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(Updated July 7, 2014, 10:32 a.m.) Status ------ This change has been discarded. Review request for Nepomuk. Repository: nepomuk-core Description ------- This patch adds a file metadata extractor for archive files. This extractor handles any file that can be read using KArchive. The metadata extracted are the uncompressed size of the whole archive (shown in Dolphin, but not formatted like a file size using KB or MB suffixes), and the list of files it contains. The extractor creates one Nepomuk resource per file or directory in the archive (root directory included). These resources have the types ArchiveEntry, and FileDataObject (for files) or Folder (for directories). They also have their nie:url property set to an URL that can be used with the Archive KIO (for instance, "zip:/home/me/archive.zip/one/file" or "tar:/usr/src/linux-3.7.2.tar.xz"). For files, their fileSize is set to the uncompressed size of the file. The files themselves are not read nor uncompressed. I haven't found a way to recursively extract metadata of archived files (for instance, launching the PlainTextExtractor on any plain text file found in the archive). Diffs ----- services/fileindexer/indexer/CMakeLists.txt 3474a43 services/fileindexer/indexer/archiveextractor.h PRE-CREATION services/fileindexer/indexer/archiveextractor.cpp PRE-CREATION services/fileindexer/indexer/nepomukarchiveextractor.desktop PRE-CREATION Diff: https://git.reviewboard.kde.org/r/109811/diff/ Testing ------- nepomukindexer seems to work. Nepomukshow displays meaningful information about the files indexed, the archive itself and the files contained in it. For a test archive, nepomukshow displays these informations : $ nepomukshow test.zip <nepomuk:/res/e5eddbdb-995b-472f-9ef1-3a4ba4c9999d> # Note this ID rdf:type nfo:FileDataObject rdf:type nfo:Archive rdf:type nie:InformationElement nao:created 2013-04-01T13:57:16.586Z nao:lastModified 2013-04-01T13:57:17.414Z nie:lastModified 2013-02-28T20:49:24Z nie:url file:///home/steckdenis/test.zip nie:mimeType application/zip nie:created 2013-02-28T20:49:24Z nfo:fileSize 3368744 nfo:uncompressedSize 4171547 nfo:fileName test.zip kext:indexingLevel 2 Displaying the metadata of a file contained in the archive can be done by passing an URL to nepomukshow : $ nepomukshow 'zip:/home/steckdenis/test.zip/' <nepomuk:/res/71458f55-898c-4374-ad00-6ac5b1d9c9e7> # Note this ID, it is the one of the root compressed directory rdf:type nfo:ArchiveItem rdf:type nfo:Folder rdf:type nfo:FileDataObject rdf:type nfo:DataContainer nao:created 2013-04-01T13:57:17.416Z nao:lastModified 2013-04-01T13:57:17.416Z nie:url <zip:/home/steckdenis/test.zip/> nie:created 1970-01-01T00:00:00Z nfo:belongsToContainer nepomuk:/res/e5eddbdb-995b-472f-9ef1-3a4ba4c9999d # ID of the archive file itself $ nepomukshow 'zip:/home/steckdenis/test.zip/6 My account1.png' <nepomuk:/res/ed73aabc-ce18-4ac7-9db7-f301ce07ffc5> rdf:type nfo:ArchiveItem rdf:type nfo:FileDataObject nao:created 2013-04-01T13:57:17.417Z nao:lastModified 2013-04-01T13:57:17.417Z nie:url <zip:/home/steckdenis/test.zip/6%20My%20account1.png> nie:created 2012-11-21T08:21:08Z nfo:fileSize 330923 # Uncompressed size nfo:belongsToContainer nepomuk:/res/71458f55-898c-4374-ad00-6ac5b1d9c9e7 # ID of the root directory When entering "6 My account1.png" in KRunner, the file is shown as an "Archive entry". When clicking on it, Gwenview is launched and displays the image. Thanks, Denis Steckelmacher
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