Turn meta.svn.wordpress.org into a single-project repository (remove /sites/)

[nacin]

meta.svn.wordpress.org was created for general "meta" stuff, with the possible belief that it'd be for all sorts of things. Thus, it was set up like this:

• sites/
  • branches/
  • tags/
  • trunk/

But it really should have been flat: branches/, tags/, trunk/. This extra complexity makes it more difficult to adequately mirror meta.svn to meta.git.wordpress.org, as we wouldn't then be able to make that move later without further re-jiggering.

[nacin]

I wanted to document this, but before I did so, I already came up with a better plan. Instead of this:

• Remove /sites/
• Break everything currently checking out /sites/ (excluding wordpress.org, as those externals are pinned)
• Mirror meta.git using the technique outlined in ​http://programmers.stackexchange.com/questions/184540/how-can-i-clone-an-svn-repository-that-changed-layouts-with-git-maintaining-full. I confirmed this worked using an svnadmin dump of meta.svn.
• Fix whatever was broken

I will do it this way instead:

• Mirror meta.svn.wordpress.org/sites to meta.git
• Assume that /sites/ will disappear at a later point
• Convert ​https://github.com/wordpress/meta-environment.git to use the Git mirror (one less thing to break)
• Announce the change on make/meta
• Remove /sites/
• Fix dotorg

[nacin]

@dd32 mentioned we could also remove branches/tags/trunk, though we may want it for potential versioning of sites or something else along those lines. It makes no difference to git.

However, I'm going to leave this alone for now regardless. #1385 is closed — a Git mirror exists.

[obenland]

@nacin @dd32 Is there anything else that needs to be done here?

[dd32]

Nothing has changed in the last two years, I don't know if we're ever going to bother changing this in the future.

This ticket is still open for:

Assume that /sites/ will disappear at a later point

[dd32]

I'm going to assume that this is never going to happen.

I think we're more likely to move off SVN before this ever happened.