node-gyp: detect RC build with x.y.z-rc.n format

PR-URL: https://github.com/nodejs/io.js/pull/2171
Reviewed-By: Alexis Campailla <alexis@janeasystems.com>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>

deps/npm/node_modules/node-gyp/lib/install.js

@@ -460,7 +460,7 @@ function install (gyp, argv, callback) {
 // pick out 'nightly', 'next-nightly' or 'rc' from the version string if it's there
 // adjust URL accordingly
 function getDefaultIojsUrl(version) {
-  var versionMatch = version.match(/^v\d+\.\d+\.\d+-(?:(?:(nightly|next-nightly)\d{8}[0-9a-f]{10})|(?:(rc)\d+))$/)
+  var versionMatch = version.match(/^v\d+\.\d+\.\d+-(?:(?:(nightly|next-nightly)\.?\d{8}[0-9a-f]{10})|(?:(rc)\.\d+))$/)
   var distType = versionMatch ? versionMatch[1] || versionMatch[2] : 'release'
   var defaultUrl = `https://iojs.org/download/${distType}`
   return defaultUrl
@@ -470,11 +470,15 @@ function getDefaultIojsUrl(version) {
 if (require.main === module) {
   var assert = require('assert')
   console.log('test v2.3.4 -> https://iojs.org/download/release')
-  assert(getDefaultIojsUrl('v2.3.4', 'https://iojs.org/download/release'))
+  assert.equal(getDefaultIojsUrl('v2.3.4'), 'https://iojs.org/download/release')
   console.log('test v2.3.4-nightly12345678aaaaaaaaaa -> https://iojs.org/download/nightly')
-  assert(getDefaultIojsUrl('v2.3.4-nightly12345678aaaaaaaaaa', 'https://iojs.org/download/nightly'))
+  assert.equal(getDefaultIojsUrl('v2.3.4-nightly12345678aaaaaaaaaa'), 'https://iojs.org/download/nightly')
+  console.log('test v2.3.4-nightly.12345678aaaaaaaaaa -> https://iojs.org/download/nightly')
+  assert.equal(getDefaultIojsUrl('v2.3.4-nightly.12345678aaaaaaaaaa'), 'https://iojs.org/download/nightly')
   console.log('test v2.3.4-next-nightly12345678aaaaaaaaaa -> https://iojs.org/download/release/next-nightly')
-  assert(getDefaultIojsUrl('v2.3.4-next-nightly12345678aaaaaaaaaa', 'https://iojs.org/download/next-nightly'))
-  console.log('test v2.3.4-rc100 -> https://iojs.org/download/rc')
-  assert(getDefaultIojsUrl('v2.3.4-rc100', 'https://iojs.org/download/rc'))
+  assert.equal(getDefaultIojsUrl('v2.3.4-next-nightly12345678aaaaaaaaaa'), 'https://iojs.org/download/next-nightly')
+  console.log('test v2.3.4-next-nightly.12345678aaaaaaaaaa -> https://iojs.org/download/release/next-nightly')
+  assert.equal(getDefaultIojsUrl('v2.3.4-next-nightly.12345678aaaaaaaaaa'), 'https://iojs.org/download/next-nightly')
+  console.log('test v2.3.4-rc.100 -> https://iojs.org/download/rc')
+  assert.equal(getDefaultIojsUrl('v2.3.4-rc.100'), 'https://iojs.org/download/rc')
 }