Add <os> and <exec> support for OS/400.

PR: 13047
Submitted by:	Brian Farrar <brian_farrar at countrywide.com>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@273380 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -37,6 +37,11 @@ Fixed bugs:
 * <junitreport> created an empty junit-noframes.html if no format had
   been specified.
 
+* <basename> would remove more than it should if the file name
+  contained more than one dot.
+
+* <property environment=... /> now works on OS/400.
+
 Other changes:
 --------------
 
@@ -81,6 +86,8 @@ Other changes:
 * The SOS and VSS tasks will no longer unconditionally prepend a $ to
   vsspath or projectpath.
 
+* OS/400 now gets detected by the os condition.
+
 Changes from Ant 1.5beta3 to Ant 1.5
 ====================================
 

docs/manual/CoreTasks/conditions.html

@@ -94,6 +94,7 @@ the tests succeed.
   <li>os/2 (for OS/2)</li>
   <li>win9x for Microsoft Windows 95 and 98</li>
   <li>z/os for z/OS and OS/390</li>
+  <li>os/400 for OS/400</li>
 </ul>
 
 <h4>equals</h4>

src/main/org/apache/tools/ant/taskdefs/Execute.java

@@ -238,7 +238,7 @@ public class Execute {
             // Alternatively one could use: /bin/sh -c env
             String[] cmd = {"/usr/bin/env"};
             return cmd;
-        } else if (Os.isFamily("netware")) {
+        } else if (Os.isFamily("netware") || Os.isFamily("os/400")) {
             String[] cmd = {"env"};
             return cmd;
         } else {
@@ -259,7 +259,12 @@ public class Execute {
     public static String toString(ByteArrayOutputStream bos) {
         if (Os.isFamily("z/os")) {
             try {
-                bos.toString("Cp1047");
+                return bos.toString("Cp1047");
+            } catch (java.io.UnsupportedEncodingException e) {
+            }
+        } else if (Os.isFamily("os/400")) {
+            try {
+                return bos.toString("Cp500");
             } catch (java.io.UnsupportedEncodingException e) {
             }
         }

src/main/org/apache/tools/ant/taskdefs/condition/Os.java

@@ -99,6 +99,7 @@ public class Os implements Condition {
      *               <li>windows</li>
      *               <li>win9x</li>
      *               <li>z/os</li>
+     *               <li>os/400</li>
      *               </ul>
      */
     public void setFamily(String f) {family = f.toLowerCase(Locale.US);}
@@ -224,6 +225,8 @@ public class Os implements Condition {
                 } else if (family.equals("z/os")) {
                     isFamily = osName.indexOf("z/os") > -1
                         || osName.indexOf("os/390") > -1;
+                } else if (family.equals("os/400")) {
+                    isFamily = osName.indexOf("os/400") > -1;
                 } else {
                     throw new BuildException(
                         "Don\'t know how to detect os family \""