Hello I have recently pushed my plugin's files to WordPress SVN trunk. Unfortunately, it's not a ready to use release.
I don't want anybody accidentally download this half-baked 'release'.
Can I disable the plugin at the WP plugin directory for some time?
You can delete your files rm and push it into trunk, then there will be no files to download and install.
You can then restore your local copy and not commit anything until you are ready.
Also tag the older files into /tags.
ps. I think there is also an svn command called --keep-local which will keep your local copy and delete your target.
You should use the svn tags to control which version of your plugin is made available through the plugins directory. Make sure there is a Stable tag: header in your plugin's readme.txt and set it to which ever tag you want to use. This page describes how to use the WordPress svn server to control your plugin.
However, I am not sure that there is a way to remove a plugin for the directory. Perhaps you could revert to a working revision, or at least a revision that is not causing damage to existing installs, and make that the stable version. If you have just started development you could always just remove everything but the bare minimum from you plugin, commit it to svn, tag as 0.1 or something and set stable tag to 0.1 and the commit everything. This should suffice to get you started:
plugin/$: vi trunk/plugin.php # make sure plugin is in basic working order
plugin/$: vi trunk/readme.txt # set stable tag to 0.1
plugin/$: svn ci -m "Most basic version of plugin"
plugin/$: svn cp trunk tags/0.1
plugin/$: svn ci -m "Tagging version 0.1"
