build: Upgrade versioning to handle multiple minecraft versions

buildSrc/src/lookupversion.kt

@@ -1,26 +1,25 @@
-
 fun execString(vararg args: String): String {
-    val pb = ProcessBuilder(*args)
-        .redirectOutput(ProcessBuilder.Redirect.PIPE)
-        .start()
-    pb.waitFor()
-    return pb.inputStream.readAllBytes().decodeToString().trim()
+	val pb = ProcessBuilder(*args)
+		.redirectOutput(ProcessBuilder.Redirect.PIPE)
+		.start()
+	pb.waitFor()
+	return pb.inputStream.readAllBytes().decodeToString().trim()
 }
 
-private val tag = "([0-9.]+)\\.0".toRegex()
-private val tagOffset = "([0-9.]+)\\.0-([0-9]+)..+".toRegex()
+private val tag = "([0-9.]+)(?:\\+.*)?".toRegex()
+private val tagOffset = "([0-9.]+)(?:\\+.*)?-([0-9]+)-(.+)".toRegex()
 
 inline fun <T> Regex.useMatcher(string: String, block: (MatchResult) -> T): T? {
-    return matchEntire(string)?.let(block)
+	return matchEntire(string)?.let(block)
 }
 
-fun getGitTagInfo(): String {
-    val str = execString("git", "describe", "--tags", "HEAD")
-    tag.useMatcher(str) {
-        return it.groupValues[0]
-    }
-    tagOffset.useMatcher(str) {
-        return it.groupValues[1] + "." + it.groupValues[2]
-    }
-    return "nogitversion"
+fun getGitTagInfo(mcVersion: String): String {
+	val str = execString("git", "describe", "--tags", "HEAD")
+	tag.useMatcher(str) {
+		return it.groupValues[1] + "+mc$mcVersion"
+	}
+	tagOffset.useMatcher(str) {
+		return it.groupValues[1] + "-dev+mc$mcVersion+" + it.groupValues[3]
+	}
+	return "nogitversion+mc$mcVersion"
 }