Bug 1611240 - Adding telemetry for gecko build id and version r=Dexter

Differential Revision: https://phabricator.services.mozilla.com/D61641

--HG--
extra : moz-landing-system : lando

toolkit/components/telemetry/Scalars.yaml

@@ -480,6 +480,42 @@ browser.usage:
       - 'main'
       - 'content'
 
+gecko:
+  version:
+    bug_numbers:
+      - 1611240
+    description: >
+      The version of the Gecko engine, example: '74.0a1'.
+      It consists of the major and minor version, followed by the release life cycle phase.
+      'a' stands for alpha or nightly, 'b' stands for beta.
+      The number behind the release life cycle phase indicates minor releases within the phase.
+    expires: never
+    kind: string
+    notification_emails:
+      - gfx-telemetry-alerts@mozilla.com
+      - ktaeleman@mozilla.com
+    products:
+      - 'geckoview_streaming'
+    record_in_processes:
+      - 'main'
+    release_channel_collection: opt-out
+  build_id:
+    bug_numbers:
+      - 1611240
+    description: >
+      The build id of the Gecko engine, example: '20200205124310'.
+      It contains the time the build was created and is used as a unique id for the build.
+    expires: never
+    kind: string
+    notification_emails:
+      - gfx-telemetry-alerts@mozilla.com
+      - ktaeleman@mozilla.com
+    products:
+      - 'geckoview_streaming'
+    record_in_processes:
+      - 'main'
+    release_channel_collection: opt-out
+
 extensions.updates:
   rdf:
     bug_numbers:

toolkit/components/telemetry/geckoview/streaming/metrics.yaml

@@ -10,6 +10,36 @@
 $schema: moz://mozilla.org/schemas/glean/metrics/1-0-0
 
 geckoview:
+  version:
+    description: >
+      The version of the Gecko engine, example: 74.0a1
+    type: string
+    lifetime: application
+    gecko_datapoint: gecko.version
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1611240
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1611240#c2
+    notification_emails:
+      - gfx-telemetry-alerts@mozilla.com
+      - ktaeleman@mozilla.com
+    expires: never
+
+  build_id:
+    description: >
+      The Buildid of the Gecko engine, example: 20200205124310
+    type: string
+    lifetime: application
+    gecko_datapoint: gecko.build_id
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1611240
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1611240#c2
+    notification_emails:
+      - gfx-telemetry-alerts@mozilla.com
+      - ktaeleman@mozilla.com
+    expires: never
+
   page_load_progress_time:
     type: timing_distribution
     time_unit: millisecond

toolkit/xre/nsAppRunner.cpp

@@ -4517,6 +4517,12 @@ nsresult XREMain::XRE_mainRun() {
   }
 #endif /* MOZ_INSTRUMENT_EVENT_LOOP */
 
+  // Send Telemetry about Gecko version and buildid
+  Telemetry::ScalarSet(Telemetry::ScalarID::GECKO_VERSION,
+                       NS_ConvertASCIItoUTF16(gAppData->version));
+  Telemetry::ScalarSet(Telemetry::ScalarID::GECKO_BUILD_ID,
+                       NS_ConvertASCIItoUTF16(gAppData->buildID));
+
 #if defined(MOZ_SANDBOX) && defined(XP_LINUX)
   // If we're on Linux, we now have information about the OS capabilities
   // available to us.