set up convention plugins

- tidy up build scripts to use convention plugins
- use centralised repo definition
- tidy up some of the build config

buildSrc/src/main/kotlin/buildsrc/conventions/sonarqube.gradle.kts

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Copyright 2022-2023 Erik C. Thauvin (erik@thauvin.net)
+ *
+ * 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 buildsrc.conventions
+
+plugins {
+  id("org.sonarqube")
+}
+
+sonarqube {
+  properties {
+    property("sonar.projectName", rootProject.name)
+    property("sonar.projectKey", "ethauvin_${rootProject.name}")
+    property("sonar.organization", "ethauvin-github")
+    property("sonar.host.url", "https://sonarcloud.io")
+    property("sonar.sourceEncoding", "UTF-8")
+    property("sonar.coverage.jacoco.xmlReportPaths", "${project.buildDir}/reports/kover/xml/report.xml")
+  }
+}