Initial modpack installation implementation

mcfs.py

@@ -1,6 +1,9 @@
 import os
 from sys import platform
 import shutil
+import zipfile
+import json
+
 
 def __get_mc_dir():
     directory = ""
@@ -11,17 +14,18 @@ def __get_mc_dir():
         appdata = os.getenv('APPDATA')
         directory = appdata + r"\.minecraft"
     elif platform == "darwin":
-        directory = "~/Library/Application Support/minecraft" #unsure
+        directory = "~/Library/Application Support/minecraft"  # unsure
     directory = os.getenv("MC_DIR", directory)
     return directory
 
+
 def __get_cache_dir():
     directory = ""
     if platform == 'win32':
         appdata_local = os.getenv("LOCALAPPDATA")
         directory = appdata_local + r"\mc-get"
     elif platform == 'darwin':
-        directory = '~/Library/Caches/mc-get' #unsure
+        directory = '~/Library/Caches/mc-get'  # unsure
     elif platform == 'linux':
         cache = os.getenv("HOME") + "/.cache"
         directory = cache + "/mc-get"
@@ -30,15 +34,40 @@ def __get_cache_dir():
         directory = cache + "/mc-get"
     return directory
 
-def is_path_exist(path:str):
+
+def get_modpack_info(filename: str):
+    with zipfile.ZipFile(os.path.join(cache_dir, filename)) as modpack:
+        with modpack.open("modrinth.index.json") as index:
+            return type("modpack_index", (object,), json.load(index))
+
+
+def install_modpacks_override(filename: str):
+    with zipfile.ZipFile(os.path.join(cache_dir, filename)) as modpack:
+        files = filter(lambda x: x.filename.startswith("overrides/"), modpack.infolist())
+        for file in files:
+            if file.is_dir():
+                continue
+            _to_path = os.path.join(mc_dir, file.filename[len("overrides/"):])
+            os.makedirs(os.path.dirname(_to_path), exist_ok=True)
+            print(file.filename[len("overrides/"):])
+            with modpack.open(file) as _from, open(_to_path, 'wb') as _to:
+                shutil.copyfileobj(_from, _to)
+
+
+def is_path_exist(path: str):
     return os.path.exists(os.path.join(path))
 
-def is_standart_dir_structure():
-    return not os.path.exists(os.path.join(directory, "home"))
 
-def install(filename, subdir:str):
-    shutil.copy2(os.path.join(cache_dir,filename),\
-               os.path.join(mc_dir,subdir,filename))
+def is_standard_dir_structure():
+    return not os.path.exists(os.path.join(mc_dir, "home"))
+
+
+def install(filename, subdir: str):
+    _from = os.path.join(cache_dir, filename)
+    _to = os.path.join(mc_dir, subdir, filename)
+    os.makedirs(os.path.dirname(_to), exist_ok=True)
+    shutil.copy2(_from, _to)
+
 
 mc_dir = __get_mc_dir()
 cache_dir = __get_cache_dir()