move tasks to file

gradle/tasks.gradle

+apply plugin: "com.star-zero.gradle.githook"
+apply plugin: "com.github.spotbugs"
+apply plugin: "com.diffplug.gradle.spotless"
+
+tasks.withType(JavaCompile) {
+  options.encoding = "UTF-8"
+  options.compilerArgs.add("-parameters")
+}
+
+tasks.withType(JavaExec) {
+  jvmArgs('-noverify', '-XX:TieredStopAtLevel=1', '-Dcom.sun.management.jmxremote')
+}
+
+task nshmpLibArtifacts(type: Copy) {
+  from {
+    configurations.nshmp.collect { zipTree(it) }
+  }
+  into nshmpLib
+}
+
+/* SpotBugs */
+tasks.withType(com.github.spotbugs.snom.SpotBugsTask) {
+  dependsOn nshmpLibArtifacts
+  reports {
+    html {
+      enabled true
+      stylesheet = 'fancy-hist.xsl'
+    }
+  }
+}
+
+/* Spotless */
+tasks.withType(com.diffplug.gradle.spotless.SpotlessExtension) {
+  dependsOn nshmpLibArtifacts
+}
+
+/* Githook */
+tasks.withType(com.star_zero.gradle.githook.GithookExtension) {
+  dependsOn nshmpLibArtifacts
+}
+
+/* Run UpdateSwagger */
+task swagger(type: JavaExec) {
+  doFirst {
+    mkdir swaggerDir
+  }
+  classpath sourceSets.main.runtimeClasspath
+  main = "gov.usgs.earthquake.nshmp.netcdf.swagger.UpdateSwagger"
+}
+
+task swaggerClean(type: Delete) {
+  delete swaggerDir
+}
+
+task libsClean(type: Delete) {
+  delete libsDir
+}