Faster NEOS download and auto removal of NEOS image after installation (#478)

old-commit-hash: 4610a6e4d4c5ad051e1e6c64f28b26691c45ba2f

installer/updater/updater

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:32706ce66da7e33d299597ad1ecfccf6f1d2b0c03769f2a6efa90be23019c890
-size 2505704
+oid sha256:4e8c704ed800b27d8ac0dda64aafcbc93239012ab65f3ac7540db5965844b2f0
+size 2501608

selfdrive/manager.py

@@ -41,9 +41,9 @@ def unblock_stdout():
     os._exit(os.wait()[1])
 
 if __name__ == "__main__":
-  if os.path.isfile("/init.qcom.rc") \
-      and (not os.path.isfile("/VERSION") or int(open("/VERSION").read()) < 8):
-
+  neos_update_required = os.path.isfile("/init.qcom.rc") \
+    and (not os.path.isfile("/VERSION") or int(open("/VERSION").read()) < 8)
+  if neos_update_required:
     # update continue.sh before updating NEOS
     if os.path.isfile(os.path.join(BASEDIR, "scripts", "continue.sh")):
       from shutil import copyfile
@@ -54,6 +54,9 @@ if __name__ == "__main__":
     subprocess.check_call(["git", "clean", "-xdf"], cwd=BASEDIR)
     os.system(os.path.join(BASEDIR, "installer", "updater", "updater"))
     raise Exception("NEOS outdated")
+  elif os.path.isdir("/data/neoupdate"):
+    from shutil import rmtree
+    rmtree("/data/neoupdate")
 
   unblock_stdout()