GitRepository: implemet checkout_files() method

Makes it possible to only checkout certain files from a branch, instead
of switching to the branch. Add a new method instead of extending
checkout() in order to keep it consistent. That is, otherwise checkout()
would have totally different outcome depending on whether paths were
defined of not.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/gbp/git/repository.py b/gbp/git/repository.py
index 689430f..848fd57 100644
--- a/gbp/git/repository.py
+++ b/gbp/git/repository.py
@@ -925,6 +925,19 @@ class GitRepository(object):
         """
         self._git_command("checkout", ["--quiet", treeish])
 
+    def checkout_files(self, treeish, paths):
+        """
+        Checkout files from a treeish. Branch will not be changed.
+
+        @param treeish: the treeish from which to check out files
+        @type treeish: C{str}
+        @param paths: list of files to checkout
+        @type treeish: C{list} of C{str}
+        """
+        args = GitArgs("--quiet", treeish)
+        args.add_true(paths, '--', paths)
+        self._git_command("checkout", args.args)
+
     def has_treeish(self, treeish):
         """
         Check if the repository has the treeish object I{treeish}.