Exec task not recognized

Help/Discuss
1

I am trying to run a shell script from my gradle build but it utterly fails to compile/run

import org.gradle.api.tasks.Exec
    ...
task generateProto(type: Exec)  {
      workingDir "${projectDir}"
      commandLine = './generate_protobuf.sh'
}

build.dependsOn generateProto

gives me the following error

Could not determine the dependencies of task ':generateProto'.
> Could not find method workingDir() for arguments [...

According to the latest documentation this should work. Also my IDE (IntelliJ) is marking the calls to workingDir and commandLine as not found. I am running the build from commandLine, just to be sure it is not a IDE bug.

I am on Gradle 4.7

2

Your script works as expected for me on Gradle 4.7. The only modification I made was to replace the ... with applying the the base plugin so that the build task referenced in the last line exists. There’s not enough information here to troubleshoot.

3

Something must be off with my installation then. I’ve installed Gradle via SDKMAN.

This is my full build

import org.gradle.api.tasks.Exec

plugins {
  id "scala"
}

ext {
  versionScala = '2.12.5'
  versionScalaTest = '3.0.5'
  versionScalaLogging = '3.5.0'
  versionAkka = '2.5.12'
  versionLogback = '1.1.8'
  versionLevelDb = '0.10'
}

version = '0.1.0'

repositories {
  mavenCentral()
}

sourceSets.main.scala.srcDirs += 'build/generated/source/proto/main/scala'

dependencies {
  compile group: 'com.typesafe.akka', name: 'akka-http_2.12', version: '10.1.1'
  compile group: 'com.typesafe.akka', name: 'akka-stream_2.12', version: versionAkka
  compile group: 'com.typesafe.akka', name: 'akka-persistence_2.12', version: versionAkka
  compile group: 'org.fusesource.leveldbjni', name: 'leveldbjni-all', version: '1.8'
  compile group: 'com.google.protobuf', name: 'protobuf-java', version: '3.1.0'
  compile group: 'com.thesamet.scalapb', name: 'scalapb-runtime_2.12', version: '0.7.2'
  testCompile group: 'junit', name: 'junit', version: '4.+'
  testCompile group: 'org.scalatest', name: 'scalatest_2.12', version: versionScalaTest
  testCompile group: 'com.typesafe.akka', name: 'akka-testkit_2.12', version: versionAkka
  testCompile group: 'com.typesafe.akka', name: 'akka-http-testkit_2.12', version: '10.1.1'
  testCompile "org.specs2:specs2-core_2.11:4.0.3"
}

task preBuild {
  new File("build/generated/source/proto/main/scala").mkdirs()
}

task generateProto(type: Exec) dependsOn(preBuild)  {
  workingDir "${projectDir}"
  commandLine = './generate_protobuf.sh'
}

build.dependsOn generateProto
4

You do actually have a problem with your buildscript that wasn’t shown in the original post:

The dependsOn(preBuild) needs to be inside the parenthesis, using the map notation:

task generateProto(type: Exec, dependsOn: preBuild)  {
    workingDir "${projectDir}"
    commandLine = './generate_protobuf.sh'
}

OR inside the closure:

task generateProto(type: Exec) {
    dependsOn(preBuild)
    workingDir "${projectDir}"
    commandLine = './generate_protobuf.sh'
}
1 Like
5

doh!

Well, the message was kind of misleading. Thank you very much