From c1a5e26fd905df829c6e2bbc24b0500af4a5b357 Mon Sep 17 00:00:00 2001
From: Tianjie Xu <xunchang@google.com>
Date: Wed, 22 May 2019 14:34:12 -0700
Subject: Implement an update simulator to verify BB OTA packages on host

Implement the simulator runtime and build the updater simulator as a host
executable. The code to parse the target-files and mocks the block devices
will be submitted in the follow-up.

Bug: 131911365
Test: unit tests pass

Change-Id: Ib1ba939aec8333ca68a45139514d772ad7a27ad8
---
 updater/update_simulator_main.cpp | 76 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 updater/update_simulator_main.cpp

(limited to 'updater/update_simulator_main.cpp')

diff --git a/updater/update_simulator_main.cpp b/updater/update_simulator_main.cpp
new file mode 100644
index 000000000..d10453c2f
--- /dev/null
+++ b/updater/update_simulator_main.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2019 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 <string>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+
+#include "otautil/error_code.h"
+#include "otautil/paths.h"
+#include "updater/blockimg.h"
+#include "updater/install.h"
+#include "updater/simulator_runtime.h"
+#include "updater/target_files.h"
+#include "updater/updater.h"
+
+int main(int argc, char** argv) {
+  // Write the logs to stdout.
+  android::base::InitLogging(argv, &android::base::StderrLogger);
+
+  if (argc != 3 && argc != 4) {
+    LOG(ERROR) << "unexpected number of arguments: " << argc << std::endl
+               << "Usage: " << argv[0] << " <source_target-file> <ota_package>";
+    return 1;
+  }
+
+  // TODO(xunchang) implement a commandline parser, e.g. it can take an oem property so that the
+  // file_getprop() will return correct value.
+
+  std::string source_target_file = argv[1];
+  std::string package_name = argv[2];
+
+  // Configure edify's functions.
+  RegisterBuiltins();
+  RegisterInstallFunctions();
+  RegisterBlockImageFunctions();
+
+  TemporaryFile temp_saved_source;
+  TemporaryFile temp_last_command;
+  TemporaryDir temp_stash_base;
+
+  Paths::Get().set_cache_temp_source(temp_saved_source.path);
+  Paths::Get().set_last_command_file(temp_last_command.path);
+  Paths::Get().set_stash_directory_base(temp_stash_base.path);
+
+  TemporaryFile cmd_pipe;
+
+  TemporaryDir source_temp_dir;
+  TargetFiles source(source_target_file, source_temp_dir.path);
+
+  Updater updater(std::make_unique<SimulatorRuntime>(&source));
+  if (!updater.Init(cmd_pipe.release(), package_name, false)) {
+    return 1;
+  }
+
+  if (!updater.RunUpdate()) {
+    return 1;
+  }
+
+  LOG(INFO) << "\nscript succeeded, result: " << updater.GetResult();
+
+  return 0;
+}
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