {
default = "";
type = types.str;
example = "$HOME/my_customizations";
description = ''
Path to a custom oh-my-zsh package to override config of
oh-my-zsh. See <link xlink:href="https://github.com/robbyrussell/oh-my-zsh/wiki/Customization"/>
for more information.
'';
};
theme = mkOption {
default = "";
example = "robbyrussell";
type = types.str;
description = ''
Name of the theme to be used by oh-my-zsh.
'';
};
extraConfig = mkOption {
default = "";
example = ''
zstyle :omz:plugins:ssh-agent identities id_rsa id_rsa2 id_github
'';
type = types.lines;
description = ''
Extra settings for plugins.
'';
};
};
};
in
{
options = {
programs.zsh = {
enable = mkEnableOption "Z shell (Zsh)";
autocd = mkOption {
default = null;
description = ''
Automatically enter into a directory if typed directly into shell.
'';
type = types.nullOr types.bool;
};
cdpath = mkOption {
default = [];
description = ''
List of paths to autocomplete calls to `cd`.
'';
type = types.listOf types.str;
};
dotDir = mkOption {
default = null;
example = ".config/zsh";
description = ''
Directory where the zsh configuration and more should be located,
relative to the users home directory. The default is the home
directory.
'';
type = types.nullOr types.str;
};
shellAliases = mkOption {
default = {};
example = literalExample ''
{
ll = "ls -l";
".." = "cd ..";
}
'';
description = ''
An attribute set that maps aliases (the top level attribute names in
this option) to command strings or directly to build outputs.
'';
type = types.attrsOf types.str;
};
shellGlobalAliases = mkOption {
default = {};
example = literalExample ''
{
UUID = "$(uuidgen | tr -d \\n)";
G = "| grep";
}
'';
description = ''
Similar to <varname><link linkend="opt-programs.zsh.shellAliases">opt-programs.zsh.shellAliases</link></varname>,
but are substituted anywhere on a line.
'';
type = types.attrsOf types.str;
};
enableCompletion = mkOption {
default = true;
description = ''
Enable zsh completion. Don't forget to add
<programlisting language="nix">
environment.pathsToLink = [ "/share/zsh" ];
</programlisting>
to your system configuration to get completion for system packages (e.g. systemd).
'';
type = types.bool;
};
enableAutosuggestions = mkOption {
default = false;
description = "Enable zsh autosuggestions";
};
history = mkOption {
type = historyModule;
default = {};
description = "Options related to commands history configuration.";
};
defaultKeymap = mkOption {
type = types.nullOr (types.enum (attrNames bindkeyCommands));
default = null;
example = "emacs";
description = "The default base keymap to use.";
};
sessionVariables = mkOption {
default = {};
type = types.attrs;
example = { MAILCHECK = 30; };
description = "Environment variables that will be set for zsh session.";
};
initExtraBeforeCompInit = mkOption {
default = "";
type = types.lines;
description = "Extra commands that should be added to <filename>.zshrc</filename> before compinit.";
};
initExtra = mkOption {
default = "";
type = types.lines;
description = "Extra commands that should be added to <filename>.zshrc</filename>.";
};
envExtra = mkOption {
default = "";
type = types.lines;
description = "Extra commands that should be added to <filename>.zshenv</filename>.";
};
profileExtra = mkOption {
default = "";
type = types.lines;
description = "Extra commands that should be added to <filename>.zprofile</filename>.";
};
loginExtra = mkOption {
default = "";
type = types.lines;
description = "Extra commands that should be added to <filename>.zlogin</filename>.";
};
logoutExtra = mkOption {
default = "";
type = types.lines;
description = "Extra commands that should be added to <filename>.zlogout</filename>.";
};
plugins = mkOption {
type = types.listOf pluginModule;
default = [];
example = literalExample ''
[
{
# will source zsh-autosuggestions.plugin.zsh
name = "zsh-autosuggestions";
src = pkgs.fetchFromGitHub {
owner = "zsh-users";
repo = "zsh-autosuggestions";
rev = "v0.4.0";
sha256 = "0z6i9wjjklb4lvr7zjhbphibsyx51psv50gm07mbb0kj9058j6kc";
};
}
{
name = "enhancd";
file = "init.sh";
src = pkgs.fetchFromGitHub {
owner = "b4b4r07";
repo = "enhancd";
rev = "v2.2.1";
sha256 = "0iqa9j09fwm6nj5rpip87x3hnvbbz9w9ajgm6wkrd5fls8fn8i5g";
};
}
]
'';
description = "Plugins to source in <filename>.zshrc</filename>.";
};
oh-my-zsh = mkOption {
type = ohMyZshModule;
default = {};
description = "Options to configure oh-my-zsh.";
};
localVariables = mkOption {
type = types.attrs;
default = {};
example = { POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=["dir" "vcs"]; };
description = ''
Extra local variables defined at the top of <filename>.zshrc</filename>.
'';
};
};
};
config = mkIf cfg.enable (mkMerge [
(mkIf (cfg.envExtra != "") {
home.file."${relToDotDir ".zshenv"}".text = cfg.envExtra;
})
(mkIf (cfg.profileExtra != "") {
home.file."${relToDotDir ".zprofile"}".text = cfg.profileExtra;
})
(mkIf (cfg.loginExtra != "") {
home.file."${relToDotDir ".zlogin"}".text = cfg.loginExtra;
})
(mkIf (cfg.logoutExtra != "") {
home.file."${relToDotDir ".zlogout"}".text = cfg.logoutExtra;
})
(mkIf cfg.oh-my-zsh.enable {
home.file."${relToDotDir ".zshenv"}".text = ''
ZSH="${pkgs.oh-my-zsh}/share/oh-my-zsh";
ZSH_CACHE_DIR="${config.xdg.cacheHome}/oh-my-zsh";
'';
})
(mkIf (cfg.dotDir != null) {
home.file."${relToDotDir ".zshenv"}".text = ''
ZDOTDIR=${zdotdir}
'';
# When dotDir is set, only use ~/.zshenv to source ZDOTDIR/.zshenv,
# This is so that if ZDOTDIR happens to be
# already set correctly (by e.g. spawning a zsh inside a zsh), all env
# vars still get exported
home.file.".zshenv".text = ''
source ${zdotdir}/.zshenv
'';
})
{
home.packages = with pkgs; [ zsh ]
++ optional cfg.enableCompletion nix-zsh-completions
++ optional cfg.oh-my-zsh.enable oh-my-zsh;
home.file."${relToDotDir ".zshrc"}".text = ''
typeset -U path cdpath fpath manpath
${optionalString (cfg.cdpath != []) ''
cdpath+=(${concatStringsSep " " cfg.cdpath})
''}
for profile in ''${(z)NIX_PROFILES}; do
fpath+=($profile/share/zsh/site-functions $profile/share/zsh/$ZSH_VERSION/functions $profile/share/zsh/vendor-completions)
done
HELPDIR="${pkgs.zsh}/share/zsh/$ZSH_VERSION/help"
${optionalString (cfg.defaultKeymap != null) ''
# Use ${cfg.defaultKeymap} keymap as the default.
${getAttr cfg.defaultKeymap bindkeyCommands}
''}
${localVarsStr}
${cfg.initExtraBeforeCompInit}
${concatStrings (map (plugin: ''
path+="$HOME/${pluginsDir}/${plugin.name}"
fpath+="$HOME/${pluginsDir}/${plugin.name}"
'') cfg.plugins)}
# Oh-My-Zsh calls compinit during initialization,
# calling it twice causes sight start up slowdown
# as all $fpath entries will be traversed again.
${optionalString (cfg.enableCompletion && !cfg.oh-my-zsh.enable)
"autoload -U compinit && compinit"
}
${optionalString cfg.enableAutosuggestions
"source ${pkgs.zsh-autosuggestions}/share/zsh-autosuggestions/zsh-autosuggestions.zsh"
}
# Environment variables
. "${config.home.profileDirectory}/etc/profile.d/hm-session-vars.sh"
${envVarsStr}
${optionalString cfg.oh-my-zsh.enable ''
# oh-my-zsh extra settings for plugins
${cfg.oh-my-zsh.extraConfig}
# oh-my-zsh configuration generated by NixOS
${optionalString (cfg.oh-my-zsh.plugins != [])
"plugins=(${concatStringsSep " " cfg.oh-my-zsh.plugins})"
}
${optionalString (cfg.oh-my-zsh.custom != "")
"ZSH_CUSTOM=\"${cfg.oh-my-zsh.custom}\""
}
${optionalString (cfg.oh-my-zsh.theme != "")
"ZSH_THEME=\"${cfg.oh-my-zsh.theme}\""
}
source $ZSH/oh-my-zsh.sh
''}
${concatStrings (map (plugin: ''
if [ -f "$HOME/${pluginsDir}/${plugin.name}/${plugin.file}" ]; then
source "$HOME/${pluginsDir}/${plugin.name}/${plugin.file}"
fi
'') cfg.plugins)}
# History options should be set in .zshrc and after oh-my-zsh sourcing.
# See https://github.com/rycee/home-manager/issues/177.
HISTSIZE="${toString cfg.history.size}"
SAVEHIST="${toString cfg.history.save}"
${if versionAtLeast config.home.stateVersion "20.03"
then ''HISTFILE="${cfg.history.path}"''
else ''HISTFILE="$HOME/${cfg.history.path}"''}
mkdir -p "$(dirname "$HISTFILE")"
setopt HIST_FCNTL_LOCK
${if cfg.history.ignoreDups then "setopt" else "unsetopt"} HIST_IGNORE_DUPS
${if cfg.history.ignoreSpace then "setopt" else "unsetopt"} HIST_IGNORE_SPACE
${if cfg.history.expireDuplicatesFirst then "setopt" else "unsetopt"} HIST_EXPIRE_DUPS_FIRST
${if cfg.history.share then "setopt" else "unsetopt"} SHARE_HISTORY
${if cfg.history.extended then "setopt" else "unsetopt"} EXTENDED_HISTORY
${if cfg.autocd != null then "${if cfg.autocd then "setopt" else "unsetopt"} autocd" else ""}
${cfg.initExtra}
# Aliases
${aliasesStr}
# Global Aliases
${globalAliasesStr}
'';
}
(mkIf cfg.oh-my-zsh.enable {
# Make sure we create a cache directory since some plugins expect it to exist
# See: https://github.com/rycee/home-manager/issues/761
home.file."${config.xdg.cacheHome}/oh-my-zsh/.keep".text = "";
})
(mkIf (cfg.plugins != []) {
# Many plugins require compinit to be called
# but allow the user to opt out.
programs.zsh.enableCompletion = mkDefault true;
home.file =
foldl' (a: b: a // b) {}
(map (plugin: { "${pluginsDir}/${plugin.name}".source = plugin.src; })
cfg.plugins);
})
]);
}
