feat: add http2 option (#6957)

docs/usage/configuration-options.md

@@ -572,6 +572,10 @@ Renovate does not do a "longest match" algorithm to pick between multiple matchi
 
 If you have any uncertainty about exactly which hosts a service uses, then it can be more reliable to use `domainName` instead of `hostName` or `baseUrl`. e.g. configure `"hostName": "docker.io"` to cover both `index.docker.io` and `auth.docker.io` and any other host that's in use.
 
+### enableHttp2
+
+Enable got [http2](https://github.com/sindresorhus/got/blob/v11.5.2/readme.md#http2) support.
+
 ### hostName
 
 ### hostType

lib/config/definitions.ts

@@ -1666,6 +1666,16 @@ const options: RenovateOptions[] = [
     cli: false,
     env: false,
   },
+  {
+    name: 'enableHttp2',
+    description: 'Enable got http2 support.',
+    type: 'boolean',
+    stage: 'repository',
+    parent: 'hostRules',
+    default: false,
+    cli: false,
+    env: false,
+  },
   {
     name: 'prBodyDefinitions',
     description: 'Table column definitions for use in PR tables',

lib/types/host-rules.ts

@@ -16,4 +16,5 @@ export interface HostRule {
   abortOnError?: boolean;
   abortIgnoreStatusCodes?: number[];
   enabled?: boolean;
+  enableHttp2?: boolean;
 }

lib/util/http/host-rules.spec.ts

@@ -4,11 +4,14 @@ import {
   PLATFORM_TYPE_GITEA,
   PLATFORM_TYPE_GITHUB,
 } from '../../constants/platforms';
+import { bootstrap } from '../../proxy';
 import * as hostRules from '../host-rules';
 import { applyHostRules } from './host-rules';
 
 const url = 'https://github.com';
 
+jest.mock('global-agent');
+
 describe(getName(__filename), () => {
   const options = {
     hostType: PLATFORM_TYPE_GITHUB,
@@ -17,6 +20,8 @@ describe(getName(__filename), () => {
     // reset module
     jest.resetAllMocks();
 
+    delete process.env.HTTP_PROXY;
+
     // clean up hostRules
     hostRules.clear();
     hostRules.add({
@@ -32,6 +37,10 @@ describe(getName(__filename), () => {
     httpMock.setup();
   });
 
+  afterEach(() => {
+    delete process.env.HTTP_PROXY;
+  });
+
   it('adds token', () => {
     expect(applyHostRules(url, { ...options })).toMatchInlineSnapshot(`
       Object {
@@ -61,4 +70,29 @@ describe(getName(__filename), () => {
       }
     `);
   });
+
+  it('uses http2', () => {
+    hostRules.add({ enableHttp2: true });
+    expect(applyHostRules(url, { ...options, token: 'xxx' }))
+      .toMatchInlineSnapshot(`
+      Object {
+        "hostType": "github",
+        "http2": true,
+        "token": "xxx",
+      }
+    `);
+  });
+
+  it('disables http2', () => {
+    process.env.HTTP_PROXY = 'http://proxy';
+    bootstrap();
+    hostRules.add({ enableHttp2: true });
+    expect(applyHostRules(url, { ...options, token: 'xxx' }))
+      .toMatchInlineSnapshot(`
+      Object {
+        "hostType": "github",
+        "token": "xxx",
+      }
+    `);
+  });
 });

lib/util/http/host-rules.ts

@@ -1,4 +1,5 @@
 import { logger } from '../../logger';
+import { hasProxy } from '../../proxy';
 import * as hostRules from '../host-rules';
 import { GotOptions } from './types';
 
@@ -30,5 +31,9 @@ export function applyHostRules(url: string, inOptions: GotOptions): GotOptions {
       options[param] = foundRules[param];
     }
   });
+
+  if (!hasProxy() && foundRules.enableHttp2 === true) {
+    options.http2 = true;
+  }
   return options;
 }