Chore: Update licenses.md (#13582)

packages/tools/licenses/licenseStatementBuilder.ts

@@ -89,20 +89,35 @@ const getNotice = async (pkg: PackageInfo) => {
 	return noticeLines.join('\n\n');
 };
 
+const trimBeforeLicenseHeader = (text: string) => {
+	const header = text.match(/#+ License[\n]/i);
+	if (header) {
+		return text.substring(header.index);
+	} else {
+		return text;
+	}
+};
+
 const readLicense = async (pkg: PackageInfo) => {
 	let result = '';
 	if (pkg.licenseText && !pkg.licenses.includes('UNKNOWN')) {
 		result = pkg.licenseText;
 	}
 
+	const resolvedLicenseToReadme = pkg.licenseFile && pkg.licenseFile.match(/\/README(\.\w+)?$/);
+
 	// By default, license-checker-rseidelsohn uses the README when the license can't be
 	// found. This is often wrong, and we can do better:
-	if (pkg.path && (!pkg.licenseFile || pkg.licenseFile.match(/\/README(\.\w+)?$/))) {
+	if (pkg.path && (!pkg.licenseFile || resolvedLicenseToReadme)) {
 		result = await readOrFetchRepositoryFile(pkg, ['LICENSE', 'LICENSE.md', 'LICENSE.txt', 'MIT-LICENSE.txt']);
 	}
 
 	if (!result && pkg.licenseFile) {
 		result = await readFile(pkg.licenseFile, 'utf8');
+
+		if (resolvedLicenseToReadme) {
+			result = trimBeforeLicenseHeader(result);
+		}
 	}
 
 	return result;

packages/tools/licenses/utils/equalIgnoringSpacing.ts

@@ -1,7 +1,8 @@
 // Some sources present licenses with different spacing.
+
 // This function can be used to compare ignoring spaces.
 const wordsMatch = (text1: string, text2: string) => {
-	const excludeRegex = /[ \t\n"]+/g;
+	const excludeRegex = /[ \t\n"']+/g;
 	text1 = text1.replace(excludeRegex, ' ').trim().toLowerCase();
 	text2 = text2.replace(excludeRegex, ' ').trim().toLowerCase();
 

packages/tools/licenses/utils/matchMit.ts

@@ -5,19 +5,19 @@ const matchMit = (licenseText: string) => {
 	licenseText = licenseText.trim();
 
 	// Match headers similar to "MIT License" and "(The MIT License)"
-	const headerRegex = /^.?(?:The )?(?:MIT License)?(?: .MIT.)?.?[\r\n \t]+/;
+	const headerRegex = /^.?(?:This software is released under )?(?:The )?(?:MIT License)?(?: .MIT.)?.?[\r\n \t]+/i;
 	licenseText = licenseText.replace(headerRegex, '');
 
 	const baseMitLicense = mit('[[copyright here]]').trim().replace(headerRegex, '');
 
-	const copyrightRegex = /^(Copyright .*)[\n]/i;
+	const copyrightRegex = /^(Copyright .*[\n]){1,}[\n]?(All rights reserved.[\n])?/i;
 	const baseLicenseWithoutCopyright = baseMitLicense.replace(copyrightRegex, '');
 	const testLicenseTextWithoutCopyright = licenseText.replace(copyrightRegex, '');
 	const copyrightMatch = copyrightRegex.exec(licenseText);
 
 	if (copyrightMatch && equalIgnoringSpacing(baseLicenseWithoutCopyright, testLicenseTextWithoutCopyright)) {
 		return {
-			copyright: copyrightMatch[1],
+			copyright: copyrightMatch.slice(1).join('\n').trim(),
 		};
 	} else {
 		return null;