Bug 1551957 - Allow for osx 10.14 in CI for source tasks. r=ahal

Allow for osx 10.14 in CI for source tasks.

Differential Revision: https://phabricator.services.mozilla.com/D31297

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

taskcluster/scripts/run-task

@@ -27,6 +27,7 @@ import errno
 import io
 import json
 import os
+import platform
 import random
 import re
 import shutil
@@ -37,7 +38,6 @@ import subprocess
 import urllib.error
 import urllib.request
 
-
 FINGERPRINT_URL = 'http://taskcluster/secrets/v1/secret/project/taskcluster/gecko/hgfingerprint'
 FALLBACK_FINGERPRINT = {
     'fingerprints':
@@ -405,7 +405,12 @@ def vcs_checkout(source_repo, dest, store_path,
         sys.exit(1)
 
     if IS_MACOSX:
+        release = platform.mac_ver()
+        versionNums = release[0].split('.')[:2]
+        os_version = "%s.%s" % (versionNums[0], versionNums[1])
         hg_bin = '/tools/python27-mercurial/bin/hg'
+        if os_version == "10.14":
+            hg_bin = 'hg'
     elif IS_POSIX:
         hg_bin = 'hg'
     elif IS_WINDOWS:

taskcluster/taskgraph/transforms/job/mach.py

@@ -44,6 +44,9 @@ def configure_mach(config, job, taskdesc):
     run = job['run']
 
     command_prefix = 'cd $GECKO_PATH && ./mach '
+    if job['worker-type'].endswith('1014'):
+        command_prefix = 'cd $GECKO_PATH && LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 ./mach '
+
     mach = run['mach']
     if isinstance(mach, dict):
         ref, pattern = next(iter(mach.items()))

taskcluster/taskgraph/transforms/job/python_test.py

@@ -40,6 +40,8 @@ def configure_python_test(config, job, taskdesc):
     if worker['os'] == 'macosx' and run['python-version'] == 3:
         # OSX hosts can't seem to find python 3 on their own
         run['python-version'] = '/tools/python36/bin/python3.6'
+        if job['worker-type'].endswith('1014'):
+            run['python-version'] = '/usr/local/bin/python3'
 
     # defer to the mach implementation
     run['mach'] = 'python-test --python {python-version} --subsuite {subsuite}'.format(**run)

taskcluster/taskgraph/transforms/job/run_task.py

@@ -130,6 +130,8 @@ def generic_worker_run_task(config, job, taskdesc):
         command = ['C:/mozilla-build/python3/python3.exe', 'run-task']
     elif is_mac:
         command = ['/tools/python36/bin/python3.6', 'run-task']
+        if job['worker-type'].endswith('1014'):
+            command = ['/usr/local/bin/python3', 'run-task']
     else:
         command = ['./run-task']