Modified info to be passed from manifest.json instead of hard coding per file

.gitignore

@@ -1,5 +1,6 @@
 .idea/
 testing_data/
+*.log
 
 # ---> Python
 # Byte-compiled / optimized / DLL files

piston.py

@@ -1,13 +1,13 @@
 import platform
 from pathlib import PurePath, Path
 from os import getenv
+import subprocess
 import json
 import uuid
 from zipfile import ZipFile
 import datetime
 import logging
-
-# Launcher/Install profiles are found in .minecraft/launcher_profiles.json
+import argparse
 
 
 def get_sysroot():
@@ -38,16 +38,20 @@ def get_modpack_id(modpack_name, install_list):
     return None
 
 
-def main(modpack_path):
+def main(modpack_path, manifest_path, forge_installer=None):
     # Get Minecraft Install Location
     sys_root = get_sysroot()
     if not sys_root:
-        sys_root = input("Unable to locate your minecraft install - please enter it here: ")
+        sys_root = input("Unable to locate your minecraft install - please enter the path to it here: ")
 
     logging.debug(f"System path set to: {sys_root}")
 
+    # Get Manifest info:
+    with open(manifest_path, 'r') as f:
+        manifest_info = json.load(f)
+
     # Get Modpack Name from zipfile:
-    modpack_name = modpack_path.stem
+    modpack_name = manifest_info['name']
     logging.debug(f"Modpack name extracted as: {modpack_name}")
 
     # Get Minecraft Installs
@@ -55,24 +59,24 @@ def main(modpack_path):
     modpack_id = get_modpack_id(modpack_name, install_list) or uuid.uuid4().hex
     logging.debug(f"Modpack ID extracted as: {modpack_id}")
 
-    install_path = sys_root / '.moddedminecraft' / modpack_name
+    install_path = sys_root / '.moddedminecraft' / modpack_name.replace(' ', '_')
     logging.debug(f"Modpack install path set to: {install_path}")
 
+    if forge_installer:
+        install_forge(forge_installer)
+    else:
+        logging.info("Forge installer not found/specified, assuming forge is already installed...")
+
     # Check if modpack is already installed
     if modpack_id not in install_list:
         logging.info(f"Modpack {modpack_name} ({modpack_id}) not found in install list - creating...")
         install_list[modpack_id] = {
             'created': datetime.datetime.now().strftime('%Y-%m-%dT%H:%M:%S.%f')[:-3] + 'Z',
             'gameDir': str(install_path),
-            'icon': 'Redstone_Block',
-            'javaArgs': '-Xmx4G '
-                        '-XX:+UnlockExperimentalVMOptions '
-                        '-XX:+UseG1GC -XX:G1NewSizePercent=20 '
-                        '-XX:G1ReservePercent=20 '
-                        '-XX:MaxGCPauseMillis=50 '
-                        '-XX:G1HeapRegionSize=32M',
+            'icon': manifest_info['icon'],
+            'javaArgs': manifest_info['javaArgs'],
             'lastUsed': '',
-            'lastVersionId': '1.16.5-forge-36.0.43',
+            'lastVersionId': manifest_info['lastVersionId'],
             'name': modpack_name,
             'type': 'custom'
         }
@@ -91,7 +95,46 @@ def main(modpack_path):
     logging.info("Validation Completed.")
 
 
+def find_modpack_files(path_to_search=PurePath()):
+    path = Path(path_to_search)
+    modpack_zip = None
+    modpack_manifest = None
+    forge_installer = None
+    for p in path.glob("*"):
+        if p.is_dir():
+            continue
+        elif '.jar' in p.name.lower():
+            forge_installer = p
+        elif '.zip' in p.name.lower():
+            modpack_zip = p
+        elif '.json' in p.name.lower():
+            modpack_manifest = p
+    return modpack_zip, modpack_manifest, forge_installer
+
+
+def install_forge(forge_installer_path):
+    logging.info(f"Forge installer found, launching...")
+    subprocess.call(['java', '-jar', Path(forge_installer_path).resolve()])
+
+
 if __name__ == '__main__':
-    logging.basicConfig()
-    logging.getLogger().setLevel(logging.DEBUG)
-    main(PurePath() / 'testing_data' / 'FusterCluck_test.zip')
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--log_level", type=str, default='INFO', help='set logging level of this program', nargs='?')
+    parser.add_argument("--modpackpath", type=str, default=PurePath(), nargs='?')
+    parser.add_argument("--replace", type=bool, default=True, nargs='?', help='Overwrite contents of the mod folder')
+
+    args = parser.parse_args()
+
+    logging.basicConfig(filename='piston.log',
+                        filemode='w',
+                        level=getattr(logging, args.log_level.upper()),
+                        format='[%(asctime)s] [%(levelname)s] %(message)s',
+                        datefmt='%Y-%m-%dT%H:%M:%S')
+
+    target_dir = args.modpackpath or PurePath()
+
+    modpack_zip, modpack_manifest, forge_installer = find_modpack_files(target_dir)
+
+    main(modpack_zip, modpack_manifest, forge_installer)
+
+    logging.info("Done baking your cake - you can open your minecraft launcher now!")