git-svn: how to change the svn username on dcommit?

问题

I cloned a SVN repository into a git repository using git svn clone. At that point in time, I did not have a username at that site and hence didn't use the --username option of clone. As I can now commit to the SVN repository with my new username, I would like to add that username. Without it, dcommit simply fails:

% LANG=C git svn dcommit 
Committing to <THE URL> ...
RA layer request failed: Server sent unexpected return value (405 Method Not Allowed) in response to MKACTIVITY request for '/svn/!svn/act/0ceca4c5-f7b4-4432-94be-0485559a6040' at /usr/lib/git-core/git-svn line 945.

Is there a way to tell git about a new username? The git-svn manual doesn't seem to help: adding a username is only allowed on init and branch. I don't know how git works with SVN internally, but I guess there should be a way to add a username afterwards.

Note that I am using SVN over http.

回答1:

I think you can use this procedure (from the git svn manpage) to create a clone of your existing svn repository, but change the git svn init step so that it specifies a username. Your new git-svn repository will then have a username.

# Clone locally - make sure the refs/remotes/ space matches the server

    mkdir project
    cd project
    git init
    git remote add origin server:/pub/project
    git config --replace-all remote.origin.fetch '+refs/remotes/*:refs/remotes/*'
    git fetch
# Prevent fetch/pull from remote git server in the future,
# we only want to use git svn for future updates
    git config --remove-section remote.origin
# Create a local branch from one of the branches just fetched

    git checkout -b master FETCH_HEAD
# Initialize 'git svn' locally (be sure to use the same URL and -T/-b/-t options as were used on server)
    git svn init --username my_new_name http://svn.example.com/project
# Pull the latest changes from Subversion
    git svn rebase

回答2:

Note that if you specify a username, you would not be able to dcommit a merge commit, not before Git 2.16.x/2.17 (Q1 2018).
That is because "git svn dcommit" did not take into account the fact that a svn+ssh:// URL with a username@ (typically used for pushing) refers to the same SVN repository without the username@ and failed when svn.pushmergeinfo option is set.

See commit 8aaed89 (15 Sep 2017) by Jason Merrill (jwmerrill).
^{(Merged by Jason Merrill -- jwmerrill -- in commit 8aaed89, 17 Sep 2017)}

git-svn: fix svn.pushmergeinfo handling of svn+ssh usernames.

Previously, svn dcommit of a merge with svn.pushmergeinfo set would get error messages like

merge parent <X> for <Y> is on branch svn+ssh://gcc.gnu.org/svn/gcc/trunk, 
which is not under the git-svn root svn+ssh://jason@gcc.gnu.org/svn/gcc!"

So, let's call remove_username (as we do for svn info) before comparing rooturl to branchurl.

回答3:

You can specify the username in the dcommit command, e.g.

git svn dcommit --username=isapir

来源：https://stackoverflow.com/questions/11956986/git-svn-how-to-change-the-svn-username-on-dcommit