Installing dependencies.

node_modules/semantic-release-conventional-commits/index.js

@@ -0,0 +1,57 @@
+'use strict';
+
+const parser = require('conventional-commits-parser').sync;
+
+/**
+ * Determine the type of release to create based on a list of commits.
+ *
+ * @param {Object} [config={}] semantic-release configuration
+ * @param {Object} options semantic-release options
+ * @param {Array} options.commits array of commits
+ *
+ * @return {Promise}
+ *   The release type to use.
+ */
+async function conventionalCommitsAnalyzer(config, { commits }) {
+  let type = null;
+  const {
+    majorTypes = [],
+    minorTypes = ['feat', 'chore'],
+    patchTypes = ['fix', 'docs', 'refactor', 'style', 'test'],
+    mergePattern = /^Merge pull request #(\d+) from (.*)$/,
+    mergeCorrespondence = ['id', 'source'],
+  } = config;
+
+  const parserOptions = {
+    mergePattern,
+    mergeCorrespondence,
+  };
+  commits.map(commit => parser(commit.message, parserOptions))
+    .filter(commit => commit)
+    .every((commit) => {
+      // TODO - handle squash merge commits with lots of sub-commits.
+
+      if (
+        majorTypes.indexOf(commit.type) !== -1 ||
+        commit.header.match(/^[^!:]+!:/) ||
+        commit.notes.find(note => note.title.toUpperCase().match(/BREAKING CHANGE/))
+      ) {
+        type = 'major';
+        return false;
+      }
+
+      if (minorTypes.indexOf(commit.type) !== -1) {
+        type = 'minor';
+      }
+
+      if (!type && patchTypes.indexOf(commit.type) !== -1) {
+        type = 'patch';
+      }
+
+      return true;
+    });
+
+  return type;
+}
+
+module.exports = conventionalCommitsAnalyzer;