gistfile1.py

import os
from time import time
from pygit2 import *

def do_foo():
    # Create a Repository, add an Index, and create Reference.
    os.system('rm -rf /tmp/pygit2test')
    repo = init_repository('/tmp/pygit2test', False)
    fp = open('/tmp/pygit2test/foo', 'w')
    fp.write('Hello, world!')
    fp.close()

    index = repo.index
    index.add('foo')
    index.write()

    message = 'Testing segfault in pygit2.'
    author = ('Test', 'test@example.com', int(time()), 0)
    sha = repo.create_commit(None, author, author, message, index.create_tree(), [])
    repo.create_reference('refs/heads/master', sha)


def main():
    do_foo()
    # Expect objects created in do_foo() to get cleaned up.
    # Crashes here when using a debug version of CPython.
    #   Fatal Python error: pygit2.c:1654 object at 0x7f73cd9b82c0 has negative ref count -2604246222170760230
    #   Aborted
    # pygit2.c:1654 is Py_XDECREF(self->repo) in Index_dealloc.

    # Create another repository and attempt to use the tree object.
    repo = Repository('/tmp/pygit2test/.git')
    ref = repo.lookup_reference('refs/heads/master')
    commit = repo[ref.sha]
    print commit.tree.sha   # This line is segfaulting (non-debug).
    # 2  0x0000000101d42294 in Commit_get_tree (commit=0x10042918f) at pygit2.c:1049

if __name__ == '__main__':
    main()