Fix exporting SARIF files from scan-build on Windows.

In Perl, -z is defined as checking if a "file has zero size" and makes no mention what it does when given a directory. It looks like the behavior differs across platforms, which is why on Windows the SARIF file was always being deleted.

Patch by Joe Ranieri.

llvm-svn: 366941

diff --git a/clang/tools/scan-build/libexec/ccc-analyzer b/clang/tools/scan-build/libexec/ccc-analyzer
index 9a4548f..277ed9f 100755 (executable)
--- a/clang/tools/scan-build/libexec/ccc-analyzer
+++ b/clang/tools/scan-build/libexec/ccc-analyzer
@@ -118,7 +118,7 @@ my $ResultFile;
 
 # Remove any stale files at exit.
 END {
-  if (defined $ResultFile && -z $ResultFile) {
+  if (defined $ResultFile && $ResultFile ne "") {
     unlink($ResultFile);
   }
   if (defined $CleanupFile) {
@@ -752,7 +752,7 @@ if ($Action eq 'compile' or $Action eq 'link') {
                                DIR => $HtmlDir);
         $ResultFile = $f;
         # If the HtmlDir is not set, we should clean up the plist files.
-        if (!defined $HtmlDir || -z $HtmlDir) {
+        if (!defined $HtmlDir || $HtmlDir eq "") {
           $CleanupFile = $f;
         }
       }