Add gzip-jagex command

Signed-off-by: Graham <gpe@openrs2.org>

compress-cli/src/main/kotlin/org/openrs2/compress/cli/CompressCommand.kt

@@ -9,6 +9,7 @@ import org.openrs2.compress.cli.deflate.InflateCommand
 import org.openrs2.compress.cli.gzip.GunzipCommand
 import org.openrs2.compress.cli.gzip.GunzipLaxCommand
 import org.openrs2.compress.cli.gzip.GzipCommand
+import org.openrs2.compress.cli.gzip.GzipJagexCommand
 import org.openrs2.compress.cli.lzma.LzmaCommand
 import org.openrs2.compress.cli.lzma.UnlzmaCommand
 import org.openrs2.compress.cli.pack200.Pack200Command
@@ -26,6 +27,7 @@ public class CompressCommand : NoOpCliktCommand(name = "compress") {
             DeflateCommand(),
             InflateCommand(),
             GzipCommand(),
+            GzipJagexCommand(),
             GunzipCommand(),
             GunzipLaxCommand(),
             LzmaCommand(),

compress-cli/src/main/kotlin/org/openrs2/compress/cli/gzip/GzipJagexCommand.kt

@@ -0,0 +1,22 @@
+package org.openrs2.compress.cli.gzip
+
+import com.github.ajalt.clikt.core.CliktCommand
+import com.github.ajalt.clikt.parameters.options.option
+import com.github.ajalt.clikt.parameters.types.defaultStdin
+import com.github.ajalt.clikt.parameters.types.defaultStdout
+import com.github.ajalt.clikt.parameters.types.inputStream
+import com.github.ajalt.clikt.parameters.types.outputStream
+import org.openrs2.compress.gzip.JagexGzipOutputStream
+
+public class GzipJagexCommand : CliktCommand(name = "gzip-jagex") {
+    private val input by option().inputStream().defaultStdin()
+    private val output by option().outputStream(truncateExisting = true).defaultStdout()
+
+    override fun run() {
+        input.use { input ->
+            JagexGzipOutputStream(output).use { output ->
+                input.copyTo(output)
+            }
+        }
+    }
+}