mirror of
https://github.com/nix-community/home-manager.git
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297 lines
11 KiB
Nix
297 lines
11 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.mbsync;
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# Accounts for which mbsync is enabled.
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mbsyncAccounts =
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filter (a: a.mbsync.enable) (attrValues config.accounts.email.accounts);
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# Given a SINGLE group's channels attribute set, return true if ANY of the channel's
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# patterns use the invalidOption attribute set value name.
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channelInvalidOption = channels: invalidOption:
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any (c: c) (mapAttrsToList (c: hasAttr invalidOption) channels);
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# Given a SINGLE account's groups attribute set, return true if ANY of the account's group's channel's patterns use the invalidOption attribute set value name.
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groupInvalidOption = groups: invalidOption:
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any (g: g) (mapAttrsToList (groupName: groupVals:
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channelInvalidOption groupVals.channels invalidOption) groups);
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# Given all accounts (ensure that accounts passed in here ARE mbsync-using accounts)
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# return true if ANY of the account's groups' channels' patterns use the
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# invalidOption attribute set value name.
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accountInvalidOption = accounts: invalidOption:
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any (a: a)
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(map (account: groupInvalidOption account.mbsync.groups invalidOption)
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mbsyncAccounts);
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genTlsConfig = tls:
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{
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SSLType = if !tls.enable then
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"None"
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else if tls.useStartTls then
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"STARTTLS"
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else
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"IMAPS";
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} // optionalAttrs (tls.enable && tls.certificatesFile != null) {
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CertificateFile = toString tls.certificatesFile;
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};
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imports = [
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(mkRenamedOptionModule [ "programs" "mbsync" "masterSlaveMapping" ] [
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"programs"
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"mbsync"
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"nearFarMapping"
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])
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];
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nearFarMapping = {
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none = "None";
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imap = "Far";
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maildir = "Near";
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both = "Both";
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};
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genSection = header: entries:
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let
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escapeValue = escape [ ''"'' ];
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hasSpace = v: builtins.match ".* .*" v != null;
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genValue = n: v:
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if isList v then
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concatMapStringsSep " " (genValue n) v
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else if isBool v then
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lib.hm.booleans.yesNo v
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else if isInt v then
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toString v
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else if isString v && hasSpace v then
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''"${escapeValue v}"''
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else if isString v then
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v
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else
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let prettyV = lib.generators.toPretty { } v;
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in throw "mbsync: unexpected value for option ${n}: '${prettyV}'";
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in ''
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${header}
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${concatStringsSep "\n"
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(mapAttrsToList (n: v: "${n} ${genValue n v}") entries)}
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'';
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genAccountConfig = account:
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with account;
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genSection "IMAPAccount ${name}" ({
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Host = imap.host;
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User = userName;
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PassCmd = toString passwordCommand;
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} // genTlsConfig imap.tls
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// optionalAttrs (imap.port != null) { Port = toString imap.port; }
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// mbsync.extraConfig.account) + "\n"
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+ genSection "IMAPStore ${name}-remote"
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({ Account = name; } // mbsync.extraConfig.remote) + "\n"
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+ genSection "MaildirStore ${name}-local" ({
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Inbox = "${maildir.absPath}/${folders.inbox}";
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} // optionalAttrs
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(mbsync.subFolders != "Maildir++" || mbsync.flatten != null) {
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Path = "${maildir.absPath}/";
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} // optionalAttrs (mbsync.flatten == null) {
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SubFolders = mbsync.subFolders;
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} // optionalAttrs (mbsync.flatten != null) { Flatten = mbsync.flatten; }
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// mbsync.extraConfig.local) + "\n" + genChannels account;
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genChannels = account:
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with account;
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if mbsync.groups == { } then
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genAccountWideChannel account
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else
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genGroupChannelConfig name mbsync.groups + "\n"
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+ genAccountGroups mbsync.groups;
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# Used when no channels are specified for this account. This will create a
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# single channel for the entire account that is then further refined within
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# the Group for synchronization.
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genAccountWideChannel = account:
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with account;
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genSection "Channel ${name}" ({
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Far = ":${name}-remote:";
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Near = ":${name}-local:";
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Patterns = mbsync.patterns;
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Create = nearFarMapping.${mbsync.create};
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Remove = nearFarMapping.${mbsync.remove};
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Expunge = nearFarMapping.${mbsync.expunge};
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SyncState = "*";
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} // mbsync.extraConfig.channel) + "\n";
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# Given the attr set of groups, return a string of channels that will direct
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# mail to the proper directories, according to the pattern used in channel's
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# "far" pattern definition.
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genGroupChannelConfig = storeName: groups:
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let
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# Given the name of the group this channel is part of and the channel
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# itself, generate the string for the desired configuration.
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genChannelString = groupName: channel:
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let
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escapeValue = escape [ ''\"'' ];
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hasSpace = v: builtins.match ".* .*" v != null;
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# Given a list of patterns, will return the string requested.
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# Only prints if the pattern is NOT the empty list, the default.
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genChannelPatterns = patterns:
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if (length patterns) != 0 then
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"Pattern " + concatStringsSep " "
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(map (pat: if hasSpace pat then escapeValue pat else pat)
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patterns) + "\n"
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else
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"";
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in genSection "Channel ${groupName}-${channel.name}" ({
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Far = ":${storeName}-remote:${channel.farPattern}";
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Near = ":${storeName}-local:${channel.nearPattern}";
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} // channel.extraConfig) + genChannelPatterns channel.patterns;
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# Given the group name, and a attr set of channels within that group,
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# Generate a list of strings for each channels' configuration.
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genChannelStrings = groupName: channels:
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optionals (channels != { })
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(mapAttrsToList (channelName: info: genChannelString groupName info)
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channels);
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# Given a group, return a string that configures all the channels within
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# the group.
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genGroupsChannels = group:
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concatStringsSep "\n" (genChannelStrings group.name group.channels);
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# Generate all channel configurations for all groups for this account.
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in concatStringsSep "\n"
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(remove "" (mapAttrsToList (name: group: genGroupsChannels group) groups));
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# Given the attr set of groups, return a string which maps channels to groups
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genAccountGroups = groups:
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let
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# Given the name of the group and the attribute set of channels, make
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# make "Channel <grpName>-<chnName>" for each channel to list os strings
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genChannelStrings = groupName: channels:
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mapAttrsToList (name: info: "Channel ${groupName}-${name}") channels;
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# Take in 1 group, if the group has channels specified, construct the
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# "Group <grpName>" header and each of the channels.
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genGroupChannelString = group:
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flatten (optionals (group.channels != { }) ([ "Group ${group.name}" ]
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++ (genChannelStrings group.name group.channels)));
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# Given set of groups, generates list of strings, where each string is one
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# of the groups and its constituent channels.
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genGroupsStrings = mapAttrsToList (name: info:
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concatStringsSep "\n" (genGroupChannelString groups.${name})) groups;
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# Join all non-empty groups.
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combined = concatStringsSep "\n\n" (remove "" genGroupsStrings) + "\n";
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in combined;
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genGroupConfig = name: channels:
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let
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genGroupChannel = n: boxes: "Channel ${n}:${concatStringsSep "," boxes}";
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in "\n" + concatStringsSep "\n"
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([ "Group ${name}" ] ++ mapAttrsToList genGroupChannel channels);
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in {
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meta.maintainers = [ maintainers.KarlJoad ];
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options = {
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programs.mbsync = {
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enable = mkEnableOption "mbsync IMAP4 and Maildir mailbox synchronizer";
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package = mkOption {
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type = types.package;
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default = pkgs.isync;
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defaultText = literalExpression "pkgs.isync";
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example = literalExpression "pkgs.isync";
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description = "The package to use for the mbsync binary.";
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};
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groups = mkOption {
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type = types.attrsOf (types.attrsOf (types.listOf types.str));
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default = { };
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example = literalExpression ''
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{
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inboxes = {
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account1 = [ "Inbox" ];
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account2 = [ "Inbox" ];
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};
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}
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'';
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description = ''
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Definition of groups.
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Extra configuration lines to add to the mbsync configuration.
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'';
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};
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};
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accounts.email.accounts = mkOption {
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type = with types; attrsOf (submodule (import ./mbsync-accounts.nix));
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};
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};
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config = mkIf cfg.enable (mkMerge [
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{
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assertions = let
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checkAccounts = pred: msg:
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let badAccounts = filter pred mbsyncAccounts;
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in {
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assertion = badAccounts == [ ];
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message = "mbsync: ${msg} for accounts: "
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+ concatMapStringsSep ", " (a: a.name) badAccounts;
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};
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in [
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(checkAccounts (a: a.maildir == null) "Missing maildir configuration")
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(checkAccounts (a: a.imap == null) "Missing IMAP configuration")
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(checkAccounts (a: a.passwordCommand == null) "Missing passwordCommand")
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(checkAccounts (a: a.userName == null) "Missing username")
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];
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}
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(mkIf (accountInvalidOption mbsyncAccounts "masterPattern") {
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warnings = [
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"mbsync channels no longer use masterPattern. Use farPattern in its place."
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];
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})
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(mkIf (accountInvalidOption mbsyncAccounts "slavePattern") {
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warnings = [
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"mbsync channels no longer use slavePattern. Use nearPattern in its place."
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];
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})
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{
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home.packages = [ cfg.package ];
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programs.notmuch.new.ignore = [ ".uidvalidity" ".mbsyncstate" ];
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home.file.".mbsyncrc".text = let
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accountsConfig = map genAccountConfig mbsyncAccounts;
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# Only generate this kind of Group configuration if there are ANY accounts
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# that do NOT have a per-account groups/channels option(s) specified.
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groupsConfig =
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if any (account: account.mbsync.groups == { }) mbsyncAccounts then
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mapAttrsToList genGroupConfig cfg.groups
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else
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[ ];
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in ''
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# Generated by Home Manager.
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''
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+ concatStringsSep "\n" (optional (cfg.extraConfig != "") cfg.extraConfig)
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+ concatStringsSep "\n\n" accountsConfig
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+ concatStringsSep "\n" groupsConfig;
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home.activation = mkIf (mbsyncAccounts != [ ]) {
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createMaildir =
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hm.dag.entryBetween [ "linkGeneration" ] [ "writeBoundary" ] ''
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$DRY_RUN_CMD mkdir -m700 -p $VERBOSE_ARG ${
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concatMapStringsSep " " (a: a.maildir.absPath) mbsyncAccounts
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}
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'';
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};
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}
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]);
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}
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