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home-manager/modules/programs/starship.nix
polykernel c7592b747b
treewide: prefer XDG variables over dot directories
Currently, dot directories and XDG base directories are used
inconsistently in the Home Manager option declarations. This creates
ambiguity for the user as to where the location of the file should be
albeit this is rarely encountered in practice as it is sufficient to
read upstream documentation. The rationale is to make declarations
consistent and make a clear distinction between hardcoded and modular
specifications.

References to ~/.config in relevant nixpkgs modules were untouched as
the location is hardcoded upstream[1]. Furthermore, modules of
programs which do not follow XDG specifications were also untouched.

Generalization of tilde(~) expansions to $HOME were also considered,
however there isn't sufficient rationale despite the use of $HOME
being more universal. The expansion is standardized in POSIX[2] and is
essentially portable across all shells, thus there is no pragmatic
value to introducing the change.

[1] https://github.com/nixos/nixpkgs/blob/master/pkgs/top-level/impure.nix
[2] https://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_01
2021-12-10 23:51:44 +01:00

111 lines
2.9 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.starship;
tomlFormat = pkgs.formats.toml { };
starshipCmd = "${config.home.profileDirectory}/bin/starship";
in {
meta.maintainers = [ maintainers.marsam ];
options.programs.starship = {
enable = mkEnableOption "starship";
package = mkOption {
type = types.package;
default = pkgs.starship;
defaultText = literalExpression "pkgs.starship";
description = "The package to use for the starship binary.";
};
settings = mkOption {
type = with types;
let
prim = either bool (either int str);
primOrPrimAttrs = either prim (attrsOf prim);
entry = either prim (listOf primOrPrimAttrs);
entryOrAttrsOf = t: either entry (attrsOf t);
entries = entryOrAttrsOf (entryOrAttrsOf entry);
in attrsOf entries // { description = "Starship configuration"; };
default = { };
example = literalExpression ''
{
add_newline = false;
format = lib.concatStrings [
"$line_break"
"$package"
"$line_break"
"$character"
];
scan_timeout = 10;
character = {
success_symbol = "";
error_symbol = "";
};
}
'';
description = ''
Configuration written to
<filename>$XDG_CONFIG_HOME/starship.toml</filename>.
</para><para>
See <link xlink:href="https://starship.rs/config/" /> for the full list
of options.
'';
};
enableBashIntegration = mkOption {
default = true;
type = types.bool;
description = ''
Whether to enable Bash integration.
'';
};
enableZshIntegration = mkOption {
default = true;
type = types.bool;
description = ''
Whether to enable Zsh integration.
'';
};
enableFishIntegration = mkOption {
default = true;
type = types.bool;
description = ''
Whether to enable Fish integration.
'';
};
};
config = mkIf cfg.enable {
home.packages = [ cfg.package ];
xdg.configFile."starship.toml" = mkIf (cfg.settings != { }) {
source = tomlFormat.generate "starship-config" cfg.settings;
};
programs.bash.initExtra = mkIf cfg.enableBashIntegration ''
if [[ $TERM != "dumb" && (-z $INSIDE_EMACS || $INSIDE_EMACS == "vterm") ]]; then
eval "$(${starshipCmd} init bash)"
fi
'';
programs.zsh.initExtra = mkIf cfg.enableZshIntegration ''
if [[ $TERM != "dumb" && (-z $INSIDE_EMACS || $INSIDE_EMACS == "vterm") ]]; then
eval "$(${starshipCmd} init zsh)"
fi
'';
programs.fish.interactiveShellInit = mkIf cfg.enableFishIntegration ''
if test "$TERM" != "dumb" -a \( -z "$INSIDE_EMACS" -o "$INSIDE_EMACS" = "vterm" \)
eval (${starshipCmd} init fish)
end
'';
};
}