add mapping layering

src/main/kotlin/dev/frogmc/phytotelma/Constants.kt

@@ -12,5 +12,4 @@ object Constants {
     const val GEN_RUN_CONFIGS_TASK = "genRunConfigs"
     const val RUN_CLIENT_TASK = "runClient"
     const val RUNT_SERVER_TASK = "runServer"
-    const val DEV_NAMESPACE = "named"
 }

src/main/kotlin/dev/frogmc/phytotelma/ext/MinecraftConfiguration.kt

@@ -1,7 +1,9 @@
 package dev.frogmc.phytotelma.ext
 
 import dev.frogmc.phytotelma.PhytotelmaPlugin
+import dev.frogmc.phytotelma.mappings.filterClasses
 import dev.frogmc.phytotelma.mappings.renameDstNamespace
+import dev.frogmc.phytotelma.mappings.renameNamespaces
 import dev.frogmc.thyroxine.api.data.MappingBundle
 import dev.frogmc.thyroxine.parser.tiny.TinyV2Parser
 import dev.frogmc.thyroxine.provider.MojmapProvider
@@ -57,6 +59,27 @@ abstract class MinecraftConfiguration @Inject constructor(
         }
     }
 
+    fun parchment(action: Action<ParchmentConfiguration>): Provider<MappingBundle> {
+        return project.provider {
+            val conf = objects.newInstance(ParchmentConfiguration::class.java)
+            conf.gameVersion = version
+            action.execute(conf)
+            val cacheDir = PhytotelmaPlugin.globalCacheDir
+
+            if (conf.version == null) {
+                conf.version = ParchmentProvider.findForMinecraftVersion(conf.gameVersion)
+            }
+
+            mappingsName = "parchment(${conf.gameVersion}, ${conf.version})"
+            targetNamespace = "parchment"
+
+            return@provider ParchmentProvider.getParchment(
+                version,
+                cacheDir.resolve("org/parchmentmc/parchment/${conf.gameVersion}/${conf.version}")
+            ).renameNamespaces("mojmap", "parchment")
+        }
+    }
+
     fun mojmap(): Provider<MappingBundle> {
         return project.provider {
             val cacheDir = PhytotelmaPlugin.globalCacheDir
@@ -76,13 +99,32 @@ abstract class MinecraftConfiguration @Inject constructor(
             if (conf.version == null) {
                 error("No version provided for quilt mappings!")
             }
-            mappingsName = "quilt(${conf.version})"
-            targetNamespace = "quilt"
+            mappingsName = "quilt-mappings(${conf.version})"
+            targetNamespace = "quilt-mappings"
             // Use qm via intermediary because hashed publications are broken
             return@provider twoStepMappings(
                 "net.fabricmc:intermediary:$version:v2",
                 "org.quiltmc:quilt-mappings:${conf.version}:intermediary-v2"
-            ).renameDstNamespace(targetNamespace)
+            ).filterClasses { !it.startsWith("net/minecraft/unmapped") }
+                .flatten(true).renameDstNamespace(targetNamespace)
+        }
+    }
+
+    fun yarn(action: Action<VersionConfiguration>): Provider<MappingBundle> {
+        return project.provider {
+            val conf = objects.newInstance(VersionConfiguration::class.java)
+            action.execute(conf)
+            if (conf.version == null) {
+                error("No version provided for yarn!")
+            }
+            mappingsName = "yarn(${conf.version})"
+            targetNamespace = "yarn"
+            // Use qm via intermediary because hashed publications are broken
+            return@provider twoStepMappings(
+                "net.fabricmc:intermediary:$version:v2",
+                "net.fabricmc:yarn:${conf.version}:v2"
+            ).filterClasses { !it.startsWith("net/minecraft/class_") }
+                .flatten(true).renameDstNamespace(targetNamespace)
         }
     }
 
@@ -127,6 +169,41 @@ abstract class MinecraftConfiguration @Inject constructor(
         }
     }
 
+    fun layer(action: Action<LayerConfiguration>): Provider<MappingBundle> {
+        return project.provider {
+            val conf = objects.newInstance(LayerConfiguration::class.java)
+            action.execute(conf)
+
+            var back = MappingBundle()
+            var name = "layer["
+
+            val layers = conf.layers.mapIndexed {index, provider ->
+                val bundle = provider.get().flatten(true)
+                if (index == 0) {
+                    name+=mappingsName
+                    back.insert(bundle)
+                    return@mapIndexed bundle
+                }
+                name+=", $mappingsName"
+
+                back = back.flatten(false)
+                val prevDst = back.data[0].dstNamespace
+                val dst = bundle.data[0].dstNamespace
+                val remapped = MappingBundle.merge(bundle.reverse(), back)
+                    .flatten(prevDst, dst)
+                    .insert(back.docsForNamespace(dst))
+
+                back.insert(remapped)
+                return@mapIndexed remapped
+            }
+            mappingsName = "$name]"
+            val result = MappingBundle.merge(*layers.toTypedArray())
+                .flatten("official", layers.last().dstNamespaces()[0])
+            targetNamespace = result.data[0].dstNamespace
+            return@provider result
+        }
+    }
+
     private fun twoStepMappings(intermediary: String, mappings: String): MappingBundle {
         return MappingBundle.merge(tinyMappings(intermediary), tinyMappings(mappings))
     }
@@ -163,7 +240,7 @@ abstract class MinecraftConfiguration @Inject constructor(
     }
 
     abstract class LayerConfiguration {
-        internal val layers = mutableListOf<Provider<MappingBundle>>()
+        /*internal*/ val layers = mutableListOf<Provider<MappingBundle>>()
         fun add(mappings: Provider<MappingBundle>): LayerConfiguration {
             layers.add(mappings)
             return this

src/main/kotlin/dev/frogmc/phytotelma/ext/PhytotelmaGradleExtensionImpl.kt

@@ -62,7 +62,7 @@ abstract class PhytotelmaGradleExtensionImpl @Inject constructor(
                 println("Preparing Parchment...")
                 val javadocs = ProjectStorage.get(project).mappings!!
                 options[IFabricJavadocProvider.PROPERTY_NAME] =
-                    FrogJavadocProvider(javadocs.docsForNamespace(Constants.DEV_NAMESPACE))
+                    FrogJavadocProvider(javadocs.get(ProjectStorage.get(project).targetNamespace))
 
                 println("Decompiling...")
                 val logger = PrintStreamLogger(PrintStream(System.out))

src/main/kotlin/dev/frogmc/phytotelma/mappings/Mappings.kt

@@ -4,10 +4,9 @@ import dev.frogmc.thyroxine.api.data.DocumentationData
 import dev.frogmc.thyroxine.api.data.MappingBundle
 import dev.frogmc.thyroxine.api.data.MappingData
 
-fun MappingBundle.renameDstNamespace(newDst: String): MappingBundle {
-    val renamed = MappingBundle()
-    val oldData = flattenData()
-    val newData = MappingData(oldData.srcNamespace, newDst)
+fun MappingBundle.renameNamespaces(newSrc: String?, newDst: String): MappingBundle {
+    val oldData = if (srcNamespaces().size > 1 || dstNamespaces().size > 1) flattenData() else data[0]
+    val newData = MappingData(newSrc ?: oldData.srcNamespace, newDst)
     val newDocs = DocumentationData(newDst)
 
     oldData.apply {
@@ -17,5 +16,33 @@ fun MappingBundle.renameDstNamespace(newDst: String): MappingBundle {
         newData.parameters.putAll(parameters)
     }
 
-    return renamed.insert(newData, newDocs.insert(get(oldData.dstNamespace)))
+    return MappingBundle(newData, get(oldData.dstNamespace)?.let { newDocs.insert(it) })
+}
+
+fun MappingBundle.renameDstNamespace(newDst: String): MappingBundle {
+    return renameNamespaces(null, newDst)
+}
+
+fun MappingBundle.filterClasses(filter: (String) -> Boolean): MappingBundle {
+    val oldData = data.last()
+    val newData = MappingData(oldData.srcNamespace, oldData.dstNamespace)
+    val oldDocs = if (documentation.isNotEmpty()) documentation.last() else null
+
+    oldData.apply {
+        newData.classes.putAll(classes.filter { filter.invoke(it.value) })
+        newData.fields.putAll(fields.filter { newData.classes.containsKey(it.key.owner) })
+        newData.methods.putAll(methods.filter { newData.classes.containsKey(it.key.owner) })
+        newData.parameters.putAll(parameters.filter { newData.classes.containsKey(it.key.owner) })
+    }
+
+    val bundle = MappingBundle(data.subList(0, data.size-1).plus(newData), mutableListOf())
+
+    if (oldDocs != null) {
+        val newDocs = DocumentationData(newData.dstNamespace)
+        newDocs.classes.addAll(oldDocs.classes.filter { filter.invoke(it.name) })
+        bundle.insert(newDocs)
+    }
+
+
+    return bundle
 }