Converting SVN repository to git

Art Haas· Jun 15, 2005, 18:47 UTC · lore

Hi.

The utilities for converting CVS repositories to git repos have become part of the standard git package, and hopefully they'll be used to convert many CVS based projects to git. I've not seen anything, though, on switching Subversion repositories to git. Has there been any public activity in writing a tool/script to do this? Perhaps some offline discussion about doing this?

Thanks in advance.

Art Haas

-- 
Man once surrendering his reason, has no remaining guard against absurdities
the most monstrous, and like a ship without rudder, is the sport of every wind.

-Thomas Jefferson to James Smith, 1822

Adam Mercer· Jun 15, 2005, 22:02 UTC · re: Art Haas · lore

Re: Converting SVN repository to git

On 15/06/05, Art Haas <ahaas@airmail.net> wrote:

Show 6 quoted lines

> The utilities for converting CVS repositories to git repos have become
> part of the standard git package, and hopefully they'll be used to
> convert many CVS based projects to git. I've not seen anything, though,
> on switching Subversion repositories to git. Has there been any public
> activity in writing a tool/script to do this? Perhaps some offline
> discussion about doing this?

You could use something like svn2cvs (http://svn2cvs.tigris.org) and then use the cvs2git tools.

Cheers

Adam

Seth W. Klein· Jun 18, 2005, 03:26 UTC · re: Art Haas · lore

Re: Converting SVN repository to git

On Wed, Jun 15, 2005 at 01:47:20PM -0500, Art Haas wrote:

Show 5 quoted lines

> 
> [....] I've not seen anything, though,
> on switching Subversion repositories to git. Has there been any public
> activity in writing a tool/script to do this? Perhaps some offline
> discussion about doing this?

The following script is what I used to convert a simple svn repository. It doesn't handle branches or tags and contains buggy use of grep and inscrutable uncommented use of sed but it should be a starting place for someone with a more complex repository available for testing.

export GIT_AUTHOR_EMAIL=sk@sethwklein.net
export GIT_COMMITTER_EMAIL=sk@sethwklein.net
svn co -r 1 file:///home/sk/rep/oakheart/trunk oakheart
cd oakheart
git-init-db
for REV in `seq 2 692`; do
    echo -n $REV' '
    svn update -r $REV > .svnupdate
    sed -nr 's/^A +//p' .svnupdate \
    | while read F; do [ -f "$F" ] && echo "$F"; done \
    | xargs -r git-update-cache --add --
    sed -nr 's/^D +//p' .svnupdate \ 
    | while read F; do git-ls-files | grep "^$F"'\(/\|$\)'; done \
    | xargs -r git-update-cache --remove --
    sed -nr 's/^U +//p' .svnupdate \
    | while read F; do [ -f "$F" ] && echo "$F"; done \
    | xargs -r git-update-cache --
    PARENT=
    [ -f .git/HEAD ] &&
        PARENT='-p '`cat .git/HEAD`
    svn log -r $REV | sed -n '1,3d;$d;H;/^$/!{s/.*//;x;s/\n//;p}' \
    | git-commit-tree `git-write-tree` $PARENT > .git/HEAD
done

Cheers, Seth W. Klein

-- 
sk@sethwklein.net     AIM: sethwklein     http://www.sethwklein.net/