Use SPDX license header.

dev/checkstyle/checkstyle.xml

@@ -33,7 +33,6 @@
     <!-- File must start with the C Thing copyright header -->
     <module name="RegexpHeader">
         <property name="headerFile" value="${config_loc}/header.txt"/>
-        <property name="multiLines" value="3"/>
     </module>
 
     <!-- Flag IDE generated comments -->

dev/checkstyle/header.txt

@@ -1,14 +1,3 @@
 ^/\*$
 ^ \* Copyright [\d]{4}((,[\s]*[\d]{4})*|(-[\d]{4})?) C Thing Software$
-^ \*$
-^ \* 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$

src/main/java/org/cthing/gradle/plugins/locc/CountsCache.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;
@@ -31,6 +20,7 @@
  * Maintains a cache of various counts requested by reports. This avoids each report calculating the same counts.
  * For example, all reports need the total counts, so it is inefficient for each report to calculate it.
  */
+@SuppressWarnings("AssignmentOrReturnOfFieldWithMutableType")
 public class CountsCache {
 
     private final Map<Path, Map<Language, Counts>> pathCounts;

src/main/java/org/cthing/gradle/plugins/locc/LoccExtension.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;

src/main/java/org/cthing/gradle/plugins/locc/LoccPlugin.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;

src/main/java/org/cthing/gradle/plugins/locc/LoccReports.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;
@@ -104,6 +93,7 @@ public LoccReport getText() {
     }
 
     @Override
+    @SuppressWarnings("AssignmentOrReturnOfFieldWithMutableType")
     public NamedDomainObjectSet<LoccReport> getEnabled() {
         return this.enabled;
     }

src/main/java/org/cthing/gradle/plugins/locc/LoccTask.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;
@@ -44,6 +33,7 @@
 /**
  * Performs the work of counting the project's code file.
  */
+@SuppressWarnings("AssignmentOrReturnOfFieldWithMutableType")
 public class LoccTask extends SourceTask implements Reporting<LoccReports> {
 
     private final Property<Boolean> countDocStrings;

src/main/java/org/cthing/gradle/plugins/locc/package-info.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 @PackageNonnullByDefault

src/main/java/org/cthing/gradle/plugins/locc/reports/AbstractLoccReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/CsvReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/HtmlReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/JsonReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/LoccReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/TextReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/XmlReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/YamlReport.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc.reports;

src/main/java/org/cthing/gradle/plugins/locc/reports/package-info.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 @PackageNonnullByDefault

src/test/java/org/cthing/gradle/plugins/locc/CountsCacheTest.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;

src/test/java/org/cthing/gradle/plugins/locc/PluginApplyTest.java

@@ -1,17 +1,6 @@
 /*
  * Copyright 2024 C Thing Software
- *
- * 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
  */
 
 package org.cthing.gradle.plugins.locc;