[ros-dev] GIT mirror

[Alexander Potashev]

Hi, All!

On 16:34 Thu 08 Jan     , Colin Finck wrote:
> Aleksey Bragin wrote:
> > Since Arty just mentioned GIT, I think it's about time to uncover a  
> > ReactOS GIT mirror I've been setting up recent couple of weeks.
> 
> The SVN branches are still missing there. Any way to readd them properly?
> :-)

I have just realized that it's possible! The problem is that the
branches in the repository at git://git.reactos.org/ are 'remote branches',
i.e. the are situated in .git/refs/remotes/ (even in the "main"
repository!). That's a big problem for gitweb, because it only shows the
branches in '.git/refs/heads/'.

Solution 1:
	Make Aleksey tidy up the repo so that it would have the svn
	branches as its local branches:
	(in the repo at git://git.reactos.org/)
		git checkout origin/<branch>
		git checkout -b local-<branch>	# this creates a local branch
	But there are some issues regarding this solution:
		1. it needs 'git pull ...' (frankly, a bit more
			complex command...) in crontab
		2. there could be some problems with ambiguous branch
		names if you want to exactly keep the names of branches
		in svn.
	However, there's a ugly hack: to copy refs from
	.git/refs/remotes/ to .git/refs/heads (they should be also
	updated after every svn update)

Solution 2: (to not annoy Aleksey ;) )
	This is not a bad solution, it just won't fix gitweb (althought,
	Aleksey says that branches in gitweb are redundant).

	The solution is to fetch branches from .git/refs/remotes/ in the
	"main" repository too (not only from .git/refs/heads/):
	add the following line to .git/config in your local repo under
	"[remote "origin"]" section:
		fetch = +refs/remotes/*:refs/remotes/origin/*
	(now there should be two "fetch" lines)


	Now, to switch to a branch: (say, "xen")
		git checkout origin/xen
	
	Please note, that origin/xen is a remote branch, you can't do
	some operations on it (you can't commit AFAIK, ...). So, if you
	want to start working from the origin/xen branch, you firstly
	need to create a local branch (Git reminds about that):
		git checkout -b xen
	Now you can say 'git branch' to see you brand new branch.


(especially to Aleksey)
I really don't know whether it's possible to push the changes back to
the svn repo through our Git mirror, but I'm affraid, the answer is
"NO!!!". It seems that you should import the svn repo directly to push
back into it.

'git checkout' is really painful to write every time, so you can add an
alias (to ~/.gitconfig for user-wide alias), I have the following
aliases:
	[alias]
		br = branch
		co = checkout
		ci = commit --verbose		# --verbose shows the commit diff when commiting
		st = status -uall
		di = diff			# I have no idea why is it in my .gitconfig, I don't use it ;)
	

> 
> Best regards,
> 
> Colin
> 
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					Alexander