fix(bitbucket): release notes heading link

lib/workers/repository/update/pr/changelog/release-notes.spec.ts

@@ -35,6 +35,46 @@ const yargsChangelogMd = Fixtures.get('yargs.md');
 const adapterutilsChangelogMd = Fixtures.get('adapter-utils.md');
 const gitterWebappChangelogMd = Fixtures.get('gitter-webapp.md');
 
+const bitbucketTreeResponse = {
+  values: [
+    {
+      type: 'commit_directory',
+      path: 'lib',
+      commit: {
+        hash: '1234',
+      },
+    },
+    {
+      type: 'commit_file',
+      path: 'CHANGELOG',
+      commit: {
+        hash: 'cdef',
+      },
+    },
+    {
+      type: 'commit_file',
+      path: 'CHANGELOG.json',
+      commit: {
+        hash: 'defg',
+      },
+    },
+    {
+      type: 'commit_file',
+      path: 'CHANGELOG.md',
+      commit: {
+        hash: 'abcd',
+      },
+    },
+    {
+      type: 'commit_file',
+      path: 'RELEASE_NOTES.md',
+      commit: {
+        hash: 'asdf',
+      },
+    },
+  ],
+};
+
 const githubTreeResponse = {
   tree: [
     { path: 'lib', type: 'tree' },
@@ -53,6 +93,12 @@ const gitlabTreeResponse = [
   { path: 'README.md', name: 'README.md', type: 'blob' },
 ];
 
+const bitbucketProject = partial<ChangeLogProject>({
+  type: 'bitbucket',
+  apiBaseUrl: 'https://api.bitbucket.org/',
+  baseUrl: 'https://bitbucket.org/',
+});
+
 const githubProject = partial<ChangeLogProject>({
   type: 'github',
   apiBaseUrl: 'https://api.github.com/',
@@ -1081,6 +1127,31 @@ describe('workers/repository/update/pr/changelog/release-notes', () => {
       expect(res).toBeNull();
     });
 
+    it('handles bitbucket release notes link', async () => {
+      httpMock
+        .scope('https://api.bitbucket.org')
+        .get('/2.0/repositories/some-org/some-repo/src/HEAD?pagelen=100')
+        .reply(200, bitbucketTreeResponse)
+        .get('/2.0/repositories/some-org/some-repo/src/abcd/CHANGELOG.md')
+        .reply(200, angularJsChangelogMd);
+
+      const res = await getReleaseNotesMd(
+        {
+          ...bitbucketProject,
+          repository: 'some-org/some-repo',
+        },
+        partial<ChangeLogRelease>({
+          version: '1.6.9',
+          gitRef: '1.6.9',
+        }),
+      );
+      expect(res).toMatchObject({
+        notesSourceUrl:
+          'https://bitbucket.org/some-org/some-repo/src/HEAD/CHANGELOG.md',
+        url: 'https://bitbucket.org/some-org/some-repo/src/HEAD/CHANGELOG.md#169-fiery-basilisk-2018-02-02',
+      });
+    });
+
     it('parses angular.js', async () => {
       httpMock
         .scope('https://api.github.com')

lib/workers/repository/update/pr/changelog/release-notes.ts

@@ -9,7 +9,7 @@ import { detectPlatform } from '../../../../../util/common';
 import { linkify } from '../../../../../util/markdown';
 import { newlineRegex, regEx } from '../../../../../util/regex';
 import { coerceString } from '../../../../../util/string';
-import { isHttpUrl } from '../../../../../util/url';
+import { isHttpUrl, joinUrlParts } from '../../../../../util/url';
 import type { BranchUpgradeConfig } from '../../../../types';
 import * as bitbucket from './bitbucket';
 import * as gitea from './gitea';
@@ -18,6 +18,7 @@ import * as gitlab from './gitlab';
 import type {
   ChangeLogFile,
   ChangeLogNotes,
+  ChangeLogPlatform,
   ChangeLogProject,
   ChangeLogRelease,
   ChangeLogResult,
@@ -359,7 +360,13 @@ export async function getReleaseNotesMd(
             if (word.includes(version) && !isHttpUrl(word)) {
               logger.trace({ body }, 'Found release notes for v' + version);
               // TODO: fix url
-              const notesSourceUrl = `${baseUrl}${repository}/blob/HEAD/${changelogFile}`;
+              const notesSourceUrl = joinUrlParts(
+                baseUrl,
+                repository,
+                getSourceRootPath(project.type),
+                'HEAD',
+                changelogFile,
+              );
               const mdHeadingLink = title
                 .filter((word) => !isHttpUrl(word))
                 .join('-')
@@ -479,3 +486,12 @@ export async function addReleaseNotes(
 export function shouldSkipChangelogMd(repository: string): boolean {
   return repositoriesToSkipMdFetching.includes(repository);
 }
+
+function getSourceRootPath(type: ChangeLogPlatform): string {
+  switch (type) {
+    case 'bitbucket':
+      return 'src';
+    default:
+      return 'blob';
+  }
+}