Add jvm search and download support (thanks KiteeLauncher)

This commit is contained in:
2026-05-19 23:51:55 +08:00
parent c50603a47f
commit 3d80fab562
8 changed files with 1211 additions and 9 deletions
+39
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@@ -0,0 +1,39 @@
"""
bk_core
Copyright (c) 2024~2025 Techarerm/TedKai
Copyright (c) 2026 Kitee Contributors. All rights reserved.
"""
import hashlib
def verify_checksum(file_path, expected_sha1):
sha1 = hashlib.sha1()
with open(file_path, "rb") as f:
while True:
data = f.read(65536) # Read in 64KB chunks
if not data:
break
sha1.update(data)
file_sha1 = sha1.hexdigest()
return file_sha1 == expected_sha1
def verify_checksum_v2(file_path, expected_hash, crypto_type):
hash_dict = {
'sha1': hashlib.sha1,
'sha256': hashlib.sha256,
'md5': hashlib.md5
}
if crypto_type not in hash_dict:
raise ValueError(f"Unsupported hash type: {crypto_type}")
hash_obj = hash_dict[crypto_type]()
with open(file_path, "rb") as f:
for chunk in iter(lambda: f.read(65536), b""):
hash_obj.update(chunk)
file_sha1 = hash_obj.hexdigest()
return file_sha1 == expected_hash
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@@ -0,0 +1,29 @@
"""
bk_core
Copyright (c) 2024~2025 Techarerm/TedKai
"""
import os
from pathlib import Path
def deduplicate_java_classpath(classpath, classpath_separator):
paths = classpath.split(classpath_separator)
cleaned_classpath = [str(Path(p.strip())) for p in paths if p.strip()]
return classpath_separator.join(cleaned_classpath)
def delete_missing_java_classpath(classpath, classpath_separator):
paths = classpath.split(classpath_separator)
existing_classpath = [p for p in paths if os.path.exists(p)]
return classpath_separator.join(existing_classpath)
def replace_specified_value_to_target_string_in_java_classpath(classpath, classpath_separator, value, string):
paths = classpath.split(classpath_separator)
new_paths = [path.replace(value, string) for path in paths]
return classpath_separator.join(new_paths)
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"""
bk_core
Copyright (c) 2024~2025 Techarerm/TedKai
Copyright (c) 2026 Kitee Contributors. All rights reserved.
"""
import contextlib
import copy
import json
from pathlib import Path
def validation_rule(
default=None,
*,
children=None,
write_back_if_not_exist=False,
recover_missing_items=False,
):
rule = {
"writeBackIfNotExist": write_back_if_not_exist,
"recoverMissingItems": recover_missing_items,
}
if children is not None:
rule["children"] = children
else:
rule["default"] = default
return rule
def required_value(default, *, recover_missing_items=False):
return validation_rule(
default,
write_back_if_not_exist=True,
recover_missing_items=recover_missing_items,
)
def required_section(children):
return validation_rule(children=children, write_back_if_not_exist=True)
class FileSettings:
"""
Simple Settings Object
IMPORTANT: Settings always use self.data as the main operate data, NOT FROM disk settings file!!!
Usage:
FileSettings.create() -> Create settings file (path is self.path)
FileSettings.load() - > Load settings file
FileSettings.save() -> Save settings file
FileSettings.edit() -> Edit settings file (Auto save when with block completes)
Example:
with FileSettings.edit() as settings:
settings["hello"] = "world"
"""
def __init__(self, path, default, validation_rules=None,
dumps_func=json.dumps, load_func=json.load,
settings_change_callback=None):
self.data = copy.deepcopy(default)
self.default = copy.deepcopy(default)
self.path: Path = Path(path)
self.validation_rules = validation_rules
self.dumps_func = dumps_func
self.load_func = load_func
self.settings_change_callback = settings_change_callback
def reset(self):
"""Replace self.data with self.default and save"""
self.data = copy.deepcopy(self.default)
self.save()
if callable(self.settings_change_callback):
self.settings_change_callback(self.data)
def __repr__(self):
return f"<FileSettings At {self.path.as_posix()}>"
def create(self, exist_ok=False):
"""
Create settings file (path is self.path, data use default value)
:param exist_ok: If not True, raise exception if file already exists
:return:
"""
self.path.parent.mkdir(parents=True, exist_ok=True)
if not exist_ok and self.path.exists():
raise FileExistsError(f'{self.path} already exists')
self.path.write_text(self._dumps(self.default))
def read_from_exist(self):
self.data = self.load()
def mload(self):
"""Get data from memory"""
return copy.deepcopy(self.data)
def load(self):
"""
Load settings file data into self.data (path is self.path)
:return:
"""
if not self.path.exists():
raise FileNotFoundError(f'{self.path} does not exist')
with self.path.open("rb") as settings_file:
data = self.load_func(settings_file)
if isinstance(self.validation_rules, dict):
data = self.validate_data(data, self.default, self.validation_rules)
return data
def save(self):
"""
Save self.data (data in memory) into settings file
:return:
"""
if not self.path.exists():
raise FileNotFoundError(f'{self.path} does not exist. Create it before saving.')
self.path.write_text(self._dumps(self.data))
def get(self, key, default=None):
return self.data.get(key, default)
def dget(self, key, default=None): # dget -> get_default
return self.default.get(key, default)
def exists(self):
return self.path.exists()
@contextlib.contextmanager
def edit(self):
"""
Edit settings (With auto save)
:return:
"""
if not self.exists():
self.create()
yield self
self.save()
if callable(self.settings_change_callback):
self.settings_change_callback(self)
def validate_data(self, data, default, rules):
"""
Validates data by validating rules.
:param data: dict data
:param default: default sample
:param rules: rules of all keys
:return:
"""
if not isinstance(data, dict):
data = {}
if not isinstance(default, dict):
default = {}
if not isinstance(rules, dict):
return copy.deepcopy(data)
validated = copy.deepcopy(data)
for key, rule in rules.items():
rule_default, options = self._parse_validation_rule(rule)
default_value = copy.deepcopy(default.get(key, rule_default))
if key not in validated:
if options.get("writeBackIfNotExist"):
validated[key] = self._validate_value(
default_value,
default_value,
rule_default,
options,
)
continue
validated[key] = self._validate_value(
validated[key],
default_value,
rule_default,
options,
)
return validated
def update(self, settings):
"""Update self.data with new settings values."""
if not isinstance(settings, dict):
raise TypeError("settings must be a dict")
def update_inner(new, old):
if not isinstance(old, dict):
return
for n_k, n_v in new.items():
if isinstance(n_v, dict) and (n_k in old and isinstance(old[n_k], dict)):
update_inner(n_v, old[n_k])
else:
old[n_k] = copy.deepcopy(n_v)
update_inner(settings, self.data)
if callable(self.settings_change_callback):
self.settings_change_callback(self)
def update_new_settings(self, new_default_settings):
"""Add missing settings to self.default and self.data."""
if not isinstance(new_default_settings, dict):
raise TypeError("new_default_settings must be a dict")
def add_missing(new, old):
if not isinstance(old, dict):
return
for n_k, n_v in new.items():
if isinstance(n_v, dict) and (n_k in old and isinstance(old[n_k], dict)):
add_missing(n_v, old[n_k])
if n_k not in old:
old[n_k] = copy.deepcopy(n_v)
add_missing(new_default_settings, self.default)
add_missing(new_default_settings, self.data)
if callable(self.settings_change_callback):
self.settings_change_callback(self)
@staticmethod
def _parse_validation_rule(rule):
if isinstance(rule, dict) and ("default" in rule or "children" in rule):
options = {
"writeBackIfNotExist": rule.get("writeBackIfNotExist", False),
"recoverMissingItems": rule.get("recoverMissingItems", False), # Recover missing item (only for list)
}
if "children" in rule:
return rule["children"], options
return rule.get("default"), options
if (
isinstance(rule, (list, tuple))
and len(rule) == 2
and isinstance(rule[1], dict)
):
return rule[0], rule[1]
return rule, {}
def _validate_value(self, value, default_value, rule_default, options):
if isinstance(rule_default, dict):
if not isinstance(value, dict):
value = {}
if not isinstance(default_value, dict):
default_value = {}
return self.validate_data(value, default_value, rule_default)
if isinstance(default_value, list):
if not isinstance(value, list):
return copy.deepcopy(default_value)
validated = copy.deepcopy(value)
if options.get("recoverMissingItems"):
for item in default_value:
if item not in validated:
validated.append(copy.deepcopy(item))
return validated
if default_value is None:
return value
if type(value) is not type(default_value):
return copy.deepcopy(default_value)
return value
def _dumps(self, data):
if not callable(self.dumps_func):
raise TypeError(f"dumps_func must be callable")
return self.dumps_func(data)
def __getitem__(self, key):
return self.data[key]
def __setitem__(self, key, value):
self.data[key] = value
if callable(self.settings_change_callback):
self.settings_change_callback(self)
def __eq__(self, other):
if isinstance(other, FileSettings):
return self.path == other.path and self.data == other.data
if isinstance(other, dict):
return self.data == other
return NotImplemented
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"""
bk_core
Copyright (c) 2024~2025 Techarerm/TedKai
Copyright (c) 2026 Kitee Contributors. All rights reserved.
"""
import zipfile
import requests
import os
def create_download_task(
url,
dest_path,
sha1=None,
with_verify=True,
crypto_type="sha1",
chunk_size=8192,
):
return {
"url": url,
"dest": dest_path,
"sha1": sha1,
"with_verify": with_verify,
"crypto_type": crypto_type,
"chunk_size": chunk_size,
}
def flatten_download_queue(nested_urls_and_paths):
return [
create_download_task(url, dest_path)
for sublist in nested_urls_and_paths
for url, dest_path in sublist
]
def download_file(url, dest_path, with_verify=True, sha1=None, no_output=False, custom_chunk_size=8192):
"""
Downloads a file from a URL and saves it to dest_path.
"""
return [
create_download_task(
url,
dest_path,
sha1=sha1,
with_verify=with_verify,
chunk_size=custom_chunk_size,
)
]
def n_download_file(url, dest_path, enable_hash_check=False, sha1=None, no_download_output=False, chunk_size=8192):
"""
Downloads a file from a URL and saves it to dest_path.
"""
return [
create_download_task(
url,
dest_path,
sha1=sha1,
with_verify=enable_hash_check,
chunk_size=chunk_size,
)
]
def extract_zip(zip_path, extract_to):
try:
with zipfile.ZipFile(zip_path, 'r') as zip_ref:
zip_ref.extractall(extract_to)
print(f"Extracted {zip_path} to {extract_to}")
except zipfile.BadZipFile as e:
print(f"[ERR] Error extracting {zip_path}: {e}")
def multi_thread_download(nested_urls_and_paths, name, max_workers=5, retries=1, download_with_progress_bar=True):
"""
Downloads multiple files using multiple threads with retry attempts.
nested_urls_and_paths should be a nested list where each element is a list containing a tuple of (url, dest_path).
"""
return flatten_download_queue(nested_urls_and_paths)
def multithread_download(
download_url_list,
file_dest_list,
progress_name,
max_workers=8,
with_verify_checksum=False,
file_hash_list=None,
download_with_progress_bar=False,
no_output=None,
crypto_type="sha1",
):
# parameters
if file_hash_list is None:
file_hash_list = []
if no_output is None:
no_output = download_with_progress_bar
if not with_verify_checksum:
file_hash_list = [None for _ in download_url_list]
return [
create_download_task(
file_url,
file_dest,
sha1=file_hash,
with_verify=with_verify_checksum,
crypto_type=crypto_type,
)
for file_url, file_dest, file_hash in zip(download_url_list, file_dest_list, file_hash_list)
]
def find_jar_file_main_class(jar_file_path):
manifest_path = 'META-INF/MANIFEST.MF'
try:
with zipfile.ZipFile(jar_file_path, 'r') as jar:
if not manifest_path in jar.namelist():
return None
manifest = jar.read(manifest_path).decode('utf-8')
for line in manifest.splitlines():
if line.startswith('Main-Class:'):
# Return the class name specified in the Main-Class entry
return line.split(':')[1].strip()
return None
except Exception as e:
return None
def check_url_status(url):
try:
# Send a HEAD request to save bandwidth
response = requests.head(url, allow_redirects=True, timeout=5)
if response.status_code == 200:
return True
elif response.status_code == 404:
return False
else:
return False
except Exception as e:
return False
def pause():
command = None
if os.name == "posix":
command = 'read -p "Press enter to continue..."'
elif os.name == "nt":
command = "pause"
if command is not None: os.system(command)
+78 -5
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@@ -8,6 +8,7 @@ PAPER_VERSION_API = "https://api.papermc.io/v2/projects/paper/versions/{}"
PAPER_SERVER_JAR_API = "https://api.papermc.io/v2/projects/paper/versions/{}/builds/{}/downloads/paper-{}-{}.jar"
MOJANG_VERSION_MANIFEST_V2 = "https://piston-meta.mojang.com/mc/game/version_manifest_v2.json"
def read_server_properties(server_dir: Path) -> Properties:
if not server_dir.exists():
raise FileNotFoundError("Server directory does not exist")
@@ -25,6 +26,7 @@ def save_server_properties(properties: Properties, server_dir: Path) -> None:
with path.open("wb") as config_file:
properties.store(config_file, encoding='utf-8')
def activate_eula_file(server_dir: Path) -> bool:
path = server_dir / 'eula.txt'
@@ -35,7 +37,7 @@ def activate_eula_file(server_dir: Path) -> bool:
lines = file.readlines()
for line in lines:
print(f"{line}\n")
print(f"{line}")
print("To activate eula file please read above text. If you agree this license, enter Y [not agree enter N]")
result = str(input("Agree? :"))
@@ -50,9 +52,9 @@ def activate_eula_file(server_dir: Path) -> bool:
continue
file.write(line)
return True
def jar_filename(filename: str | None, default: str) -> str:
if filename:
name = filename
@@ -179,6 +181,25 @@ def get_latest_version_minecraft(release=True):
return ver
def get_specific_version_minecraft_require_java_version(minecraft_version, release=True):
version_list = get_version_list(release=release)
if release:
version_exists = minecraft_version in version_list
else:
version_exists = any(version.get("id") == minecraft_version for version in version_list)
if not version_exists:
raise Exception("Specified Minecraft version does not exist.")
metadata = get_minecraft_version_metadata(minecraft_version)
if not metadata:
raise Exception("Unable to get Minecraft version metadata for {}.\n".format(minecraft_version))
return metadata.get("javaVersion", {}).get("majorVersion", None)
def download_server_jar(minecraft_version: str, build_version: str, destination: Path, filename: str | None = None):
"""
Download server jar (paper server only)
@@ -194,7 +215,8 @@ def download_server_jar(minecraft_version: str, build_version: str, destination:
download_file(url, destination)
return destination
except Exception as e:
raise Exception("Unable to download server jar for version {}\nURL: {}\nError: {}".format(minecraft_version, url, e))
raise Exception(
"Unable to download server jar for version {}\nURL: {}\nError: {}".format(minecraft_version, url, e))
def get_latest_build_of_version(minecraft_version: str) -> str:
@@ -209,6 +231,7 @@ def download_latest_build_paper_jar(minecraft_version: str, destination_dir: Pat
build = get_latest_build_of_version(minecraft_version)
return download_server_jar(minecraft_version, build, destination_dir, filename=filename)
def version_exist_from_paper(minecraft_version: str) -> bool:
try:
get_specific_version_paper_builds(minecraft_version)
@@ -223,14 +246,14 @@ def get_latest_paper_version(release) -> str:
latest_paper_support_ver = None
while latest_paper_support_ver is None:
if len(vers) < index+1:
if len(vers) < index + 1:
raise Exception("No supported Minecraft version available for Paper support.")
if version_exist_from_paper(minecraft_version=vers[index]):
latest_paper_support_ver = vers[index]
break
index+=1
index += 1
return latest_paper_support_ver
@@ -273,3 +296,53 @@ def download_vanilla_server_jar(minecraft_version: str, destination: Path, filen
url,
e,
))
def find_system_java_executables(java_names):
"""
Find system Java executables
:param java_names:
:return:
"""
roots = []
if os.name == "nt":
for env_name in ("ProgramFiles", "ProgramFiles(x86)"):
root = os.environ.get(env_name)
if root:
roots.append(os.path.join(root, "Java"))
elif os.name == "posix":
roots.extend(("/Library/Java/JavaVirtualMachines", "/opt/java", "/usr/lib/jvm", "/usr/local/java"))
found = []
for root in roots:
if not os.path.isdir(root):
continue
for current_root, _, files in os.walk(root):
for java_name in java_names:
if java_name in files and os.path.basename(current_root).lower() == "bin":
found.append(os.path.join(current_root, java_name))
break
return found
def major_version_from_runtime_dir(runtime_dir):
"""
Get major version from target runtime directory
(Only works if this runtime is created by launcher)
:param runtime_dir:
:return:
"""
name = runtime_dir.name
if name.lower().startswith("java_"):
return name.split("_", 1)[1]
info_path = runtime_dir / "java.version.info"
if info_path.exists():
try:
for line in info_path.read_text(encoding="utf-8").splitlines():
if line.strip().startswith("JavaMajorVersion") and "=" in line:
return line.split("=", 1)[1].strip().strip('"').strip("'")
except Exception:
return ""
return ""
+232
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@@ -0,0 +1,232 @@
"""
bk_core
Copyright (c) 2024~2025 Techarerm/TedKai
Copyright (c) 2026 Kitee Contributors. All rights reserved.
"""
import os.path
import textwrap
import requests
azul_packages_api = "https://api.azul.com/metadata/v1/zulu/packages"
java_manifest_url = 'https://launchermeta.mojang.com/v1/products/java-runtime/2ec0cc96c44e5a76b9c8b7c39df7210883d12871/all.json'
def get_java_build_download_url_from_azul(platform_name: str, full_arch: str, java_major_version: str):
full_arch = full_arch.lower()
platform_name = platform_name.lower()
arch_map = {
"arm64": "aarch64",
"i686": "i686",
"amd64": "amd64",
"i386": "i686"
}
platform_map = {
"macos": "macos",
"darwin": "macos",
"windows": "windows",
"linux": "linux"
}
real_arch = arch_map.get(full_arch, full_arch)
platform = platform_map.get(platform_name, platform_name)
version_type_list = ["jre", "jdk"]
jre_url = (
f"/?java_version={java_major_version}&os={platform}&arch={real_arch}&java_package_type=jre&javafx_bundled=true"
f"&release_status=ga&availability_types=CA&certifications=tck&page=1&page_size=100")
full_jre_url = azul_packages_api + jre_url
jdk_url = (f"/?java_version={java_major_version}&os={platform}&arch={real_arch}&java_package_type=jdk"
f"&javafx_bundled=true"
f"&release_status=ga&availability_types=CA&certifications=tck&page=1&page_size=100")
full_jdk_url = azul_packages_api + jdk_url
version_url_list = [full_jre_url, full_jdk_url]
for url, ver_type in zip(version_url_list, version_type_list):
try:
response = requests.get(url)
data = response.json()
java_ver_data = data[0]
download_url = java_ver_data.get("download_url", None)
if download_url is not None:
return True, download_url, ver_type
except Exception as e:
print("[ERROR] Getting support jvm download url failed: ", e)
return False, None, None
return False, None, None
def get_java_version_manifest_data():
# Get java manifest
try:
response = requests.get(java_manifest_url)
if response.status_code == 200:
manifest_data = response.json()
return manifest_data
else:
return None
except Exception as e:
return None
def get_support_java_version(version_data):
"""
:param version_data: Special minecraft version data
:return Status, component, major_version
"""
try:
java_version_info = version_data['javaVersion']
component = java_version_info['component']
major_version = java_version_info['majorVersion']
return True, component, major_version
except KeyError:
return False, None, None
def get_support_java_version_from_java_version_manifest(platform, full_arch):
"""
:return SupportList
"""
platform_map = {
"darwin": "mac-os",
"windows": "windows",
"linux": "linux"
}
architecture_map = {
"amd64": ["x64"],
"i586": ["x86", "i386"],
"x86": ["i386", "x86"],
"arm64": ["arm64"],
"aarch64": ["arm64"]
}
platform_name = platform_map.get(platform.lower(), platform.lower())
architecture_list = architecture_map.get(full_arch.lower(), full_arch.lower())
try:
response = requests.get(java_manifest_url)
except Exception as e:
return False, None
java_manifest_data = response.json()
java_manifest_data_cleaned = {}
organized_manifest_data_list = []
# Get all platform data (except item "gamecore")
for arch_and_platform, support_java_data in java_manifest_data.items():
if arch_and_platform == "gamecore":
continue
java_manifest_data_cleaned.update({arch_and_platform: support_java_data})
# Separate platform name and arch from arch_and_platform
for arch_and_platform, support_java_data in java_manifest_data_cleaned.items():
if arch_and_platform == "mac-os":
# For mac os (x86-64)
java_platform = "mac-os"
java_arch = "amd64"
elif "-" in arch_and_platform:
parts = arch_and_platform.split("-")
java_platform = '-'.join(parts[:-1])
java_arch = parts[-1]
else:
java_platform = arch_and_platform
java_arch = "amd64"
for java_runtime_name, runtime_data in support_java_data.items():
if not java_runtime_name.startswith("java"):
if not java_runtime_name.startswith("jre"):
continue
# Skip some empty data
if len(runtime_data) == 0:
continue
# If the platform and architecture are same, append data to list
if not java_platform.lower() == platform_name:
continue
if java_arch.lower() not in architecture_list:
continue
# Convert data to dict
result = {}
for item in runtime_data:
result.update(item)
organized_manifest_data_list.append(result)
return organized_manifest_data_list
def get_support_java_runtime_version_data(organized_manifest_data_list, major_version):
"""
Warning: Require organized_manifest_data_list
"""
java_version_url = None
for data in organized_manifest_data_list:
name = data.get("version", {}).get("name", None)
url = data.get("manifest", {}).get("url", None)
if name is None:
continue
if name.startswith(str(major_version)):
if url is not None:
java_version_url = url
if java_version_url is not None:
try:
response = requests.get(java_version_url)
data = response.json()
return True, data
except Exception as e:
return False, None
return False, None
def create_java_version_info(java_major_version, java_arch, jvm_runtimes_path):
java_info_data = textwrap.dedent(f"""\
# Java Runtime Info
# This configuration is automatically generated by the BakeLauncher.
# Configuration stores Java for the launcher (Example: major_version, architecture).
# Do NOT edit this file or delete it!
JavaMajorVersion = "{java_major_version}"
Architecture = "{java_arch}"
""")
if not os.path.exists(jvm_runtimes_path):
os.makedirs(jvm_runtimes_path)
java_info_path = os.path.join(jvm_runtimes_path, "java.version.info")
if not os.path.exists(java_info_path):
with open(java_info_path, 'w') as file:
file.write(java_info_data)
def read_java_info(info_file_path, item):
with open(info_file_path, "r") as file:
lines = file.readlines()
for line in lines:
line = line.strip()
if item in line and '=' in line:
data = line.split('=', 1)[1].strip().strip("")
return str(data)
return None
+198
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"""
bk_core
Copyright (c) 2024~2025 Techarerm/TedKai
Copyright (c) 2026 Kitee Contributors. All rights reserved.
"""
import shutil
import os
import platform
import requests
from ..bk_utils.utils import download_file, extract_zip
from ..java.java_info import get_java_build_download_url_from_azul
from ..bk_utils.crypto import verify_checksum
def download_java_file(file_info, file_path, destination_folder):
download_type = "raw"
file_url = file_info["downloads"][download_type]["url"]
full_file_path = os.path.join(destination_folder, file_path)
expected_sha1 = file_info["downloads"][download_type].get("sha1")
directory = os.path.join(destination_folder, os.path.dirname(file_path))
os.makedirs(directory, exist_ok=True)
if os.path.exists(full_file_path) and expected_sha1 and verify_checksum(full_file_path, expected_sha1):
return []
return download_file(
file_url,
full_file_path,
with_verify=True,
sha1=expected_sha1,
)
def download_java_runtime_files(manifest, install_path):
if not os.path.exists(install_path):
return False, "InstallFolderAreNotExist"
files = manifest.get("files", {})
download_tasks = []
for file_path, file_info in files.items():
if file_info.get("type") == "directory":
os.makedirs(os.path.join(install_path, file_path), exist_ok=True)
continue
if "downloads" in file_info:
download_tasks.extend(download_java_file(file_info, file_path, install_path))
return True, download_tasks
def install_azul_build_version_jvm(java_major_version, install_dir, full_architecture, platform_name):
Status, download_url, version_type = get_java_build_download_url_from_azul(platform_name, full_architecture,
java_major_version)
if not Status:
return False, "Get download url failed. Unsupported platform"
tmp = os.path.join(os.path.dirname(install_dir), ".jvm_installer_tmp")
os.makedirs(tmp, exist_ok=True)
jvm_zip_file_path = os.path.join(tmp, f"jvm-azul-{java_major_version}.zip")
if os.path.exists(jvm_zip_file_path):
try:
os.remove(jvm_zip_file_path)
except Exception as e:
return False, "Cannot delete tmp file. ERR: {}".format(e)
jvm_unzip_dest = os.path.join(tmp, f"jvm-azul-{java_major_version}-unzipped")
if os.path.exists(jvm_unzip_dest):
try:
shutil.rmtree(jvm_unzip_dest)
except Exception as e:
return False, "Cannot delete unzip tmp file. ERR: {}".format(e)
if not os.path.exists(jvm_zip_file_path):
try:
_download_file_now(download_url, jvm_zip_file_path)
except Exception as e:
return False, "Download file failed. ERR: {}".format(e)
extract_zip(jvm_zip_file_path, jvm_unzip_dest)
if os.path.exists(install_dir):
try:
shutil.rmtree(install_dir)
except Exception as e:
return False, f"Cleaning install dir failed. ERR: {e}"
if platform_name.lower() == "darwin":
unzip_list = os.listdir(jvm_unzip_dest)
jvm_app_folder_name = unzip_list[0]
home_folder_path = os.path.join(jvm_unzip_dest, jvm_app_folder_name, f"zulu-{java_major_version}.jre",
"Contents", "Home")
if not os.path.isdir(home_folder_path):
home_folder_path = _find_java_home(jvm_unzip_dest)
if home_folder_path is None:
return False, "JAVA_HOME not found in the unzip folder."
else:
unzip_list = os.listdir(jvm_unzip_dest)
home_folder_name = unzip_list[0]
home_folder_path = os.path.join(jvm_unzip_dest, home_folder_name)
if not os.path.isdir(home_folder_path):
home_folder_path = _find_java_home(jvm_unzip_dest)
if home_folder_path is None:
return False, "JAVA_HOME not found in the unzip folder."
install_root_dir = os.path.dirname(install_dir)
home_name = os.path.basename(home_folder_path)
dest_path = os.path.join(install_root_dir, home_name)
try:
shutil.move(home_folder_path, install_root_dir)
except Exception as e:
return False, f"Move home folder to install dir failed. ERR: {e}"
try:
os.rename(dest_path, install_dir)
except Exception as e:
return False, "Rename dest_path to require name failed. ERR: {}".format(e)
return True, None
def _find_java_home(root):
for current_root, _, files in os.walk(root):
executable_names = {"java.exe", "javaw.exe"} if os.name == "nt" else {"java"}
if os.path.basename(current_root).lower() == "bin" and any(name in executable_names for name in files):
return os.path.dirname(current_root)
return None
def find_java_home_in_extracted_runtime(unzip_dir):
candidates = []
for java_name in ("javaw.exe", "java.exe", "java"):
candidates.extend(unzip_dir.rglob(java_name))
for java_path in candidates:
parent = java_path.parent
if parent.name.lower() == "bin":
return parent.parent
return None
def runtime_java_executable(install_dir):
bin_dir = install_dir / "bin"
if os.name == "nt":
javaw = bin_dir / "javaw.exe"
if javaw.exists():
return javaw
return bin_dir / "java.exe"
return bin_dir / "java"
def find_java_runtime_candidates(java_manifest, manifest_platform, java_major_version):
platform_data = java_manifest.get(manifest_platform, {})
candidates = []
for runtime_entries in platform_data.values():
for runtime_entry in runtime_entries:
version_name = str(runtime_entry.get("version", {}).get("name") or "")
if version_name.startswith(str(java_major_version)):
candidates.append(runtime_entry)
return candidates
def mojang_java_platform_key():
system = platform.system().lower()
machine = platform.machine().lower()
if system == "windows":
if "arm" in machine or "aarch64" in machine:
return "windows-arm64"
if "64" in machine or "amd64" in machine:
return "windows-x64"
return "windows-x86"
if system == "darwin":
return "mac-os-arm64" if "arm" in machine or "aarch64" in machine else "mac-os"
if system == "linux":
return "linux-arm64" if "arm" in machine or "aarch64" in machine else "linux"
return None
def _download_file_now(url, dest_path):
os.makedirs(os.path.dirname(dest_path), exist_ok=True)
response = requests.get(url, stream=True, timeout=30)
response.raise_for_status()
with open(dest_path, "wb") as file:
for chunk in response.iter_content(chunk_size=1024 * 128):
if chunk:
file.write(chunk)