submodule support

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "Paper"]
+	path = Paper
+	url = https://github.com/PaperMC/Paper
+	branch = dev/1.17

build.gradle.kts

@@ -1,13 +1,15 @@
+import io.papermc.paperweight.util.Git
+
 plugins {
     java
     id("com.github.johnrengelman.shadow") version "7.0.0" apply false
-    id("io.papermc.paperweight.patcher") version "1.0.0-LOCAL-SNAPSHOT"
+    id("io.papermc.paperweight.patcher") version "1.0.0-SNAPSHOT"
 }
 
 group = "net.pl3x.purpur"
 version = providers.gradleProperty("projectVersion").forUseAtConfigurationTime().get()
 
-allprojects {
+subprojects {
     apply(plugin = "java")
 
     java {
@@ -15,9 +17,7 @@ allprojects {
             languageVersion.set(JavaLanguageVersion.of(16))
         }
     }
-}
 
-subprojects {
     tasks.withType<JavaCompile>().configureEach {
         options.encoding = "UTF-8"
         options.release.set(16)
@@ -25,7 +25,6 @@ subprojects {
 
     repositories {
         mavenCentral()
-        maven("https://repo1.maven.org/maven2/")
         maven("https://oss.sonatype.org/content/groups/public/")
         maven("https://papermc.io/repo/repository/maven-public/")
         maven("https://ci.emc.gs/nexus/content/groups/aikar/")
@@ -33,9 +32,7 @@ subprojects {
         maven("https://repo.md-5.net/content/repositories/releases/")
         maven("https://hub.spigotmc.org/nexus/content/groups/public/")
         maven("https://nexus.velocitypowered.com/repository/velocity-artifacts-snapshots/")
-        maven("https://oss.sonatype.org/content/repositories/snapshots/") {
-            name = "sonatype-oss-snapshots"
-        }
+        maven("https://oss.sonatype.org/content/repositories/snapshots/")
     }
 }
 
@@ -43,16 +40,38 @@ dependencies {
     implementation(gradleApi())
 }
 
+val paperDir = layout.projectDirectory.dir("Paper")
+val initSubmodules by tasks.registering {
+    outputs.upToDateWhen { false }
+    doLast {
+        paperDir.asFile.mkdirs()
+        Git(paperDir)("submodule", "update", "--init", "--recursive").executeOut()
+    }
+}
+
 paperweight {
     serverProject.set(project(":Purpur-Server"))
 
-    usePaperUpstream(providers.gradleProperty("paperRef")) {
-        withPaperPatcher {
-            apiPatchDir.set(file("patches/api"))
-            apiOutputDir.set(file("Purpur-API"))
+    upstreams {
+        register("paper") {
+            upstreamDataTask {
+                dependsOn(initSubmodules)
+                projectDir.set(paperDir)
+                workDir.set(layout.projectDirectory)
+            }
 
-            serverPatchDir.set(file("patches/server"))
-            serverOutputDir.set(file("Purpur-Server"))
+            patchTasks {
+                register("api") {
+                    sourceDir.set(paperDir.dir("Paper-API"))
+                    patchDir.set(layout.projectDirectory.dir("patches/api"))
+                    outputDir.set(layout.projectDirectory.dir("Purpur-API"))
+                }
+                register("server") {
+                    sourceDir.set(paperDir.dir("Paper-Server"))
+                    patchDir.set(layout.projectDirectory.dir("patches/server"))
+                    outputDir.set(layout.projectDirectory.dir("Purpur-Server"))
+                }
+            }
         }
     }
 }

gradle.properties

@@ -1,6 +1,5 @@
 projectVersion=1.17-R0.1-SNAPSHOT
 packageVersion=1_17_R1
-paperRef=dev/1.17
 
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xmx3G

settings.gradle.kts

@@ -2,7 +2,6 @@ pluginManagement {
     repositories {
         gradlePluginPortal()
         maven("https://wav.jfrog.io/artifactory/repo/")
-        mavenLocal()
     }
 }