fix version validation with outdated version manifest

build.gradle.kts

@@ -7,7 +7,7 @@ plugins {
 }
 
 group = "dev.frogmc"
-version = "0.0.1-alpha.6"
+version = "0.0.1-alpha.7"
 
 repositories {
     maven {

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

@@ -48,9 +48,15 @@ object VersionChecker {
         }
     }
 
-    fun validateVersion(version: String): Boolean {
-        if (validVersions.isEmpty()) getValidVersions()
-        return validVersions.any { it.id == version }
+    fun validateVersion(version: String, ignoreCache: Boolean = false, offlineMode: Boolean): Boolean {
+        if (validVersions.isEmpty()) getValidVersions(ignoreCache)
+        if (!validVersions.any { it.id == version }) {
+            if (!offlineMode) {
+                return validateVersion(version, ignoreCache = true, offlineMode = false)
+            }
+            return false
+        }
+        return true
     }
 
     fun getVersionUrl(version: String): String {
@@ -86,17 +92,17 @@ object VersionChecker {
         return CachingHttpClient.getUncached(URI.create(url)).readAllBytes()
     }
 
-    private fun getUrl(url: String): String {
-        return CachingHttpClient.getString(URI.create(url))
+    private fun getUrl(url: String, ignoreCache: Boolean = false): String {
+        return CachingHttpClient.getString(URI.create(url), ignoreCache)
     }
 
-    private fun getValidVersions() {
+    private fun getValidVersions(ignoreCache: Boolean = false) {
         if (validVersions.isNotEmpty()) return
         // get json from https://piston-meta.mojang.com/mc/game/version_manifest_v2.json
         // make http request
 
         val url = "https://piston-meta.mojang.com/mc/game/version_manifest_v2.json"
-        val response = getUrl(url)
+        val response = getUrl(url, ignoreCache)
         // response is in format of {versions: [{id: "1.17.1", type: "release"}, ...]}
         // parse json
         // get all versions

src/main/kotlin/dev/frogmc/phytotelma/common/CachingHttpClient.kt

@@ -13,16 +13,16 @@ import kotlin.io.path.notExists
 
 object CachingHttpClient {
 
-    fun downloadTo(uri: URI, path: Path) {
-        if (path.notExists()) {
+    fun downloadTo(uri: URI, path: Path, allowOverwrite: Boolean) {
+        if (allowOverwrite || path.notExists()) {
             path.createParentDirectories()
             Files.copy(getUncached(uri), path)
         }
     }
 
-    fun get(uri: URI): InputStream {
+    fun get(uri: URI, ignoreCache: Boolean = false): InputStream {
         val cache = getCacheFile(uri)
-        if (cache.notExists()) {
+        if (ignoreCache || cache.notExists()) {
             getUncached(uri).use {
                 Files.copy(it, cache)
             }
@@ -30,8 +30,8 @@ object CachingHttpClient {
         return cache.inputStream()
     }
 
-    fun getString(uri: URI): String {
-        return get(uri).bufferedReader(StandardCharsets.UTF_8).lines().collect(Collectors.joining("\n"))
+    fun getString(uri: URI, ignoreCache: Boolean = false): String {
+        return get(uri, ignoreCache).bufferedReader(StandardCharsets.UTF_8).lines().collect(Collectors.joining("\n"))
     }
 
     fun getUncached(uri: URI): InputStream {

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

@@ -21,7 +21,7 @@ abstract class PhytotelmaGradleExtensionImpl : PhytotelmaGradleExtension {
     abstract fun getProject(): Project
 
     override fun minecraft(version: String, parchmentGameVersion: String, parchmentVersion: String?) {
-        if (VersionChecker.validateVersion(version)) {
+        if (VersionChecker.validateVersion(version, offlineMode = getProject().gradle.startParameter.isOffline)) {
             println("Setting up Minecraft...")
             val parchment =
                 parchmentVersion ?: kotlin.runCatching { ParchmentProvider.findForMinecraftVersion(version) }

src/main/kotlin/dev/frogmc/phytotelma/run/AssetDownloader.kt

@@ -46,6 +46,6 @@ object AssetDownloader {
     private fun get(localDir: Path, hash: String) {
         val shortHash = hash.substring(0, 2)
         val path = localDir.resolve("$shortHash/$hash")
-        CachingHttpClient.downloadTo(URI.create("$ASSETS_URL/$shortHash/$hash"), path)
+        CachingHttpClient.downloadTo(URI.create("$ASSETS_URL/$shortHash/$hash"), path, true)
     }
 }