json object for FileNotFound
When a nonexistant file is passed to a command and --json-error-messages is enabled, output a JSON object indicating the problem. (But git ls-files --error-unmatch still displays errors about such files in some situations.) I don't like the duplication of the name of the command introduced by this, but I can't see a great way around it. One way would be to pass the Command instead. When json is not enabled, the stderr is unchanged. This is necessary because some commands like find have custom output. So dislaying "find foo not found" would be wrong. So had to complicate things with toplevelFileProblem having different output with and without json. When not using --json-error-messages but still using --json, it displays the error to stderr, but does display a json object without the error. It does have an errorid though. Unsure how useful that behavior is. Sponsored-by: Dartmouth College's Datalad project
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29 changed files with 97 additions and 43 deletions
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@ -20,6 +20,7 @@ module Messages.JSON (
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addErrorMessage,
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note,
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info,
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errorid,
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add,
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complete,
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progress,
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@ -51,6 +52,7 @@ import Utility.Metered
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import Utility.Percentage
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import Utility.Aeson
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import Utility.FileSystemEncoding
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import Types.Messages
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-- A global lock to avoid concurrent threads emitting json at the same time.
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{-# NOINLINE emitLock #-}
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@ -68,7 +70,8 @@ emit' b = do
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putMVar emitLock ()
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-- Building up a JSON object can be done by first using start,
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-- then add and note any number of times, and finally complete.
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-- then add and note and errorid any number of times, and finally
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-- complete.
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type JSONBuilder = Maybe (Object, Bool) -> Maybe (Object, Bool)
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none :: JSONBuilder
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@ -112,6 +115,12 @@ note s (Just (o, e)) = Just (HM.unionWith combinelines (HM.singleton "note" (toJ
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String (old <> "\n" <> new)
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combinelines new _old = new
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errorid :: ErrorId -> JSONBuilder
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errorid _ Nothing = Nothing
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errorid eid (Just (o, e)) = Just (HM.unionWith replaceold (HM.singleton "errorid" (toJSON' (show eid))) o, e)
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where
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replaceold new _old = new
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info :: String -> JSONBuilder
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info s _ = case j of
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Object o -> Just (o, True)
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