Put journal and nvme stats in bootlog (#22849)

* Run commands and put output in bootlog

* log nvme

* fix indent

* cereal without event

* use regular array
old-commit-hash: fa0cbe5d40

selfdrive/common/util.cc

@@ -209,6 +209,22 @@ std::string dir_name(std::string const &path) {
   return path.substr(0, pos);
 }
 
+std::string check_output(const std::string& command) {
+  char buffer[128];
+  std::string result;
+  std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(command.c_str(), "r"), pclose);
+
+  if (!pipe) {
+    return "";
+  }
+
+  while (fgets(buffer, std::size(buffer), pipe.get()) != nullptr) {
+    result += std::string(buffer);
+  }
+
+  return result;
+}
+
 struct tm get_time() {
   time_t rawtime;
   time(&rawtime);

selfdrive/common/util.h

@@ -89,6 +89,8 @@ std::string readlink(const std::string& path);
 bool file_exists(const std::string& fn);
 bool create_directories(const std::string &dir, mode_t mode);
 
+std::string check_output(const std::string& command);
+
 inline void sleep_for(const int milliseconds) {
   std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
 }

selfdrive/loggerd/bootlog.cc

@@ -5,7 +5,14 @@
 #include "selfdrive/common/swaglog.h"
 #include "selfdrive/loggerd/logger.h"
 
+
 static kj::Array<capnp::word> build_boot_log() {
+  std::vector<std::string> bootlog_commands;
+  if (Hardware::TICI()) {
+    bootlog_commands.push_back("journalctl");
+    bootlog_commands.push_back("sudo nvme smart-log --output-format=json /dev/nvme0");
+  }
+
   MessageBuilder msg;
   auto boot = msg.initEvent().initBoot();
 
@@ -30,6 +37,20 @@ static kj::Array<capnp::word> build_boot_log() {
     }
   }
 
+  // Gather output of commands
+  i = 0;
+  auto commands = boot.initCommands().initEntries(bootlog_commands.size());
+  for (auto &command : bootlog_commands) {
+    auto lentry = commands[i];
+
+    lentry.setKey(command);
+
+    const std::string result = util::check_output(command);
+    lentry.setValue(capnp::Data::Reader((const kj::byte*)result.data(), result.size()));
+
+    i++;
+  }
+
   boot.setLaunchLog(util::read_file("/tmp/launch_log"));
   return capnp::messageToFlatArray(msg);
 }