[2.0] Building Grails app with Gradle

[::SammyRulez::]

Hi folks

I'm experimenting Gradle (1.0-m7) to build a Grails 2.0.0 app. I'm a
gradle newbbe...

I'm using this build file ( https://gist.github.com/1779558 )


grailsVersion = '2.0.0'

buildscript {
    repositories {
        mavenCentral()
        mavenRepo urls: 'http://snapshots.repository.codehaus.org'
        mavenRepo urls: 'http://download.java.net/maven/2/'
        mavenRepo name: "Grails Repo", urls:
"http://repo.grails.org/grails/repo"
    }

    dependencies {
        classpath "org.grails:grails-gradle-plugin:1.1-SNAPSHOT"
    }
}

apply plugin: "grails"

version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
    flatDir dirs: "lib"
    mavenRepo name: "Grails Repo", urls: "http://repo.grails.org/grails/repo"
}

configurations {
    compile.exclude module: "commons-logging"

}

dependencies {
    compile "org.grails:grails-crud:${grailsVersion}",
            "org.grails:grails-dependencies:${grailsVersion}",
                        "org.grails:grails-resources:${grailsVersion}"

    runtime "org.slf4j:slf4j-log4j12:1.6.2",
            "com.h2database:h2:1.3.160",
            "net.sf.ehcache:ehcache-core:2.4.6",
  "org.grails:grails-plugin-logging:2.0.0.M2"
}

What is the best practice to manage a grails app with gradle? Do I
have to add dependencies to both BuildConfig.groovy AND build.gradle ?


Now I have a couple of issues:

* during build I have logging errors ( Log4j missing appenders and
SLF4J duplicate adapter) , even if the task runs OK. Now this create a
bit of noise since I have to check "false positives" from real errors

* gradle assemble task create the war as expected but grails-run-app
fail to run tomcat with the following error

| Running Grails application
| Error javax.servlet.ServletContext.getSessionCookieConfig()Ljavax/servlet/SessionCookieConfig;
java.lang.NoSuchMethodError:
javax.servlet.ServletContext.getSessionCookieConfig()Ljavax/servlet/SessionCookieConfig;
        at org.grails.plugins.tomcat.InlineExplodedTomcatServer.doStart(InlineExplodedTomcatServer.groovy:114)
        at org.grails.plugins.tomcat.TomcatServer.start(TomcatServer.groovy:102)
        at _GrailsRun$_run_closure5_closure12.doCall(_GrailsRun.groovy:175)
        at _GrailsRun$_run_closure5.doCall(_GrailsRun.groovy:152)
        at _GrailsRun.runInline(_GrailsRun.groovy:120)
        at _GrailsRun$_run_closure1.doCall(_GrailsRun.groovy:66)
        at RunApp$_run_closure1.doCall(RunApp.groovy:33)
        at org.grails.gradle.plugin.GrailsTask.executeCommand(GrailsTask.groovy:92)
        at org.gradle.api.internal.BeanDynamicObject.invokeMethod(BeanDynamicObject.java:158)
        at org.gradle.api.internal.CompositeDynamicObject.invokeMethod(CompositeDynamicObject.java:93)
        at org.gradle.util.ReflectionUtil.invoke(ReflectionUtil.groovy:23)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$2.execute(AnnotationProcessingTaskFactory.java:129)



Thanks


--
SammyRulez
http://www.sammyrulez.com
http://twitter.com/sammyrulez
http://www.linkedin.com/in/sammyrulez

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[tyconnell]

I blatantly stole your build script and it does work - I deployed (by hand) to a tomcat 7 instance and the grails home page appears.

I was able to get rid of the slf4j errors by adding a second exclude in the configurations closure:
compile.exclude module: "slf4j-log4j12"

There's probably a more idiomatic way of doing it, but It Works.

[::SammyRulez::]

Thanks

so there is no way to tell Grails to use Gradle for dependencies
resolution ? I DO HAVE to specify external dependencies in bod
build.grandle and BuildConfig.groovy ?



2012/2/9 tyconnell <[hidden email]>:

> I blatantly stole your build script and it does work - I deployed (by hand)
> to a tomcat 7 instance and the grails home page appears.
>
> I was able to get rid of the slf4j errors by adding a second exclude in the
> configurations closure:
> compile.exclude module: "slf4j-log4j12"
>
> There's probably a more idiomatic way of doing it, but It Works.
>
> --
> View this message in context: http://grails.1312388.n4.nabble.com/2-0-Building-Grails-app-with-Gradle-tp4373020p4374639.html
> Sent from the Grails - user mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe from this list, please visit:
>
>    http://xircles.codehaus.org/manage_email
>
>

--
SammyRulez
http://www.sammyrulez.com
http://twitter.com/sammyrulez
http://www.linkedin.com/in/sammyrulez

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[tyconnell]

Keeping in mind my limited understanding, I think Gradle "understands" Grails, but not the other way around.  

http://www.cacoethes.co.uk/blog/groovyandgrails/building-a-grails-project-with-gradle

That post is somewhat old (in internet terms), but seems like if properly configured, you can use gradle to do all things gradle and grails.

[benSmith]

i have also blatantly stole your build script  and yes i can get it to build my war and init my project but when i run  gradle grails-run-app i get a InvocationTargetException

| Error SLF4J: Class path contains multiple SLF4J bindings.
| Error SLF4J: Found binding in [jar:file:/Users/smithbn/.gradle/caches/artifacts-8/filestore/org.grails/grails-plugin-logging/2.0.0.M2/jar/88f330d212092f22042ecb8856d74288912b0317/grails-plugin-logging-2.0.0.M2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
| Error SLF4J: Found binding in [jar:file:/Users/smithbn/.gradle/caches/artifacts-8/filestore/org.grails/grails-plugin-log4j/2.0.0/jar/3f2e0e2a2d22c13442b0fe08a65b54ea11acc2bb/grails-plugin-log4j-2.0.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
| Error SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
| Error log4j:WARN No appenders could be found for logger (org.springframework.core.io.support.PathMatchingResourcePatternResolver).
| Error log4j:WARN Please initialize the log4j system properly.
| Error log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
| Packaging Grails application.....
| Error WARNING: No default container found, installing Tomcat..
| Plugin 'tomcat' with version '2.0.0' is already installed

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':grails-run-app'.
> java.lang.reflect.InvocationTargetException

@SammyRulez i am still getting the log4j warn even though i have your exclude in my configurations closure so not sure whats going on now

my build.gradle file:

grailsVersion = '2.0.0'

buildscript {
    repositories {
        mavenCentral()
        mavenRepo urls: 'http://snapshots.repository.codehaus.org'
        mavenRepo urls: 'http://download.java.net/maven/2/'
        mavenRepo name: "Grails Repo", urls: "http://repo.grails.org/grails/repo"
    }

    dependencies {
        classpath "org.grails:grails-gradle-plugin:1.1-SNAPSHOT"
    }
}

apply plugin: "grails"

version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
    flatDir dirs: "lib"
    mavenRepo name: "Grails Repo", urls: "http://repo.grails.org/grails/repo"
}

configurations {
    compile.exclude module: "commons-logging"
    compile.exclude module: "slf4j-log4j12"
}

dependencies {
    compile "org.grails:grails-crud:${grailsVersion}",
            "org.grails:grails-dependencies:${grailsVersion}",
            "org.grails:grails-resources:${grailsVersion}"

    runtime "org.slf4j:slf4j-log4j12:1.6.2",
            "com.h2database:h2:1.3.160",
            "net.sf.ehcache:ehcache-core:2.4.6",
            "org.grails:grails-plugin-logging:2.0.0.M2"
}