From abd94a7f5a50f43c797a11b53549ae48fff667c3 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Mon, 10 Oct 2016 03:43:44 +0200
Subject: add node_modules to address #4364

---
 node_modules/validate-npm-package-license/index.js | 84 ++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 node_modules/validate-npm-package-license/index.js

(limited to 'node_modules/validate-npm-package-license/index.js')

diff --git a/node_modules/validate-npm-package-license/index.js b/node_modules/validate-npm-package-license/index.js
new file mode 100644
index 000000000..2ad98d9d8
--- /dev/null
+++ b/node_modules/validate-npm-package-license/index.js
@@ -0,0 +1,84 @@
+var parse = require('spdx-expression-parse');
+var correct = require('spdx-correct');
+
+var genericWarning = (
+  'license should be ' +
+  'a valid SPDX license expression (without "LicenseRef"), ' +
+  '"UNLICENSED", or ' +
+  '"SEE LICENSE IN <filename>"'
+);
+
+var fileReferenceRE = /^SEE LICEN[CS]E IN (.+)$/;
+
+function startsWith(prefix, string) {
+  return string.slice(0, prefix.length) === prefix;
+}
+
+function usesLicenseRef(ast) {
+  if (ast.hasOwnProperty('license')) {
+    var license = ast.license;
+    return (
+      startsWith('LicenseRef', license) ||
+      startsWith('DocumentRef', license)
+    );
+  } else {
+    return (
+      usesLicenseRef(ast.left) ||
+      usesLicenseRef(ast.right)
+    );
+  }
+}
+
+module.exports = function(argument) {
+  var ast;
+
+  try {
+    ast = parse(argument);
+  } catch (e) {
+    var match
+    if (
+      argument === 'UNLICENSED' ||
+      argument === 'UNLICENCED'
+    ) {
+      return {
+        validForOldPackages: true,
+        validForNewPackages: true,
+        unlicensed: true
+      };
+    } else if (match = fileReferenceRE.exec(argument)) {
+      return {
+        validForOldPackages: true,
+        validForNewPackages: true,
+        inFile: match[1]
+      };
+    } else {
+      var result = {
+        validForOldPackages: false,
+        validForNewPackages: false,
+        warnings: [genericWarning]
+      };
+      var corrected = correct(argument);
+      if (corrected) {
+        result.warnings.push(
+          'license is similar to the valid expression "' + corrected + '"'
+        );
+      }
+      return result;
+    }
+  }
+
+  if (usesLicenseRef(ast)) {
+    return {
+      validForNewPackages: false,
+      validForOldPackages: false,
+      spdx: true,
+      warnings: [genericWarning]
+    };
+  } else {
+    return {
+      validForNewPackages: true,
+      validForOldPackages: true,
+      spdx: true
+    };
+  }
+};
-- 
cgit v1.2.3