485 lines
18 KiB
Haskell
485 lines
18 KiB
Haskell
{- git-annex command
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-
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- Copyright 2011-2017 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Command.AddUrl where
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import Network.URI
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import Command
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import Backend
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import qualified Annex
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import qualified Annex.Url as Url
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import qualified Backend.URL
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import qualified Remote
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import qualified Types.Remote as Remote
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import qualified Command.Add
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import Annex.Content
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import Annex.Ingest
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import Annex.CheckIgnore
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import Annex.UUID
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import Annex.YoutubeDl
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import Logs.Web
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import Types.KeySource
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import Types.UrlContents
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import Annex.FileMatcher
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import Logs.Location
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import Utility.Metered
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import Utility.HtmlDetect
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import Utility.Path.Max
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import qualified Annex.Transfer as Transfer
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cmd :: Command
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cmd = notBareRepo $ withGlobalOptions [jobsOption, jsonOptions, jsonProgressOption] $
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command "addurl" SectionCommon "add urls to annex"
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(paramRepeating paramUrl) (seek <$$> optParser)
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data AddUrlOptions = AddUrlOptions
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{ addUrls :: CmdParams
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, pathdepthOption :: Maybe Int
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, prefixOption :: Maybe String
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, suffixOption :: Maybe String
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, downloadOptions :: DownloadOptions
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, batchOption :: BatchMode
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, batchFilesOption :: Bool
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}
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data DownloadOptions = DownloadOptions
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{ relaxedOption :: Bool
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, rawOption :: Bool
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, fileOption :: Maybe FilePath
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}
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optParser :: CmdParamsDesc -> Parser AddUrlOptions
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optParser desc = AddUrlOptions
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<$> cmdParams desc
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<*> optional (option auto
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( long "pathdepth" <> metavar paramNumber
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<> help "number of url path components to use in filename"
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))
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<*> optional (strOption
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( long "prefix" <> metavar paramValue
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<> help "add a prefix to the filename"
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))
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<*> optional (strOption
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( long "suffix" <> metavar paramValue
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<> help "add a suffix to the filename"
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))
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<*> parseDownloadOptions True
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<*> parseBatchOption
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<*> switch
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( long "with-files"
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<> help "parse batch mode lines of the form \"$url $file\""
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)
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parseDownloadOptions :: Bool -> Parser DownloadOptions
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parseDownloadOptions withfileoption = DownloadOptions
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<$> switch
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( long "relaxed"
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<> help "skip size check"
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)
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<*> switch
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( long "raw"
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<> help "disable special handling for torrents, youtube-dl, etc"
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)
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<*> if withfileoption
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then optional (strOption
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( long "file" <> metavar paramFile
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<> help "specify what file the url is added to"
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))
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else pure Nothing
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seek :: AddUrlOptions -> CommandSeek
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seek o = startConcurrency commandStages $ do
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addunlockedmatcher <- addUnlockedMatcher
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let go (o', u) = do
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r <- Remote.claimingUrl u
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if Remote.uuid r == webUUID || rawOption (downloadOptions o')
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then void $ commandAction $ startWeb addunlockedmatcher o' u
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else checkUrl addunlockedmatcher r o' u
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forM_ (addUrls o) (\u -> go (o, u))
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case batchOption o of
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Batch fmt -> batchInput fmt (parseBatchInput o) go
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NoBatch -> noop
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parseBatchInput :: AddUrlOptions -> String -> Either String (AddUrlOptions, URLString)
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parseBatchInput o s
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| batchFilesOption o =
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let (u, f) = separate (== ' ') s
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in if null u || null f
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then Left ("parsed empty url or filename in input: " ++ s)
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else Right (o { downloadOptions = (downloadOptions o) { fileOption = Just f } }, u)
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| otherwise = Right (o, s)
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checkUrl :: AddUnlockedMatcher -> Remote -> AddUrlOptions -> URLString -> Annex ()
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checkUrl addunlockedmatcher r o u = do
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pathmax <- liftIO $ fileNameLengthLimit "."
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let deffile = fromMaybe (urlString2file u (pathdepthOption o) pathmax) (fileOption (downloadOptions o))
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go deffile =<< maybe
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(error $ "unable to checkUrl of " ++ Remote.name r)
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(tryNonAsync . flip id u)
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(Remote.checkUrl r)
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where
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go _ (Left e) = void $ commandAction $ startingAddUrl u o $ do
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warning (show e)
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next $ return False
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go deffile (Right (UrlContents sz mf)) = do
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let f = adjustFile o (fromMaybe (maybe deffile fromSafeFilePath mf) (fileOption (downloadOptions o)))
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void $ commandAction $ startRemote addunlockedmatcher r o f u sz
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go deffile (Right (UrlMulti l)) = case fileOption (downloadOptions o) of
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Nothing ->
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forM_ l $ \(u', sz, f) -> do
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let f' = adjustFile o (deffile </> fromSafeFilePath f)
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void $ commandAction $ startRemote addunlockedmatcher r o f' u' sz
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Just f -> case l of
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[] -> noop
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((u',sz,_):[]) -> do
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let f' = adjustFile o f
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void $ commandAction $ startRemote addunlockedmatcher r o f' u' sz
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_ -> giveup $ unwords
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[ "That url contains multiple files according to the"
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, Remote.name r
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, " remote; cannot add it to a single file."
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]
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startRemote :: AddUnlockedMatcher -> Remote -> AddUrlOptions -> FilePath -> URLString -> Maybe Integer -> CommandStart
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startRemote addunlockedmatcher r o file uri sz = do
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pathmax <- liftIO $ fileNameLengthLimit "."
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let file' = joinPath $ map (truncateFilePath pathmax) $ splitDirectories file
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startingAddUrl uri o $ do
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showNote $ "from " ++ Remote.name r
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showDestinationFile file'
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performRemote addunlockedmatcher r o uri file' sz
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performRemote :: AddUnlockedMatcher -> Remote -> AddUrlOptions -> URLString -> FilePath -> Maybe Integer -> CommandPerform
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performRemote addunlockedmatcher r o uri file sz = ifAnnexed (toRawFilePath file) adduri geturi
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where
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loguri = setDownloader uri OtherDownloader
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adduri = addUrlChecked o loguri file (Remote.uuid r) checkexistssize
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checkexistssize key = return $ case sz of
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Nothing -> (True, True, loguri)
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Just n -> (True, n == fromMaybe n (fromKey keySize key), loguri)
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geturi = next $ isJust <$> downloadRemoteFile addunlockedmatcher r (downloadOptions o) uri file sz
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downloadRemoteFile :: AddUnlockedMatcher -> Remote -> DownloadOptions -> URLString -> FilePath -> Maybe Integer -> Annex (Maybe Key)
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downloadRemoteFile addunlockedmatcher r o uri file sz = checkCanAdd file $ do
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let urlkey = Backend.URL.fromUrl uri sz
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liftIO $ createDirectoryIfMissing True (parentDir file)
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ifM (Annex.getState Annex.fast <||> pure (relaxedOption o))
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( do
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addWorkTree addunlockedmatcher (Remote.uuid r) loguri file urlkey Nothing
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return (Just urlkey)
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, do
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-- Set temporary url for the urlkey
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-- so that the remote knows what url it
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-- should use to download it.
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setTempUrl urlkey loguri
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let downloader = \dest p -> fst
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<$> Remote.retrieveKeyFile r urlkey
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(AssociatedFile (Just (toRawFilePath file))) dest p
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ret <- downloadWith addunlockedmatcher downloader urlkey (Remote.uuid r) loguri file
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removeTempUrl urlkey
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return ret
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)
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where
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loguri = setDownloader uri OtherDownloader
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startWeb :: AddUnlockedMatcher -> AddUrlOptions -> URLString -> CommandStart
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startWeb addunlockedmatcher o urlstring = go $ fromMaybe bad $ parseURI urlstring
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where
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bad = fromMaybe (giveup $ "bad url " ++ urlstring) $
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Url.parseURIRelaxed $ urlstring
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go url = startingAddUrl urlstring o $ do
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pathmax <- liftIO $ fileNameLengthLimit "."
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urlinfo <- if relaxedOption (downloadOptions o)
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then pure Url.assumeUrlExists
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else Url.withUrlOptions $ Url.getUrlInfo urlstring
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file <- adjustFile o <$> case fileOption (downloadOptions o) of
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Just f -> pure f
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Nothing -> case Url.urlSuggestedFile urlinfo of
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Nothing -> pure $ url2file url (pathdepthOption o) pathmax
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Just sf -> do
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let f = truncateFilePath pathmax $
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sanitizeFilePath sf
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ifM (liftIO $ doesFileExist f <||> doesDirectoryExist f)
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( pure $ url2file url (pathdepthOption o) pathmax
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, pure f
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)
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performWeb addunlockedmatcher o urlstring file urlinfo
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performWeb :: AddUnlockedMatcher -> AddUrlOptions -> URLString -> FilePath -> Url.UrlInfo -> CommandPerform
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performWeb addunlockedmatcher o url file urlinfo = ifAnnexed (toRawFilePath file) addurl geturl
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where
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geturl = next $ isJust <$> addUrlFile addunlockedmatcher (downloadOptions o) url urlinfo file
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addurl = addUrlChecked o url file webUUID $ \k ->
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ifM (pure (not (rawOption (downloadOptions o))) <&&> youtubeDlSupported url)
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( return (True, True, setDownloader url YoutubeDownloader)
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, return (Url.urlExists urlinfo, Url.urlSize urlinfo == fromKey keySize k, url)
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)
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{- Check that the url exists, and has the same size as the key,
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- and add it as an url to the key. -}
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addUrlChecked :: AddUrlOptions -> URLString -> FilePath -> UUID -> (Key -> Annex (Bool, Bool, URLString)) -> Key -> CommandPerform
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addUrlChecked o url file u checkexistssize key =
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ifM ((elem url <$> getUrls key) <&&> (elem u <$> loggedLocations key))
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( do
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showDestinationFile file
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next $ return True
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, do
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(exists, samesize, url') <- checkexistssize key
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if exists && (samesize || relaxedOption (downloadOptions o))
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then do
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setUrlPresent key url'
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logChange key u InfoPresent
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next $ return True
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else do
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warning $ "while adding a new url to an already annexed file, " ++ if exists
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then "url does not have expected file size (use --relaxed to bypass this check) " ++ url
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else "failed to verify url exists: " ++ url
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stop
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)
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{- Downloads an url (except in fast or relaxed mode) and adds it to the
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- repository, normally at the specified FilePath.
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- But, if youtube-dl supports the url, it will be written to a
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- different file, based on the title of the media. Unless the user
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- specified fileOption, which then forces using the FilePath.
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-}
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addUrlFile :: AddUnlockedMatcher -> DownloadOptions -> URLString -> Url.UrlInfo -> FilePath -> Annex (Maybe Key)
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addUrlFile addunlockedmatcher o url urlinfo file =
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ifM (Annex.getState Annex.fast <||> pure (relaxedOption o))
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( nodownloadWeb addunlockedmatcher o url urlinfo file
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, downloadWeb addunlockedmatcher o url urlinfo file
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)
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downloadWeb :: AddUnlockedMatcher -> DownloadOptions -> URLString -> Url.UrlInfo -> FilePath -> Annex (Maybe Key)
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downloadWeb addunlockedmatcher o url urlinfo file =
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go =<< downloadWith' downloader urlkey webUUID url (AssociatedFile (Just (toRawFilePath file)))
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where
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urlkey = addSizeUrlKey urlinfo $ Backend.URL.fromUrl url Nothing
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downloader f p = Url.withUrlOptions $ downloadUrl urlkey p [url] f
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go Nothing = return Nothing
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-- If we downloaded a html file, try to use youtube-dl to
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-- extract embedded media.
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go (Just tmp) = ifM (pure (not (rawOption o)) <&&> liftIO (isHtml <$> readFile tmp))
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( tryyoutubedl tmp
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, normalfinish tmp
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)
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normalfinish tmp = checkCanAdd file $ do
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showDestinationFile file
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liftIO $ createDirectoryIfMissing True (parentDir file)
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finishDownloadWith addunlockedmatcher tmp webUUID url file
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tryyoutubedl tmp
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-- Ask youtube-dl what filename it will download
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-- first, and check if that is already an annexed file,
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-- to avoid unnecessary work in that case.
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| otherwise = youtubeDlFileNameHtmlOnly url >>= \case
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Right dest -> ifAnnexed (toRawFilePath dest)
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(alreadyannexed dest)
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(dl dest)
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Left _ -> normalfinish tmp
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-- Ask youtube-dl what filename it will download
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-- fist, so it's only used when the file contains embedded
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-- media.
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Right _ -> dl file
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Left _ -> normalfinish tmp
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where
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dl dest = withTmpWorkDir mediakey $ \workdir -> do
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let cleanuptmp = pruneTmpWorkDirBefore tmp (liftIO . nukeFile)
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Transfer.notifyTransfer Transfer.Download url $
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Transfer.download webUUID mediakey (AssociatedFile Nothing) Transfer.noRetry $ \_p ->
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youtubeDl url workdir >>= \case
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Right (Just mediafile) -> do
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cleanuptmp
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checkCanAdd dest $ do
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showDestinationFile dest
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addWorkTree addunlockedmatcher webUUID mediaurl dest mediakey (Just mediafile)
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return $ Just mediakey
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Right Nothing -> normalfinish tmp
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Left msg -> do
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cleanuptmp
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warning msg
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return Nothing
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mediaurl = setDownloader url YoutubeDownloader
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mediakey = Backend.URL.fromUrl mediaurl Nothing
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-- Does the already annexed file have the mediaurl
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-- as an url? If so nothing to do.
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alreadyannexed dest k = do
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us <- getUrls k
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if mediaurl `elem` us
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then return (Just k)
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else do
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warning $ dest ++ " already exists; not overwriting"
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return Nothing
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{- The destination file is not known at start time unless the user provided
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- a filename. It's not displayed then for output consistency,
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- but is added to the json when available. -}
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startingAddUrl :: URLString -> AddUrlOptions -> CommandPerform -> CommandStart
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startingAddUrl url o p = starting "addurl" (ActionItemOther (Just url)) $ do
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case fileOption (downloadOptions o) of
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Nothing -> noop
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Just file -> maybeShowJSON $ JSONChunk [("file", file)]
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p
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showDestinationFile :: FilePath -> Annex ()
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showDestinationFile file = do
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showNote ("to " ++ file)
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maybeShowJSON $ JSONChunk [("file", file)]
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{- The Key should be a dummy key, based on the URL, which is used
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- for this download, before we can examine the file and find its real key.
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- For resuming downloads to work, the dummy key for a given url should be
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- stable. For disk space checking to work, the dummy key should have
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- the size of the url already set.
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-
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- Downloads the url, sets up the worktree file, and returns the
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- real key.
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-}
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downloadWith :: AddUnlockedMatcher -> (FilePath -> MeterUpdate -> Annex Bool) -> Key -> UUID -> URLString -> FilePath -> Annex (Maybe Key)
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downloadWith addunlockedmatcher downloader dummykey u url file =
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go =<< downloadWith' downloader dummykey u url afile
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where
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afile = AssociatedFile (Just (toRawFilePath file))
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go Nothing = return Nothing
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go (Just tmp) = finishDownloadWith addunlockedmatcher tmp u url file
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{- Like downloadWith, but leaves the dummy key content in
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- the returned location. -}
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downloadWith' :: (FilePath -> MeterUpdate -> Annex Bool) -> Key -> UUID -> URLString -> AssociatedFile -> Annex (Maybe FilePath)
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downloadWith' downloader dummykey u url afile =
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checkDiskSpaceToGet dummykey Nothing $ do
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tmp <- fromRepo $ gitAnnexTmpObjectLocation dummykey
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ok <- Transfer.notifyTransfer Transfer.Download url $
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Transfer.download u dummykey afile Transfer.stdRetry $ \p -> do
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liftIO $ createDirectoryIfMissing True (parentDir tmp)
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downloader tmp p
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if ok
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then return (Just tmp)
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else return Nothing
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finishDownloadWith :: AddUnlockedMatcher -> FilePath -> UUID -> URLString -> FilePath -> Annex (Maybe Key)
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finishDownloadWith addunlockedmatcher tmp u url file = do
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backend <- chooseBackend file
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let source = KeySource
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{ keyFilename = toRawFilePath file
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, contentLocation = toRawFilePath tmp
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, inodeCache = Nothing
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}
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genKey source nullMeterUpdate backend >>= \case
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Nothing -> return Nothing
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Just (key, _) -> do
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addWorkTree addunlockedmatcher u url file key (Just tmp)
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return (Just key)
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{- Adds the url size to the Key. -}
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addSizeUrlKey :: Url.UrlInfo -> Key -> Key
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addSizeUrlKey urlinfo key = alterKey key $ \d -> d
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{ keySize = Url.urlSize urlinfo
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}
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{- Adds worktree file to the repository. -}
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addWorkTree :: AddUnlockedMatcher -> UUID -> URLString -> FilePath -> Key -> Maybe FilePath -> Annex ()
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addWorkTree addunlockedmatcher u url file key mtmp = case mtmp of
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Nothing -> go
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Just tmp -> do
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-- Move to final location for large file check.
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pruneTmpWorkDirBefore tmp $ \_ -> liftIO $ do
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createDirectoryIfMissing True (takeDirectory file)
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renameFile tmp file
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largematcher <- largeFilesMatcher
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large <- checkFileMatcher largematcher file
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if large
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then do
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-- Move back to tmp because addAnnexedFile
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-- needs the file in a different location
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-- than the work tree file.
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liftIO $ renameFile file tmp
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go
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else void $ Command.Add.addSmall (toRawFilePath file)
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where
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go = do
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maybeShowJSON $ JSONChunk [("key", serializeKey key)]
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setUrlPresent key url
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logChange key u InfoPresent
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ifM (addAnnexedFile addunlockedmatcher file key mtmp)
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( do
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when (isJust mtmp) $
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logStatus key InfoPresent
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, maybe noop (\tmp -> pruneTmpWorkDirBefore tmp (liftIO . nukeFile)) mtmp
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)
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nodownloadWeb :: AddUnlockedMatcher -> DownloadOptions -> URLString -> Url.UrlInfo -> FilePath -> Annex (Maybe Key)
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nodownloadWeb addunlockedmatcher o url urlinfo file
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| Url.urlExists urlinfo = if rawOption o
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then nomedia
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else either (const nomedia) usemedia
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=<< youtubeDlFileName url
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| otherwise = do
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warning $ "unable to access url: " ++ url
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return Nothing
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where
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nomedia = do
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let key = Backend.URL.fromUrl url (Url.urlSize urlinfo)
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nodownloadWeb' addunlockedmatcher url key file
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usemedia mediafile = do
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let dest = if isJust (fileOption o)
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then file
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else takeFileName mediafile
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let mediaurl = setDownloader url YoutubeDownloader
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let mediakey = Backend.URL.fromUrl mediaurl Nothing
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nodownloadWeb' addunlockedmatcher mediaurl mediakey dest
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nodownloadWeb' :: AddUnlockedMatcher -> URLString -> Key -> FilePath -> Annex (Maybe Key)
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nodownloadWeb' addunlockedmatcher url key file = checkCanAdd file $ do
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showDestinationFile file
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liftIO $ createDirectoryIfMissing True (parentDir file)
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addWorkTree addunlockedmatcher webUUID url file key Nothing
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return (Just key)
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url2file :: URI -> Maybe Int -> Int -> FilePath
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url2file url pathdepth pathmax = case pathdepth of
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Nothing -> truncateFilePath pathmax $ sanitizeFilePath fullurl
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Just depth
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| depth >= length urlbits -> frombits id
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| depth > 0 -> frombits $ drop depth
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| depth < 0 -> frombits $ reverse . take (negate depth) . reverse
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| otherwise -> giveup "bad --pathdepth"
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where
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fullurl = concat
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[ maybe "" uriRegName (uriAuthority url)
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, uriPath url
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, uriQuery url
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]
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frombits a = intercalate "/" $ a urlbits
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urlbits = map (truncateFilePath pathmax . sanitizeFilePath) $
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filter (not . null) $ splitc '/' fullurl
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urlString2file :: URLString -> Maybe Int -> Int -> FilePath
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urlString2file s pathdepth pathmax = case Url.parseURIRelaxed s of
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Nothing -> giveup $ "bad uri " ++ s
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Just u -> url2file u pathdepth pathmax
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adjustFile :: AddUrlOptions -> FilePath -> FilePath
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adjustFile o = addprefix . addsuffix
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where
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|
addprefix f = maybe f (++ f) (prefixOption o)
|
|
addsuffix f = maybe f (f ++) (suffixOption o)
|
|
|
|
checkCanAdd :: FilePath -> Annex (Maybe a) -> Annex (Maybe a)
|
|
checkCanAdd file a = ifM (isJust <$> (liftIO $ catchMaybeIO $ getSymbolicLinkStatus file))
|
|
( do
|
|
warning $ file ++ " already exists; not overwriting"
|
|
return Nothing
|
|
, ifM ((not <$> Annex.getState Annex.force) <&&> checkIgnored file)
|
|
( do
|
|
warning $ "not adding " ++ file ++ " which is .gitignored (use --force to override)"
|
|
return Nothing
|
|
, a
|
|
)
|
|
)
|