A Tiny Tiny RSS (http://tt-rss.org) plugin to import and export all articles.

• From your TT-RSS directory, run git clone git://github.com/lotrfan/ttrss_import_export_all.git plugins/import_export_all
• Enable the plugin:
  • If you are not going to use the command line importer (see below), you can enable it in the TT-RSS preferences page.
  • If you plan on using the command line importer, you need to enable it as a system plugin by adding import_export_all to the PLUGINS line in config.php.

• In the Feeds tab in preferences, the should be a new pane labeled Import and export everything.
• Click the export button, and be prepared to wait awhile.

• Backup your database.
• Actually backup your database.
• Make sure that the plugin is enabled in config.php (not as a user-enabled plugin).
• Run, as the web server user, php /path/to/tt-rss/update.php --xml_import_all /path/to/exported/file.xml.gz e.g., if your web server runs as http: sudo -u http php /path/to/tt-rss/update.php --xml_import_all /path/to/exported/file.xml.gz
• Wait for a long while (if you have a large number of articles to import).

• Backup your database.
• Actually backup your database.
• Use the file upload form in the Feeds tab in preferences. (The same place as the exporter.)
• If you run into issues, check that the upload_max_filesize and post_max_size settings in php.ini are at least as big as your file you are trying to import.
• The web interface currently does not give any indication of progress; it could take a few minutes to finish importing everything.