103 lines
3.6 KiB
Python
103 lines
3.6 KiB
Python
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"""
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Source are from KiteeLauncher.
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"""
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import os
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import re
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import subprocess
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import tempfile
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def check_java_executable_and_major_version(java_executable_path):
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# test java runtimes are executable
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try:
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subprocess.run([java_executable_path], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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return True, None
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except PermissionError:
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return False, "Could not execute the Java executable. Permission denied."
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except Exception as e:
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return False, "Unknown error occurred while executing the Java executable. {}".format(e)
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def get_java_version_by_execute(java_executable_path):
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# test java runtimes are executable
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# executable it
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try:
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result = subprocess.run([java_executable_path, '-version'], stderr=subprocess.PIPE, stdout=subprocess.PIPE,
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text=True)
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except PermissionError:
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return False, None, "Could not execute the Java executable. Permission denied."
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except Exception as e:
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return False, None, "Unknown error occurred while executing the Java executable. {}".format(e)
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# Get output
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output = result.stderr
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# Get major version (e.g., "21.0.3") and full version in the output
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match = re.search(r'java version "(\d+)(?:\.(\d+))?', output)
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# Is for installation by launcher runtimes (Because is openjdk not oracle java....)
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if not match:
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match = re.search(r'openjdk version "(\d+)(?:\.(\d+))?', output)
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if not match:
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return False, None, "Unsupported Java runtime build or current path is not a valid java executable."
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try:
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major_version = match.group(1)
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# Special case for Java 8 where we need to use the second part (8) instead of 1
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if major_version == "1" and match.group(2):
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major_version = match.group(2)
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return True, major_version, None
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except IndexError:
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return False, None, "The target Java runtime version is too old or is not supported by this method."
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def convert_java_version_tuple_to_major_version(java_version_tuple):
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try:
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_, major_version, *_ = java_version_tuple.split(".")
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return True, major_version
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except ValueError:
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return False, None
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def get_java_version_by_checkmyduke(java_executable_path):
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checkmyduke_jar = os.path.join("jar_files", "CheckMyDuke.jar")
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if not os.path.exists(checkmyduke_jar):
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return False, None, "CheckMyDuke.jar not found"
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# executable it
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try:
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result = subprocess.run([java_executable_path, '-jar', checkmyduke_jar], stderr=subprocess.PIPE, stdout=subprocess.PIPE,
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text=True)
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except PermissionError:
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return False, None, "Could not execute the Java executable. Permission denied."
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except Exception as e:
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return False, None, "Unknown error occurred while executing the Java executable. {}".format(e)\
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status, major_version = convert_java_version_tuple_to_major_version(result.stdout.strip())
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if status:
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return True, major_version, None
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else:
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return False, None, "Unsupported Java runtime build or current path is not a valid java executable."
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def search_available_java_runtimes_in_directory(target_directory, java_executable_name="java.exe" if os.name == "nt" else "java"):
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"""
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Using this function may take ~1min to search for available Java executable files.
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"""
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found_java_runtimes = []
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for root, dirs, files in os.walk(target_directory):
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for file in files:
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if file == java_executable_name:
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found_java_runtimes.append(os.path.join(root, file))
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return found_java_runtimes
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