build - Apply spotless license header checks to solidity sources (#7046)

* build - Apply spotless license header checks to solidity sources

---------

Signed-off-by: Usman Saleem <usman@usmans.info>

acceptance-tests/tests/contracts/RemoteSimpleStorage.sol

@@ -1,5 +1,5 @@
 /*
- * Copyright contributors to Hyperledger Besu
+ * Copyright contributors to Hyperledger Besu.
  *
  * 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

acceptance-tests/tests/contracts/TestDepth.sol

@@ -1,5 +1,5 @@
 /*
- * Copyright Hyperledger Besu Contributors.
+ * Copyright contributors to Hyperledger Besu.
  *
  * 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

acceptance-tests/tests/simple-permissioning-smart-contract/contracts/Migrations.sol

@@ -12,7 +12,6 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
-
 pragma solidity ^0.5.0;
 
 contract Migrations {

acceptance-tests/tests/simple-permissioning-smart-contract/contracts/SimpleAccountPermissioning.sol

@@ -1,3 +1,17 @@
+/*
+ * Copyright contributors to Hyperledger Besu.
+ *
+ * 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
+ */
 pragma solidity >=0.4.0 <0.6.0;
 // THIS CONTRACT IS FOR TESTING PURPOSES ONLY
 // DO NOT USE THIS CONTRACT IN PRODUCTION APPLICATIONS

acceptance-tests/tests/simple-permissioning-smart-contract/contracts/SimpleNodePermissioning.sol

@@ -1,3 +1,17 @@
+/*
+ * Copyright contributors to Hyperledger Besu.
+ *
+ * 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
+ */
 pragma solidity >=0.4.0 <0.6.0;
 // THIS CONTRACT IS FOR TESTING PURPOSES ONLY
 // DO NOT USE THIS CONTRACT IN PRODUCTION APPLICATIONS

acceptance-tests/tests/simple-permissioning-smart-contract/contracts/SimpleNodePermissioningV2.sol

@@ -1,3 +1,17 @@
+/*
+ * Copyright contributors to Hyperledger Besu.
+ *
+ * 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
+ */
 pragma solidity >=0.4.0 <0.6.0;
 // THIS CONTRACT IS FOR TESTING PURPOSES ONLY
 // DO NOT USE THIS CONTRACT IN PRODUCTION APPLICATIONS

build.gradle

@@ -220,7 +220,16 @@ allprojects {
     }
     // Below this line are currently only license header tasks
     format 'bash', { target '**/*.sh' }
-    format 'sol', { target '**/*.sol' }
+    format 'Solidity', {
+      target '**/*.sol'
+      targetExclude '**/src/reference-test/**', '**/src/main/generated/**', '**/src/test/generated/**', '**/src/jmh/generated/**'
+      trimTrailingWhitespace()
+      endWithNewline()
+
+      licenseHeaderFile("${rootDir}/gradle/spotless/java.former.license","^pragma solidity.+?").named("former").onlyIfContentMatches("^/\\*\\r?\\n.*Copyright ConsenSys AG\\.")
+      licenseHeaderFile("${rootDir}/gradle/spotless/java.former.date.license","^pragma solidity.+?").named("former.date").onlyIfContentMatches("^/\\*\\r?\\n.* Copyright \\d{4} ConsenSys AG\\.")
+      licenseHeaderFile("${rootDir}/gradle/spotless/java.current.license","^pragma solidity.+?").named("current").onlyIfContentMatches("^(?!/\\*\\r?\\n \\*.*ConsenSys AG\\.)")
+    }
   }
 
   tasks.withType(JavaCompile).configureEach {