Detect stable versions in trunk

[Rarst]

trunk can be stable version, but this cannot be figured on SVN structure level. Need to either fetch readme.txt or go through API.

[tamlyn]

It's worse than that. readme.txt can contain Stable tag: trunk which tells us that the latest stable release is in trunk but to know what the actual version number is we need to parse the main plugin PHP file and the only way to find that file is to download and parse all PHP files in the root of the plugin folder.

That would severely slow down the update process.

[lavoiesl]

We could also be sneaky and parse the plugin’s page on wordpress.org

The XPath is //a[@itemprop="downloadUrl"]/text() ;)

[lavoiesl]

This can now be closed.