/*
 * Copyright ConsenSys AG.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

sourceSets {
  test {
    resources {
      include '*Tests/**/*.json'
    }
  }
}

configurations { testOutput }

dependencies { testOutput sourceSets.test.output }

task ('validateReferenceTestSubmodule') {
  description = "Checks that the reference tests submodule is not accidentially changed"
  doLast {
    def expectedHash = 'b8abaebf5949877ead03e8f74ac03c0ede41d5f7'
    def result = new ByteArrayOutputStream()
    try {
      exec {
        commandLine 'git', 'submodule'
        standardOutput = result
        errorOutput = result
      }
    } catch (Exception ignore) {
      // Ignore it.  We want to fail in a friendly fashion if they don't have git installed.
      // The CI servers have git and that is the only critical place for this failure
      expectedHash = ''
    }
    if (!result.toString().contains(expectedHash)) {
      throw new GradleException("""For the Ethereum Reference Tests the git commit did not match what was expected.

If this is a deliberate change where you are updating the reference tests 
then update "expectedHash" in `ethereum/referencetests/build.gradle` as the 
commit hash for this task.
Expected hash   :  ${expectedHash}
Full git output : ${result}

If this is accidental you can correct the reference test versions with the 
following commands:
    pushd ethereum/referencetests/src/test/resources
    git checkout ${expectedHash}
    cd ..
    git add resources
    popd""")
    }
  }
}
processResources.dependsOn('validateReferenceTestSubmodule')