sign_virt_apex: do not use truncate (/usr/bin)
We've found signing can be run where truncate is not available.
Error:
No such file or directory: 'truncate'
Use python's truncate() instead.
Bug: 193504286
Test: atest sign_virt_apex_test
Change-Id: I9c8a78ba381274b406ba509f5f3f7ddd049bd60f
diff --git a/apex/sign_virt_apex.py b/apex/sign_virt_apex.py
index b659b73..e782bd2 100644
--- a/apex/sign_virt_apex.py
+++ b/apex/sign_virt_apex.py
@@ -250,7 +250,8 @@
RunCommand(args, cmd)
# libavb expects to be able to read the maximum vbmeta size, so we must provide a partition
# which matches this or the read will fail.
- RunCommand(args, ['truncate', '-s', '65536', vbmeta_img])
+ with open(vbmeta_img, 'a') as f:
+ f.truncate(65536)
class TempDirectory(object):