Speed up the Gradle build

- Exclude assets/data (~250MB) from sources jars
- Limit licenser to .kt/.java so it doesn't scan ~29k resource files
- Enable the Gradle daemon and build cache
- The versioning plugin runs a full JGit status (~28s on this repo) in every project replace by ou own helper that use git local or CI env variable

build.gradle.kts

@@ -1,3 +1,6 @@
+import utilities.gitBranch
+import utilities.gitShortCommit
+
 plugins {
     id("cobblemon.root-conventions")
 }
@@ -6,6 +9,6 @@ version = "${project.property("mod_version")}+${project.property("mc_version")}"
 
 val isSnapshot = project.property("snapshot")?.equals("true") == true
 if (isSnapshot) {
-    val fixedBranchName = versioning.info.branch.substringAfter("/")
-    version = "$version-${fixedBranchName}-${versioning.info.build}"
+    val fixedBranchName = gitBranch().substringAfter("/")
+    version = "$version-${fixedBranchName}-${gitShortCommit()}"
 }

common/build.gradle.kts

@@ -1,9 +1,8 @@
 
 import utilities.isSnapshot
 import utilities.version
-import java.time.OffsetDateTime
-import java.time.ZoneOffset
-import java.time.format.DateTimeFormatter
+import utilities.gitBranch
+import utilities.gitCommit
 
 /*
  *
@@ -72,6 +71,14 @@ tasks.withType<Test> {
     }
 }
 
+// Git info lives in its own output dir (not processResources) so a new commit only rewrites this one file.
+val writeGitInfo by tasks.registering(WriteProperties::class) {
+    destinationFile = layout.buildDirectory.file("generated/gitInfo/cobblemon-git.properties")
+    property("commit", gitCommit())
+    property("branch", gitBranch())
+}
+sourceSets.main { output.dir(mapOf("builtBy" to writeGitInfo), layout.buildDirectory.dir("generated/gitInfo")) }
+
 tasks.processResources {
     exclude("data/**/README.md")
 }
@@ -98,11 +105,13 @@ sourceSets {
                 property("modid", "cobblemon")
                 property("version", project.version())
                 property("isSnapshot", if(rootProject.isSnapshot()) "true" else "false")
-                property("gitCommit", versioning.info.commit)
-                property("branch", versioning.info.branch)
                 System.getProperty("buildNumber")?.let { property("buildNumber", it) }
-                property("timestamp", OffsetDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ofPattern("MM/dd/yyyy hh:mm:ss")) + " UTC")
             }
         }
     }
 }
+
+// The platform jars are built from :common:jar, so the remapped common jars are only needed by `publish`
+tasks.assemble {
+    setDependsOn(dependsOn.filterNot { (it as? TaskProvider<*>)?.name in setOf("remapJar", "remapSourcesJar") })
+}

common/src/main/kotlin-templates/CobblemonBuildDetails.kt.peb

@@ -8,8 +8,12 @@ object CobblemonBuildDetails {
     const val VERSION = "{{ version }}"
     const val SNAPSHOT = {{ isSnapshot }}
 
-    const val GIT_COMMIT = "{{ gitCommit | default("Not Specified") }}"
-    const val BRANCH = "{{ branch | default("Not Specified") }}"
+    // Read at runtime rather than templated in, so a new commit doesn't invalidate compiled code.
+    private val git = java.util.Properties().apply {
+        CobblemonBuildDetails::class.java.getResourceAsStream("/cobblemon-git.properties")?.use(::load)
+    }
+    @JvmField val GIT_COMMIT: String = git.getProperty("commit", "Not Specified")
+    @JvmField val BRANCH: String = git.getProperty("branch", "Not Specified")
 
     fun smallCommitHash(): String {
         return this.GIT_COMMIT.substring(0, 7)

gradle.properties

@@ -2,6 +2,7 @@
 # This is required to provide enough memory for the Minecraft decompilation process.
 org.gradle.jvmargs=-Xmx8G
 org.gradle.daemon=false
+org.gradle.caching=true
 org.gradle.parallel=true
 
 group=com.cobblemon.mod

gradle/build-logic/build.gradle.kts

@@ -20,5 +20,4 @@ dependencies {
 
     implementation(libs.blossom)
     implementation(libs.ideaExt)
-    implementation(libs.versioning)
 }

gradle/build-logic/src/main/kotlin/cobblemon.base-conventions.gradle.kts

@@ -41,6 +41,7 @@ repositories {
 
 license {
     header(rootProject.file("HEADER"))
+    include("**/*.kt", "**/*.java")
 }
 
 architectury {
@@ -75,4 +76,16 @@ tasks {
     withType<Jar> {
         from(rootProject.file("LICENSE"))
     }
+
+    // Dev/intermediate jars only feed remapJar, which writes the compressed release jar.
+    // Deflating ~250MB of already-compressed assets at every stage is wasted time.
+    named<Jar>("jar") {
+        entryCompression = ZipEntryCompression.STORED
+    }
+
+    // Assets/data are ~250MB and already ship in the main jar; copying and remapping them
+    // into sources jars cost minutes per build.
+    withType<Jar>().named { it == "sourcesJar" }.configureEach {
+        exclude("assets/**", "data/**")
+    }
 }

gradle/build-logic/src/main/kotlin/cobblemon.platform-conventions.gradle.kts

@@ -44,6 +44,7 @@ tasks {
 
     shadowJar {
         archiveClassifier.set("dev-shadow")
+        entryCompression = ZipEntryCompression.STORED
         archiveBaseName.set("Cobblemon-${project.name}")
         configurations = listOf(bundle)
         mergeServiceFiles()

gradle/build-logic/src/main/kotlin/cobblemon.publish-conventions.gradle.kts

@@ -1,5 +1,6 @@
 import utilities.VersionType
 import utilities.isSnapshot
+import utilities.gitCommit
 import utilities.writeVersion
 
 plugins {
@@ -7,7 +8,6 @@ plugins {
     id("java-library")
     id("maven-publish")
     id("dev.architectury.loom")
-    id("net.nemerosa.versioning")
 }
 
 java {
@@ -53,7 +53,7 @@ publishing {
             version = project.writeVersion(VersionType.PUBLISHING)
             pom {
                 properties = mapOf(
-                    "gitCommit" to versioning.info.commit
+                    "gitCommit" to project.gitCommit()
                 )
             }
         }

gradle/build-logic/src/main/kotlin/cobblemon.root-conventions.gradle.kts

@@ -1,6 +1,5 @@
 plugins {
     base
-    id("net.nemerosa.versioning")
 }
 
 tasks {

gradle/build-logic/src/main/kotlin/utilities/Versioning.kt

@@ -22,3 +22,15 @@ enum class VersionType {
     PUBLISHING,
     FULL
 }
+// Null when git isn't installed or this isn't a git checkout (e.g. a source zip download)
+private fun Project.git(vararg args: String): String? = runCatching {
+    providers.exec {
+        commandLine("git", *args)
+        isIgnoreExitValue = true
+    }.standardOutput.asText.get().trim()
+}.getOrNull()?.takeIf { it.isNotEmpty() }
+
+// git CLI rather than the versioning plugin, whose JGit status scan costs ~30s per Gradle run. CI provides these.
+fun Project.gitCommit(): String = System.getenv("CI_COMMIT_SHA") ?: git("rev-parse", "HEAD") ?: "unknown"
+fun Project.gitShortCommit(): String = gitCommit().take(7)
+fun Project.gitBranch(): String = System.getenv("CI_COMMIT_REF_NAME") ?: git("rev-parse", "--abbrev-ref", "HEAD") ?: "unknown"

gradle/libs.versions.toml

@@ -7,7 +7,6 @@ licenser = "0.6.1"
 shadow = "8.1.1"
 blossom = "2.1.0"
 idea-ext = "1.1.7"
-versioning = "3.1.0"
 
 # Minecraft Development
 loom = "1.11-SNAPSHOT"
@@ -59,7 +58,6 @@ shadow = { group = "com.github.johnrengelman", name = "shadow", version.ref = "s
 blossom = { group = "net.kyori", name = "blossom", version.ref = "blossom" }
 ideaExt = { group = "org.jetbrains.gradle.plugin.idea-ext", name = "org.jetbrains.gradle.plugin.idea-ext.gradle.plugin", version.ref = "idea-ext"}
 licenser = { group = "gradle.plugin.org.cadixdev.gradle", name = "licenser", version.ref = "licenser" }
-versioning = { group = "net.nemerosa.versioning", name = "net.nemerosa.versioning.gradle.plugin", version.ref = "versioning" }
 
 # Kotlin
 kotlin-stdlib = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-jdk8", version.ref = "kotlin" }