bug 1237610 - use a mach setting to control telemetry submission. r=gps

Differential Revision: https://phabricator.services.mozilla.com/D4597

--HG--
extra : rebase_source : 4ff227ab9792f84c0a839c43f6ef91f5786cef69

build/mach_bootstrap.py

@@ -190,7 +190,7 @@ def bootstrap(topsrcdir, mozilla_dir=None):
 
     def telemetry_handler(context, data):
         # We have not opted-in to telemetry
-        if 'BUILD_SYSTEM_TELEMETRY' not in os.environ:
+        if not context.settings.build.telemetry:
             return
 
         telemetry_dir = os.path.join(get_state_dir()[0], 'telemetry')
@@ -239,7 +239,7 @@ def bootstrap(topsrcdir, mozilla_dir=None):
             return
 
         # We have not opted-in to telemetry
-        if 'BUILD_SYSTEM_TELEMETRY' not in os.environ:
+        if not context.settings.build.telemetry:
             return
 
         # Every n-th operation

python/mozbuild/mozbuild/mach_commands.py

@@ -2842,3 +2842,12 @@ class Analyze(MachCommandBase):
                 res = 'Please specify the location of cost_dict.gz with --path.'
                 print ('Could not find cost_dict.gz at %s' % path, res, sep='\n')
                 return 1
+
+
+@SettingsProvider
+class TelemetrySettings():
+    config_settings = [
+        ('build.telemetry', 'boolean', """
+Enable submission of build system telemetry.
+        """.strip(), False),
+    ]