in amend, remove symlink targets before creating them
amend's symlink command isn't idempotent, so if you restart after the
symlinks have been completed then the second installation attempt will
fail. Work around this by deleting all symlink targets before
creating symlinks.
Bug: 2020011
diff --git a/tools/releasetools/amend_generator.py b/tools/releasetools/amend_generator.py
index 3e8af13..70e71d4 100644
--- a/tools/releasetools/amend_generator.py
+++ b/tools/releasetools/amend_generator.py
@@ -180,6 +180,7 @@
def MakeSymlinks(self, symlink_list):
"""Create symlinks, given a list of (dest, link) pairs."""
+ self.DeleteFiles([i[1] for i in symlink_list])
self.script.extend(["symlink %s %s" % (i[0], self._FileRoot(i[1]))
for i in sorted(symlink_list)])