Merge branch '2.0' into 2.1

Author: dunglas

brigade.js

@@ -18,10 +18,20 @@ const coverage = (event, project) => {
     ];
 
     job.env = {
-        COVERALLS_RUN_LOCALLY: '1',
+        CI_NAME: 'brigade',
+        CI_BUILD_NUMBER: event.buildID,
         COVERALLS_REPO_TOKEN: project.secrets.coverallsToken,
     };
 
+    const gh = JSON.parse(event.payload);
+    if (gh.pull_request) {
+      job.env.CI_PULL_REQUEST = gh.pull_request.number.toString();
+      job.env.CI_BRANCH = gh.pull_request.base.ref;
+    } else if (gh.ref) {
+      const parts = gh.ref.split('/');
+      job.env.CI_BRANCH = parts[parts.length - 1];
+    }
+
     job.run();
 };