Add proguardInJarsFilter key

[yuchangyuan]

This key is similar to makeInJarFilter key in xsbt-proguard-plugin.

[appamatto]

Hmm, maybe a "cleaner" way is to provide a setting that will exclude some files from all jars:

proguardExclude := Seq("!**/gwt.xml", "!**/*.png")

And then repeat these exclusions across all JARs.

I think the partial function exclusions are going to be too complicated to use. At that point, the user should probably exclude the files from his JAR manually and republish.

[yuchangyuan]

My original usage is to use this option to replace some classes with my own version:

    proguardInJarsFilter in Android <<= (proguardInJarsFilter in Android) {
      (proguardInJarsFilter) => {
        (file) => {
          val s = file.getName
          if (s.matches("sesame-sail-api-.*.jar")) {
            "\"" + file + "\"(!org/openrdf/sail/helpers/DirectoryLockManager*)"
          }
          else if (s.matches("sesame-util-.*.jar")) {
            "\"" + file + "\"(!info/aduna/lang/service/ServiceRegistry*)"
          }
          else if (s.matches("xml-apis-.*.jar")) {
            "\"" + file + "\"(!**.class)"
          }
          else if (s.matches("xercesImpl-.*.jar")) {
            "\"" + file + "\"(!javax/**.class)"
          }
          else {
            proguardInJarsFilter(file)
          }
        }
      }
    },

Since #154 fullfill my needs(and do more), I will just close this pull.

[yuchangyuan]

Sorry, I just find that #154 is not merged but simply closed, so I reopen my issue. Please consdier either merge #154 or this pull, thank you.

If I am wrong(actually merged), please close this pull.

[appamatto]

I rewrote the patch to be a little more user-friendly. Do you think it will fix your use case? The setting takes a file and returns a sequence of exclusions. This is the default:

proguardInJarsFilter := { jar: File =>
  Seq("!META-INF/MANIFEST.MF", "!library.properties")
}

This is transformed into the necessary foo.jar(!META-INF/MANIFEST.MF,...) format.

[yuchangyuan]

I think it will fix for my use case, thank you very much.