Help debugging git-svn

[Edmundo Carmona Antoranz <eantoranz@gmail.com>]

Hello, Eric, Everybody!

I need your help getting git-svn to clone a repository.

I had already cloned it once but then a few months ago I discovered
the authors map file and it's like the first time I did a checkout
using git.... well, perhaps not that much, but close. Seeing the real
names of people when using log, blame, etc is a major difference...
so, back to my tale of sorts.

The thing is that I have already tried to clone it _several_ times and
it always breaks at one point or another (or rather, at one revision
of a branch or another). I have come to think that it's more or less
at the same revisions that it breaks but I'm not 100% certain.

What I _think_ is the cause of most of the problems is that in our
repo people have misplaced branches _inside_ other branches, at least
for a few revisions before realizing their mistake and deleting it.

So.... say I have a standard layout.

trunk
branches
tags

Then at one point I copy trunk to branches/a

Later on I copy trunk to branches/b

Later on I copy trunk to branches/b/c (instead of branches/c)

And a few revisions later I realize my mistake and copy branches/b/c
to branches/c and remove branches/b/c

I infer this because I'm seeing that on one of the revisions where git
svn usually breaks when fetching has the content of the project inside
a directory, like, say I have directories A, B and C in the project
and I'm seeing that git svn is fetching a revision where the all the
paths of the files are prepended by a directory that looks like a
branch, like this:

branch_name/A/filea.txt
branch_name/A/fileb.txt
etc etc

Instead of
A/filea.txt
A/fileb.txt

So... throw some ideas around that... and then, could you tell a
non-perl developer how to debug it? Perhaps increase verbosity?

One of the errors I see often when fetching (my memory tells me that
it's associated to the branch-in-branch problem but I'm not completely
sure right now), looks like this:

1 [main] perl 5652 cygwin_exception::open_stackdumpfile: Dumping stack
trace to perl.exe.stackdump

And then, in the file:

Exception: STATUS_ACCESS_VIOLATION at rip=0048360C10C
rax=0000000601E4BFF8 rbx=000000005219E248 rcx=000000060003A590
rdx=0000000000000000 rsi=000000000000A950 rdi=0000000000000004
r8 =0000000000000000 r9 =0000000000000000 r10=0000000000230000
r11=000000048D78607A r12=0000000000000003 r13=000006FFFFF54A98
r14=0000000601E18030 r15=000006FFFFF54AB0
rbp=0000000000054A88 rsp=000000000022B810
program=C:\Program Files\Git\usr\bin\perl.exe, pid 5652, thread main
cs=0033 ds=002B es=002B fs=0053 gs=002B ss=002B


With my very flawed knowledge of perl I have seen that the process is
getting to Ra.pm around here:

our $AUTOLOAD;
sub AUTOLOAD {
    my $class = ref($_[0]);
    $AUTOLOAD =~ s/^${class}::(SUPER::)?//;
    return if $AUTOLOAD =~ m/^[A-Z]/;

    my $self = shift;
    no strict 'refs';

    my $method = $self->can("invoke_$AUTOLOAD")
        or die "no such method $AUTOLOAD";

    no warnings 'uninitialized';
    $method->(@$self, @_);
}

The value of $AUTOLOAD there is 'finish_report' but I don't know (or
at least see) where $method->(@$self, @_) is going.

Well... I think that's enough of a mess of a mail (sorry about that).
Hope I was able to provide enough information to at least move a
little bit forward.

Thanks in advance.