X-Git-Url: https://git.distorted.org.uk/~mdw/stgit/blobdiff_plain/9d15ccd85e36ef5cd554aaf98f1c37ef0433697f..05d593c088d335e86573a2d4bc63ff308bde759b:/stgit/git.py

diff --git a/stgit/git.py b/stgit/git.py
index fb75a85..5abe902 100644
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -434,6 +434,22 @@ def switch(tree_id):
 
     __set_head(tree_id)
 
+def reset(tree_id = None):
+    """Revert the tree changes relative to the given tree_id. It removes
+    any local changes
+    """
+    if not tree_id:
+        tree_id = get_head()
+
+    cache_files = __tree_status(tree_id = tree_id)
+    rm_files =  [x[1] for x in cache_files if x[0] in ['D']]
+
+    checkout(tree_id = tree_id, force = True)
+    __set_head(tree_id)
+
+    # checkout doesn't remove files
+    map(os.remove, rm_files)
+
 def pull(location, head = None, tag = None):
     """Fetch changes from the remote repository. At the moment, just
     use the 'git fetch' scripts