commit 4b85c7f04d09795cd9324b3bedd703a90ab73005
author Peter Nordström <pnordstrom@google.com> Wed Feb 20 11:41:25 2019 -0800
committer Alex Van Damme <atv@google.com> Fri Feb 22 21:06:02 2019 +0000
tree 55ec79aedd3a6ecf6a418d2a2bfc944f79fa0afa
parent 21546c8c0afb0df1df7bab6f27ff607caba4458b

Prevent overwriting of files when saving image

b/124321825

Change-Id: Ib1aff2dc5d1ab352c639064a99de61a0fc5d7ab0
(cherry picked from commit 04d62521868e28e2206587d821f7bd2e9ff0bd0d)

snapshot

diff --git a/snapshot b/snapshot
index cfff51a..455d41f 100755
--- a/snapshot
+++ b/snapshot
@@ -166,11 +166,11 @@
       thread.start()
 
   def get_filename(self):
-    if self.oneshot:
-      filename = self.prefix + '.' + self.suffix
-    else:
+    while True:
       filename = self.prefix + str(self.num).zfill(4) + '.' + self.suffix
       self.num = self.num + 1
+      if not os.path.exists(filename):
+        break
 
     return filename