Hello,
I recognized some strange behavior while calling a conditional target
with <antcall/>. The goal was a switch between different build modes.
Here's the code:
<project name="test" default="generate" basedir=".">
<property name="build_mode" value="foo"/>
<!-- -->
<target name="init">
<condition property="build_bar">
<equals arg1="${build_mode}" arg2="bar"
casesensitive="yes" trim="yes"/>
</condition>
<echo message="... property build_bar: ${build_bar}"/>
<condition property="build_foo">
<isfalse value="${build_bar}"/>
</condition>
<echo message="... property build_foo: ${build_foo}"/>
</target>
<!-- -->
<target name="generate" depends="init">
<echo>generate ...</echo>
<antcall target="generate_foo"/>
<antcall target="generate_bar"/>
<echo>finished.</echo>
</target>
<!-- -->
<target name="generate_foo" if="${build_foo}" depends="init">
<echo>generate foo ...</echo>
</target>
<!-- -->
<target name="generate_bar" if="${build_bar}" depends="init">
<echo>generate bar ...</echo>
</target>
</project>
The target "generate_foo" is skipped, with the verbose option I get the
follwing lines:
...
[echo] ... property build_foo: true
generate_foo:
Skipped because property 'true' not set.
...
Is this a bug or a feature?
(I can solve my problem by rearranging the tasks, but I'm interested in
an explanation.)
Stefan
----
Here's the whole verbose output:
Apache Ant version 1.7.1 compiled on June 27 2008
Buildfile: build.xml
Detected Java version: 1.6 in: C:\Programme\Java\jdk1.6.0_04\jre
Detected OS: Windows XP
parsing buildfile C:\temp\build.xml with URI = file:/C:/temp/build.xml
Project base dir set to: C:\temp
[antlib:org.apache.tools.ant] Could not load definitions from resource
org/apache/tools/ant/antlib.xml. It could not be found.
Build sequence for target(s) `generate' is [init, generate]
Complete build sequence is [init, generate, generate_bar, generate_foo, ]
init:
Property "build_bar" has not been set
[echo] ... property build_bar: ${build_bar}
Property "build_bar" has not been set
[echo] ... property build_foo: true
generate:
[echo] generate ...
Project base dir set to: C:\temp
[antcall] calling target(s) [generate_foo] in build file C:\temp\build.xml
parsing buildfile C:\temp\build.xml with URI = file:/C:/temp/build.xml
Project base dir set to: C:\temp
Override ignored for property "build_mode"
Build sequence for target(s) `generate_foo' is [init, generate_foo]
Complete build sequence is [init, generate_foo, generate, generate_bar, ]
[antcall] Entering C:\temp\build.xml...
Build sequence for target(s) `generate_foo' is [init, generate_foo]
Complete build sequence is [init, generate_foo, generate, generate_bar, ]
init:
Property "build_bar" has not been set
[echo] ... property build_bar: ${build_bar}
Property "build_bar" has not been set
Override ignored for property "build_foo"
[echo] ... property build_foo: true
generate_foo:
Skipped because property 'true' not set.
[antcall] Exiting C:\temp\build.xml.
Project base dir set to: C:\temp
[antcall] calling target(s) [generate_bar] in build file C:\temp\build.xml
parsing buildfile C:\temp\build.xml with URI = file:/C:/temp/build.xml
Project base dir set to: C:\temp
Override ignored for property "build_mode"
Build sequence for target(s) `generate_bar' is [init, generate_bar]
Complete build sequence is [init, generate_bar, generate, generate_foo, ]
[antcall] Entering C:\temp\build.xml...
Build sequence for target(s) `generate_bar' is [init, generate_bar]
Complete build sequence is [init, generate_bar, generate, generate_foo, ]
init:
Property "build_bar" has not been set
[echo] ... property build_bar: ${build_bar}
Property "build_bar" has not been set
Override ignored for property "build_foo"
[echo] ... property build_foo: true
generate_bar:
Property "build_bar" has not been set
Property "build_bar" has not been set
Property "build_bar" has not been set
Skipped because property '${build_bar}' not set.
[antcall] Exiting C:\temp\build.xml.
[echo] finished.
BUILD SUCCESSFUL
Total time: 0 seconds
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