Bug 1580914 - Ensure config environment before generating test-info report; r=ahal

Differential Revision: https://phabricator.services.mozilla.com/D46359

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

taskcluster/ci/source-test/file-metadata.yml

@@ -41,6 +41,20 @@ test-info-fission:
     index:
         product: source
         job-name: test-info-fission
+    worker:
+        docker-image: {in-tree: debian7-amd64-build}
     run-on-projects: ['mozilla-central']
+    fetches:
+        toolchain:
+            - linux64-clang
+            - linux64-clang-tidy
+            - linux64-rust
+            - linux64-cbindgen
+            - linux64-nasm
+            - linux64-node
     run:
-        mach: test-info report --show-tests --show-summary --filter-keys=fail-if,skip-if --filter-values='(?<!!)fission' --output-file /builds/worker/artifacts/test-info-fission.json
+        using: run-task
+        cwd: '{checkout}'
+        command: >-
+            source taskcluster/scripts/misc/source-test-common.sh &&
+            ./mach test-info report --show-tests --show-summary --filter-keys=fail-if,skip-if --filter-values='(?<!!)fission' --output-file /builds/worker/artifacts/test-info-fission.json

testing/mach_commands.py

@@ -1213,6 +1213,7 @@ class TestInfoCommand(MachCommandBase):
                     filter_values, filter_keys, show_components, output_file):
         import mozpack.path as mozpath
         import re
+        from mozbuild.build_commands import Build
         from moztest.resolve import TestResolver
 
         def matches_filters(test):
@@ -1246,6 +1247,13 @@ class TestInfoCommand(MachCommandBase):
         else:
             filter_values = []
 
+        try:
+            self.config_environment
+        except BuildEnvironmentNotFoundException:
+            print("Looks like configure has not run yet, running it now...")
+            builder = Build(self._mach_context)
+            builder.configure()
+
         print("Finding tests...")
         resolver = self._spawn(TestResolver)
         tests = list(resolver.resolve_tests(paths=paths, flavor=flavor,