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|
{
lib,
config,
pkgs,
...
}:
let
cfg = config.programs.direnv;
enabledOption =
x:
lib.mkEnableOption x
// {
default = true;
example = false;
};
format = pkgs.formats.toml { };
in
{
imports = [
(lib.mkRemovedOptionModule [ "programs" "direnv" "finalPackage" ]
"programs.direnv.finalPackage has been removed now, as its value is identical to programs.direnv.package."
)
];
options.programs.direnv = {
enable = lib.mkEnableOption ''
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" { };
enableBashIntegration = enabledOption ''
Bash integration
'';
enableZshIntegration = enabledOption ''
Zsh integration
'';
enableFishIntegration = enabledOption ''
Fish integration
'';
enableXonshIntegration = enabledOption ''
Xonsh integration
'';
direnvrcExtra = lib.mkOption {
type = lib.types.lines;
default = "";
example = ''
export FOO="foo"
echo "loaded direnv!"
'';
description = ''
Extra lines to append to the sourced direnvrc
'';
};
silent = lib.mkEnableOption ''
the hiding of direnv logging
'';
loadInNixShell = enabledOption ''
loading direnv in `nix-shell` `nix shell` or `nix develop`
'';
nix-direnv = {
enable = enabledOption ''
a faster, persistent implementation of use_nix and use_flake, to replace the builtin one
'';
package = lib.mkOption {
default = pkgs.nix-direnv.override { nix = config.nix.package; };
defaultText = "pkgs.nix-direnv";
type = lib.types.package;
description = ''
The nix-direnv package to use
'';
};
};
settings = lib.mkOption {
inherit (format) type;
default = { };
example = lib.literalExpression ''
{
global = {
log_format = "-";
log_filter = "^$";
};
}
'';
description = ''
Direnv configuration. Refer to {manpage}`direnv.toml(1)`.
'';
};
};
config = lib.mkIf cfg.enable {
programs = {
direnv = {
settings = lib.mkIf cfg.silent {
global = {
log_format = lib.mkDefault "-";
log_filter = lib.mkDefault "^$";
};
};
};
zsh.interactiveShellInit = lib.mkIf cfg.enableZshIntegration ''
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 = lib.mkIf cfg.enableBashIntegration ''
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 = lib.mkIf cfg.enableFishIntegration ''
if ${lib.boolToString cfg.loadInNixShell}; or printenv PATH | grep -vqc '/nix/store';
${lib.getExe cfg.package} hook fish | source
end
'';
xonsh = lib.mkIf cfg.enableXonshIntegration {
extraPackages = ps: [ ps.xonsh.xontribs.xonsh-direnv ];
config = ''
if ${
if cfg.loadInNixShell then
"True"
else
"not any(map(lambda s: s.startswith('/nix/store'), __xonsh__.env.get('PATH')))"
}:
xontrib load direnv
'';
};
};
environment = {
systemPackages = [
cfg.package
];
variables.DIRENV_CONFIG = "/etc/direnv";
etc = {
"direnv/direnv.toml" = lib.mkIf (cfg.settings != { }) {
source = format.generate "direnv.toml" cfg.settings;
};
"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
'';
};
};
};
meta.maintainers = with lib.maintainers; [ gerg-l ];
}
|
