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https://github.com/nix-community/home-manager
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72 lines
2.4 KiB
Nix
72 lines
2.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.mu;
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# Used to generate command line arguments that mu can operate with.
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genCmdMaildir = path: "--maildir=" + path;
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# Sorted list of personal email addresses to register
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sortedAddresses = let
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# Set of email account sets where mu.enable = true.
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muAccounts =
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filter (a: a.mu.enable) (attrValues config.accounts.email.accounts);
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addrs = map (a: a.address) muAccounts;
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# Construct list of lists containing email aliases, and flatten
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aliases = flatten (map (a: a.aliases) muAccounts);
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# Sort the list
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in sort lessThan (addrs ++ aliases);
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# Takes the list of accounts with mu.enable = true, and generates a
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# command-line flag for initializing the mu database.
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myAddresses = let
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# Prefix --my-address= to each account's address and all defined aliases
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addMyAddress = map (addr: "--my-address=" + addr) sortedAddresses;
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in concatStringsSep " " addMyAddress;
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in {
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meta.maintainers = [ maintainers.KarlJoad ];
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options = {
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programs.mu = {
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enable = mkEnableOption "mu, a maildir indexer and searcher";
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package = mkPackageOption pkgs "mu" { };
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# No options/config file present for mu, and program author will not be
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# adding one soon. See https://github.com/djcb/mu/issues/882 for more
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# information about this.
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};
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accounts.email.accounts = mkOption {
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type = with types;
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attrsOf
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(submodule { options.mu.enable = mkEnableOption "mu indexing"; });
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};
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};
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config = mkIf cfg.enable {
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home.packages = [ cfg.package ];
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home.activation.runMuInit = let
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maildirOption = genCmdMaildir config.accounts.email.maildirBasePath;
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dbLocation = config.xdg.cacheHome + "/mu";
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muExe = getExe cfg.package;
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gawkExe = getExe pkgs.gawk;
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in hm.dag.entryAfter [ "writeBoundary" ] ''
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# If the database directory exists and registered personal addresses remain the same,
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# then `mu init` should NOT be run.
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# In theory, mu is the only thing that creates that directory, and it is
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# only created during the initial index.
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MU_SORTED_ADDRS=$((${muExe} info store | ${gawkExe} '/personal-address/{print $4}' | LC_ALL=C sort | paste -sd ' ') || exit 0)
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if [[ ! -d "${dbLocation}" || ! "$MU_SORTED_ADDRS" = "${
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concatStringsSep " " sortedAddresses
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}" ]]; then
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run ${muExe} init ${maildirOption} ${myAddresses} $VERBOSE_ARG;
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fi
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'';
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};
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}
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