Now trychange can store patches in a Git repo

scm.py

Index: scm.py
diff --git a/scm.py b/scm.py
index 30bb3d17ea49bd74c0a83af490bbc486d60e3f41..d53b4f4ed75f2cc29476003d7602549735b45626 100644
--- a/scm.py
+++ b/scm.py
@@ -141,6 +141,10 @@ class GIT(object):
     return results
 
   @staticmethod
+  def IsWorkTreeDirty(cwd):
+    return GIT.Capture(['status', '-s'], cwd=cwd) != ''
+
+  @staticmethod
   def GetEmail(cwd):
     """Retrieves the user email address if known."""
     # We could want to look at the svn cred when it has a svn remote but it
@@ -390,6 +394,17 @@ class GIT(object):
     return os.path.abspath(os.path.join(cwd, root))
 
   @staticmethod
+  def GetGitDir(cwd):
+    return os.path.abspath(GIT.Capture(['rev-parse', '--git-dir'], cwd=cwd))
+
+  @staticmethod
+  def IsInsideWorkTree(cwd):
+    try:
+      return GIT.Capture(['rev-parse', '--is-inside-work-tree'], cwd=cwd)
+    except (OSError, subprocess2.CalledProcessError):
+      return False
+
+  @staticmethod
   def GetGitSvnHeadRev(cwd):
     """Gets the most recently pulled git-svn revision."""
     try: