Implement update_engine weave commands

The new WeaveServiceInterface abstracs the registration and interaction
with weave whenever present. The compilation and usage of weave is
based on the BRILLO_USE_WEAVE flag.

When enabled, update_engine registers the "_updater" component with
methods to force-check for an update and change channels.

Bug: 24386758
Bug: 24386768
Test: Deployed on edison, weave commands and state available online.

Change-Id: Ic49111772e123b8a2b1971da92fe65785f186ccd

1 files changed, 43 insertions, 0 deletions

diff --git a/update_status_utils.cc b/update_status_utils.cc
index ff039b8c..96858531 100644
--- a/update_status_utils.cc
+++ b/update_status_utils.cc
@@ -20,6 +20,21 @@
 
 using update_engine::UpdateStatus;
 
+namespace {
+
+const char kWeaveStatusIdle[] = "idle";
+const char kWeaveStatusCheckingForUpdate[] = "checkingForUpdate";
+const char kWeaveStatusUpdateAvailable[] = "updateAvailable";
+const char kWeaveStatusDownloading[] = "downloading";
+const char kWeaveStatusVerifying[] = "verifying";
+const char kWeaveStatusFinalizing[] = "finalizing";
+const char kWeaveStatusUpdatedNeedReboot[] = "updatedNeedReboot";
+const char kWeaveStatusReportingErrorEvent[] = "reportingErrorEvent";
+const char kWeaveStatusAttemptingRollback[] = "attemptingRollback";
+const char kWeaveStatusDisabled[] = "disabled";
+
+}  // namespace
+
 namespace chromeos_update_engine {
 
 const char* UpdateStatusToString(const UpdateStatus& status) {
@@ -50,6 +65,34 @@ const char* UpdateStatusToString(const UpdateStatus& status) {
   return nullptr;
 }
 
+const char* UpdateStatusToWeaveStatus(const UpdateStatus& status) {
+  switch (status) {
+    case UpdateStatus::IDLE:
+      return kWeaveStatusIdle;
+    case UpdateStatus::CHECKING_FOR_UPDATE:
+      return kWeaveStatusCheckingForUpdate;
+    case UpdateStatus::UPDATE_AVAILABLE:
+      return kWeaveStatusUpdateAvailable;
+    case UpdateStatus::DOWNLOADING:
+      return kWeaveStatusDownloading;
+    case UpdateStatus::VERIFYING:
+      return kWeaveStatusVerifying;
+    case UpdateStatus::FINALIZING:
+      return kWeaveStatusFinalizing;
+    case UpdateStatus::UPDATED_NEED_REBOOT:
+      return kWeaveStatusUpdatedNeedReboot;
+    case UpdateStatus::REPORTING_ERROR_EVENT:
+      return kWeaveStatusReportingErrorEvent;
+    case UpdateStatus::ATTEMPTING_ROLLBACK:
+      return kWeaveStatusAttemptingRollback;
+    case UpdateStatus::DISABLED:
+      return kWeaveStatusDisabled;
+  }
+
+  NOTREACHED();
+  return nullptr;
+}
+
 bool StringToUpdateStatus(const std::string& s,
                           UpdateStatus* status) {
   if (s == update_engine::kUpdateStatusIdle) {