Add support for preserving timestamps on compression

[allthecodes]

Currently there's no support to carry over the timestamp from the input file to the output file.

Below is a patch to achieve this:

diff --git a/src/main/java/net_alchim31_maven_yuicompressor/YuiCompressorMojo.java b/src/main/java/net_alchim31_maven_yuicompressor/YuiCompressorMojo.java
index d62b47a..d97e2fb 100644
--- a/src/main/java/net_alchim31_maven_yuicompressor/YuiCompressorMojo.java
+++ b/src/main/java/net_alchim31_maven_yuicompressor/YuiCompressorMojo.java
@@ -47,8 +47,17 @@ public class YuiCompressorMojo extends MojoSupport {
*
* @parameter expression="${maven.yuicompressor.nosuffix}" default-value="false"
*/
+
private boolean nosuffix;

• /**

• \* If maintainTimestamps is true, the timestamps found on the files will be reapplied after compression
  

• \* 
  

• \* @parameter expression="${maven.yuicompressor.maintainTimestamps}" default-value="true"
  

• */
  

• private boolean maintainTimestamps;

• /**

  • Insert line breaks in output after the specified column number.
    *
    @@ -172,6 +181,7 @@ public class YuiCompressorMojo extends MojoSupport {
    getLog().debug("compress file :" + src.toFile()+ " to " + src.toDestFile(suffix));
    }
    File inFile = src.toFile();

•    Long inFileTimestamp = inFile.lastModified();
   File outFile = src.toDestFile(suffix);
  
   getLog().debug("only compress if input file is younger than existing output file");
  

  @@ -212,6 +222,10 @@ public class YuiCompressorMojo extends MojoSupport {
  }
  FileUtils.forceDelete(outFile);
  FileUtils.rename(outFileTmp, outFile);

•    if (maintainTimestamps)
  

•    {
  

•       outFile.setLastModified(inFileTimestamp);
  

•    }
   File gzipped = gzipIfRequested(outFile);
   if (statistics) {
       inSizeTotal_ += inFile.length();