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