Move the parse of last_install to recovery-persist
The recovery-persist used to look for the related recovery logs in
persist storage, and copy them under /data/misc/recovery during the
normal boot process.
As we also want to find out the sideload information from last_install,
it makes more sense to move the parse & report of non-a/b metrics to
recovery-persist. Thus we can avoid the race condition of the file
system between the native code and RecoverySystem.
Bug: 114278989
Test: unit test pass, check the event buffer for metrics report
Change-Id: I32d7b2b831bc74a61a70af9a2f0b8a7e9b3e36ee
diff --git a/otautil/parse_install_logs.cpp b/otautil/parse_install_logs.cpp
new file mode 100644
index 0000000..13a7299
--- /dev/null
+++ b/otautil/parse_install_logs.cpp
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "otautil/parse_install_logs.h"
+
+#include <unistd.h>
+
+#include <optional>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/parseint.h>
+#include <android-base/properties.h>
+#include <android-base/strings.h>
+
+constexpr const char* OTA_SIDELOAD_METRICS = "ota_sideload";
+
+// Here is an example of lines in last_install:
+// ...
+// time_total: 101
+// bytes_written_vendor: 51074
+// bytes_stashed_vendor: 200
+std::map<std::string, int64_t> ParseRecoveryUpdateMetrics(const std::vector<std::string>& lines) {
+ constexpr unsigned int kMiB = 1024 * 1024;
+ std::optional<int64_t> bytes_written_in_mib;
+ std::optional<int64_t> bytes_stashed_in_mib;
+ std::map<std::string, int64_t> metrics;
+ for (const auto& line : lines) {
+ size_t num_index = line.find(':');
+ if (num_index == std::string::npos) {
+ LOG(WARNING) << "Skip parsing " << line;
+ continue;
+ }
+
+ std::string num_string = android::base::Trim(line.substr(num_index + 1));
+ int64_t parsed_num;
+ if (!android::base::ParseInt(num_string, &parsed_num)) {
+ LOG(ERROR) << "Failed to parse numbers in " << line;
+ continue;
+ }
+
+ if (android::base::StartsWith(line, "bytes_written")) {
+ bytes_written_in_mib = bytes_written_in_mib.value_or(0) + parsed_num / kMiB;
+ } else if (android::base::StartsWith(line, "bytes_stashed")) {
+ bytes_stashed_in_mib = bytes_stashed_in_mib.value_or(0) + parsed_num / kMiB;
+ } else if (android::base::StartsWith(line, "time")) {
+ metrics.emplace("ota_time_total", parsed_num);
+ } else if (android::base::StartsWith(line, "uncrypt_time")) {
+ metrics.emplace("ota_uncrypt_time", parsed_num);
+ } else if (android::base::StartsWith(line, "source_build")) {
+ metrics.emplace("ota_source_version", parsed_num);
+ } else if (android::base::StartsWith(line, "temperature_start")) {
+ metrics.emplace("ota_temperature_start", parsed_num);
+ } else if (android::base::StartsWith(line, "temperature_end")) {
+ metrics.emplace("ota_temperature_end", parsed_num);
+ } else if (android::base::StartsWith(line, "temperature_max")) {
+ metrics.emplace("ota_temperature_max", parsed_num);
+ } else if (android::base::StartsWith(line, "error")) {
+ metrics.emplace("ota_non_ab_error_code", parsed_num);
+ } else if (android::base::StartsWith(line, "cause")) {
+ metrics.emplace("ota_non_ab_cause_code", parsed_num);
+ }
+ }
+
+ if (bytes_written_in_mib) {
+ metrics.emplace("ota_written_in_MiBs", bytes_written_in_mib.value());
+ }
+ if (bytes_stashed_in_mib) {
+ metrics.emplace("ota_stashed_in_MiBs", bytes_stashed_in_mib.value());
+ }
+
+ return metrics;
+}
+
+std::map<std::string, int64_t> ParseLastInstall(const std::string& file_name) {
+ if (access(file_name.c_str(), F_OK) != 0) {
+ return {};
+ }
+
+ std::string content;
+ if (!android::base::ReadFileToString(file_name, &content)) {
+ PLOG(ERROR) << "Failed to read " << file_name;
+ return {};
+ }
+
+ if (content.empty()) {
+ LOG(INFO) << "Empty last_install file";
+ return {};
+ }
+
+ std::vector<std::string> lines = android::base::Split(content, "\n");
+ auto metrics = ParseRecoveryUpdateMetrics(lines);
+
+ // LAST_INSTALL starts with "/sideload/package.zip" after a sideload.
+ if (android::base::Trim(lines[0]) == "/sideload/package.zip") {
+ int type = (android::base::GetProperty("ro.build.type", "") == "user") ? 1 : 0;
+ metrics.emplace(OTA_SIDELOAD_METRICS, type);
+ }
+
+ return metrics;
+}