[skip travis] AppVeyor: try upgrading npm

appveyor.yml

@@ -4,36 +4,36 @@ environment:
   node_pre_gyp_secretAccessKey:
     secure: 1amwJJw9fu0j6dXnc5KsAQbSYf7Cjw/dapT6OZWABa6nc52grkKeLQ+DGaOfQz8i
   matrix:
-    - nodejs_version: 0.10.40
-      platform: x86
-      msvs_toolset: 12
-    - nodejs_version: 0.10.40
-      platform: x64
-      msvs_toolset: 12
-    - nodejs_version: 0.12.7
-      platform: x86
-      msvs_toolset: 12
-    - nodejs_version: 0.12.7
-      platform: x64
-      msvs_toolset: 12
-    - nodejs_version: 4.0.0
-      platform: x64
-      msvs_toolset: 12
-    - nodejs_version: 4.0.0
-      platform: x86
-      msvs_toolset: 12
-    - nodejs_version: 5.0.0
-      platform: x64
-      msvs_toolset: 12
-    - nodejs_version: 5.0.0
-      platform: x86
-      msvs_toolset: 12
-    - nodejs_version: 6.0.0
-      platform: x64
-      msvs_toolset: 12
-    - nodejs_version: 6.0.0
-      platform: x86
-      msvs_toolset: 12
+#    - nodejs_version: 0.10.40
+#      platform: x86
+#      msvs_toolset: 12
+#    - nodejs_version: 0.10.40
+#      platform: x64
+#      msvs_toolset: 12
+#    - nodejs_version: 0.12.7
+#      platform: x86
+#      msvs_toolset: 12
+#    - nodejs_version: 0.12.7
+#      platform: x64
+#      msvs_toolset: 12
+#    - nodejs_version: 4.0.0
+#      platform: x64
+#      msvs_toolset: 12
+#    - nodejs_version: 4.0.0
+#      platform: x86
+#      msvs_toolset: 12
+#    - nodejs_version: 5.0.0
+#      platform: x64
+#      msvs_toolset: 12
+#    - nodejs_version: 5.0.0
+#      platform: x86
+#      msvs_toolset: 12
+#    - nodejs_version: 6.0.0
+#      platform: x64
+#      msvs_toolset: 12
+#    - nodejs_version: 6.0.0
+#      platform: x86
+#      msvs_toolset: 12
     # custom visual studio 2015 builds
     - nodejs_version: 0.10.40
       platform: x86

scripts/build-appveyor.bat

@@ -42,6 +42,13 @@ IF /I "%platform%"=="x64" powershell Install-Product node $env:nodejs_version x6
 IF /I "%platform%"=="x86" powershell Install-Product node $env:nodejs_version x86
 IF %ERRORLEVEL% NEQ 0 GOTO ERROR
 
+powershell Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
+IF %ERRORLEVEL% NEQ 0 GOTO ERROR
+CALL npm install --global --production npm-windows-upgrade
+IF %ERRORLEVEL% NEQ 0 GOTO ERROR
+CALL npm-windows-upgrade --npm-version 2.15.6 --no-dns-check --no-prompt
+IF %ERRORLEVEL% NEQ 0 GOTO ERROR
+
 :SKIP_APPVEYOR_INSTALL
 IF /I "%msvs_toolset%"=="12" GOTO NODE_INSTALLED