Add support for creating symbolic links on Windows

Replace all calls to os.symlink with platform_utils.symlink.

The Windows implementation calls into the CreateSymbolicLinkW Win32
API, as os.symlink is not supported.

Separate the Win32 API definitions into a separate module
platform_utils_win32 for clarity.

Change-Id: I0714c598664c2df93383734e609d948692c17ec5

1 files changed, 2 insertions, 1 deletions

diff --git a/manifest_xml.py b/manifest_xml.py
index 55d25a79..05651c6c 100644
--- a/manifest_xml.py
+++ b/manifest_xml.py
@@ -32,6 +32,7 @@ else:
 import gitc_utils
 from git_config import GitConfig
 from git_refs import R_HEADS, HEAD
+import platform_utils
 from project import RemoteSpec, Project, MetaProject
 from error import ManifestParseError, ManifestInvalidRevisionError
 
@@ -166,7 +167,7 @@ class XmlManifest(object):
     try:
       if os.path.lexists(self.manifestFile):
         os.remove(self.manifestFile)
-      os.symlink(os.path.join('manifests', name), self.manifestFile)
+      platform_utils.symlink(os.path.join('manifests', name), self.manifestFile)
     except OSError as e:
       raise ManifestParseError('cannot link manifest %s: %s' % (name, str(e)))