Add Ruby magics and pathless magic for Escript, Perl, PHP, Python

Also:
- Remove empty MAGICS for e.g. CSharp, Haskell, etc.

Author: idodeclare

src/org/opensolaris/opengrok/analysis/csharp/CSharpAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.csharp;
@@ -35,11 +36,8 @@ public class CSharpAnalyzerFactory extends FileAnalyzerFactory {
         "CS"
     };
 
-    private static final String[] MAGICS = {
-    };
-
     public CSharpAnalyzerFactory() {
-        super(null, null, SUFFIXES, MAGICS, null, "text/plain", Genre.PLAIN, name);
+        super(null, null, SUFFIXES, null, null, "text/plain", Genre.PLAIN, name);
     }
 
     @Override

src/org/opensolaris/opengrok/analysis/erlang/ErlangAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.erlang;
@@ -35,7 +36,8 @@ public class ErlangAnalyzerFactory extends FileAnalyzerFactory {
         "ERL", "HRL", "ESCRIPT"
     };
     private static final String[] MAGICS = {
-        "#!/usr/bin/env escript"
+        "#!/usr/bin/env escript",
+        "#!escript"
     };
 
     public ErlangAnalyzerFactory() {

src/org/opensolaris/opengrok/analysis/haskell/HaskellAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.haskell;
@@ -39,11 +40,9 @@ public class HaskellAnalyzerFactory extends FileAnalyzerFactory {
         "HS",
         "HSC"
     };
-    private static final String[] MAGICS = {
-    };
 
     public HaskellAnalyzerFactory() {
-        super(null, null, SUFFIXES, MAGICS, null, "text/plain", Genre.PLAIN, name);
+        super(null, null, SUFFIXES, null, null, "text/plain", Genre.PLAIN, name);
     }
 
     @Override

src/org/opensolaris/opengrok/analysis/javascript/JavaScriptAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.javascript;
@@ -36,11 +37,8 @@ public class JavaScriptAnalyzerFactory extends FileAnalyzerFactory {
         "TS"
     };
 
-    private static final String[] MAGICS = {    
-    };
-
     public JavaScriptAnalyzerFactory() {
-        super(null, null, SUFFIXES, MAGICS, null, "text/plain", Genre.PLAIN, name);
+        super(null, null, SUFFIXES, null, null, "text/plain", Genre.PLAIN, name);
     }
 
     @Override

src/org/opensolaris/opengrok/analysis/json/JsonAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.json;
@@ -35,11 +36,8 @@ public class JsonAnalyzerFactory extends FileAnalyzerFactory {
         "JSON"        
     };
 
-    private static final String[] MAGICS = {    
-    };
-
     public JsonAnalyzerFactory() {
-        super(null, null, SUFFIXES, MAGICS, null, "text/plain", Genre.PLAIN, name);
+        super(null, null, SUFFIXES, null, null, "text/plain", Genre.PLAIN, name);
     }
 
     @Override

src/org/opensolaris/opengrok/analysis/perl/PerlAnalyzerFactory.java

@@ -48,7 +48,8 @@ public class PerlAnalyzerFactory extends FileAnalyzerFactory {
         "#!/usr/bin/env perl",
         "#!/usr/bin/perl",
         "#!/usr/local/bin/perl",
-        "#!/bin/perl"
+        "#!/bin/perl",
+        "#!perl",
     };
 
     public PerlAnalyzerFactory() {

src/org/opensolaris/opengrok/analysis/php/PhpAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.php;
@@ -41,7 +42,8 @@ public class PhpAnalyzerFactory extends FileAnalyzerFactory {
     private static final String[] MAGICS = {
         "#!/usr/bin/env php",
         "#!/usr/bin/php",
-        "#!/bin/php"
+        "#!/bin/php",
+        "#!php"
     };
 
     public PhpAnalyzerFactory() {

src/org/opensolaris/opengrok/analysis/python/PythonAnalyzerFactory.java

@@ -19,6 +19,7 @@
 
 /*
  * Copyright (c) 2010, 2015 Oracle and/or its affiliates. All rights reserved.
+ * Portions Copyright (c) 2017, Chris Fraire <[email protected]>.
  */
 
 package org.opensolaris.opengrok.analysis.python;
@@ -45,7 +46,8 @@ public class PythonAnalyzerFactory extends FileAnalyzerFactory {
     private static final String[] MAGICS = {
         "#!/usr/bin/env python",
         "#!/usr/bin/python",
-        "#!/bin/python"
+        "#!/bin/python",
+        "#!python"
     };
 
     public PythonAnalyzerFactory() {

src/org/opensolaris/opengrok/analysis/ruby/RubyAnalyzerFactory.java

@@ -40,12 +40,20 @@ public class RubyAnalyzerFactory extends FileAnalyzerFactory {
         "RB",
         "RUBY"
     };
+    private static final String[] MAGICS = {
+        "#!/usr/bin/env ruby",
+        "#!/usr/bin/ruby",
+        "#!/usr/local/bin/ruby",
+        "#!/bin/ruby",
+        "#!ruby",
+    };
 
     /**
      * Creates a new instance of {@link RubyAnalyzerFactory}.
      */
     public RubyAnalyzerFactory() {
-        super(null, null, SUFFIXES, null, null, "text/plain", Genre.PLAIN, name);
+        super(null, null, SUFFIXES, MAGICS, null, "text/plain", Genre.PLAIN,
+            name);
     }
 
     /**