Ensure all builtin metadata source plugins define version and minimum_calibre_version

src/calibre/ebooks/metadata/sources/amazon.py

@@ -779,6 +779,8 @@ def parse_language(self, pd):
 class Amazon(Source):
 
     name = 'Amazon.com'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads metadata and covers from Amazon')
 
     capabilities = frozenset(['identify', 'cover'])

src/calibre/ebooks/metadata/sources/big_book_search.py

@@ -30,6 +30,8 @@ def get_urls(br, tokens):
 class BigBookSearch(Source):
 
     name = 'Big Book Search'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads multiple book covers from Amazon. Useful to find alternate covers.')
     capabilities = frozenset(['cover'])
     config_help_message = _('Configure the Big Book Search plugin')
@@ -58,4 +60,3 @@ def test():
 
 if __name__ == '__main__':
     test()
-

src/calibre/ebooks/metadata/sources/douban.py

@@ -153,6 +153,7 @@ class Douban(Source):
     name = 'Douban Books'
     author = 'Li Fanxi'
     version = (2, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
 
     description = _('Downloads metadata and covers from Douban.com. '
             'Useful only for chinese language books.')

src/calibre/ebooks/metadata/sources/edelweiss.py

@@ -165,6 +165,8 @@ def render_comments(self, desc):
 class Edelweiss(Source):
 
     name = 'Edelweiss'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads metadata and covers from Edelweiss - A catalog updated by book publishers')
 
     capabilities = frozenset(['identify', 'cover'])

src/calibre/ebooks/metadata/sources/google.py

@@ -163,6 +163,8 @@ def get_text(extra, x):
 class GoogleBooks(Source):
 
     name = 'Google'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads metadata and covers from Google Books')
 
     capabilities = frozenset({'identify', 'cover'})

src/calibre/ebooks/metadata/sources/google_images.py

@@ -17,6 +17,8 @@
 class GoogleImages(Source):
 
     name = 'Google Images'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads covers from a Google Image search. Useful to find larger/alternate covers.')
     capabilities = frozenset(['cover'])
     config_help_message = _('Configure the Google Image Search plugin')

src/calibre/ebooks/metadata/sources/isbndb.py

@@ -19,6 +19,8 @@
 class ISBNDB(Source):
 
     name = 'ISBNDB'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads metadata from isbndb.com')
 
     capabilities = frozenset(['identify'])

src/calibre/ebooks/metadata/sources/openlibrary.py

@@ -13,6 +13,8 @@
 class OpenLibrary(Source):
 
     name = 'Open Library'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads covers from The Open Library')
 
     capabilities = frozenset(['cover'])

src/calibre/ebooks/metadata/sources/overdrive.py

@@ -26,6 +26,8 @@
 class OverDrive(Source):
 
     name = 'Overdrive'
+    version = (1, 0, 0)
+    minimum_calibre_version = (2, 80, 0)
     description = _('Downloads metadata and covers from Overdrive\'s Content Reserve')
 
     capabilities = frozenset(['identify', 'cover'])

src/calibre/ebooks/metadata/sources/ozon.py

@@ -22,6 +22,8 @@
 
 class Ozon(Source):
     name = 'OZON.ru'
+    minimum_calibre_version = (2, 80, 0)
+    version = (1, 0, 0)
     description = _('Downloads metadata and covers from OZON.ru (updated)')
 
     capabilities = frozenset(['identify', 'cover'])