commit fdf005161523d9873a281f2a96d51dd4a3261f4f
author Allie Wood <alliewood@chromium.org> Mon Mar 02 13:34:55 2015 -0800
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> Tue Mar 24 21:32:40 2015 +0000
tree e4acbe1153bec8388ba66fc5fc85ff5f8a4a7172
parent de942f30cf986cf6bfc55fb5f9af6d7fea4ae51b

update_engine: Add fds for the source partitions.

Add new fds for the source partition, one for the rootfs and another for
the kernel. These are opened if we have a delta update with minor
version 2.

This change also adds support for changing the minor versions in tests.
There is a new private member, supported_minor_version_, which defaults
to kSupportedMinorPayloadVersion. It is set in the unit tests with calls
to SetSupportedVersion.

BUG=chromium:463573
TEST=`FEATURES=test emerge-link update_engine`

Change-Id: Ib988c91eb450b2499c615ae65b271691dfd9c651
Reviewed-on: https://chromium-review.googlesource.com/260950
Trybot-Ready: Allie Wood <alliewood@chromium.org>
Tested-by: Allie Wood <alliewood@chromium.org>
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Allie Wood <alliewood@chromium.org>

install_plan.cc

diff --git a/install_plan.cc b/install_plan.cc
index d991a35..7b97876 100644
--- a/install_plan.cc
+++ b/install_plan.cc
@@ -21,6 +21,8 @@
                          const string& metadata_signature,
                          const string& install_path,
                          const string& kernel_install_path,
+                         const string& source_path,
+                         const string& kernel_source_path,
                          const string& public_key_rsa)
     : is_resume(is_resume),
       is_full_update(is_full_update),
@@ -31,6 +33,8 @@
       metadata_signature(metadata_signature),
       install_path(install_path),
       kernel_install_path(kernel_install_path),
+      source_path(source_path),
+      kernel_source_path(kernel_source_path),
       kernel_size(0),
       rootfs_size(0),
       hash_checks_mandatory(false),
@@ -56,7 +60,9 @@
           (metadata_size == that.metadata_size) &&
           (metadata_signature == that.metadata_signature) &&
           (install_path == that.install_path) &&
-          (kernel_install_path == that.kernel_install_path));
+          (kernel_install_path == that.kernel_install_path) &&
+          (source_path == that.source_path) &&
+          (kernel_source_path == that.kernel_source_path));
 }
 
 bool InstallPlan::operator!=(const InstallPlan& that) const {
@@ -74,6 +80,8 @@
             << ", metadata signature: " << metadata_signature
             << ", install_path: " << install_path
             << ", kernel_install_path: " << kernel_install_path
+            << ", source_path: " << source_path
+            << ", kernel_source_path: " << kernel_source_path
             << ", hash_checks_mandatory: " << utils::ToString(
                 hash_checks_mandatory)
             << ", powerwash_required: " << utils::ToString(