[GitHub] [netbeans-tools] matthiasblaesing commented on pull request #43: Implement a proxy chooser for the Update Centers

[GitBox <gi...@apache.org>]

matthiasblaesing commented on pull request #43:
URL: https://github.com/apache/netbeans-tools/pull/43#issuecomment-774485194


   Thank you for having a look. It is a bit more sophisticated:
   
   - First the main download server is checked if an `update.xml.gz` for the target version is present. The file is not fetched, but only a HEAD request issued to check if the file is present. The check happens here: https://github.com/apache/netbeans-tools/blob/8d8fa220d5482427ca381fdcf1724f09b5b04007/proxy-chooser/updates.php#L268. This information is used as an indicator to use the mirror network. The updates.xml.gz used as base is read from the local file.
   - If the file is not not on the download server, the archive is checked (again a HEAD request): https://github.com/apache/netbeans-tools/blob/8d8fa220d5482427ca381fdcf1724f09b5b04007/proxy-chooser/updates.php#L269. If the file is present again the local file is used to serve the updates.xml.gz.
   - If a CI build (again check via HEAD request) is found, the updates.xml.gz from the build is used. I admit, this is a hack, but IMHO a hack on the same level as the redirects in .htaccess. I thought about parsing the .htaccess in the version folder, but that seemed similar unstable as directly checking the target systems.
   
   The `updates.xml.gz` is cached locally to reduce strain on the target servers and the VM.
   
   What am I missing?


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