add flag to toggle diff page

x-pack/legacy/plugins/code/index.ts

@@ -41,6 +41,7 @@ export const code = (kibana: any) =>
         return {
           codeUiEnabled: config.get('xpack.code.ui.enabled'),
           codeIntegrationsEnabled: config.get('xpack.code.integrations.enabled'),
+          codeDiffPageEnabled: config.get('xpack.code.diffPage.enabled'),
         };
       },
       hacks: ['plugins/code/hacks/toggle_app_link_in_nav'],
@@ -61,6 +62,9 @@ export const code = (kibana: any) =>
         integrations: Joi.object({
           enabled: Joi.boolean().default(false),
         }).default(),
+        diffPage: Joi.object({
+          enabled: Joi.boolean().default(false),
+        }).default(),
         enabled: Joi.boolean().default(true),
       })
         .default()

x-pack/legacy/plugins/code/public/components/commits/commit.tsx

@@ -16,11 +16,13 @@ import {
   EuiCopy,
   EuiTitle,
 } from '@elastic/eui';
+import chrome from 'ui/chrome';
 import { i18n } from '@kbn/i18n';
 import { FormattedMessage } from '@kbn/i18n/react';
 import { CommitInfo } from '../../../model/commit';
 import { RepositoryUtils } from '../../../common/repository_utils';
 import { parseCommitMessage } from '../../../common/commit_utils';
+import { PathTypes } from '../../common/types';
 
 const COMMIT_ID_LENGTH = 8;
 
@@ -53,8 +55,17 @@ const revisionLinkLabel = i18n.translate('xpack.code.commits.revisionLinkAriaLab
   defaultMessage: 'View the project at this commit',
 });
 
+const getRevisionPath = (repoUri: string, commitId: string) => {
+  const diffPageEnabled = chrome.getInjected('codeDiffPageEnabled');
+  if (diffPageEnabled) {
+    return `#/${repoUri}/commit/${commitId}`;
+  } else {
+    return `#/${repoUri}/${PathTypes.tree}/${commitId}`;
+  }
+};
+
 const CommitActions = ({ commitId, repoUri }: ActionProps) => {
-  const revisionPath = `#/${repoUri}/commit/${commitId}`;
+  const revisionPath = getRevisionPath(repoUri, commitId);
 
   return (
     <div className="commit__actions">

x-pack/plugins/code/server/config.ts

@@ -32,6 +32,12 @@ const createCodeConfigSchema = () => {
       enabled: schema.boolean({ defaultValue: true }),
     }),
     enabled: schema.boolean({ defaultValue: true }),
+    diffPage: schema.object({
+      enabled: schema.boolean({ defaultValue: false }),
+    }),
+    integrations: schema.object({
+      enabled: schema.boolean({ defaultValue: false }),
+    }),
     queueIndex: schema.string({ defaultValue: '.code_internal-worker-queue' }),
     // 1 hour by default.
     queueTimeoutMs: schema.number({