Fix currentTag not returning correctly found tag (#8)

Author: silvanocerza

__tests__/git.test.ts

@@ -88,14 +88,14 @@ describe('Git commands', () => {
 
     const settings = {} as Settings
     settings.gitPath = await io.which('git', true)
-    settings.tagRegex = RegExp('[0-9]+.[0-9]+.[0-9]+.*', 'i')
+    settings.tagRegex = RegExp('^[0-9]+.[0-9]+.[0-9]+.*', 'i')
     const g = new Git(settings)
 
     await createAndCommitFile('first', 'First commit', cwd)
     await createTag('0.0.1', cwd)
 
     const tag = await g.currentTag()
-    expect(tag).toEqual('')
+    expect(tag).toEqual('0.0.1')
   })
 
   it('Verifies previous tag is returned', async () => {

src/git.ts

@@ -18,13 +18,16 @@ export class Git {
 
     // In case there are multiple tags get the first valid version tag
     if (this.settings.tagRegex) {
+      let foundTag = ''
       res.stdout.forEach(tag => {
         if (this.settings.tagRegex.test(tag)) {
-          return tag
+          foundTag = tag
+          return
         }
       })
-      // No tag matched
-      return ''
+
+      // Return either matched tag or none
+      return foundTag
     }
     // Get the first tag we found if there's no tag regex
     return res.stdout[0]