add build logic back into examples so CI passes

Author: skovati

procedural/examples/foo-procedures/build.gradle

@@ -1,6 +1,7 @@
 plugins {
   id 'java'
-  id "gov.nasa.ammos.aerie.procedural.plugin" version "0.0.1"
+  // id "gov.nasa.ammos.aerie.procedural.plugin" version "0.0.1"
+  id 'com.gradleup.shadow' version '8.3.3' // delete once ^ is published
 }
 
 java {
@@ -28,3 +29,68 @@ dependencies {
 test {
   useJUnitPlatform()
 }
+
+// delete below once
+
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+
+tasks.register('buildAllSchedulingProcedureJars') {
+  group = 'SchedulingProcedureJars'
+
+  dependsOn "generateSchedulingProcedureJarTasks"
+  dependsOn {
+    tasks.findAll { task -> task.name.startsWith('buildSchedulingProcedureJar_') }
+  }
+}
+
+tasks.create("generateSchedulingProcedureJarTasks") {
+  group = 'SchedulingProcedureJars'
+
+  final proceduresDir = findFirstMatchingBuildDir("generated/procedures")
+
+  if (proceduresDir == null) {
+    println "No generated procedures folder found"
+    return
+  }
+  println "Generating jar tasks for the following procedures directory: ${proceduresDir}"
+
+  final files = file(proceduresDir).listFiles()
+  if (files.length == 0) {
+    println "No procedures available within folder ${proceduresDir}"
+    return
+  }
+
+  files.toList().each { file ->
+    final nameWithoutExtension = file.name.replace(".java", "")
+    final taskName = "buildSchedulingProcedureJar_${nameWithoutExtension}"
+
+    println "Generating ${taskName} task, which will build ${nameWithoutExtension}.jar"
+
+    tasks.create(taskName, ShadowJar) {
+      group = 'SchedulingProcedureJars'
+      configurations = [project.configurations.compileClasspath]
+      from sourceSets.main.output
+      archiveBaseName = "" // clear
+      archiveClassifier.set(nameWithoutExtension) // set output jar name
+      manifest {
+        attributes 'Main-Class': getMainClassFromGeneratedFile(file)
+      }
+      minimize()
+    }  }
+}
+
+private String findFirstMatchingBuildDir(String pattern) {
+  String found = null
+  final generatedDir = file("build/generated/sources")
+  generatedDir.mkdirs()
+  generatedDir.eachDirRecurse { dir -> if (dir.path.contains(pattern)) found = dir.path }
+  return found
+}
+
+private static String getMainClassFromGeneratedFile(File file) {
+  final fileString = file.toString()
+  final prefix = "build/generated/sources/annotationProcessor/java/main/"
+  final index = fileString.indexOf(prefix) + prefix.length()
+  final trimmed = fileString.substring(index).replace(".java", "")
+  return trimmed.replace("/", ".")
+}