anschoewe wrote:
Hello,
I'm a newbie when it comes to bundling wars. I figured Gradle could help
with this. Oh, I'm also a newbie Gradle user.
I have a WAR project that depends on a number of other projects -the jars
produced by the sub-projects. This means that my WAR project has a compile
time dependency on my sub projects. Obviously, when I create my WAR, it
will need to bundle the runtime dependencies of my sub projects in the WAR.
This is where I'm having a problem. All of the runtime dependencies of the
sub-projects live in the 'lib' folder of the each sub-project. I noticed
that Gradle only looks in the lib folder (repository) of the WAR when trying
to find these run-time dependencies. What's the best way to solve this
problem?
- Is it best practice for the WAR project to include all of the run-time
dependencies of the sub-projects in its own 'lib' folder? This doesn't feel
right
I agree. You shouldn't have to do this.
- Is it possible to have Gradle look in the 'lib' folder of each sub-project
for the appropriate transitive jars? If so, is there an automatic mechanism
for this? If not, is there a generic way to refer to the repository
location of my sub-projects?
There's no automatic mechanism for this, though it would be nice to add
one. Could you add a JIRA issue for this?
It is, however, possible to script the behaviour you want. Here's an
example snippet of code which you could add to your root build file. For
each project, this code will add the repositories of each project it
depends on. So, for your build, it will add a 'Sub Project/lib'
repository to the 'Web Application' project.
allprojects {
afterEvaluate { project ->
project.configurations.each { config ->
config.getDependencies(ProjectDependency.class).each {dep ->
dep.dependencyProject.repositories.each {repos ->
if (!project.repositories.all.contains(repos)) {
project.repositories.add(repos)
}
}
}
}
}
}
An automatic solution would do pretty much the same thing, so when we
add it, you can just remove the above snippet.
I'm not using remote repositories for any of these projects. It's all
stored locally. I tried adding 'dependsOnChildren()' in my ":Web
Application" project, but it didn't help.
Thanks for any help you all might provide. I'm really enjoying Gradle so
far.
Andrew
-------------------------
Here's an example of my configuration...
Folders:
/Projects
/Sub Project
/lib
/Web Application
/lib
settings.gradle
build.gradle
In settings.gradle: include 'Sub Project', 'Web Application'
In build.gradle:
subprojects {
usePlugin('java')
version = '1.0'
sourceCompatibility = 1.6
targetCompatiblity = 1.6
}
project(":Sub Project") {
repositories {
flatDir name: 'localRepositories', dirs: ["${projectDir}/lib"]
}
dependencies {
compile group: 'junit', name: 'junit', version: '3.8.2'
runtime name: 'dbunit', version: '2.0'
}
}
project(":Web Project") {
usePlugin('war')
repositories {
flatDir name: 'localRepositories', dirs:
["${projectDir}/WEB-INF/lib"]
}
dependencies {
compile project(":Sub Project")
}
}
--------------------------
It's only looking in "${projectDir}/WEB-INF/lib" for the transitive runtime
jars when bundling the WAR. In this example, the runtime jar dbunit only
lives in '/Projects/Sub Project/lib'
--
Adam Murdoch
Gradle Developer
http://www.gradle.org
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