Let Konsist checks the license header

Author: bmarty

tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistLicenseTest.kt

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2024 New Vector Ltd
+ *
+ * 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.
+ */
+
+package io.element.android.tests.konsist
+
+import com.lemonappdev.konsist.api.Konsist
+import com.lemonappdev.konsist.api.verify.assertTrue
+import org.junit.Test
+
+class KonsistLicenseTest {
+    private val publicLicense = """
+        /\*
+        (?:.*\n)* \* Copyright \(c\) 20\d\d New Vector Ltd
+        (?:.*\n)* \*
+         \* 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
+         \*
+         \* {5}https?://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\.
+         \*/
+        """.trimIndent().toRegex()
+
+    private val enterpriseLicense = """
+        /\*
+         \* © 20\d\d New Vector Limited, Element Software SARL, Element Software Inc\.,
+         \* and Element Software GmbH \(the "Element Group"\) only make this file available
+         \* under a proprietary license model\.
+         \*
+         \* Without a proprietary license with us, you cannot use this file\. The terms of
+         \* the proprietary license agreement between you and any member of the Element Group
+         \* shall always apply to your use of this file\. Unauthorised use, copying, distribution,
+         \* or modification of this file, via any medium, is strictly prohibited\.
+         \*
+         \* For details about the licensing terms, you must either visit our website or contact
+         \* a member of our sales team\.
+         \*/
+        """.trimIndent().toRegex()
+
+    @Test
+    fun `assert that FOSS files have the correct license header`() {
+        Konsist
+            .scopeFromProject()
+            .files
+            .filter {
+                it.path.contains("/enterprise/features").not() &&
+                    it.nameWithExtension != "locales.kt" &&
+                    it.name.startsWith("Template ").not()
+            }
+            .assertTrue {
+                publicLicense.containsMatchIn(it.text)
+            }
+    }
+
+    @Test
+    fun `assert that Enterprise files have the correct license header`() {
+        Konsist
+            .scopeFromProject()
+            .files
+            .filter {
+                it.path.contains("/enterprise/features")
+            }
+            .assertTrue {
+                enterpriseLicense.containsMatchIn(it.text)
+            }
+    }
+}

tools/detekt/detekt.yml

@@ -197,9 +197,7 @@ performance:
 # Note: all rules for `comments` are disabled by default, but I put them here to be aware of their existence
 comments:
   AbsentOrWrongFileLicense:
-    active: true
-    licenseTemplateFile: 'license.template'
-    licenseTemplateIsRegex: true
+    active: false
   CommentOverPrivateFunction:
     active: false
   CommentOverPrivateProperty: