74 lines
2.1 KiB
Nix
74 lines
2.1 KiB
Nix
{ pkgs ? import <nixpkgs> { }, confPath, confAttr ? null, check ? true
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, newsReadIdsFile ? null }:
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let
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inherit (pkgs.lib)
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concatMapStringsSep fileContents filter length optionalString removeSuffix
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replaceStrings splitString;
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env = import ../modules {
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configuration = if confAttr == "" || confAttr == null then
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confPath
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else
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(import confPath).${confAttr};
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pkgs = pkgs;
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check = check;
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};
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newsReadIds = if newsReadIdsFile == null then
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{ }
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else
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let ids = splitString "\n" (fileContents newsReadIdsFile);
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in builtins.listToAttrs (map (id: {
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name = id;
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value = null;
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}) ids);
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newsIsRead = entry: builtins.hasAttr entry.id newsReadIds;
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newsFiltered = let pred = entry: entry.condition && !newsIsRead entry;
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in filter pred env.newsEntries;
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newsNumUnread = length newsFiltered;
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newsFileUnread = pkgs.writeText "news-unread.txt" (concatMapStringsSep "\n\n"
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(entry:
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let
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time =
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replaceStrings [ "T" ] [ " " ] (removeSuffix "+00:00" entry.time);
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in ''
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* ${time}
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${replaceStrings [ "\n" ] [ "\n " ] entry.message}
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'') newsFiltered);
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newsFileAll = pkgs.writeText "news-all.txt" (concatMapStringsSep "\n\n"
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(entry:
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let
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flag = if newsIsRead entry then "read" else "unread";
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time =
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replaceStrings [ "T" ] [ " " ] (removeSuffix "+00:00" entry.time);
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in ''
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* ${time} [${flag}]
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${replaceStrings [ "\n" ] [ "\n " ] entry.message}
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'') env.newsEntries);
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# File where each line corresponds to an unread news entry
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# identifier. If non-empty then the file ends in "\n".
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newsUnreadIdsFile = pkgs.writeText "news-unread-ids"
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(let text = concatMapStringsSep "\n" (entry: entry.id) newsFiltered;
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in text + optionalString (text != "") "\n");
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newsInfo = pkgs.writeText "news-info.sh" ''
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local newsNumUnread=${toString newsNumUnread}
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local newsDisplay="${env.newsDisplay}"
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local newsFileAll="${newsFileAll}"
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local newsFileUnread="${newsFileUnread}"
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local newsUnreadIdsFile="${newsUnreadIdsFile}"
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'';
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in {
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inherit (env) activationPackage;
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inherit newsInfo;
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}
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