win: make VS path match case-insensitive

Fixes: #1805
PR-URL: #1806
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>

Author: joaocgreis

lib/find-visualstudio.js

@@ -405,11 +405,13 @@ VisualStudioFinder.prototype = {
       this.addLog('- msvs_version does not match this version')
       return false
     }
-    if (this.configPath && this.configPath !== vsPath) {
+    if (this.configPath &&
+        path.relative(this.configPath, vsPath) !== '') {
       this.addLog('- msvs_version does not point to this installation')
       return false
     }
-    if (this.envVcInstallDir && this.envVcInstallDir !== vsPath) {
+    if (this.envVcInstallDir &&
+        path.relative(this.envVcInstallDir, vsPath) !== '') {
       this.addLog('- does not match this Visual Studio Command Prompt')
       return false
     }

test/test-find-visualstudio.js

@@ -525,7 +525,7 @@ test('look for VS2019 by version number', function (t) {
   finder.findVisualStudio()
 })
 
-test('look for VS2017 by installation path', function (t) {
+test('look for VS2019 by installation path', function (t) {
   t.plan(2)
 
   const finder = new TestVisualStudioFinder(semverV1,
@@ -540,6 +540,21 @@ test('look for VS2017 by installation path', function (t) {
   finder.findVisualStudio()
 })
 
+test('msvs_version match should be case insensitive', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1,
+    'c:\\program files (x86)\\microsoft visual studio\\2019\\BUILDTOOLS',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path,
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
 test('latest version should be found by default', function (t) {
   t.plan(2)
 
@@ -568,6 +583,22 @@ test('run on a usable VS Command Prompt', function (t) {
   finder.findVisualStudio()
 })
 
+test('VCINSTALLDIR match should be case insensitive', function (t) {
+  t.plan(2)
+
+  process.env.VCINSTALLDIR =
+    'c:\\program files (x86)\\microsoft visual studio\\2019\\BUILDTOOLS\\VC'
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.path,
+      'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools')
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
 test('run on a unusable VS Command Prompt', function (t) {
   t.plan(2)