Re: Switch from svn to git and modify repo completely

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Am 21.11.2011 08:02, schrieb Jonathan Nieder:
> The section "CHECKLIST FOR SHRINKING A REPOSITORY" from the
> git-filter-branch(1) manual page has some hints.  In particular, "git
> clone --no-hardlinks" still _copies_ all objects --- you probably
> would want "git clone file://$(pwd)/repo-orig" to make sure the
> ordinary transfer negotiation kicks in.
> 
> It's very important that the documentation not be misleading, so if
> you can point to places where the wording can be less confusing, that
> would be very welcome.

it would be fantastic if exactly this information is noted in the
manual. For me it is not really clear what is the difference between a
git clone with and without --no-hardlinks.

I was now able to convert my svn repo to a git repo and split the new
git repo in several different ones, including the complete history.

Here a short summary for all how need to do the same.
At first convert the svn into a git reposity:
git svn clone file:///path/to/svn -A authors -s gitrepo.git

To create the authors file, check the man page.

To get a list of all files:
git show --pretty="format:" --name-only startrev..endrev | sort | uniq

Maybe you want to remove some branches from the repo because svn users
used it in a completely wrong way:
git branch -rd badbranch

Now clone the repo and remove files from it you do not want anymore:
git clone gitrepo.git tofilter.git
cd tofilter.git
git filter-branch -f --tree-filter 'rm -Rf file1 file2.bla dir1 \
projekt1/dir2' --prune-empty -- --all
git gc
cd ..

Repeat this step for all combination you need.

Now create a bare repository and enable some options to use it as a
central repo:
git clone --bare tofilter.git tofilter_bare.git
cd tofilter_bare.git
git config core.sharedRepository 1
git config receive.denyNonFastForwards true
git gc
cd ..

Now you can copy the repo to the target server/directory and clone it
from there.

Bye
Matthias

-- 

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook
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