feat: datasource manual source URLs

Adds central location to define manual source URLs for packages.

lib/datasource/index.js

@@ -20,6 +20,8 @@ const datasources = {
   terraform,
 };
 
+// Use this object to define changelog URLs for packages
+// Only necessary when the changelog data cannot be found in the package's source repository
 const manualChangelogUrls = {
   npm: {
     firebase: 'https://firebase.google.com/support/release-notes/js',
@@ -46,6 +48,23 @@ const manualChangelogUrls = {
   },
 };
 
+// Use this object to define manual source URLs for packages
+// Only necessary if the datasource is unable to locate the source URL itself
+const manualSourceUrls = {
+  docker: {
+    node: 'https://github.com/nodejs/node',
+  },
+  kubernetes: {
+    node: 'https://github.com/nodejs/node',
+  },
+  npm: {
+    node: 'https://github.com/nodejs/node',
+  },
+  nvm: {
+    node: 'https://github.com/nodejs/node',
+  },
+};
+
 async function getPkgReleases(purlStr, config) {
   const purl = parse(purlStr);
   if (!purl) {
@@ -64,6 +83,12 @@ async function getPkgReleases(purlStr, config) {
       res.changelogUrl =
         manualChangelogUrls[purl.type][purl.fullname.toLowerCase()];
     }
+    if (
+      manualSourceUrls[purl.type] &&
+      manualSourceUrls[purl.type][purl.fullname.toLowerCase()]
+    ) {
+      res.sourceUrl = manualSourceUrls[purl.type][purl.fullname.toLowerCase()];
+    }
     if (
       !res.sourceUrl &&
       res.changelogUrl &&

test/datasource/__snapshots__/index.spec.js.snap

@@ -6,3 +6,9 @@ Object {
   "sourceUrl": "https://github.com/react-native-community/react-native-releases",
 }
 `;
+
+exports[`datasource/index adds sourceUrl 1`] = `
+Object {
+  "sourceUrl": "https://github.com/nodejs/node",
+}
+`;

test/datasource/index.spec.js

@@ -20,4 +20,10 @@ describe('datasource/index', () => {
     expect(res.changelogUrl).toBeDefined();
     expect(res.sourceUrl).toBeDefined();
   });
+  it('adds sourceUrl', async () => {
+    npmDatasource.getPkgReleases.mockReturnValue({});
+    const res = await datasource.getPkgReleases('pkg:npm/node');
+    expect(res).toMatchSnapshot();
+    expect(res.sourceUrl).toBeDefined();
+  });
 });

test/workers/repository/process/lookup/__snapshots__/index.spec.js.snap

@@ -88,7 +88,7 @@ Object {
       "version": "8.1.0",
     },
   ],
-  "sourceUrl": null,
+  "sourceUrl": "https://github.com/nodejs/node",
   "updates": Array [
     Object {
       "blockedByPin": true,
@@ -134,7 +134,7 @@ Object {
   "changelogUrl": undefined,
   "homepage": undefined,
   "releases": Array [],
-  "sourceUrl": null,
+  "sourceUrl": "https://github.com/nodejs/node",
   "updates": Array [
     Object {
       "newDigest": "sha256:abcdef1234567890",
@@ -159,7 +159,7 @@ Object {
       "version": "8.1.0",
     },
   ],
-  "sourceUrl": null,
+  "sourceUrl": "https://github.com/nodejs/node",
   "updates": Array [
     Object {
       "canBeUnpublished": undefined,
@@ -859,7 +859,7 @@ Object {
       "version": "9",
     },
   ],
-  "sourceUrl": null,
+  "sourceUrl": "https://github.com/nodejs/node",
   "updates": Array [
     Object {
       "canBeUnpublished": undefined,
@@ -893,7 +893,7 @@ Object {
       "version": "9.0",
     },
   ],
-  "sourceUrl": null,
+  "sourceUrl": "https://github.com/nodejs/node",
   "updates": Array [
     Object {
       "canBeUnpublished": undefined,
@@ -942,7 +942,7 @@ Object {
       "version": "8.2.5",
     },
   ],
-  "sourceUrl": null,
+  "sourceUrl": "https://github.com/nodejs/node",
   "updates": Array [
     Object {
       "canBeUnpublished": undefined,