fix: migrate automergeMajor automergeMinor automergePatch (#922)

This is a misconfiguration by a user but no harm in adding it to migrations.

lib/config/migration.js

@@ -33,6 +33,21 @@ function migrateConfig(config, parentConfig) {
     if (removedOptions.includes(key)) {
       isMigrated = true;
       delete migratedConfig[key];
+    } else if (key === 'automergeMinor') {
+      isMigrated = true;
+      migratedConfig.minor = migratedConfig.minor || {};
+      migratedConfig.minor.automerge = val;
+      delete migratedConfig[key];
+    } else if (key === 'automergeMajor') {
+      isMigrated = true;
+      migratedConfig.major = migratedConfig.major || {};
+      migratedConfig.major.automerge = val;
+      delete migratedConfig[key];
+    } else if (key === 'automergePatch') {
+      isMigrated = true;
+      migratedConfig.patch = migratedConfig.patch || {};
+      migratedConfig.patch.automerge = val;
+      delete migratedConfig[key];
     } else if (key === 'ignoreNodeModules') {
       isMigrated = true;
       delete migratedConfig.ignoreNodeModules;

test/config/__snapshots__/migration.spec.js.snap

@@ -26,6 +26,12 @@ Object {
   "lockFileConfig": Object {
     "automerge": true,
   },
+  "major": Object {
+    "automerge": false,
+  },
+  "minor": Object {
+    "automerge": true,
+  },
   "onboarding": false,
   "optionalDependencies": Object {
     "major": Object {
@@ -58,6 +64,9 @@ Object {
       ],
     },
   ],
+  "patch": Object {
+    "automerge": true,
+  },
   "prTitle": "some pr title",
   "schedule": "on the first day of the month",
   "semanticPrefix": "fix(deps):",

test/config/migration.spec.js

@@ -9,6 +9,9 @@ describe('config/migration', () => {
         maintainYarnLock: true,
         onboarding: 'false',
         automerge: 'none',
+        automergeMajor: false,
+        automergeMinor: true,
+        automergePatch: true,
         ignoreNodeModules: true,
         autodiscover: 'true',
         schedule: 'on the last day of the month',