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http://issues.apache.org/bugzilla/show_bug.cgi?id=43799
Summary: Touch task fails when fileset is empty
Product: Ant
Version: 1.7.0
Platform: PC
OS/Version: Linux
Status: NEW
Severity: major
Priority: P3
Component: Core tasks
AssignedTo: dev@ant.apache.org
ReportedBy: chris.lear@laculine.com
The touch task gives the error "Specify at least one source--a file or resource
collection." when the nested fileset yields no files to touch.
It's a problem because I want to be able to touch files only on certain
conditions. This build.xml snippet has been working fine in ant 1.6.4:
<touch>
<fileset dir="web/WEB-INF"
includesfile="conf/filteredConfigFiles">
<not>
<depend targetdir=".">
<mapper type="merge" to="build.properties"/>
</depend>
</not>
</fileset>
</touch>
This bug appears to have been introduced in revision 277936, Mon Mar 14 11:45:29
2005 UTC. See the diff here (line 224):
http://svn.apache.org/viewvc/ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/Touch.java?r1=277936&r2=349637&diff_format=h
I can get it working using this change:
$ svn diff src/main/org/apache/tools/ant/taskdefs/Touch.java
Index: src/main/org/apache/tools/ant/taskdefs/Touch.java
===================================================================
--- src/main/org/apache/tools/ant/taskdefs/Touch.java (revision 592480)
+++ src/main/org/apache/tools/ant/taskdefs/Touch.java (working copy)
@@ -222,7 +222,7 @@
* @since Ant 1.6.3
*/
protected synchronized void checkConfiguration() throws BuildException {
- if (file == null && resources.size() == 0) {
+ if (file == null && resources==null) {
throw new BuildException("Specify at least one source"
+ "--a file or resource collection.");
}
I'm not sure this is 100% appropriate, but it works for me.
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