Allow ignoring web-flow commits

lib/create-status.js

@@ -3,6 +3,10 @@ const statuses = {
     state: 'success',
     description: 'All commits have a verified GPG signature'
   },
+  'web-flow-ignored': {
+    state: 'success',
+    description: 'All non-web-flow commits have a verified GPG signature'
+  },
   failure: {
     state: 'failure',
     description: 'All commits must have a verified GPG signature',
@@ -20,16 +24,10 @@ module.exports = async (github, context, gpgStatus) => {
     context: 'GPG'
   };
 
-  switch (gpgStatus) {
-    case 'success':
-      Object.assign(statusParams, statuses.success);
-      break;
-    case 'failure':
-      Object.assign(statusParams, statuses.failure);
-      break;
-    default:
-      Object.assign(statusParams, statuses.error);
-      break;
+  if (gpgStatus in statuses) {
+    Object.assign(statusParams, statuses[gpgStatus]);
+  } else {
+    Object.assign(statusParams, statuses.error);
   }
 
   return github.repos.createStatus(context.repo(statusParams));

lib/get-config.js

@@ -0,0 +1,8 @@
+const defaultConfig = {
+  ignoreWebFlow: false
+};
+
+module.exports = async context => {
+  const repoConfig = await context.config('config.yml', { gpg: defaultConfig });
+  return repoConfig.gpg;
+};

lib/handle-event.js

@@ -1,4 +1,5 @@
 const getCommits = require('./get-commits');
+const getConfig = require('./get-config');
 const validateCommit = require('./validate-commit');
 const reduceStatuses = require('./reduce-statuses');
 const createStatus = require('./create-status');
@@ -8,8 +9,8 @@ module.exports = async (robot, context) => {
 
   let status;
   try {
-    const commits = await getCommits(github, context);
-    const statusChain = commits.map(validateCommit);
+    const [commits, config] = await Promise.all(getCommits(github, context), getConfig(context));
+    const statusChain = commits.map(commit => validateCommit(config, commit));
     status = reduceStatuses(statusChain);
   } catch (err) {
     status = 'error';

lib/reduce-statuses.js

@@ -8,6 +8,10 @@ module.exports = function (statusChain) {
       return 'failure';
     }
 
+    if (overallStatus === 'web-flow-ignored') {
+      return 'web-flow-ignored';
+    }
+
     return currentStatus;
   });
 };

lib/validate-commit.js

@@ -1,4 +1,8 @@
-module.exports = function (commit) {
+module.exports = function (config, commit) {
+  if (config.ignoreWebFlow === true && commit.login === 'web-flow') {
+    return 'web-flow-ignored';
+  }
+
   if (commit.verification === undefined) {
     return 'error';
   }