feat: add --lerna-package flag used to extract tags in case of lerna …

…repo (#503)

Co-authored-by: Benjamin E. Coe <bencoe@google.com>

command.js

@@ -99,6 +99,10 @@ const yargs = require('yargs')
     default: defaults.preset,
     describe: 'Commit message guideline preset'
   })
+  .option('lerna-package', {
+    type: 'string',
+    describe: 'Name of the package from which the tags will be extracted'
+  })
   .check((argv) => {
     if (typeof argv.scripts !== 'object' || Array.isArray(argv.scripts)) {
       throw Error('scripts must be an object')

lib/lifecycles/bump.js

@@ -120,7 +120,8 @@ function bumpVersion (releaseAs, currentVersion, args) {
         debug: args.verbose && console.info.bind(console, 'conventional-recommended-bump'),
         preset: presetOptions,
         path: args.path,
-        tagPrefix: args.tagPrefix
+        tagPrefix: args.tagPrefix,
+        lernaPackage: args.lernaPackage
       }, function (err, release) {
         if (err) return reject(err)
         else return resolve(release)