optionally don't follow redirects in <http>

https://bz.apache.org/bugzilla/show_bug.cgi?id=58840

WHATSNEW

@@ -48,6 +48,9 @@ Other changes:
    addition to filesets.
    Bugzilla Report 50769
 
+ * The <http> condition has a new optional attribute followRedirects.
+   Bugzilla Report 58840
+
 Changes from Ant 1.9.5 TO Ant 1.9.6
 ===================================
 

manual/Tasks/conditions.html

@@ -229,6 +229,13 @@ of 400 or greater are viewed as invalid.</p>
       <em>since Ant 1.8.0</em></td>
     <td align="center">No</td>
   </tr>
+  <tr>
+    <td valign="top">followRedirects</td>
+    <td valign="top">Whether redirects should be followed. The default
+      is <code>true</code><br/>
+      <em>since Ant 1.9.7</em></td>
+    <td align="center">No</td>
+  </tr>
 </table>
 
 <h4><a name="socket">socket</a></h4>

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

@@ -41,7 +41,7 @@ public class Http extends ProjectComponent implements Condition {
 
     private String spec = null;
     private String requestMethod = DEFAULT_REQUEST_METHOD;
-
+    private boolean followRedirects = true;
 
     /**
      * Set the url attribute
@@ -79,6 +79,15 @@ public class Http extends ProjectComponent implements Condition {
             : method.toUpperCase(Locale.ENGLISH);
     }
 
+    /**
+     * Whether redirects sent by the server should be followed,
+     * defaults to true.
+     * @since Ant 1.9.7
+     */
+    public void setFollowRedirects(boolean f) {
+        followRedirects = f;
+    }
+
     /**
      * @return true if the HTTP request succeeds
      * @exception BuildException if an error occurs
@@ -95,6 +104,7 @@ public class Http extends ProjectComponent implements Condition {
                 if (conn instanceof HttpURLConnection) {
                     HttpURLConnection http = (HttpURLConnection) conn;
                     http.setRequestMethod(requestMethod);
+                    http.setInstanceFollowRedirects(followRedirects);
                     int code = http.getResponseCode();
                     log("Result code for " + spec + " was " + code,
                         Project.MSG_VERBOSE);