On 15 Jan 2012, at 21:37, Adam Murdoch wrote:
On 15/01/2012, at 3:12 AM, Luke Daley wrote:
I would have expected this to work:
apply plugin: "java"
repositories {
mavenCentral()
}
dependencies {
compile 'junit:junit:4.9'
}
task doIt {
dependsOn configurations.compile
doFirst {
assert configurations.compile.state == Configuration.State.RESOLVED
}
}
Instead it fails because the configuration is not resolved when the
task executes.
Using dependsOn configurations.compile.buildDependencies does not
work either, same problem.
I also tried dependsOn configurations.compile.files, which does
trigger a resolve but then explodes because it tries to find a task
with a name matching the absolute path of each dependency file.
I stumbled upon this when answering a forum question that lead to me
writing and trying the following:
task unpack(type: Copy, dependsOn: configurations.compile) { task ->
into "sdks"
assert configurations.compile.state == Configuration.State.UNRESOLVED
configurations.compile.incoming.afterResolve { ResolvableDependencies
incoming ->
incoming.files.each { File file ->
if (file.name.endsWith(".zip")) {
from (zipTree(file)) {
into file.name - ".zip"
}
I don't think trying to do configuration in response to a resolve
event is a good approach to configuration - it doesn't describe the
dependency between the task and its configuration logic very well. I
think the solution to the above problem would be to use a (regular)
configuration task that executes before the unpack task:
task configureSdks {
dependsOn configurations.compile
doLast {
configurations.compile.each {
if (it.name.endsWith(".zip") {
unpackSdks.from(zipTree(it) { into it.name - ".zip" }
}
}
}
}
task unpackSdks(type: Copy, dependsOn: configureSdks)
Given that such logic is so common, we should add some convenience
methods to the DSL for this. We've discussed this a bunch of times on
this list.
That doesn't seem clearer to me, but I'm not used to the idea of
configuring tasks during the execution of another. Can you elaborate on
your objection to using the afterResolve hook?
--
Luke Daley
Principal Engineer, Gradleware
http://gradleware.com
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