Bug 1293733: accept pushdate from command line; r=garndt

MozReview-Commit-ID: BrGiowlMVCa

--HG--
extra : rebase_source : e47b9e18b9dbc9e617f9bad165318a74c4e96e36
extra : source : fc1ed3fd8584161ae4693bd1c956e8254368b6bc

.taskcluster.yml

@@ -102,6 +102,7 @@ tasks:
               ln -s /home/worker/artifacts artifacts &&
               ./mach --log-no-times taskgraph decision
               --pushlog-id='{{pushlog_id}}'
+              --pushdate='{{pushdate}}'
               --project='{{project}}'
               --message='{{comment}}'
               --owner='{{owner}}'

taskcluster/docs/parameters.rst

@@ -45,6 +45,10 @@ Push Information
 ``pushlog_id``
    The ID from the ``hg.mozilla.org`` pushlog
 
+``pushdate``
+   The timestamp of the push to the repository that triggered this decision
+   task.  Expressed as an integer seconds since the UNIX epoch.
+
 Tree Information
 ----------------
 

taskcluster/mach_commands.py

@@ -133,6 +133,11 @@ class MachCommands(MachCommandBase):
                      dest='pushlog_id',
                      required=True,
                      default=0)
+    @CommandArgument('--pushdate',
+                     dest='pushdate',
+                     required=True,
+                     type=int,
+                     default=0)
     @CommandArgument('--owner',
                      required=True,
                      help='email address of who owns this graph')

taskcluster/taskgraph/decision.py

@@ -107,6 +107,7 @@ def get_decision_parameters(options):
         'message',
         'project',
         'pushlog_id',
+        'pushdate',
         'owner',
         'level',
         'target_tasks_method',

taskcluster/taskgraph/task/legacy.py

@@ -373,11 +373,9 @@ class LegacyTask(base.Task):
         cmdline_interactive = params.get('interactive', False)
 
         # Default to current time if querying the head rev fails
-        push_epoch = int(time.time())
         vcs_info = query_vcs_info(params['head_repository'], params['head_rev'])
         changed_files = set()
         if vcs_info:
-            push_epoch = vcs_info.pushdate
 
             logger.debug(
                 '{} commits influencing task scheduling:'.format(len(vcs_info.changesets)))
@@ -387,7 +385,7 @@ class LegacyTask(base.Task):
                     desc=c['desc'].splitlines()[0].encode('ascii', 'ignore')))
                 changed_files |= set(c['files'])
 
-        pushdate = time.strftime('%Y%m%d%H%M%S', time.gmtime(push_epoch))
+        pushdate = time.strftime('%Y%m%d%H%M%S', time.gmtime(params['pushdate']))
 
         # Template parameters used when expanding the graph
         parameters = dict(gaia_info().items() + {
@@ -405,7 +403,7 @@ class LegacyTask(base.Task):
             'year': pushdate[0:4],
             'month': pushdate[4:6],
             'day': pushdate[6:8],
-            'rank': push_epoch,
+            'rank': params['pushdate'],
             'owner': params['owner'],
             'level': params['level'],
         }.items())