How to git-svn clone the last n revisions from a Subversion repository

Question

Problem  How do you create a shallow copy with git-svn from a Subversion repository  e g  how do you pull only the last three revisions   The git clone command can get the last n revisions from a Git repository if you use the option --depth  i e  you get a shallow copy of the repository  Example   git clone --depth 3 git   some repo myshallowcopyrepo   Is there a similar option for git-svn   My discoveries so far  So far I ve only found the -rN option where N is the revision to pull  Example   git svn clone -rN svn   some repo   According to the documentation there is the possibility to use -r REVNUMBER HEAD  I tried the following to get the last 3 revisions which returned an error message     git svn clone --prefix svn  -s -rHEAD 3 HEAD http   some svn repo   revision argument  HEAD 3 HEAD not understood by git-svn   So I replaced HEAD 3 with the actual number of the third but last revision 534  That worked  but that requires me to first figure out the revision number of the third but last commit     git svn clone --prefix svn  -s -r534 HEAD http   some svn repo     Documentation  git-clone  git-svn

User · Answer

I find myself using the following often to get a limited number of revisions out of our huge subversion tree (we're soon reaching svn revision 35000).

# checkout a specific revision
git svn clone -r N svn://some/repo/branch/some-branch
# enter it and get all commits since revision 'N'
cd some-branch
git svn rebase

And a good way to find out where a branch started is to do a svn log it and find the first one on the branch (the last one listed when doing):

svn log --stop-on-copy svn://some/repo/branch/some-branch

So far I have not really found the hassle worth it in tracking all branches. It takes too much time to clone and svn and git don't work together as good as I would like. I tend to create patch files and apply them on the git clone of another svn branch.

User · Answer

7 years later  in the desert  a tumbleweed blows by      I wasn t satisfied with the accepted answer so I created some scripts to do this for you available on Github   These should help anyone who wants to use git svn clone but doesn t want to clone the entire repository and doesn t want to hunt for a specific revision to clone from in the middle of the history  maybe you re cloning a bunch of repos    Here we can just clone the last N revisions   Use git svn clone to clone the last 50 revisions    -u    The SVN URL to clone   -l    The limit of revisions   -o    The output directory    git-svn-cloneback sh -u https   server project trunk -l 50 -o myproj --authors-file svn-authors txt   Find the previous N revision from an SVN repo    -u    The SVN URL to clone   -l    The limit of revisions    svn-lookback sh -u https   server project trunk -l 5

User · Answer

You ve already discovered the simplest way to specify a shallow clone in Git-SVN  by specifying the SVN revision number that you want to start your clone at    -r REV HEAD     For example  git svn clone -s -r1450 HEAD some svn repo  Git s data structure is based on pointers in a directed acyclic graph  DAG   which makes it trivial to walk back n commits   But in SVN   and therefore in Git-SVN  you will have to find  the revision number yourself

[git] How to git-svn clone the last n revisions from a Subversion repository?

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