Fixes no-overwrite test failure (#159)

* fix paring version problem in no-overwrite tests

* fix no-overwriten tests when running in  windows

* fix bug resulting from line seperator difference in Windows

* remove redundant code

* fix the version position problem

Co-authored-by: yangnuoyu <yangnuoyu@penguin>

Author: yangnuoyu

src/it/projects/no-overwrite-3.6.2-before/verify.groovy

@@ -16,7 +16,9 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-String mavenVersion = "./mvnw -v".execute().text.split()[2]
+String os = System.getProperty("os.name");
+String[] mavenWords = os.contains("Windows") ? "mvnw.cmd -v".execute().text.split() : "./mvnw -v".execute().text.split()
+String mavenVersion = mavenWords[1] == "Maven" ? mavenWords[2] : mavenWords[3]
 String[] mavenVersionArray = mavenVersion.split("\\.")
 int[] versionArray = new int[3]
 for (int i = 0; i < 3; i++)

src/it/projects/no-overwrite-3.6.3-later/verify.groovy

@@ -16,7 +16,10 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-String mavenVersion = "./mvnw -v".execute().text.split()[2]
+
+String os = System.getProperty("os.name").split()[0]
+String[] mavenWords = os.contains("Windows") ? "mvnw.cmd -v".execute().text.split() : "./mvnw -v".execute().text.split()
+String mavenVersion = mavenWords[1] == "Maven" ? mavenWords[2] : mavenWords[3]
 String[] mavenVersionArray = mavenVersion.split("\\.")
 int[] versionArray = new int[3]
 for (int i = 0; i < 3; i++)

src/main/java/org/codehaus/mojo/flatten/FlattenMojo.java

@@ -492,13 +492,15 @@ protected void writePom( Model pom, File pomFile, String headerComment )
     protected void writeStringToFile( String data, File file, String encoding )
         throws MojoExecutionException
     {
-
+        if (System.getProperty("os.name").contains("Windows"))
+        {
+            data = data.replaceAll("\n","\r\n");
+        }
         byte[] binaryData;
 
         try
         {
             binaryData = data.getBytes( encoding );
-
             if ( file.isFile() && file.canRead() && file.length() == binaryData.length )
             {
                 try (InputStream inputStream = new FileInputStream( file ))