Bug: 29539

More information about using the Log4jListener.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@419881 13f79535-47bb-0310-9956-ffa450edef68

CONTRIBUTORS

@@ -64,6 +64,7 @@ Don Jeffery
 Drew Sudell
 Eli Tucker
 Emmanuel Bourg
+Eric Olsen
 Eric Pugh
 Erik Hatcher
 Erik Langenbach
@@ -141,7 +142,7 @@ Marcel Schutte
 Marcus Börger
 Mariusz Nowostawski
 Mark Hecker
-Mark R. Diggory 
+Mark R. Diggory
 Martijn Kruithof
 Martin Landers
 Martin Poeschl
@@ -175,7 +176,7 @@ Nico Seessle
 Nigel Magnay
 Oliver Merkel
 Oliver Rossmueller
-Oystein Gisnas  
+Oystein Gisnas
 Patrick C. Beard
 Patrick Chanezon
 Patrick G. Heck (Gus Heck)

contributors.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE contributors 
+<!DOCTYPE contributors
 [
 <!ELEMENT name (first?, middle?, last)>
 <!ELEMENT contributors (introduction, name+)>
@@ -267,6 +267,10 @@
     <first>Emmanuel</first>
     <last>Bourg</last>
   </name>
+  <name>
+    <first>Eric</first>
+    <last>Olsen</last>
+  </name>
   <name>
     <first>Eric</first>
     <last>Pugh</last>
@@ -982,4 +986,4 @@
     <first>Zdenek</first>
     <last>Wagner</last>
   </name>
-</contributors>
+</contributors>

docs/manual/listeners.html

@@ -302,6 +302,38 @@ corresponding Log4j level.</p>
 
 </blockquote>
 
+<p>To use Log4j you will need the Log4j jar file and a 'log4j.properties'
+configuration file.  Both should be placed somewhere in your Ant
+classpath. If the log4j.properties is in your project root folder you can
+add this with <i>-lib</i> option:</p>
+
+<blockquote>
+<pre><code>ant -listener org.apache.tools.ant.listener.Log4jListener -lib .</code></pre>
+</blockquote>
+
+<p>If, for example, you wanted to capture the same information output to the
+console by the DefaultLogger and send it to a file named 'build.log', you
+could use the following configuration:</p>
+
+<blockquote>
+
+<pre><code>log4j.rootLogger=ERROR, LogFile
+log4j.logger.org.apache.tools.ant.Project=INFO
+log4j.logger.org.apache.tools.ant.Target=INFO
+log4j.logger.org.apache.tools.ant.taskdefs=INFO
+log4j.logger.org.apache.tools.ant.taskdefs.Echo=WARN
+
+log4j.appender.LogFile=org.apache.log4j.FileAppender
+log4j.appender.LogFile.layout=org.apache.log4j.PatternLayout
+log4j.appender.LogFile.layout.ConversionPattern=[%6r] %8c{1} : %m%n
+log4j.appender.LogFile.file=build.log
+</code></pre>
+
+</blockquote>
+
+<p>For more information about configuring Log4J see <a href="http://logging.apache.org/log4j/docs/documentation.html">its
+documentation page</a>.</p>
+
 <h3><a name="XmlLogger">XmlLogger</a></h3>
 
 <p>Writes all build information out to an XML file named log.xml, or the value
@@ -363,4 +395,4 @@ developers.</p>
 Reserved.</p>
 
 </body>
-</html>
+</html>