[RFC] Mirroring svn

[Harvey Harrison <harvey.harrison@gmail.com>]

After the discussions lately regarding the gcc svn mirror.  I'm coming
up with a recipe to set up your own git-svn mirror.  Suggestions on the
following.

// Create directory and initialize git
mkdir gcc
cd gcc
git init
// add the remote site that currently mirrors gcc
// I have chosen the name gcc.gnu.org *1* as my local name to refer to
// this choose something else if you like
git remote add gcc.gnu.org git://git.infradead.org/gcc.git
// fetching someone else's remote branches is not a standard thing to do
// so we'll need to edit our .git/config file
// you should have a section that looks like:
[remote "gcc.gnu.org"]
	url = git://git.infradead.org/gcc.git
	fetch = +refs/heads/*:refs/remotes/gcc.gnu.org/*
// infradead's mirror puts the gcc svn branches in its own namespace
// refs/remotes/gcc.gnu.org/*
// change our fetch line accordingly
[remote "gcc.gnu.org"]
	url = git://git.infradead.org/gcc.git
	fetch = +refs/remotes/gcc.gnu.org/*:refs/remotes/gcc.gnu.org/*
// fetch the remote data from the mirror site
git remote update
// set up git-svn
// gcc has the standard trunk/branches/tags naming so use -s
// add a prefix so git-svn uses the metadata we just got from the
// mirror so we don't have to get everything from the svn server
// the --prefix must match whatever you chose in *1*, the trailing
// slash is important.
git svn init -s --prefix=gcc.gnu.org/ svn://gcc.gnu.org/svn/gcc
// your config should look like this now:
[core]
	repositoryformatversion = 0
	filemode = true
	bare = false
	logallrefupdates = true
[remote "gccmirror"]
	url = git://git.infradead.org/gcc.git
	fetch = +refs/heads/*:refs/remotes/gccmirror/*
[svn-remote "svn"]
	url = svn://gcc.gnu.org/svn/gcc
	fetch = trunk:refs/remotes/gcc.gnu.org/trunk
	branches = branches/*:refs/remotes/gcc.gnu.org/*
	tags = tags/*:refs/remotes/gcc.gnu.org/tags/*
// Try and get more revisions from the svn server
// this may take a little while the first time as git-svn builds
// metadata to allow bi-directional operation
git svn fetch


Happy Hacking

Harvey Harrison