fix fa zip handling

Author: Brutus5000

apps/faf-legacy-deployment/scripts/CoopDeployer.kt

@@ -379,11 +379,23 @@ class Patcher(
         require(Files.isRegularFile(path)) { "Path $path is not a regular file" }
 
         val archiveName = base.relativize(path).toString().replace("\\", "/")
-        val entry = ZipEntry(archiveName)
-        // fix timestamp for determinism (not strictly necessary)
-        entry.time = 315532800000L
+
+
+        // Read file fully (FA requires sizes & CRC up front otherwise can't read the zip file)
+        val bytes = Files.readAllBytes(path)
+        val crc = java.util.zip.CRC32().apply { update(bytes) }
+
+        val entry = ZipEntry(archiveName).apply {
+            method = ZipEntry.DEFLATED
+            size = bytes.size.toLong()
+            compressedSize = -1 // let deflater handle, still no descriptor
+            this.crc = crc.value
+            // fix timestamp for determinism (not strictly necessary)
+            time = 315532800000L // 1980-01-01
+        }
+
         this.putNextEntry(entry)
-        Files.newInputStream(path).use { inp -> inp.copyTo(this) }
+        this.write(bytes)
         this.closeEntry()
     }