Move the Git interface scripts from git-interface/ to aurweb/git/. Use
setuptools to automatically create wrappers which can be installed using
`python3 setup.py install`. Update the configuration files, the test
suite as well as the INSTALL and README files to reflect these changes.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Add a test to make sure that Trusted Users, who already voted on a
proposal, do not receive any reminders.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Instead of only checking whether the notification script is called with
the correct parameters, actually invoke the real notify script and check
whether proper notifications are generated.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Move and rename the existing git-interface tests such that tests for
other scripts can be added easily.

In particular, the following changes are made:

* Move the existing tests from git-interface/test/ to test/.
* Rename t0001-auth.sh to t1100-git-auth.sh.
* Rename t0002-serve.sh to t1200-git-serve.sh.
* Rename t0003-update.sh to t1300-git-update.sh.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Determine the top-level directory before running tests and make all
script paths relative to that directory.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Instead of using relative imports, add support for installing the config
and db Python modules to a proper location using setuptools. Change all
git-interface scripts to access those modules from the search path.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Add tests for common scenarios that should be detected/handled by the
update hook.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Add tests for common scenarios that should be detected/handled by the
git-serve script.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Test the authentication script with an invalid key type and with a key
that does not exist in the database.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

Add basic tests for the Git interface. The test suite is based on
sharness.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>