refactor: sort versions and commits from oldest to newest

List versions and their commits in PR bodies in the order they were made (oldest to newest).

lib/workers/pr/changelog.js

@@ -31,6 +31,16 @@ async function getChangeLogJSON(depName, fromVersion, newVersion) {
       logger.info({ depName, fromVersion, newVersion }, 'No changelog found');
       return null;
     }
+    // Sort from oldest to newest
+    logger.debug({ res });
+    if (Array.isArray(res.versions)) {
+      res.versions.reverse();
+      res.versions.forEach(version => {
+        if (Array.isArray(version.changes)) {
+          version.changes.reverse();
+        }
+      });
+    }
     await cacache.put(cachePath, cacheKey, JSON.stringify(res));
     return res;
   } catch (err) {

test/workers/pr/__snapshots__/changelog.spec.js.snap

@@ -0,0 +1,64 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`workers/pr/changelog getChangeLogJSON sorts JSON 1`] = `
+Object {
+  "project": Object {
+    "github": "chalk/chalk",
+    "repository": "https://github.com/chalk/chalk",
+  },
+  "versions": Array [
+    Object {
+      "changes": Array [
+        Object {
+          "date": "2017-10-22T08:20:23.000Z",
+          "message": "Add Awesome mentioned badge",
+          "sha": "4372d27f7eb887c4d33cdca1f9484f321ceab3dd",
+        },
+        Object {
+          "date": "2017-10-24T02:44:46.000Z",
+          "message": "Add .visible for emitting text only when enabled (fixes #192)",
+          "sha": "dc092b4a5f5ca77dd1e22607cdf2fdd388803064",
+        },
+        Object {
+          "date": "2017-10-24T02:46:10.000Z",
+          "message": "2.2.1",
+          "sha": "6adf5794a38552923ea474c4b60c372ef0582035",
+        },
+        Object {
+          "date": "2017-10-24T03:12:16.000Z",
+          "message": "add failing test for .visible bug",
+          "sha": "ede310303b9893146bd7cc24261a50e3b47c633a",
+        },
+        Object {
+          "date": "2017-10-24T03:12:34.000Z",
+          "message": "fix .visible when called after .enable is set to false",
+          "sha": "e2a4aa427568ff1c5d649739c4d1f8319cf0d072",
+        },
+        Object {
+          "date": "2017-10-24T03:15:51.000Z",
+          "message": "2.2.2",
+          "sha": "e1177ec3628f6d0d37489c1e1accd2c389a376a8",
+        },
+      ],
+      "date": "2017-10-24T03:20:46.238Z",
+      "version": "2.2.2",
+    },
+    Object {
+      "changes": Array [
+        Object {
+          "date": "2017-10-24T04:02:36.000Z",
+          "message": "TypeScript fixes (#217)",
+          "sha": "7be154c074026f77b99e7d854b3a4cdd5e4ae502",
+        },
+        Object {
+          "date": "2017-10-24T04:12:53.000Z",
+          "message": "2.3.0",
+          "sha": "14e0aa97727019b22f0a003fdc631aeec5e2e24c",
+        },
+      ],
+      "date": "2017-10-24T04:12:55.953Z",
+      "version": "2.3.0",
+    },
+  ],
+}
+`;

test/workers/pr/changelog.spec.js

@@ -27,6 +27,73 @@ describe('workers/pr/changelog', () => {
         await changelogHelper.getChangeLogJSON('renovate', '1.0.0', '2.0.0')
       ).toMatchObject({ a: 1 });
     });
+    it('sorts JSON', async () => {
+      changelog.generate = jest.fn(() => ({
+        project: {
+          github: 'chalk/chalk',
+          repository: 'https://github.com/chalk/chalk',
+        },
+        versions: [
+          {
+            version: '2.3.0',
+            date: '2017-10-24T04:12:55.953Z',
+            changes: [
+              {
+                sha: '14e0aa97727019b22f0a003fdc631aeec5e2e24c',
+                date: '2017-10-24T04:12:53.000Z',
+                message: '2.3.0',
+              },
+              {
+                sha: '7be154c074026f77b99e7d854b3a4cdd5e4ae502',
+                date: '2017-10-24T04:02:36.000Z',
+                message: 'TypeScript fixes (#217)',
+              },
+            ],
+          },
+          {
+            version: '2.2.2',
+            date: '2017-10-24T03:20:46.238Z',
+            changes: [
+              {
+                sha: 'e1177ec3628f6d0d37489c1e1accd2c389a376a8',
+                date: '2017-10-24T03:15:51.000Z',
+                message: '2.2.2',
+              },
+              {
+                sha: 'e2a4aa427568ff1c5d649739c4d1f8319cf0d072',
+                date: '2017-10-24T03:12:34.000Z',
+                message:
+                  'fix .visible when called after .enable is set to false',
+              },
+              {
+                sha: 'ede310303b9893146bd7cc24261a50e3b47c633a',
+                date: '2017-10-24T03:12:16.000Z',
+                message: 'add failing test for .visible bug',
+              },
+              {
+                sha: '6adf5794a38552923ea474c4b60c372ef0582035',
+                date: '2017-10-24T02:46:10.000Z',
+                message: '2.2.1',
+              },
+              {
+                sha: 'dc092b4a5f5ca77dd1e22607cdf2fdd388803064',
+                date: '2017-10-24T02:44:46.000Z',
+                message:
+                  'Add .visible for emitting text only when enabled (fixes #192)',
+              },
+              {
+                sha: '4372d27f7eb887c4d33cdca1f9484f321ceab3dd',
+                date: '2017-10-22T08:20:23.000Z',
+                message: 'Add Awesome mentioned badge',
+              },
+            ],
+          },
+        ],
+      }));
+      expect(
+        await changelogHelper.getChangeLogJSON('chalk', '2.2.2', '2.3.0')
+      ).toMatchSnapshot();
+    });
     it('returns cached JSON', async () => {
       changelog.generate = jest.fn(() => ({ a: 2 }));
       expect(