tree 29f05605ab97c6fdf291217c769231421d8de983
parent e49bfbca21a3aeec31472aac7774c8dec94a4f17
author Jakub Czapiga <jacz@semihalf.com> 1648719769 +0200
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> 1652518221 +0000

futility: Rework file opening and mapping

Adding calls to cbfstool truncate command requires file to be closed and
not mapped to work correctly. This patch reworks file opening and
mapping to make it simpler. It also moves responsibility from main
command runner to command functions to correctly operate on their
input/output files.

BUG=b:197114807
TEST=sudo FEATURES=test emerge vboot_reference
TEST=build and boot while chromeos-bootimage and boot on volteer/voxel
     platform
BRANCH=none

Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: Iee24fdc43f2a57f54c65f6e55cdd26adf44a0b29
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3575324
Tested-by: Jakub Czapiga <czapiga@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Commit-Queue: Julius Werner <jwerner@chromium.org>
Auto-Submit: Jakub Czapiga <czapiga@google.com>