code-generator/lib

.gitignore

@@ -3,10 +3,3 @@
 flamegraph.svg
 perf.data
 perf.data.old
-
-
-code-generator/Burger
-code-generator/client.jar
-code-generator/burger.json
-__pycache__
-*.tmp

code-generator/.gitignore

@@ -0,0 +1,3 @@
+downloads
+__pycache__
+*.tmp

code-generator/lib/version.py

@@ -0,0 +1,80 @@
+from mappings import Mappings
+import requests
+import json
+import os
+
+
+def download_burger():
+    print('\033[92mDownloading Burger...\033[m')
+    os.system(
+        'cd downloads && git clone https://github.com/pokechu22/Burger && cd Burger && git pull')
+
+    print('\033[92mInstalling dependencies...\033[m')
+    os.system('cd downloads/Burger && pip install six jawa')
+
+
+def get_version_manifest():
+    if not os.path.exists(f'downloads/version_manifest.json'):
+        print(
+            f'\033[92mDownloading version manifest...\033[m')
+        version_manifest_data = requests.get(
+            'https://launchermeta.mojang.com/mc/game/version_manifest.json').json()
+        with open(f'downloads/version_manifest.json', 'w') as f:
+            json.dump(version_manifest_data, f)
+    else:
+        with open(f'downloads/version_manifest.json', 'r') as f:
+            version_manifest_data = json.load(f)
+    return version_manifest_data
+
+
+def get_version_data(version_id: str):
+    if not os.path.exists(f'downloads/{version_id}.json'):
+        version_manifest_data = get_version_manifest()
+
+        print(
+            f'\033[92mGetting data for \033[1m{version_id}..\033[m')
+        package_url = next(
+            filter(lambda v: v['id'] == version_id, version_manifest_data['versions']))['url']
+        package_data = requests.get(package_url).json()
+        with open(f'downloads/{version_id}.json', 'w') as f:
+            json.dump(package_data, f)
+    else:
+        with open(f'downloads/{version_id}.json', 'r') as f:
+            package_data = json.load(f)
+    return package_data
+
+
+def get_client_jar(version_id: str):
+    if not os.path.exists(f'downloads/client-{version_id}.jar'):
+        package_data = get_version_data(version_id)
+        print('\033[92mDownloading client jar...\033[m')
+        client_jar_url = package_data['downloads']['client']['url']
+        with open('client.jar', 'wb') as f:
+            f.write(requests.get(client_jar_url).content)
+
+
+def get_burger_data_for_version(version_id: str):
+    if not os.path.exists(f'downloads/burger-{version_id}.json'):
+        get_client_jar(version_id)
+
+        os.system(
+            f'cd downloads/Burger && python munch.py ../client-{version_id}.jar --output ../burger-{version_id}.json'
+        )
+    with open(f'burger-{version_id}.json', 'r') as f:
+        return json.load(f)
+
+
+def get_mappings_for_version(version_id: str):
+    if not os.path.exists(f'downloads/mappings-{version_id}.json'):
+        package_data = get_version_data(version_id)
+
+        client_mappings_url = package_data['downloads']['client_mappings']['url']
+
+        mappings_text = requests.get(client_mappings_url).text
+
+        with open(f'downloads/mappings-{version_id}.json', 'w') as f:
+            f.write(mappings_text)
+    else:
+        with open(f'downloads/mappings-{version_id}.json', 'r') as f:
+            mappings_text = f.read()
+    return Mappings.parse(mappings_text)

code-generator/main.py

@@ -1,54 +1,11 @@
-from mappings import Mappings
-import packetcodegen
+from .lib import version, packetcodegen
 import requests
 import json
 import sys
 import os
 
-print(
-    f'\033[92mFinding Minecraft version...\033[m')
-version_manifest_data = requests.get(
-    'https://launchermeta.mojang.com/mc/game/version_manifest.json').json()
-minecraft_version = version_manifest_data['latest']['release']
-print(
-    f'\033[92mUsing \033[1m{minecraft_version}..\033[m')
-package_url = next(
-    filter(lambda v: v['id'] == minecraft_version, version_manifest_data['versions']))['url']
-package_data = requests.get(package_url).json()
-client_jar_url = package_data['downloads']['client']['url']
-
-skipping_burger = False
-try:
-    with open('burger.json', 'r') as f:
-        burger_data = json.load(f)[0]
-        if burger_data['version']['id'] == minecraft_version:
-            skipping_burger = True
-            print(
-                f'\033[92mSkipping Burger step because the burger.json is up-to-date.\033[m')
-except FileNotFoundError:
-    pass
-
-if not skipping_burger:
-    print('\033[92mDownloading Burger...\033[m')
-    r = os.system('git clone https://github.com/pokechu22/Burger')
-    os.system('cd Burger && git pull')
-
-    # print('\033[92mInstalling dependencies...\033[m')
-    # os.system('cd Burger && pip install six jawa')
-
-    print('\033[92mDownloading client jar...\033[m')
-    with open('client.jar', 'wb') as f:
-        f.write(requests.get(client_jar_url).content)
-
-    print(f'\033[92mExtracting data with Burger...\033[m')
-    os.system(
-        'cd Burger && python munch.py ../client.jar --output ../burger.json')
-
-client_mappings_url = package_data['downloads']['client_mappings']['url']
-mappings = Mappings.parse(requests.get(client_mappings_url).text)
-
-with open('burger.json', 'r') as f:
-    burger_data = json.load(f)
+mappings = version.get_mappings_for_version('1.18.2')
+burger_data = version.get_burger_data_for_version('1.18.2')
 
 burger_packets_data = burger_data[0]['packets']['packet']
 packet_id, direction, state = int(sys.argv[1]), sys.argv[2], sys.argv[3]