gradle - call custom task before gradle repositories resolution takes place - gradle

Question

I'm using gradle-7.2 I want to call custom task to derive svn branch and then use the same in repository URLs, couldn't find a way to do that.
this is my custom task in build.gradle:
task svninfo {
println "***svninfo***"
doLast {
new ByteArrayOutputStream().withStream { os ->
def result = exec {
executable = 'svn'
args = ['info']
standardOutput = os
}
def outputAsString = os.toString()
println "outputAsString #: $outputAsString"
def matchSvnBranch = outputAsString =~ /URL:.*\/branches\/(.*)\/deployready\/.*/
//def matchLastChangedRev = outputAsString =~ /Last Changed Rev: (\d+)/
def branchName=${matchSvnBranch[0][1]}
println "svn branch #: ${matchSvnBranch[0][1]}"
println "svn.branch #: ${branchName}"
ext.branch = branchName
}
}
}
repositories {
//svninfo() --- not working, getting error
maven {
url "myurl-$branch"
allowInsecureProtocol = true
}
}
Update:
As per the comment, i changed to doFirst {}, but still getting the error. Im not able to call svninfo task inside repositories closure. getting below error:
Could not find method svninfo() for arguments [] on repository container of type org.gradle.api.internal.artifacts.dsl.DefaultRepositoryHandler.
Please guide me on how to call svninfo() task before repositories evolution, so that i can use the variable branch in maven Url..

Answer 1

Okay, after couple of trial and errors, finally this worked:
def svninfo() {
println "***svninfo***"
new ByteArrayOutputStream().withStream { os ->
def result = exec {
executable = 'svn'
args = ['info']
standardOutput = os
}
def outputAsString = os.toString()
println "outputAsString #: $outputAsString"
def matchSvnBranch = outputAsString =~ /URL:.*\/branches\/(.*)\/deployready\/.*/
def branchName=matchSvnBranch[0][1]
println "svn branch #: ${matchSvnBranch[0][1]}"
println "svn.branch #: ${branchName}"
ext.branch = branchName
}
}
svninfo()
repositories {
maven {
url "myurl-$branch"
allowInsecureProtocol = true
}
}
Not sure why defining as task was not working. Now i'm trying to move this logic to init script as this is going to be common logic for modules.