fix: add better debugging messages for decisions around conventional …

…commits

src/parseConventionalCommitMessage.ts

@@ -1,9 +1,12 @@
+import { debug } from '@actions/core';
+
 const conventionalCommit = /^(\w+)(?:\((\w+)\))?(!?):\s*(.*)(?:\n\n(.*))?$/u;
 
 /**
  * Parses a commit message into a release type
  */
 export const parseConventionalCommitMessage = (message: string): 'major' | 'minor' | 'patch' | 'none' => {
+	debug(`Treating commit message as a conventional commit: ${message}`);
 	const match = message.match(conventionalCommit) as
 		| null
 		| [string, string, string | undefined, '!' | undefined, string, string | undefined];
@@ -14,14 +17,19 @@ export const parseConventionalCommitMessage = (message: string): 'major' | 'mino
 	const [, type, _scope, major, _msg, body] = match;
 
 	if ((body ?? '').match(/^BREAKING[- ]CHANGE:/mu) != null) {
+		debug('Treating this commit as a major update.');
 		return 'major';
 	} else if (major === '!') {
+		debug('Treating this commit as a major update.');
 		return 'major';
 	} else if (type === 'fix') {
+		debug('Treating this commit as a patch update.');
 		return 'patch';
 	} else if (type === 'feat') {
+		debug('Treating this commit as a minor update.');
 		return 'minor';
 	}
 
+	debug('No releaseable change in the commit message, ignoring this commit.');
 	return 'none';
 };