nix-config/modules/home/delta/default.nix

92 lines
2.2 KiB
Nix

{ config, pkgs, lib, ... }:
let
cfg = config.my.home.delta;
in
{
options.my.home.delta = with lib; {
enable = my.mkDisableOption "delta configuration";
package = mkPackageOption pkgs "delta" { };
git = {
enable = my.mkDisableOption "git integration";
};
jujutsu = {
enable = my.mkDisableOption "jujutsu integration";
};
};
config = lib.mkIf cfg.enable {
assertions = [
{
# For its configuration
assertion = cfg.enable -> cfg.git.enable;
message = ''
`config.my.home.delta` must enable `config.my.home.delta.git` to be
properly configured.
'';
}
{
assertion = cfg.jujutsu.enable -> cfg.git.enable;
message = ''
`config.my.home.delta.jujutsu` relies on `config.my.home.delta.git`
being enabled.
'';
}
];
home.packages = [ cfg.package ];
programs.git = lib.mkIf cfg.git.enable {
delta = {
enable = true;
inherit (cfg) package;
options = {
features = "diff-highlight decorations";
# Less jarring style for `diff-highlight` emulation
diff-highlight = {
minus-style = "red";
minus-non-emph-style = "red";
minus-emph-style = "bold red 52";
plus-style = "green";
plus-non-emph-style = "green";
plus-emph-style = "bold green 22";
whitespace-error-style = "reverse red";
};
# Personal preference for easier reading
decorations = {
commit-style = "raw"; # Do not recolor meta information
keep-plus-minus-markers = true;
paging = "always";
};
};
};
};
programs.jujutsu = lib.mkIf cfg.jujutsu.enable {
settings = {
merge-tools = {
delta = {
# Errors are signaled with exit codes greater or equal to 2
diff-expected-exit-codes = [ 0 1 ];
};
};
ui = {
diff = {
# Delta expects a `git diff` input
format = "git";
};
pager = "${lib.getExe cfg.package}";
};
};
};
};
}