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From "Lacton (JIRA)" <j...@apache.org>
Subject [jira] Created: (BUILDR-103) buildr recompiles unchanged java files if they are not in default package
Date Wed, 09 Jul 2008 13:59:31 GMT
buildr recompiles unchanged java files if they are not in default package
-------------------------------------------------------------------------

                 Key: BUILDR-103
                 URL: https://issues.apache.org/jira/browse/BUILDR-103
             Project: Buildr
          Issue Type: Bug
          Components: Compilers
    Affects Versions: 1.3.1
            Reporter: Lacton


If a java file is in default package, buildr will recompile it only if it changes. If a java
file is in a named package, buildr will recompile it everytime, even when unecessary.

= Example 1 (default package) =

File src/main/java/Hello.java

<buildfile>
define 'buildr_nopackage' do
  project.version = '1.0'
  package(:jar)
end
</buildfile>

$ buildr compile
(in /home/lacton/workspace/buildr_nopackage, development)
Compiling buildr_nopackage
Compiling buildr_nopackage
Completed in 0.715s
$ buildr compile --trace
(in /home/lacton/workspace/buildr_nopackage, development)
** Invoke buildr:initialize (first_time)
** Execute buildr:initialize
** Invoke buildr_nopackage (first_time)
** Execute buildr_nopackage
** Invoke /home/lacton/workspace/buildr_nopackage/lib/scala-library.jar (first_time)
** Execute /home/lacton/workspace/buildr_nopackage/lib/scala-library.jar
** Invoke /home/lacton/workspace/buildr_nopackage/lib/scala-compiler.jar (first_time)
** Execute /home/lacton/workspace/buildr_nopackage/lib/scala-compiler.jar
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant/1.7.0/ant-1.7.0.jar (first_time,
not_needed)
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant-launcher/1.7.0/ant-launcher-1.7.0.jar
(first_time, not_needed)
** Invoke /home/lacton/.m2/repository/xerces/xercesImpl/2.6.2/xercesImpl-2.6.2.jar (first_time,
not_needed)
** Invoke /var/lib/gems/1.8/gems/buildr-1.3.1.1/lib/buildr/java (first_time, not_needed)
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant-trax/1.7.0/ant-trax-1.7.0.jar (first_time,
not_needed)
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant-junit/1.7.0/ant-junit-1.7.0.jar (first_time,
not_needed)
** Invoke /usr/lib/jvm/java-1.5.0-sun/lib/tools.jar (first_time, not_needed)
** Invoke buildr_nopackage
** Invoke compile (first_time)
** Execute compile
** Invoke buildr_nopackage
** Invoke buildr_nopackage
Compiling buildr_nopackage
** Invoke buildr_nopackage:compile (first_time, not_needed)
** Invoke buildr_nopackage:resources (first_time)
** Execute buildr_nopackage:resources
** Invoke /home/lacton/workspace/buildr_nopackage/src/main/java (first_time, not_needed)
Completed in 0.095s

There is no compilation at all on the second call, as expected.

= Example 2 (named package) =

File src/main/java/mypackage/Hello.java

<buildfile>
define 'buildr_package' do
  project.version = '1.0'
  package(:jar)
end
</buildfile>

$ buildr compile
(in /home/lacton/workspace/buildr_package, development)
Compiling buildr_package
Compiling buildr_package
Completed in 0.664s
$ buildr compile --trace
(in /home/lacton/workspace/buildr_package, development)
** Invoke buildr:initialize (first_time)
** Execute buildr:initialize
** Invoke buildr_package (first_time)
** Execute buildr_package
** Invoke /home/lacton/workspace/buildr_package/lib/scala-library.jar (first_time)
** Execute /home/lacton/workspace/buildr_package/lib/scala-library.jar
** Invoke /home/lacton/workspace/buildr_package/lib/scala-compiler.jar (first_time)
** Execute /home/lacton/workspace/buildr_package/lib/scala-compiler.jar
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant/1.7.0/ant-1.7.0.jar (first_time,
not_needed)
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant-launcher/1.7.0/ant-launcher-1.7.0.jar
(first_time, not_needed)
** Invoke /home/lacton/.m2/repository/xerces/xercesImpl/2.6.2/xercesImpl-2.6.2.jar (first_time,
not_needed)
** Invoke /var/lib/gems/1.8/gems/buildr-1.3.1.1/lib/buildr/java (first_time, not_needed)
[parsing started /home/lacton/workspace/buildr_package/src/main/java/mypackage/Hello.java]
[parsing completed 37ms]
[search path for source files: [/home/lacton/workspace/buildr_package/src/main/java]]
[search path for class files: [/usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/rt.jar, /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/jsse.jar,
/usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/jce.jar, /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/charsets.jar,
/usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/ext/localedata.jar, /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/ext/sunjce_provider.jar,
/usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/ext/dnsns.jar, /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/ext/sunpkcs11.jar,
/usr/lib/jvm/java-1.5.0-sun/lib/tools.jar]]
[loading /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/rt.jar(java/lang/Object.class)]
[loading /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/rt.jar(java/lang/String.class)]
[checking mypackage.Hello]
[wrote /home/lacton/workspace/buildr_package/target/classes/mypackage/Hello.class]
[total 340ms]
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant-trax/1.7.0/ant-trax-1.7.0.jar (first_time,
not_needed)
** Invoke /home/lacton/.m2/repository/org/apache/ant/ant-junit/1.7.0/ant-junit-1.7.0.jar (first_time,
not_needed)
** Invoke /usr/lib/jvm/java-1.5.0-sun/lib/tools.jar (first_time, not_needed)
** Invoke buildr_package
** Invoke compile (first_time)
** Execute compile
** Invoke buildr_package
** Invoke buildr_package
Compiling buildr_package
** Invoke buildr_package:compile (first_time)
** Invoke buildr_package:resources (first_time)
** Execute buildr_package:resources
** Invoke /home/lacton/workspace/buildr_package/src/main/java (first_time, not_needed)
** Execute buildr_package:compile
Compiling buildr_package
javac -classpath /usr/lib/jvm/java-1.5.0-sun/lib/tools.jar -sourcepath /home/lacton/workspace/buildr_package/src/main/java
-d /home/lacton/workspace/buildr_package/target/classes -verbose -g /home/lacton/workspace/buildr_package/src/main/java/mypackage/Hello.java
Completed in 0.744s

Hello.java was recompiled and the file target/classes/mypackage/Hello.class was written once
more, with a new timestamp, although nothing changed between the two compilation.

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