home-manager/modules/programs/khal.nix

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# khal config loader is sensitive to leading space !
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.khal;
khalCalendarAccounts =
filterAttrs (_: a: a.khal.enable) config.accounts.calendar.accounts;
khalContactAccounts = mapAttrs (_: v: v // { type = "birthdays"; })
(filterAttrs (_: a: a.khal.enable) config.accounts.contact.accounts);
khalAccounts = khalCalendarAccounts // khalContactAccounts;
primaryAccount = findSingle (a: a.primary) null null
(mapAttrsToList (n: v: v // { name = n; }) khalAccounts);
definedAttrs = filterAttrs (_: v: !isNull v);
toKeyValueIfDefined = attrs: generators.toKeyValue { } (definedAttrs attrs);
genCalendarStr = name: value:
concatStringsSep "\n" ([
"[[${name}]]"
"path = ${
value.local.path + "/"
+ (optionalString (value.khal.type == "discover") value.khal.glob)
}"
] ++ optional (value.khal.readOnly) "readonly = True" ++ [
(toKeyValueIfDefined (getAttrs [ "type" "color" "priority" ] value.khal))
] ++ [ "\n" ]);
localeFormatOptions = let
T = lib.types;
suffix = ''
Format strings are for Python `strftime`, similarly to
{manpage}`strftime(3)`.
'';
in {
dateformat = mkOption {
type = T.str;
default = "%x";
description = ''
khal will display and understand all dates in this format.
${suffix}
'';
};
timeformat = mkOption {
type = T.str;
default = "%X";
description = ''
khal will display and understand all times in this format.
${suffix}
'';
};
datetimeformat = mkOption {
type = T.str;
default = "%c";
description = ''
khal will display and understand all datetimes in this format.
${suffix}
'';
};
longdateformat = mkOption {
type = T.str;
default = "%x";
description = ''
khal will display and understand all dates in this format.
It should contain a year (e.g. `%Y`).
${suffix}
'';
};
longdatetimeformat = mkOption {
type = T.str;
default = "%c";
description = ''
khal will display and understand all datetimes in this format.
It should contain a year (e.g. `%Y`).
${suffix}
'';
};
};
localeOptions = let T = lib.types;
in localeFormatOptions // {
unicode_symbols = mkOption {
type = T.bool;
default = true;
description = ''
By default khal uses some Unicode symbols (as in "non-ASCII") as
indicators for things like repeating events.
If your font, encoding etc. does not support those symbols, set this
to false (this will enable ASCII-based replacements).
'';
};
default_timezone = mkOption {
type = T.nullOr T.str;
default = null;
description = ''
Default for new events or if khal does not understand the timezone
in an ical file.
If `null`, the timezone of your computer will be used.
'';
};
local_timezone = mkOption {
type = T.nullOr T.str;
default = null;
description = ''
khal will show all times in this timezone.
If `null`, the timezone of your computer will be used.
'';
};
firstweekday = mkOption {
type = T.ints.between 0 6;
default = 0;
description = ''
The first day of the week, where Monday is 0 and Sunday is 6.
'';
};
weeknumbers = mkOption {
type = T.enum [ "off" "left" "right" ];
default = "off";
description = ''
Enable week numbers in calendar and interactive (ikhal) mode.
As those are ISO week numbers, they only work properly if
{option}`firstweekday` is set to 0.
'';
};
};
in {
options.programs.khal = {
enable = mkEnableOption "khal, a CLI calendar application";
locale = mkOption {
type = lib.types.submodule { options = localeOptions; };
description = ''
khal locale settings.
'';
};
};
config = mkIf cfg.enable {
home.packages = [ pkgs.khal ];
xdg.configFile."khal/config".text = concatStringsSep "\n" ([ "[calendars]" ]
++ mapAttrsToList genCalendarStr khalAccounts ++ [
(generators.toINI { } {
# locale = definedAttrs (cfg.locale // { _module = null; });
default = optionalAttrs (!isNull primaryAccount) {
highlight_event_days = true;
default_calendar = if isNull primaryAccount.primaryCollection then
primaryAccount.name
else
primaryAccount.primaryCollection;
};
})
]);
};
}