[LUCENENET-454] added checks in build.targets to make sure ArtifactPa…

…ths isn't empty, causing the wrong files to be wiped (critical!)

fixed build.cmd files to set proper environment variables

git-svn-id: https://svn.apache.org/repos/asf/incubator/lucene.net/trunk@1198125 13f79535-47bb-0310-9956-ffa450edef68

build.cmd

@@ -17,8 +17,8 @@ GOTO LicenseEnd
  limitations under the License.
 :LicenseEnd
 
-SET TARGETS="simple"
-SET AREA="all"
+SET TARGETS=simple
+SET AREA=all
 SET CONFIGURATION=Release
 IF [%1] NEQ [] SET TARGETS=%1
 IF [%2] NEQ [] SET AREA=%2

build/scripts/build.cmd

@@ -17,8 +17,8 @@ GOTO LicenseEnd
  limitations under the License.
 :LicenseEnd
 
-SET TARGETS ="all"
-SET AREA = "all"
+SET TARGETS=all
+SET AREA=all
 IF [%1] NEQ [] SET TARGETS=%1
 IF [%2] NEQ [] SET AREA=%2
 

build/scripts/build.targets

@@ -68,11 +68,20 @@
 	  <Import Project="SpellChecker/project.targets" Condition="'$(Area)' == 'spellchecker'" />
 
 
-	<ItemGroup>
+	<ItemGroup Condition="'$(ArtifactsFolder)' != ''">
 		<CleanFiles Include="$(ArtifactsFolder)\**\*.*" />
 		<CleanFiles Include="$(RootFolder)\bin\**\*"  Exclude="$(RootFolder)\**\.svn\*; $(RootFolder)\.svn\*" />
 	</ItemGroup>	
 
+    <Target Name="diag">
+        <Message Text="TempFolder=$(TempFolder)" />
+        <Message Text="BuildFolder=$(BuildFolder)" />
+        <Message Text="ScriptsFolder=$(ScriptsFolder)" />
+        <Message Text="RootFolder=$(RootFolder)" />
+        <Message Text="Area=$(Area)" />
+        <Message Text="ArtifactsFolder=$(ArtifactsFolder)" />
+    </Target>
+
 	<Target Name="paths">
 		<CallTarget Targets="@(PathsTarget)" />
 	</Target>
@@ -83,8 +92,9 @@
 	</Target>
 
 	<Target Name="clean">
+        <Error Condition="'$(ArtifactsFolder)' == ''" Text="ArtifactsFolder is empty!  'Area' may be empty or invalid." />
 		<Message Text="Files To Clean: @(CleanFiles)" />
-		<Delete Files="@(CleanFiles)" /> 
+		<Delete Files="@(CleanFiles)" />
 	</Target>