Gradle: add source dirs vs replace source dirs

http://stackoverflow.com/questions/10570795/can-gradle-handle-builds-for-legacy-projects-without-having-to-restructure-direc?rq=1

Gradle uses convention over configuration which allows you to provide minimal information to build your project if you follow the standard project layout. That said everything is still configurable using a declarative style: sourceSets { main { java { srcDir 'src/java' } resources { srcDir 'src/resources' } } } Because you have a real programming language you can do almost anything.
Note that this adds source directories rather than replacing them. The syntax for replacing is srcDirs = ['src/java'] and srcDirs = ['src/resources'].

Gradle Init script vs Build script

On 7/07/10 7:06 AM, Rene Groeschke wrote:
> hi there,
> I would like to apply the eclipse plugin on demand via init script
> while updating my eclipse classpath.
> Is there a way to get this working and avoid the UnsupportedOperation
> exception I got while trying " apply plugin'eclipse' " ?

Init scripts delegate to a Gradle instance, rather than a Project
instance as the build scripts do. And so, when you do apply plugin:
'eclipse', you're trying to apply a plugin designed to work with a
Project instance, to a Gradle instance. Of course, the error message
should tell you this (and what to do about it, too, I guess).

At the moment, it's a bit awkward to apply a project plugin from an init
script. You could do something like:

addListener(new ApplyPluginListener())

class ApplyPluginListener extends BuildAdapter {
   public void projectsEvaluated(Gradle gradle) {
       gradle.rootProject.allprojects { apply plugin: 'eclipse' }
   }
} 

Ideally, the init script would offer something like an allprojects { }
method, to make this kind of thing simpler.

Reference: http://gradle.1045684.n5.nabble.com/apply-plugin-from-init-script-td1433375.html

Gradle tips

// File: build.gradle
usePlugin 'java'
defaultTasks 'clean', 'build' // Run tasks clean and build if no task is specified.

Reference: http://mrhaki.blogspot.com/2009/11/gradle-goodness-setting-default-tasks.html

How to build mrm.jar using Gradle

apply plugin: 'java'
apply plugin: 'idea'

sourceCompatibility = 1.5
// version = '1.0'
jar.baseName = 'mrm'
gems_common_lib='../apps/build/ext/components/bndl_gems/build/gems_common/build/libs'

buildDate = new Date()
changes = 'Removed the usage of gems_common'

defaultTasks 'clean', 'build'

sourceSets {
    main {
        java {
            srcDir 'src'
        }
        resources {
            srcDir 'src/resources'
        }
    }
}

repositories {
    mavenCentral()
}

dependencies {
    compile files("${gems_common_lib}/gems_common.jar")
    testCompile group: 'junit', name: 'junit', version: '4.+'
}

jar {
    manifest {
        attributes  'Manifest-Version': 1.0,
                    'Created-By': 'David Chang',
                    'Created-Date': buildDate,
                    'Change-Log': changes
    }
}

How to build QuickBinder using Gradle

// build.gradle
apply plugin: 'java'
apply plugin: 'idea'

sourceCompatibility = 1.5
// version = '1.0'
jar.baseName = 'QuickBinder-ss'

// QuickBinder variables
qbVersion = 1.1
qbBuildDate = new Date()
qbChanges = 'Removed splash screen'

defaultTasks 'clean', 'build'

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.+'
}

jar {
    manifest {
        attributes  'Manifest-Version': 1.0,
                    'Created-By': 'David Chang',
                    'Created-Date': qbBuildDate,
                    'QuickBinder-Version': qbVersion,
                    'QuickBinder-Change-Log': qbChanges,
                    'Main-Class': 'com.rci.edge.quickbinder.impl.QuickBinder'
    }

    from sourceSets.main.classes
    exclude('com/rci/edge/quickbinder/logger/QuickSplashscreen*')
}