Backed out 2 changesets (bug 1669879) for docker failures CLOSED TREE

Backed out changeset f484bfd1ad97 (bug 1669879)
Backed out changeset 86061c7de217 (bug 1669879)

taskcluster/ci/config.yml

@@ -539,6 +539,11 @@ workers:
             implementation: generic-worker
             os: linux
             worker-type: 'gecko-{alias}'
+        t-osx-1010:
+            provisioner: releng-hardware
+            implementation: generic-worker
+            os: macosx
+            worker-type: 'gecko-{alias}'
         t-osx-1014:
             provisioner: releng-hardware
             implementation: generic-worker
@@ -557,6 +562,14 @@ workers:
             implementation: docker-worker
             os: linux
             worker-type: 't-linux-xlarge'
+        t-osx-1010-pgo:
+            provisioner: releng-hardware
+            implementation: generic-worker
+            os: macosx
+            worker-type:
+                by-level:
+                    '3': 'gecko-{level}-t-osx-1010'
+                    default: 'gecko-t-osx-1010'
         t-osx-1014-pgo:
             provisioner: releng-hardware
             implementation: generic-worker

taskcluster/scripts/run-task

@@ -414,7 +414,14 @@ def vcs_checkout(source_repo, dest, store_path,
         print('revision is not specified for checkout')
         sys.exit(1)
 
-    if IS_MACOSX or IS_POSIX:
+    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:
         # This is where OCC installs it in the AMIs.