diff --git a/hledger-lib/Hledger/Read/JournalReader.hs b/hledger-lib/Hledger/Read/JournalReader.hs index 32825b883..773454a72 100644 --- a/hledger-lib/Hledger/Read/JournalReader.hs +++ b/hledger-lib/Hledger/Read/JournalReader.hs @@ -216,6 +216,10 @@ includedirectivep = do else parseErrorAt parserpos $ "No existing files match pattern: " ++ filename parseChild parentpos filepath = do + parentfilestack <- fmap sourceName . statePos <$> getParserState + when (filepath `elem` parentfilestack) + $ parseErrorAt parentpos ("Cyclic include: " ++ filepath) + childInput <- lift $ readFilePortably filepath `orRethrowIOError` (show parentpos ++ " reading " ++ filepath)