Handle Windows line endings when reading binary files

Without this change, '.git\HEAD' files, for examples, are sometime
read incorrectly resulting in the current branch to be reset to
"master" when running a "repo init -b xxx" on an already initialized
repository.

Change-Id: I48c7ef85ff81626edf156914329a560e14252f2a

2 files changed, 4 insertions, 4 deletions

diff --git a/git_refs.py b/git_refs.py
index 58c838a6..7feaffb1 100644
--- a/git_refs.py
+++ b/git_refs.py
@@ -139,7 +139,7 @@ class GitRefs(object):
 
   def _ReadLoose1(self, path, name):
     try:
-      fd = open(path, 'rb')
+      fd = open(path)
     except IOError:
       return
 
diff --git a/project.py b/project.py
index 4eca9b67..d4c5afd5 100644
--- a/project.py
+++ b/project.py
@@ -1258,7 +1258,7 @@ class Project(object):
     if is_new:
       alt = os.path.join(self.gitdir, 'objects/info/alternates')
       try:
-        fd = open(alt, 'rb')
+        fd = open(alt)
         try:
           alt_dir = fd.readline().rstrip()
         finally:
@@ -2691,11 +2691,11 @@ class Project(object):
       else:
         path = os.path.join(self._project.worktree, '.git', HEAD)
       try:
-        fd = open(path, 'rb')
+        fd = open(path)
       except IOError as e:
         raise NoManifestException(path, str(e))
       try:
-        line = fd.read()
+        line = fd.readline()
       finally:
         fd.close()
       try: