Depend on sourcesJar task if present (#78)

Author: JoseLion

plugin/src/e2e/groovy/com/github/joselion/strictnullcheck/StrictNullCheckPluginE2E.groovy

@@ -15,8 +15,8 @@ class StrictNullCheckPluginE2E extends Specification {
       buildGradle.bytes = []
       buildGradle << '''\
         |plugins {
-        |  id('java')
-        |  id('com.github.joselion.strict-null-check')
+        |  id 'java'
+        |  id 'com.github.joselion.strict-null-check'
         |}
         |
         |repositories {
@@ -46,8 +46,8 @@ class StrictNullCheckPluginE2E extends Specification {
       buildGradle.bytes = []
       buildGradle << '''\
         |plugins {
-        |  id('java')
-        |  id('com.github.joselion.strict-null-check')
+        |  id 'java'
+        |  id 'com.github.joselion.strict-null-check'
         |}
         |
         |repositories {
@@ -91,8 +91,8 @@ class StrictNullCheckPluginE2E extends Specification {
       buildGradle.bytes = []
       buildGradle << '''\
         |plugins {
-        |  id('java')
-        |  id('com.github.joselion.strict-null-check')
+        |  id 'java'
+        |  id 'com.github.joselion.strict-null-check'
         |}
         |
         |repositories {
@@ -137,8 +137,8 @@ class StrictNullCheckPluginE2E extends Specification {
       buildGradle.bytes = []
       buildGradle << '''\
         |plugins {
-        |  id('java')
-        |  id('com.github.joselion.strict-null-check')
+        |  id 'java'
+        |  id 'com.github.joselion.strict-null-check'
         |}
         |
         |repositories {

plugin/src/main/groovy/com/github/joselion/strictnullcheck/StrictNullCheckPlugin.groovy

@@ -27,7 +27,9 @@ class StrictNullCheckPlugin implements Plugin<Project> {
         packageJavadoc = project.strictNullCheck.packageJavadoc
       }
 
-      project.tasks.compileJava.dependsOn(project.tasks.generatePackageInfo)
+      ['compileJava', 'sourcesJar'].forEach {
+        project.tasks.findByName(it)?.dependsOn(project.tasks.generatePackageInfo)
+      }
 
       project.sourceSets.main.java {
         srcDir("${project.strictNullCheck.generatedDir.get()}/java/main")

plugin/src/test/groovy/com/github/joselion/strictnullcheck/StrictNullCheckPluginTest.groovy

@@ -36,20 +36,23 @@ class StrictNullCheckPluginTest extends Specification {
       project.tasks.findByName('generatePackageInfo') != null
   }
 
-  def 'the compileJava task depends on generatePackageInfo task'() {
+  def 'the [compileJava, sourcesJar] tasks depend on the generatePackageInfo task'() {
     given:
       def project = ProjectBuilder.builder().build()
 
     when:
       project.plugins.apply('java')
+      project.java.withSourcesJar()
       project.plugins.apply('com.github.joselion.strict-null-check')
 
     then:
       def generateTask = project.tasks.findByName('generatePackageInfo')
       def compileJavaTask = project.tasks.getByName('compileJava')
+      def sourcesJarTask = project.tasks.getByName('sourcesJar')
 
       generateTask != null
       compileJavaTask != null
       compileJavaTask.getDependsOn().contains(generateTask) == true
+      sourcesJarTask.getDependsOn().contains(generateTask) == true
   }
 }