IGN:Add a message explaining the change of database format

src/calibre/constants.py

@@ -2,7 +2,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2008, Kovid Goyal kovid@kovidgoyal.net'
 __docformat__ = 'restructuredtext en'
 __appname__   = 'calibre'
-__version__   = '0.4.84b7'
+__version__   = '0.4.84b8'
 __author__    = "Kovid Goyal <kovid@kovidgoyal.net>"
 '''
 Various run time constants.

src/calibre/gui2/main.py

@@ -219,6 +219,12 @@ class Main(MainWindow, Ui_MainWindow):
         db = LibraryDatabase2(self.library_path)
         self.library_view.set_database(db)
         if self.olddb is not None:
+            QMessageBox.information(self, 'Database format changed',
+                '''\
+<p>calibre's book storage format has changed. Instead of storing book files in a database, the
+files are now stored in a folder on your filesystem. You will now be asked to choose the folder 
+in which you want to store your books files. Any existing books will be automatically migrated.
+                ''')
             from PyQt4.QtGui import QProgressDialog
             pd = QProgressDialog('', '', 0, 100, self)
             pd.setWindowModality(Qt.ApplicationModal)

src/calibre/library/database.py

@@ -1539,6 +1539,9 @@ ALTER TABLE books ADD COLUMN isbn TEXT DEFAULT "" COLLATE NOCASE;
         for id in indices:
             try:
                 data = self.format(id, format, index_is_id=True)
+                if not data:
+                    failures.append((id, self.title(id, index_is_id=True)))
+                    continue
             except:
                 failures.append((id, self.title(id, index_is_id=True)))
                 continue

src/calibre/translations/__init__.py

@@ -3,3 +3,41 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 '''
 Manage translation of user visible strings.
 '''
+import shutil, tarfile, re, os, subprocess, urllib2
+
+def import_from_launchpad(url):
+    f = open('/tmp/launchpad_export.tar.gz', 'wb')
+    shutil.copyfileobj(urllib2.urlopen(url), f)
+    f.close()
+    tf = tarfile.open('/tmp/launchpad_export.tar.gz', 'r:gz')
+    next = tf.next()
+    while next is not None:
+        if next.isfile() and next.name.endswith('.po'):
+            try:
+                po = re.search(r'-([a-z]{2,3}\.po)', next.name).group(1)
+            except:
+                next = tf.next()
+                continue
+            out = os.path.abspath(os.path.join('.', os.path.basename(po)))
+            print 'Updating', '%6s'%po, '-->', out
+            open(out, 'wb').write(tf.extractfile(next).read())
+        next = tf.next()
+    check_for_critical_bugs()
+    return 0
+ 
+def check_for_critical_bugs():
+    if os.path.exists('.errors'):
+        shutil.rmtree('.errors')
+    pofilter = ('pofilter', '-i', '.', '-o', '.errors',
+                '-t', 'accelerators', '-t', 'escapes', '-t', 'variables',
+                '-t', 'xmltags')
+    subprocess.check_call(pofilter)
+    errs = os.listdir('.errors')
+    if errs:
+        print 'WARNING: Translation errors detected'
+        print 'See the .errors directory and http://translate.sourceforge.net/wiki/toolkit/using_pofilter' 
+
+if __name__ == '__main__':
+    import sys
+    import_from_launchpad(sys.argv[1])
+