work around wire plugin issue

Author: laurit

disk-buffering/build.gradle.kts

@@ -1,4 +1,5 @@
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import de.undercouch.gradle.tasks.download.Download
 import ru.vyarus.gradle.plugin.animalsniffer.AnimalSniffer
 
 plugins {
@@ -7,7 +8,8 @@ plugins {
   id("com.github.johnrengelman.shadow")
   id("me.champeau.jmh") version "0.7.3"
   id("ru.vyarus.animalsniffer") version "2.0.0"
-  id("com.squareup.wire") version "5.3.0"
+  id("com.squareup.wire") version "5.3.1"
+  id("de.undercouch.download")
 }
 
 description = "Exporter implementations that store signals on disk"
@@ -49,11 +51,14 @@ jmh {
   timeUnit.set("ms")
 }
 
+val protoVersion = "1.5.0"
+val protoArchive = layout.buildDirectory.file("archives/opentelemetry-proto-$protoVersion.zip").get().asFile
+
 wire {
   java {}
 
   sourcePath {
-    srcJar("io.opentelemetry.proto:opentelemetry-proto:1.5.0-alpha")
+    srcDir(layout.buildDirectory.dir("protos/opentelemetry-proto-$protoVersion"))
   }
 
   root(
@@ -63,6 +68,26 @@ wire {
   )
 }
 
+afterEvaluate {
+  tasks {
+    val downloadProtoArchive by registering(Download::class) {
+      onlyIf { !protoArchive.exists() }
+      src("https://github.com/open-telemetry/opentelemetry-proto/archive/v$protoVersion.zip")
+      dest(protoArchive)
+    }
+
+    val unzipProtoArchive by registering(Copy::class) {
+      dependsOn(downloadProtoArchive)
+      from(zipTree(protoArchive))
+      into(layout.buildDirectory.dir("protos"))
+    }
+
+    named("generateMainProtos") {
+      dependsOn(unzipProtoArchive)
+    }
+  }
+}
+
 tasks.named<ShadowJar>("shadowJar") {
   archiveClassifier.set("")
   configurations = emptyList() // To avoid embedding any dependencies as we only need to rename some local packages.

settings.gradle.kts

@@ -3,6 +3,7 @@ pluginManagement {
     id("com.github.johnrengelman.shadow") version "8.1.1"
     id("io.github.gradle-nexus.publish-plugin") version "2.0.0"
     id("com.gradle.develocity") version "3.19.2"
+    id("de.undercouch.download") version "5.6.0"
   }
 }