From https://github.com/artspb/phpstorm-library-plugin I gather it's possibe to create a super simple plugin for autocompletions. No JDK needed, just text files in a ZIP.
But I can't get it to work. That demo plugin doesn't work, nor with any changes I make to it. Always the same error:
> Fail to load plugin descriptor from file my-plugin.zip
This demo plugin does work: https://plugins.jetbrains.com/plugin/8136-navmine-demo but it's set up completely different. I don't want to write Java classes. I don't need logic, just some PHP classes that PS will read.
I'm using PhpStorm 2017.4
Nothing in the logs when it fails to install.