Menu
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
969
You can clone from a SVN repo using the git svn clone command. -s = If your SVN repo follows standard naming convention where main source is in “trunk”, branches are created in “branches”. Here we are telling git svn that trunk is the “trunk” directory, maintenance is the “branches” directory etc.
The git svn clone command transforms the trunk, branches, and tags in your SVN repository into a new Git repository. Depending on the structure of your SVN repo, the command needs to be configured differently.
This retrieves all the changes from the SVN repository and applies them on top of your local commits in your current branch. This works like, you know, a rebase between two branches :) You can also use git svn fetch to retrieve the changes from the SVN repository but without applying them to your local branch.
To find information about the history of a file or directory, use the svn log command. svn log will provide you with a record of who made changes to a file or directory, at what revision it changed, the time and date of that revision, and, if it was provided, the log message that accompanied the commit.
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.
174
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
