Allow to set download format

[m_librarian.git] / m_librarian / download.py

diff --git a/m_librarian/download.py b/m_librarian/download.py
index 361f7aa735549a783e80a0f4adcef6ae67464f43..a66e6925a6e160d4d4913ee89832bc030eaf6b42 100755 (executable)
--- a/m_librarian/download.py
+++ b/m_librarian/download.py
@@ -9,22 +9,103 @@ from .config import get_config
 __all__ = ['download']
 
 
+_format = '%f'
+_compile_format = True
+_compiled_format = '%(file)s'
+
+
+def _do_compile_format():
+    global _format, _compile_format, _compiled_format
+    if _compile_format:
+        _compile_format = False
+        try:
+            _format = get_config().get('download', 'format')
+        except:
+            return
+    got_percent = False
+    compiled = []
+    for c in _format:
+        if c == '%':
+            if got_percent:
+                got_percent = False
+                compiled.append('%')
+            else:
+                got_percent = True
+        else:
+            if got_percent:
+                got_percent = False
+                if c == 'a':
+                    new_format = u'%(author)s'
+                elif c == 'e':
+                    new_format = u'%(extension)s'
+                elif c == 'f':
+                    new_format = u'%(file)s'
+                elif c == 'G':
+                    new_format = u'%(gname)s'
+                elif c == 'g':
+                    new_format = u'%(gtitle)s'
+                elif c == 'l':
+                    new_format = u'%(language)s'
+                elif c == 'n':
+                    new_format = u'%(ser_no)d'
+                elif c == 's':
+                    new_format = u'%(series)s'
+                elif c == 't':
+                    new_format = u'%(title)s'
+                else:
+                    raise ValueError('Bad format specifier "%%%c"' % c)
+                compiled.append(new_format)
+            else:
+                compiled.append(c)
+    _compiled_format = ''.join(compiled)
+
+
 _library_path = None
 
 
-def download(archive, filename, date, path=None):
+def download(book, path=None):
     if path is None:
         global _library_path
         if _library_path is None:
             _library_path = get_config().get('library', 'path')
         path = _library_path
 
-    zf = ZipFile(os.path.join(path, archive),  'r')
-    infile = zf.open(filename)
+    global _compiled_format
+    _do_compile_format()
+    if _compiled_format[-1] in ('\0', '\\', '/'):
+        raise ValueError('Bad format: "%s"' % _compiled_format)
+    bdict = {}
+    bdict['author'] = book.authors[0].fullname
+    bdict['extension'] = book.extension.name
+    bdict['file'] = book.file
+    genre = book.genres[0]
+    bdict['gname'] = genre.name
+    bdict['gtitle'] = genre.title
+    bdict['language'] = book.language.name
+    bdict['ser_no'] = book.ser_no or 0
+    bdict['series'] = book.series
+    bdict['title'] = book.title
+    if '%(extension)s' not in _compiled_format:
+        _compiled_format += '.%(extension)s'
+    filename = _compiled_format % bdict
+    try:
+        os.makedirs(os.path.dirname(filename))
+    except OSError:
+        pass  # Already exists
+    zf = ZipFile(os.path.join(path, book.archive),  'r')
+    infile = zf.open('%s.%s' % (book.file, book.extension.name))
     outfile = open(filename, 'wb')
     copyfileobj(infile, outfile)
     outfile.close()
     infile.close()
     zf.close()
-    dt = mktime(date.timetuple())
+    dt = mktime(book.date.timetuple())
     os.utime(filename, (dt, dt))
+
+
+def test():
+    _do_compile_format()
+    print _compiled_format
+
+if __name__ == '__main__':
+    test()