Keep using first used identifier when pkgname casing changes

Signed-off-by: Florian Pritz <bluewind@xinu.at>

DB.py

@@ -22,6 +22,10 @@ class DB:
             c.execute('drop table files_old;')
             self._set_version(2)
 
+        if version < 3:
+            c.execute('create table archive_identifier_aliases (from_identifier text, identifier text, primary key (`from_identifier`)) without rowid;')
+            self._set_version(3)
+
         self.db.commit()
 
     def _get_version(self):
@@ -36,6 +40,22 @@ class DB:
                 (filename,))
         self.db.commit()
 
+    def add_item_identifier(self, identifier):
+        c = self.db.cursor()
+        c.execute('insert into archive_identifier_aliases (from_identifier, identifier) values (?, ?)',
+                (identifier.lower(), identifier))
+        self.db.commit()
+
+    def get_item_identifier(self, identifier):
+        c = self.db.cursor()
+        c.execute('select identifier from archive_identifier_aliases where from_identifier = ?', (identifier.lower(),))
+        row = c.fetchone()
+        if row is not None:
+            return row['identifier']
+        else:
+            self.add_item_identifier(identifier)
+            return self.get_item_identifier(identifier)
+
     def exists(self, filename):
         c = self.db.cursor()
         c.execute('select uploaded from files where filename = ?', (filename,))

upload_pkg_internetarchive.py

@@ -73,6 +73,10 @@ class ArchiveUploader:
         metadata['description'] = ArchiveUploader.DESCRIPTION.format(pkgname=pkgname, pkgdesc=pkgdesc, url=pkginfo['url'], license=pkginfo['license'])
         metadata['rights'] = 'License: ' + pkginfo['license']
 
+        # archive.org requires case-insensitively unique identifiers, but
+        # doesn't perform the mapping themselves. Thus, we do it here.
+        identifier = self.db.get_item_identifier(identifier)
+
         for files in chunker(all_files, self.chunksize):
             try:
                 res = self.ia.upload(identifier, files=files, metadata=metadata)