[build] Setup project for cross-version Minecraft development

tweed5-minecraft/conventions/build.gradle.kts

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+import dev.panuszewski.gradle.pluginMarker
+
+plugins {
+	`kotlin-dsl`
+}
+
+dependencies {
+	implementation("de.siphalor.tweed5:tweed5-conventions")
+	implementation(pluginMarker(mcCommonLibs.plugins.fabric.loom))
+	implementation(pluginMarker(mcCommonLibs.plugins.jcyo))
+}

tweed5-minecraft/conventions/settings.gradle.kts

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+plugins {
+	id("dev.panuszewski.typesafe-conventions") version "0.9.0"
+}
+
+typesafeConventions {
+	autoPluginDependencies = false
+}
+
+dependencyResolutionManagement {
+	repositories {
+		gradlePluginPortal()
+		maven {
+			name = "Siphalor"
+			url = uri("https://maven.siphalor.de")
+			mavenContent {
+				includeGroupAndSubgroups("de.siphalor")
+			}
+		}
+		maven {
+			name = "FabricMC"
+			url = uri("https://maven.fabricmc.net")
+			mavenContent {
+				includeGroupAndSubgroups("net.fabricmc")
+				includeGroup("fabric-loom")
+			}
+		}
+	}
+	versionCatalogs {
+		create("libs") {
+			from(files("../../gradle/libs.versions.toml"))
+		}
+	}
+}
+
+includeBuild("../../conventions")
+
+rootProject.name = "tweed5-minecraft-conventions"

tweed5-minecraft/conventions/src/main/kotlin/de.siphalor.tweed5.minecraft.mod.cross-version.gradle.kts

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+import java.util.Properties
+
+plugins {
+	id("fabric-loom")
+	id("de.siphalor.jcyo")
+	id("de.siphalor.tweed5.minecraft.mod.base")
+}
+
+val minecraftVersionDescriptor = project.property("minecraft.version.descriptor") as String
+val mcProps = Properties().apply {
+	val propFile = project.layout.settingsDirectory.file("gradle/mc-$minecraftVersionDescriptor/gradle.properties").asFile
+	propFile.inputStream().use { load(it) }
+}
+
+val mcCatalog = versionCatalogs.named("mcLibs")
+
+group = "de.siphalor.tweed5.minecraft.${project.name}"
+val archivesBaseName = "${project.name}-mc$minecraftVersionDescriptor"
+base {
+	archivesName.set(archivesBaseName)
+}
+val shortVersion = project.property("tweed5.version").toString()
+val minecraftVersion = getMcCatalogVersion("minecraft")
+version = "$shortVersion+mc$minecraftVersion"
+
+sourceSets {
+	create("testmod") {
+		compileClasspath += sourceSets.main.get().compileClasspath
+		runtimeClasspath += sourceSets.main.get().runtimeClasspath
+	}
+}
+
+// For some reason dependencyResolutionManagement from the settings.gradle doesn't seem to be passed through correctly,
+// so we're defining the repositories right here
+repositories {
+	maven {
+		name = "Parchment"
+		url = uri("https://maven.parchmentmc.org")
+		mavenContent {
+			includeGroupAndSubgroups("org.parchmentmc")
+		}
+	}
+	maven {
+		name = "Siphalor"
+		url = uri("https://maven.siphalor.de")
+		mavenContent {
+			includeGroupAndSubgroups("de.siphalor")
+		}
+	}
+}
+
+dependencies {
+	minecraft(mcCatalog.findLibrary("minecraft").get())
+	mappings(loom.layered {
+		officialMojangMappings()
+		parchment("org.parchmentmc.data:parchment-$minecraftVersion:${getMcCatalogVersion("parchment")}@zip")
+	})
+	modImplementation(mcCommonLibs.fabric.loader)
+}
+
+fun getMcCatalogVersion(name: String): String {
+	return mcCatalog.findVersion(name).get().requiredVersion
+}