Dump build info about target build when installing OTA
Looking up OTA record every time is tedious. Instead, just log the
target build information by mounting target partitions and look for
build.prop files inside mount point.
Test: th
Change-Id: Iafa500931ebc268d1adfd799b2109671c755e0f1
diff --git a/payload_consumer/postinstall_runner_action.cc b/payload_consumer/postinstall_runner_action.cc
index 1d2da43..e489dfc 100644
--- a/payload_consumer/postinstall_runner_action.cc
+++ b/payload_consumer/postinstall_runner_action.cc
@@ -24,6 +24,8 @@
#include <unistd.h>
#include <cmath>
+#include <fstream>
+#include <string>
#include <base/files/file_path.h>
#include <base/files/file_util.h>
@@ -46,6 +48,31 @@
// sample_images.sh file.
const int kPostinstallStatusFd = 3;
+static constexpr bool Contains(std::string_view haystack,
+ std::string_view needle) {
+ return haystack.find(needle) != std::string::npos;
+}
+
+static void LogBuildInfoForPartition(std::string_view mount_point) {
+ static constexpr std::array<std::string_view, 3> kBuildPropFiles{
+ "build.prop", "etc/build.prop", "system/build.prop"};
+ for (const auto& file : kBuildPropFiles) {
+ auto path = std::string(mount_point);
+ if (path.back() != '/') {
+ path.push_back('/');
+ }
+ path += file;
+ LOG(INFO) << "Trying to read " << path;
+ std::ifstream infile(path);
+ std::string line;
+ while (std::getline(infile, line)) {
+ if (Contains(line, "ro.build")) {
+ LOG(INFO) << line;
+ }
+ }
+ }
+}
+
} // namespace
namespace chromeos_update_engine {
@@ -193,6 +220,7 @@
if (!MountPartition(partition)) {
return CompletePostinstall(ErrorCode::kPostInstallMountError);
}
+ LogBuildInfoForPartition(fs_mount_dir_);
if (!utils::UnmountFilesystem(fs_mount_dir_)) {
return CompletePartitionPostinstall(
1, "Error unmounting the device " + mountable_device);
@@ -215,6 +243,7 @@
CompletePostinstall(ErrorCode::kPostInstallMountError);
return;
}
+ LogBuildInfoForPartition(fs_mount_dir_);
base::FilePath postinstall_path(partition.postinstall_path);
if (postinstall_path.IsAbsolute()) {
LOG(ERROR) << "Invalid absolute path passed to postinstall, use a relative"