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|
{
lib,
config,
pkgs,
...
}: let
cfg = config.programs.direnv;
in {
options.programs.direnv = {
enable = lib.mkEnableOption (lib.mdDoc ''
direnv integration. Takes care of both installation and
setting up the sourcing of the shell. Additionally enables nix-direnv
integration. Note that you need to logout and login for this change to apply
'');
package = lib.mkPackageOption pkgs "direnv" {};
direnvrcExtra = lib.mkOption {
type = lib.types.lines;
default = "";
example = ''
export FOO="foo"
echo "loaded direnv!"
'';
description = lib.mdDoc ''
Extra lines to append to the sourced direnvrc
'';
};
silent = lib.mkEnableOption (lib.mdDoc ''
the hiding of direnv logging
'');
loadInNixShell =
lib.mkEnableOption (lib.mdDoc ''
loading direnv in `nix-shell` `nix shell` or `nix develop`
'')
// {
default = true;
};
nix-direnv = {
enable =
(lib.mkEnableOption (lib.mdDoc ''
a faster, persistent implementation of use_nix and use_flake, to replace the built-in one
''))
// {
default = true;
};
package = lib.mkOption {
default = pkgs.nix-direnv.override { nix = config.nix.package; };
defaultText = "pkgs.nix-direnv";
type = lib.types.package;
description = lib.mdDoc ''
The nix-direnv package to use
'';
};
};
};
imports = [
(lib.mkRemovedOptionModule ["programs" "direnv" "persistDerivations"] "persistDerivations was removed as it is no longer necessary")
];
config = lib.mkIf cfg.enable {
programs = {
zsh.interactiveShellInit = ''
if ${lib.boolToString cfg.loadInNixShell} || printenv PATH | grep -vqc '/nix/store'; then
eval "$(${lib.getExe cfg.package} hook zsh)"
fi
'';
#$NIX_GCROOT for "nix develop" https://github.com/NixOS/nix/blob/6db66ebfc55769edd0c6bc70fcbd76246d4d26e0/src/nix/develop.cc#L530
#$IN_NIX_SHELL for "nix-shell"
bash.interactiveShellInit = ''
if ${lib.boolToString cfg.loadInNixShell} || [ -z "$IN_NIX_SHELL$NIX_GCROOT$(printenv PATH | grep '/nix/store')" ] ; then
eval "$(${lib.getExe cfg.package} hook bash)"
fi
'';
fish.interactiveShellInit = ''
if ${lib.boolToString cfg.loadInNixShell};
or printenv PATH | grep -vqc '/nix/store';
${lib.getExe cfg.package} hook fish | source
end
'';
};
environment = {
systemPackages =
if cfg.loadInNixShell then [cfg.package]
else [
#direnv has a fish library which sources direnv for some reason
(cfg.package.overrideAttrs (old: {
installPhase =
(old.installPhase or "")
+ ''
rm -rf $out/share/fish
'';
}))
];
variables = {
DIRENV_CONFIG = "/etc/direnv";
DIRENV_LOG_FORMAT = lib.mkIf cfg.silent "";
};
etc = {
"direnv/direnvrc".text = ''
${lib.optionalString cfg.nix-direnv.enable ''
#Load nix-direnv
source ${cfg.nix-direnv.package}/share/nix-direnv/direnvrc
''}
#Load direnvrcExtra
${cfg.direnvrcExtra}
#Load user-configuration if present (~/.direnvrc or ~/.config/direnv/direnvrc)
direnv_config_dir_home="''${DIRENV_CONFIG_HOME:-''${XDG_CONFIG_HOME:-$HOME/.config}/direnv}"
if [[ -f $direnv_config_dir_home/direnvrc ]]; then
source "$direnv_config_dir_home/direnvrc" >&2
elif [[ -f $HOME/.direnvrc ]]; then
source "$HOME/.direnvrc" >&2
fi
unset direnv_config_dir_home
'';
"direnv/lib/zz-user.sh".text = ''
direnv_config_dir_home="''${DIRENV_CONFIG_HOME:-''${XDG_CONFIG_HOME:-$HOME/.config}/direnv}"
for lib in "$direnv_config_dir_home/lib/"*.sh; do
source "$lib"
done
unset direnv_config_dir_home
'';
};
};
};
}
|