Merge branch 'dev' into ahmed_file

tests/playTests.sh

@@ -215,6 +215,37 @@ $ZSTD tmp -c --compress-literals    -19      | $ZSTD -t
 $ZSTD -b --fast=1 -i0e1 tmp --compress-literals
 $ZSTD -b --fast=1 -i0e1 tmp --no-compress-literals
 
+println "test: --exclude-compressed flag"
+rm -rf precompressedFilterTestDir
+mkdir -p precompressedFilterTestDir
+./datagen $size > precompressedFilterTestDir/input.5
+./datagen $size > precompressedFilterTestDir/input.6
+$ZSTD --exclude-compressed --long --rm -r precompressedFilterTestDir
+sleep 5
+./datagen $size > precompressedFilterTestDir/input.7
+./datagen $size > precompressedFilterTestDir/input.8
+$ZSTD --exclude-compressed --long --rm -r precompressedFilterTestDir
+test ! -f precompressedFilterTestDir/input.5.zst.zst
+test ! -f precompressedFilterTestDir/input.6.zst.zst
+file1timestamp=`date -r precompressedFilterTestDir/input.5.zst +%s`
+file2timestamp=`date -r precompressedFilterTestDir/input.7.zst +%s`
+if [[ $file2timestamp -ge $file1timestamp ]]; then
+  println "Test is successful. input.5.zst is precompressed and therefore not compressed/modified again."
+else
+  println "Test is not successful"
+fi
+#File Extension check.
+./datagen $size > precompressedFilterTestDir/input.zstbar
+$ZSTD --exclude-compressed --long --rm -r precompressedFilterTestDir
+#ZSTD should compress input.zstbar
+test -f precompressedFilterTestDir/input.zstbar.zst
+#Check without the --exclude-compressed flag
+$ZSTD --long --rm -r precompressedFilterTestDir
+#Files should get compressed again without the --exclude-compressed flag.
+test -f precompressedFilterTestDir/input.5.zst.zst
+test -f precompressedFilterTestDir/input.6.zst.zst
+println "Test completed"
+
 println "test : file removal"
 $ZSTD -f --rm tmp
 test ! -f tmp  # tmp should no longer be present
@@ -1207,6 +1238,8 @@ test -f dictionary
 rm -f tmp* dictionary
 
 
+if [ "$isWindows" = false ] ; then
+
 println "\n===>  zstd fifo named pipe test "
 head -c 10 /dev/zero > tmp_original
 mkfifo named_pipe
@@ -1217,4 +1250,6 @@ $DIFF -s tmp_original tmp_decompressed
 rm -rf tmp*
 rm -rf named_pipe
 
+fi
+
 rm -f tmp*