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Tue, 02 October 2012 05:14

Eclipse User

Hello,

is it possible to headless build a simple Xtext project with Ant (without eclipse and without Maven)?

Following:

<java classpathref="xtend-compiler" classname="org.eclipse.xtend.core.compiler.batch.Main" fork="true" failonerror="yes">
<arg value="-encoding"/>
<arg value="UTF-8"/>
<arg value="-d"/>
<arg value="ant/xtend-src"/>
<arg value="-cp"/>
<arg value="${libs}/org.eclipse.xtext_2.3.1.v201208210947.jar; ..."/>
<arg value="src-gen"/>
<arg value="src"/>
</java>

but it ends with an endless flow of exceptions starting with

[java] 0 ERROR AbstractClassMirror - resource is empty: java:/Objects/org.eclipse.xtext.generator.IGenerator
[java] 0 [main] ERROR org.eclipse.xtext.common.types.access.impl.AbstractClassMirror - resource is empty: java:/Objects/org.eclipse.xtext.generator.IGenerator
[java] 16 ERROR LazyLinkingResource - resolution of uriFragment 'xtextLink_::0.0.1::3::/2' failed.
[java] java.lang.IllegalStateException: Resource has not been loaded
[java] at org.eclipse.xtext.common.types.access.impl.ClasspathTypeProvider.findTypeByClass(ClasspathTypeProvider.java:128)
[java] at org.eclipse.xtext.common.types.access.impl.ClasspathTypeProvider.findTypeByName(ClasspathTypeProvider.java:82)
[java] at org.eclipse.xtext.common.types.xtext.AbstractTypeScope.getSingleElement(AbstractTypeScope.java:54)
[java] at org.eclipse.xtext.scoping.impl.AbstractScope.getSingleElement(AbstractScope.java:105)
[java] at org.eclipse.xtext.scoping.impl.AbstractScope.getSingleElement(AbstractScope.java:105)
[java] at org.eclipse.xtext.linking.impl.DefaultLinkingService.getLinkedObjects(DefaultLinkingService.java:121)
[java] at org.eclipse.xtext.linking.lazy.LazyLinkingResource.getEObject(LazyLinkingResource.java:179)
[java] at org.eclipse.xtext.xbase.resource.XbaseResource.access$0(XbaseResource.java:1)
[java] at org.eclipse.xtext.xbase.resource.XbaseResource$2.exec(XbaseResource.java:239)
[java] at org.eclipse.xtext.xbase.resource.XbaseResource$2.exec(XbaseResource.java:1)
[java] at org.eclipse.xtext.util.OnChangeEvictingCache.execWithoutCacheClear(OnChangeEvictingCache.java:124)
[java] at org.eclipse.xtext.xbase.resource.XbaseResource.getEObject(XbaseResource.java:237)
[java] at org.eclipse.xtend.core.resource.XtendResource.getEObject(XtendResource.java:82)
[java] at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getEObject(ResourceSetImpl.java:219)
[java] at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:203)
[java] at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:263)
[java] at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eResolveProxy(BasicEObjectImpl.java:1483)
[java] at org.eclipse.xtend.core.xtend.impl.XtendImportImpl.getImportedType(XtendImportImpl.java:212)

....

Thank you!!

PS
It also look's like only the last source directory get considered by the Xtend compiler. The reverse sequence ('src' than 'src-gen') ends with

[java] 0 INFO XtendBatchCompiler - No sources to compile in 'src-gen'
[java] 0 [main] INFO org.eclipse.xtend.core.compiler.batch.XtendBatchCompiler - No sources to compile in 'src-gen'

Re: Headless ANT build [message #930503 is a reply to message #930388]

Tue, 02 October 2012 07:32

Eclipse User

Hi Boris,
could you please attach your project as zip?

Thanks,
Dennis.

Re: Headless ANT build [message #930608 is a reply to message #930503]

Tue, 02 October 2012 09:33

Eclipse User

The test project is in the headless-build-problem.zip.

Since only max. 2 MB files are allowed, I removed the eclipse plugins from the

org.xtext.example.mydsl/lib

directory. The jar files upon antlr generator were copied from the eclipse/plugins directory:

antlr-generator-3.2.0.jar
com.google.guava_10.0.1.v201203051515.jar
com.google.inject_3.0.0.v201203062045.jar
com.ibm.icu_4.4.2.v20110208.jar
javax.inject_1.0.0.v20091030.jar
org.antlr.runtime_3.2.0.v201101311130.jar
org.apache.commons.cli_1.2.0.v201105210650.jar
org.apache.commons.logging_1.0.4.v201101211617.jar
org.apache.log4j_1.2.15.v201012070815.jar
org.eclipse.emf.codegen.ecore_2.7.0.v20120130-0943.jar
org.eclipse.emf.codegen_2.6.0.v20120130-0943.jar
org.eclipse.emf.common_2.7.0.v20120127-1122.jar
org.eclipse.emf.ecore.xmi_2.7.0.v20120127-1122.jar
org.eclipse.emf.ecore_2.7.0.v20120127-1122.jar
org.eclipse.emf.mwe.core_1.2.1.v201206110920.jar
org.eclipse.emf.mwe.utils_1.2.1.v201206110920.jar
org.eclipse.emf.mwe2.language_2.3.0.v201206120758.jar
org.eclipse.emf.mwe2.launch_2.3.0.v201206120758.jar
org.eclipse.emf.mwe2.lib_2.3.0.v201206110920.jar
org.eclipse.emf.mwe2.runtime_2.3.0.v201206110920.jar
org.eclipse.jdt.core_3.7.0.v_B61.jar
org.eclipse.xpand_1.2.0.v201206110941.jar
org.eclipse.xtend.core_2.3.1.v201208210947.jar
org.eclipse.xtend.lib_2.3.1.v201208210947.jar
org.eclipse.xtend.typesystem.emf_1.2.0.v201206110941.jar
org.eclipse.xtend_1.2.0.v201206110941.jar
org.eclipse.xtext.common.types_2.3.1.v201208210947.jar
org.eclipse.xtext.generator_2.3.1.v201208210947.jar
org.eclipse.xtext.util_2.3.1.v201208210947.jar
org.eclipse.xtext.xbase.lib_2.3.1.v201208210947.jar
org.eclipse.xtext.xbase_2.3.1.v201208210947.jar
org.eclipse.xtext_2.3.1.v201208210947.jar

Versions:
- Eclipse
- Eclipse Java EE IDE for Web Developers.
- Version: Indigo Release
- Build id: 20110615-0604
- Xtext 2.3.1

My build.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project name="project" default="all">
<property name="workflow" value="src/org/xtext/example/mydsl/GenerateMyDsl.mwe2" />

<path id="wme2-classpath">
<fileset dir="lib" includes="*.jar" />
<pathelement location="src"/>
</path>

<path id="xtend-compiler-classpath">
<fileset dir="lib" includes="*.jar" />
</path>

<target name="compile">
<mkdir dir="ant" />
<mkdir dir="ant/xtend-src" />
<java classpathref="xtend-compiler-classpath" classname="org.eclipse.xtend.core.compiler.batch.Main" fork="true" failonerror="yes">
<arg value="-encoding" />
<arg value="UTF-8" />
<arg value="-d" />
<arg value="ant/xtend-src" />
<arg value="-cp" />
<arg value="lib/org.eclipse.xtext_2.3.1.v201208210947.jar" /> 
<arg value="src-gen" />
<arg value="src" />
</java>
</target>

<target name="run-workflow">
<java classpathref="wme2-classpath" classname="org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher" fork="true" failonerror="yes">
<jvmarg value="-Dfile.encoding=UTF-8" />
<arg value="${workflow}" />
</java>
</target>

<target name="all" depends="run-workflow,compile" description="Build all">

</target>

</project>

The single lib/org.eclipse.xtext_2.3.1.v201208210947.jar file on the Xtend compiler class path produces the exceptions.

Thank you for the help!

Attachment: headless-build-problem.zip
(Size: 144.52KB, Downloaded 178 times)

Re: Headless ANT build [message #930641 is a reply to message #930608]

Tue, 02 October 2012 10:02

Eclipse User

Hi Boris,
first of all, you can use our standalone uber jar, it contains most of the needed eclipse stuff it's about 10 mb big.
Here is the latest SNAPSHOT: http://build.eclipse.org/common/xtend/maven/org/eclipse/xtend/org.eclipse.xtend.standalone/2.4.0-SNAPSHOT/

Second, class path entries have to be separated by the java.io.File.pathSeparatorChar char, the same is true for the last argument, which is the source folder/-s argument. In unix filesystems following works for me (I call the compile target directly without mwe2 stuff):

<arg value="lib/org.eclipse.xtext.xbase.lib_2.4.0.v201210011132.jar:lib/org.eclipse.xtend.standalone-2.4.0-20120828.110609-1.jar" />
<arg value="src-gen:src" />

Best regards,
Dennis.

[Updated on: Tue, 02 October 2012 10:03] by Moderator

Re: Headless ANT build [message #935228 is a reply to message #930388]

Sat, 06 October 2012 16:52

Eclipse User

Hello Dennis,

thank you very much for the help. It works!
My problem was to understand, that the exception

- java.lang.IllegalStateException: Resource has not been loaded

just means, that the class can't be loaded, while some other required class isn't on the class path.

The tip with the "src:src-gen" was also very helpful.

Best Regards,
Boris Brodski

PS
I just recorded a screen cast (XtextCast) about building Xtext projects with Ant:
xtextcasts.org(SLASH)episodes/12-building-with-ant

Re: Headless ANT build [message #935243 is a reply to message #935228]

Sat, 06 October 2012 17:11

Eclipse User

Hello Dennis,

Here is the URL again: http://xtextcasts.org/episodes/12-building-with-ant

Regards,
Boris

[Updated on: Sat, 06 October 2012 17:12] by Moderator

Re: Headless ANT build [message #1265182 is a reply to message #935243]

Wed, 05 March 2014 14:56

Eclipse User

Hi Brodski,

I Need small help, the headless build we can run easily if it is in the current working directory, lets assume if i want to run my build file out of that particular directory can you just point me where exactly i need to change the paths( I was bit confused while doing that) your help is appreciated. Here is the folder structure of my project

sample(folder)--
|- org.xtext.sample
|- org.xtext.sample.ui
|- org.xtext.sample.sdk and test project
|- build.xml
I have written the build.xml file out side the Xtext project that means in the sample folder. so i am not very sure where to change this things.

Thanks.

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