git default (so many maintainers forget this), do not downgrade

Author: seojangho

src/builder.py

@@ -20,7 +20,7 @@ def arch_root():
     with workspace() as path:
         chroot_root = join(path, 'root')
         chroot_working = join(path, 'working')
-        run(['mkarchroot', chroot_root, 'base-devel'], capture=False)
+        run(['mkarchroot', chroot_root, 'base-devel', 'git'], capture=False)
         run(['tee', '-a', chroot_root + '/etc/pacman.conf'], sudo=True,
             stdin='\n[autopkg]\nSigLevel = Never\nServer = file:///repo\n')
         yield ArchRoot(path)

src/plan.py

@@ -53,7 +53,7 @@ def add(self, pkgname, repository):
         :param pkgname: The name of the package.
         :param repository: The Repository.
         """
-        if pkgname in repository.packages and repository.packages[pkgname] == self.buildable.package_info.version:
+        if pkgname in repository.packages and repository.packages[pkgname] < self.buildable.package_info.version:
             self.add_keep(pkgname)
         else:
             self.add_build(pkgname)