🐛 Fix analyze commit on commit with RegExp characters

Refs: #76

Author: AthAshino

lib/helper/parse-commits.js

@@ -37,7 +37,11 @@ function matchEmoji (emoji) {
   return (spec) => spec.emoji === emoji || spec.emoji === emoji + IMAGE_STYLE_SELECTOR
 }
 
-function parseGitmoji ({ subject = '', message = '', body = '' } = {}, issues = []) {
+function parseGitmoji ({
+  subject = '',
+  message = '',
+  body = ''
+} = {}, issues = []) {
   subject = emojify(subject.trim())
   if (issues.length > 0) {
     subject = issues.reduce((acc, curr) => acc.replace(curr.text, ''), subject).trim()
@@ -48,9 +52,24 @@ function parseGitmoji ({ subject = '', message = '', body = '' } = {}, issues =
 
   const gitmoji = matched[0]
   const semver = gitmojis.find(matchEmoji(gitmoji))?.semver || 'other'
-  subject = subject.replace(new RegExp('^' + gitmoji), '')
-
-  return { subject, message: subject + '\n\n' + body, gitmoji, semver }
+  try {
+    subject = subject.replace(new RegExp('^' + gitmoji), '')
+  } catch (SyntaxError) {
+    /**
+     * The emojiRegex is not bugproof, it may return a regex character
+     * (like * or .). The best option is to ignore this error
+     * If there is an error, there is no emoji
+     *
+     * @see https://github.com/momocow/semantic-release-gitmoji/issues/76
+     */
+    return null
+  }
+  return {
+    subject,
+    message: subject + '\n\n' + body,
+    gitmoji,
+    semver
+  }
 }
 
 module.exports = function parseCommits (commits = [], mixins = {}, options = {}) {

test/integration/analyze-commits.test.js

@@ -71,6 +71,14 @@ const CASES = [
     },
     context: getContext('common', { commits: { boring: 2, patch: 4, minor: 2, major: 1 } }),
     expectedRelease: 'major'
+  },
+  {
+    name: 'default config + common context w/ star in commit subject',
+    pluginConfig: {
+      semver: true
+    },
+    context: getContext('common', { commits: { star: 1 } }),
+    expectedRelease: undefined
   }
 ]
 

test/integration/fixtures/contexts/commit-star.json

@@ -0,0 +1,8 @@
+{
+  "commit": {
+    "short": "commit_short"
+  },
+  "message": "*Commit starting with star",
+  "subject": "*Commit starting with star",
+  "body": ""
+}