Add minimal vfs interface

so we can access blobs in git as file like objects

1 files changed, 55 insertions, 0 deletions

diff --git a/tests/test_GitVfs.py b/tests/test_GitVfs.py
new file mode 100644
index 0000000..c4e2694
--- /dev/null
+++ b/tests/test_GitVfs.py
@@ -0,0 +1,55 @@
+# vim: set fileencoding=utf-8 :
+
+"""
+Test L{gbp.git.GitVfs}
+"""
+
+import os
+import gbp.log
+
+from . import context
+
+gbp.log.setup(color=False, verbose=True)
+
+def test_read():
+    repo_dir = context.new_tmpdir(__name__)
+    """
+    Create a repository
+
+    Methods tested:
+         - L{gbp.git.GitVfs.open}
+         - L{gbp.git._File.readline}
+         - L{gbp.git._File.readlines}
+         - L{gbp.git._File.read}
+         - L{gbp.git._File.close}
+
+    >>> import os, gbp.git.vfs
+    >>> repo = gbp.git.GitRepository.create(str(repo_dir))
+    >>> f = file(os.path.join(repo.path, 'foo.txt'), 'w')
+    >>> content = 'al pha\\na\\nb\\nc'
+    >>> f.write('al pha\\na\\nb\\nc')
+    >>> f.close()
+    >>> repo.add_files(repo.path, force=True)
+    >>> repo.commit_all(msg="foo")
+    >>> vfs = gbp.git.vfs.GitVfs(repo, 'HEAD')
+    >>> gf = vfs.open('foo.txt')
+    >>> gf.readline()
+    'al pha\\n'
+    >>> gf.readline()
+    'a\\n'
+    >>> gf.readlines()
+    ['b\\n', 'c']
+    >>> gf.readlines()
+    []
+    >>> gf.readline()
+    ''
+    >>> gf.readline()
+    ''
+    >>> gbp.git.vfs.GitVfs(repo, 'HEAD').open('foo.txt').read() == content
+    True
+    >>> gf = vfs.open('doesnotexist')
+    Traceback (most recent call last):
+    ...
+    IOError: can't get HEAD:doesnotexist: fatal: Path 'doesnotexist' does not exist in 'HEAD'
+    >>> context.teardown()
+    """