fix(prepare): update changelog based on commit range (#473)

* fix(prepare): ask commit range when tag is missing

* fix: update message

* fix(prepare): update changelog based on commit range

* fix: broken test

* fix: broken test

packages/shipjs/src/flow/prepare.js

@@ -72,7 +72,14 @@ async function prepare({
     : updateVersion;
   await updateVersionFn({ config, nextVersion, releaseType, dir, dryRun });
   installDependencies({ config, dir, dryRun });
-  updateChangelog({ config, firstRelease, releaseCount, dir, dryRun });
+  updateChangelog({
+    config,
+    commitRange,
+    firstRelease,
+    releaseCount,
+    dir,
+    dryRun,
+  });
   await commitChanges({
     nextVersion,
     releaseType,

packages/shipjs/src/step/prepare/__tests__/updateChangelog.spec.js

@@ -2,6 +2,9 @@ import { run } from '../../../util';
 import path from 'path';
 import updateChangelog from '../updateChangelog';
 jest.mock('path');
+jest.mock('temp-write', () => ({
+  sync: () => '/temp/file/path',
+}));
 
 describe('updateChangelog', () => {
   it('works', () => {
@@ -11,14 +14,15 @@ describe('updateChangelog', () => {
         updateChangelog: true,
         conventionalChangelogArgs: '--foo bar',
       },
+      commitRange: 'abcdefg..HEAD',
       firstRelease: false,
       releaseCount: 5,
       dir: '.',
       dryRun: false,
     });
     expect(run.mock.calls[0][0]).toMatchInlineSnapshot(`
       Object {
-        "command": "/temp/path/conventional-changelog --foo bar -r 5",
+        "command": "/temp/path/conventional-changelog --foo bar -r 5 -n /temp/file/path",
         "dir": ".",
         "dryRun": false,
       }

packages/shipjs/src/step/prepare/updateChangelog.js

@@ -1,19 +1,32 @@
+import tempWrite from 'temp-write';
 import runStep from '../runStep';
 import path from 'path';
 import { run } from '../../util';
 
-export default ({ config, firstRelease, releaseCount, dir, dryRun }) =>
+export default ({
+  config,
+  firstRelease,
+  releaseCount,
+  commitRange,
+  dir,
+  dryRun,
+}) =>
   runStep(
     {
       title: 'Updating the changelog.',
       skipIf: () => config.updateChangelog !== true,
     },
     () => {
       const { conventionalChangelogArgs } = config;
+      const [from, to] = commitRange.split('..');
+      const tempConfigPath = tempWrite.sync(
+        `module.exports = { gitRawCommitsOpts: { from: '${from}', to: '${to}' } }`
+      );
       const args = [
         conventionalChangelogArgs,
         releaseCount ? `-r ${releaseCount}` : undefined,
         firstRelease ? '-r 0' : undefined,
+        `-n ${tempConfigPath}`,
       ]
         .filter(Boolean)
         .join(' ');