Feat: add option version (closes #19) (#21)

* Feat: add new option version

* Test: add tests for new feat

* Docs: add section for option version

README.md

@@ -20,6 +20,7 @@
 * [Options](#options)
   * [sgr recover --backup](#sgr-recover---backup)
   * [sgr --help](#sgr---help)
+  * [sgr --version](#sgr---version)
 
 ## Why?
 
@@ -124,3 +125,12 @@ With `sgr --help` you can display usage of `semantic-git-release-cli`.
 # usage of cli
 $ sgr --help
 ```
+
+### sgr --version 
+
+With `sgr --version` you can display the current version of `semantic-git-release-cli`.
+
+```sh
+# current version
+$ sgr --version
+```

lib/cmds/recover.js

@@ -1,4 +1,5 @@
 import recoverTasks from '../tasks/recover-tasks';
+import { handler as showVersion } from '../cmds/version';
 
 const command = 'recover';
 
@@ -7,7 +8,13 @@ const aliases = ['r'];
 const desc = 'Recover the complete CHANGELOG.md';
 
 /* istanbul ignore next */
-const handler = (argv) => recoverTasks(argv.b).run();
+const handler = (argv) => {
+  if (argv.v) {
+    return showVersion();
+  }
+
+  return recoverTasks(argv).run();
+};
 
 export {
   command,

lib/cmds/release.js

@@ -5,7 +5,7 @@ const command = '*';
 const desc = 'Release a new version (run tests, write changelog, tag version, push release)';
 
 /* istanbul ignore next */
-const handler = () => release();
+const handler = (argv) => release(argv);
 
 export {
   command,

lib/options/index.js

@@ -1,5 +1,7 @@
 import backup from './backup';
+import version from './version';
 
 export default {
   backup,
+  version,
 };

lib/options/version.js

@@ -0,0 +1,7 @@
+const version = {
+  alias: 'v',
+  describe: 'Show the current version number',
+  type: 'boolean',
+};
+
+export default version;

lib/tasks/recover-tasks/index.js

@@ -2,12 +2,12 @@ import Listr from 'listr';
 
 import generateCompleteChangelog from '../../helpers/generateCompleteChangelog';
 
-const recoverTasks = (backup) => (
+const recoverTasks = (argv) => (
   new Listr([
     {
       title: 'Recover the complete CHANGELOG.md',
       task: () => {
-        generateCompleteChangelog(backup);
+        generateCompleteChangelog(argv.b);
       },
     },
   ])

lib/tasks/release-tasks/index.js

@@ -11,6 +11,8 @@ import generateVersions from '../../helpers/generateVersions';
 import getLatestVersion from '../../helpers/getLatestVersion';
 import questions from '../../questions/release-questions';
 
+import { handler as showVersion } from '../../cmds/version';
+
 import cleanupTasks from './cleanup';
 import releaseTasks from './release';
 import testsTasks from './tests';
@@ -42,7 +44,7 @@ const tasks = (commits, version) => (
   ])
 );
 
-const release = () => {
+const release = (argv) => {
   const cwd = process.cwd();
   const latestTaggedCommits = taggedCommits({ path: cwd });
   const latestTaggedCommit = latestTaggedCommits.length === 0 ? '' : latestTaggedCommits[0].commit;
@@ -63,6 +65,10 @@ const release = () => {
     return console.warn(chalk.red('Error: it seems you do not have a package.json... try npm init'));
   }
 
+  if (argv.v) {
+    return showVersion();
+  }
+
   return inquirer
     .prompt(questionsList)
     .then((answers) => {

test/options/version.js

@@ -0,0 +1,13 @@
+import test from 'ava';
+
+import version from '../../lib/options/version';
+
+test('OPTIONS | VERSION | check alias, describe and type', (t) => {
+  const expected = {
+    alias: 'v',
+    describe: 'Show the current version number',
+    type: 'boolean',
+  };
+
+  t.deepEqual(version, expected);
+});