Re: Python & RA

On Jan 19, 2010, at 7:25 , Роман Донченко wrote:

>> On Mon, 2010-01-18 at 20:12 -0600, Daniel Eggert wrote:
>>> I've been trying to use python to use Subversion’s Remote Access library, but it crashes.
>>>
>>>
>>>
>>> #!/usr/bin/python
>>>
>>> import os
>>> import svn
>>> import svn.ra
>>> import svn.client
>>> import svn.core
>>>
>>> svn.ra.initialize()
>>>
>>>
>>> class Callbacks(svn.ra.Callbacks):
>>> def __init__(self):
>>> self.auth_baton = svn.core.svn_auth_open([
>>> svn.client.get_simple_provider(),
>>> svn.client.get_username_provider(),
>>> ])
>>> svn.core.svn_auth_set_parameter(self.auth_baton,
>>> svn.core.SVN_AUTH_PARAM_DEFAULT_USERNAME,
>>> "eggert")
>>> svn.core.svn_auth_set_parameter(self.auth_baton,
>>> svn.core.SVN_AUTH_PARAM_DEFAULT_PASSWORD,
>>> "aaa")
>>> def open_tmp_file(self, pool):
>>> path = '/tmp/'
>>> (fd, fn) = tempfile.mkstemp(dir=path)
>>> os.close(fd)
>>> return fn
>>> def cancel_func(self):
>>> if False:
>>> return svn.core.SVN_ERR_CANCELLED
>>> return 0
>>>
>>> c = Callbacks()
>>> svn.ra.open2("http:/svn.example.com/svn", c, {})
>>>
>>>
>>>
>>> My backtace looks like this:
>>>
>>> 0 ??? 0x00000001005390f0 0 + 4300443888
>>> 1 libapr-1.0.dylib 0x000000010110cde5 apr_hash_get + 11
>>> 2 libsvn_ra-1.0.dylib 0x00000001001f4d8f svn_ra_open3 + 186
>>> 3 libsvn_ra-1.0.dylib 0x00000001001f3572 svn_ra_open2 + 28
>>> 4 _ra.so 0x0000000100735b61 0x100730000 + 23393
>>> 5 org.python.python 0x000000010000b173 PyObject_Call + 112
>>> 6 org.python.python 0x0000000100084b6f PyEval_CallObjectWithKeywords + 175
>>> 7 org.python.python 0x0000000100083a9e _PyBuiltin_Init + 14071
>>> 8 org.python.python 0x00000001000891df PyEval_EvalFrameEx + 15001
>>> 9 org.python.python 0x000000010008accf PyEval_EvalCodeEx + 1803
>>> 10 org.python.python 0x00000001000893aa PyEval_EvalFrameEx + 15460
>>> 11 org.python.python 0x000000010008accf PyEval_EvalCodeEx + 1803
>>> 12 org.python.python 0x000000010008ad62 PyEval_EvalCode + 54
>>> 13 org.python.python 0x00000001000a265a Py_CompileString + 78
>>> 14 org.python.python 0x00000001000a2723 PyRun_FileExFlags + 150
>>> 15 org.python.python 0x00000001000a423d PyRun_SimpleFileExFlags + 704
>>> 16 org.python.python 0x00000001000b0286 Py_Main + 2718
>>> 17 org.python.python.app 0x0000000100000e6c start + 52
>>>
>>>
>>> What am I doing wrong?
>>>
>>> /Daniel
>>>
>
> The config argument isn't passed to the C API correctly ATM... you can use a NULL config if that's enough for your needs:
>
> svn.ra.open2("http://svn.example.com/svn", c, None)
>
> Roman (who didn't get the original mail because of the Gmane mishap).

Thanks. That works. Should I file a bug about that not working?

I got svn.ra.open2() and svn.ra.get_dir() working, but I'm unable to make the receiver/baton part of
        l = svn.ra.get_log2(session, None, 1, 4, 0, False, False, [], receiver, None)
work. The receiver is supposed to be a svn_log_entry_receiver_t. I tried to do
        def receiver(baton, entry):
            print entry
but I get
        TypeError: argument number 8:
How does swig wrap svn_log_entry_receiver_t?

I have not been able to find any python sample code that uses svn.ra.

/Daniel