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home-manager/modules/services/imapnotify.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.imapnotify;
safeName = lib.replaceStrings [ "@" ":" "\\" "[" "]" ] [ "-" "-" "-" "" "" ];
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configName = account: "imapnotify-${safeName account.name}-config.json";
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imapnotifyAccounts =
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filter (a: a.imapnotify.enable) (attrValues config.accounts.email.accounts);
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genAccountUnit = account:
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let name = safeName account.name;
in {
name = "imapnotify-${name}";
value = {
Unit = { Description = "imapnotify for ${name}"; };
Service = {
# Use the nix store path for config to ensure service restarts when it changes
ExecStart =
"${getExe cfg.package} -conf '${genAccountConfig account}'";
Restart = "always";
RestartSec = 30;
Type = "simple";
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} // optionalAttrs account.notmuch.enable {
Environment =
"NOTMUCH_CONFIG=${config.xdg.configHome}/notmuch/default/config";
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};
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Install = { WantedBy = [ "default.target" ]; };
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};
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};
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genAccountAgent = account:
let name = safeName account.name;
in {
name = "imapnotify-${name}";
value = {
enable = true;
config = {
# Use the nix store path for config to ensure service restarts when it changes
ProgramArguments =
[ "${getExe cfg.package}" "-conf" "${genAccountConfig account}" ];
KeepAlive = true;
ThrottleInterval = 30;
ExitTimeOut = 0;
ProcessType = "Background";
RunAtLoad = true;
} // optionalAttrs account.notmuch.enable {
EnvironmentVariables.NOTMUCH_CONFIG =
"${config.xdg.configHome}/notmuch/default/config";
};
};
};
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genAccountConfig = account:
pkgs.writeText (configName account) (let
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port = if account.imap.port != null then
account.imap.port
else if account.imap.tls.enable then
993
else
143;
toJSON = builtins.toJSON;
in toJSON ({
inherit (account.imap) host;
inherit port;
tls = account.imap.tls.enable;
tlsOptions.starttls = account.imap.tls.useStartTls;
username = account.userName;
passwordCmd =
lib.concatMapStringsSep " " lib.escapeShellArg account.passwordCommand;
inherit (account.imapnotify) boxes;
} // optionalAttrs (account.imapnotify.onNotify != "") {
onNewMail = account.imapnotify.onNotify;
} // optionalAttrs (account.imapnotify.onNotifyPost != "") {
onNewMailPost = account.imapnotify.onNotifyPost;
} // account.imapnotify.extraConfig));
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in {
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meta.maintainers = [ maintainers.nickhu ];
options = {
services.imapnotify = {
enable = mkEnableOption "imapnotify";
package = mkOption {
type = types.package;
default = pkgs.goimapnotify;
defaultText = literalExpression "pkgs.goimapnotify";
example = literalExpression "pkgs.imapnotify";
description = "The imapnotify package to use";
};
};
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accounts.email.accounts = mkOption {
type = with types;
attrsOf
(submodule (import ./imapnotify-accounts.nix { inherit pkgs lib; }));
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};
};
config = mkIf cfg.enable {
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assertions = let
checkAccounts = pred: msg:
let badAccounts = filter pred imapnotifyAccounts;
in {
assertion = badAccounts == [ ];
message = "imapnotify: Missing ${msg} for accounts: "
+ concatMapStringsSep ", " (a: a.name) badAccounts;
};
in [
(checkAccounts (a: a.maildir == null) "maildir configuration")
(checkAccounts (a: a.imap == null) "IMAP configuration")
(checkAccounts (a: a.passwordCommand == null) "password command")
(checkAccounts (a: a.userName == null) "username")
];
systemd.user.services = listToAttrs (map genAccountUnit imapnotifyAccounts);
launchd.agents = listToAttrs (map genAccountAgent imapnotifyAccounts);
xdg.configFile = listToAttrs (map (account: {
name = "imapnotify/${configName account}";
value.source = genAccountConfig account;
}) imapnotifyAccounts);
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};
}