6583448bab
Added --json-error-messages option, which includes error messages in the json output, rather than outputting them to stderr. The actual rediretion of errors is not implemented yet, this is only the docs and option plumbing. This commit was supported by the NSF-funded DataLad project.
90 lines
2.4 KiB
Haskell
90 lines
2.4 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010-2012 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.Find where
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import Data.Default
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import qualified Data.Map as M
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import Command
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import Annex.Content
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import Limit
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import Types.Key
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import qualified Utility.Format
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import Utility.DataUnits
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cmd :: Command
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cmd = withGlobalOptions [annexedMatchingOptions] $ mkCommand $
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command "find" SectionQuery "lists available files"
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paramPaths (seek <$$> optParser)
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mkCommand :: Command -> Command
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mkCommand = noCommit . noMessages . withGlobalOptions [jsonOptions]
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data FindOptions = FindOptions
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{ findThese :: CmdParams
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, formatOption :: Maybe Utility.Format.Format
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, batchOption :: BatchMode
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}
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optParser :: CmdParamsDesc -> Parser FindOptions
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optParser desc = FindOptions
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<$> cmdParams desc
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<*> optional parseFormatOption
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<*> parseBatchOption
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parseFormatOption :: Parser Utility.Format.Format
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parseFormatOption =
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option (Utility.Format.gen <$> str)
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( long "format" <> metavar paramFormat
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<> help "control format of output"
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)
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<|> flag' (Utility.Format.gen "${file}\0")
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( long "print0"
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<> help "output filenames terminated with nulls"
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)
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seek :: FindOptions -> CommandSeek
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seek o = case batchOption o of
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NoBatch -> withFilesInGit go =<< workTreeItems (findThese o)
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Batch -> batchFiles go
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where
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go = whenAnnexed $ start o
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-- only files inAnnex are shown, unless the user has requested
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-- others via a limit
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start :: FindOptions -> FilePath -> Key -> CommandStart
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start o file key = ifM (limited <||> inAnnex key)
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( do
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showFormatted (formatOption o) file $ ("file", file) : keyVars key
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next $ next $ return True
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, stop
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)
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showFormatted :: Maybe Utility.Format.Format -> String -> [(String, String)] -> Annex ()
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showFormatted format unformatted vars =
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unlessM (showFullJSON $ JSONChunk vars) $
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case format of
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Nothing -> liftIO $ putStrLn unformatted
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Just formatter -> liftIO $ putStr $
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Utility.Format.format formatter $
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M.fromList vars
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keyVars :: Key -> [(String, String)]
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keyVars key =
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[ ("key", key2file key)
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, ("backend", formatKeyVariety $ keyVariety key)
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, ("bytesize", size show)
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, ("humansize", size $ roughSize storageUnits True)
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, ("keyname", keyName key)
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, ("hashdirlower", hashDirLower def key)
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, ("hashdirmixed", hashDirMixed def key)
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, ("mtime", whenavail show $ keyMtime key)
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]
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where
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size c = whenavail c $ keySize key
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whenavail = maybe "unknown"
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