53526136e8
This is groundwork for nested seek loops, eg seeking over all files and then performing commandActions on a list of remotes, which can be done concurrently. This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
91 lines
2.4 KiB
Haskell
91 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 (commandAction . go)
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=<< workTreeItems (findThese o)
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Batch fmt -> batchFilesMatching fmt 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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