Initial commit

.gitignore

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+known_hosts

README.md

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+# Cross-Py-Build
+
+Cross-Py-Build is a simple remote build tool for compiling Python projects with PyInstaller on different platforms.

agent_manager.py

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+import argparse
+import concurrent.futures
+import os
+import socket
+import tempfile
+import time
+import zipfile
+from datetime import datetime, timedelta
+
+from packaging.version import Version
+from tabulate import tabulate
+
+import requests
+
+from build_agent import build_agent_version
+from zeroconf_server import ZeroconfServer
+
+def find_server_ips():
+    ZeroconfServer.configure("_crosspybuilder._tcp.local.", socket.gethostname(), 9001)
+    hostnames = []
+    try:
+        ZeroconfServer.start(listen_only=True)
+        time.sleep(.3) # give it time to find network
+        hostnames = ZeroconfServer.found_ip_addresses()
+    except KeyboardInterrupt:
+        pass
+    finally:
+        ZeroconfServer.stop()
+
+    # get known hosts
+    with open("known_hosts", "r") as file:
+        lines = file.readlines()
+
+    lines = [line.split(':')[0].strip() for line in lines]
+    hostnames.extend(lines)
+
+    return hostnames
+
+def get_all_servers_status():
+    table_data = []
+    server_ips = find_server_ips()
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        results = executor.map(get_worker_status, server_ips)  # Runs in parallel
+    table_data.extend(results)
+    return table_data
+
+def get_worker_status(hostname):
+    """Fetch worker status from the given hostname."""
+    try:
+        response = requests.get(f"http://{hostname}:9001/status", timeout=5)
+        status = response.json()
+        if status['hostname'] != hostname and status['ip'] != hostname:
+            status['ip'] = socket.gethostbyname(hostname)
+        return status
+    except requests.exceptions.RequestException:
+        return {"hostname": hostname, "status": "offline"}
+
+
+def zip_project(source_dir, output_zip):
+    """Zips the given directory."""
+    excluded_dirs = {"venv", ".venv", "dist", "build"}
+    with zipfile.ZipFile(output_zip, 'w', zipfile.ZIP_DEFLATED) as zipf:
+        for root, dirs, files in os.walk(source_dir):
+
+            dirs[:] = [d for d in dirs if d.lower() not in excluded_dirs]
+            for file in files:
+                file_path = os.path.join(root, file)
+                zipf.write(file_path, os.path.relpath(file_path, source_dir))
+
+
+def send_build_request(zip_file, server_ip, download_after=False):
+    """Uploads the zip file to the given server."""
+    upload_url = f"http://{server_ip}:9001/upload"
+    print(f"Submitting build request to URL: {upload_url}")
+    print("Please wait. This may take a few minutes...")
+    with open(zip_file, 'rb') as f:
+        response = requests.post(upload_url, files={"file": f})
+
+    if response.status_code == 200:
+        response_data = response.json()
+        print(f"Build successful. ID: {response_data['id']} Hostname: {response_data['hostname']} OS: {response_data['os']} CPU: {response_data['cpu']} Spec files: {len(response_data['spec_files'])} - Elapsed time: {response_data['duration']}" )
+        if download_after:
+            download_url = f"http://{server_ip}:9001/download/{response_data.get('id')}"
+            try:
+                save_name = f"{os.path.splitext(os.path.basename(zip_file))[0]}-{response_data['os'].lower()}-{response_data['cpu'].lower()}.zip"
+                download_zip(download_url, save_name=save_name)
+            except Exception as e:
+                print(f"Error downloading zip: {e}")
+    else:
+        print("Upload failed:", response.status_code, response.text)
+
+def download_zip(url, save_name, save_dir="."):
+    """Download a ZIP file from a URL and save it with its original filename."""
+    response = requests.get(url, stream=True)
+    response.raise_for_status()  # Raise an error if request fails
+
+    save_path = os.path.join(save_dir, save_name)
+    with open(save_path, "wb") as file:
+        for chunk in response.iter_content(chunk_size=8192):  # Download in chunks
+            file.write(chunk)
+
+    print(f"Saved binaries to file: {save_path}")
+    return save_path
+
+
+def select_server(servers, cpu=None, os_name=None):
+    """Selects a build server based on CPU architecture and OS filters."""
+    available = [s for s in servers if s["status"] == "ready"]
+
+    if cpu:
+        available = [s for s in available if cpu.lower() in s["cpu"].lower()]
+    if os_name:
+        available = [s for s in available if os_name.lower() in s["os"].lower()]
+    return available[0] if available else None  # Return first matching server or None
+
+def process_new_job(args, server_data):
+    available_servers = [s for s in server_data if s["status"] == "ready"]
+
+    if args.cpu:
+        available_servers = [s for s in available_servers if args.cpu.lower() in s["cpu"].lower()]
+    if args.os:
+        available_servers = [s for s in available_servers if args.os.lower() in s["os"].lower()]
+
+    if not available_servers:
+        print("No available servers matching the criteria.")
+        return
+
+    # Keep only unique servers
+    unique_servers = {}
+    for server in available_servers:
+        key = (server["cpu"], server["os"])
+        if key not in unique_servers:
+            unique_servers[key] = server
+
+    available_servers = list(unique_servers.values())
+    print(f"Found {len(available_servers)} servers available to build")
+    print(tabulate(available_servers, headers="keys", tablefmt="grid"))
+
+    tmp_dir = tempfile.gettempdir()
+    zip_file = os.path.join(tmp_dir, f"{os.path.basename(args.path)}.zip")
+    zip_project(args.path, zip_file)
+    print(f"Zipped {args.path} to {zip_file}")
+
+    # Start builds on all matching servers
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        print("Submitting builds to:")
+        for server in available_servers:
+            print(f"\t{server['hostname']} - {server['os']} - {server['cpu']}")
+        futures = {executor.submit(send_build_request, zip_file, server["ip"], args.download): server for server in
+                   available_servers}
+
+    # Collect results
+    for future in concurrent.futures.as_completed(futures):
+        server = futures[future]
+        try:
+            response = future.result()  # Get the response
+        except Exception as e:
+            print(f"Build failed on {server['hostname']}: {e}")
+
+    try:
+        os.remove(zip_file)
+    except Exception as e:
+        print(f"Error removing zip file: {e}")
+
+def delete_cache(server_data):
+    available_servers = [s for s in server_data if s["status"] == "ready"]
+    print(f"Deleting cache in from all available servers ({len(available_servers)})")
+    for server in available_servers:
+        try:
+            response = requests.get(f"http://{server['ip']}:9001/delete_cache")
+            response.raise_for_status()
+            print(f"Cache cleared on {server['hostname']}")
+        except Exception as e:
+            print(f"Error deleting cache on {server['hostname']}: {e}")
+
+
+def update_worker(server):
+    try:
+        print(f"Updating {server['hostname']} from {server.get('agent_version')} => {build_agent_version}")
+
+        with open("build_agent.py", "rb") as file1, open("requirements.txt", "rb") as file2:
+            update_files = {
+                "file1": open("build_agent.py", "rb"),
+                "file2": open("requirements.txt", "rb")
+            }
+            response = requests.post(f"http://{server['ip']}:9001/update", files=update_files)
+            response.raise_for_status()
+
+        response_json = response.json()
+        if response_json.get('updated_files') and not response_json.get('error_files'):
+            try:
+                requests.get(f"http://{server['ip']}:9001/restart", timeout=2)
+            except requests.exceptions.ConnectionError:
+                pass
+            return server
+        else:
+            print(f"Error updating {server['hostname']}. Errors: {response_json.get('error_files')} - Updated: {response_json.get('updated_files')}")
+    except Exception as e:
+        print(f"Unhandled error updating {server['hostname']}: {e}")
+    return None
+
+def update_build_workers(server_data):
+    available_workers = [s for s in server_data if s["status"] == "ready"]
+    workers_to_update = [x for x in available_workers if Version(x.get('agent_version')) < Version(build_agent_version)]
+
+    if not workers_to_update:
+        print(f"All {len(available_workers)} workers up to date")
+        return
+
+    print(f"Updating workers on all available servers ({len(workers_to_update)}) to {build_agent_version}")
+    updated_servers = []
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        futures = {executor.submit(update_worker, server): server for server in workers_to_update}
+        for future in concurrent.futures.as_completed(futures):
+            server = future.result()
+            if server:
+                updated_servers.append(server)
+
+    if updated_servers:
+        print("Waiting for servers to restart...")
+        unverified_servers = {server["ip"]: server for server in updated_servers}
+        end_time = datetime.now() + timedelta(seconds=30)
+        while unverified_servers and datetime.now() < end_time:
+            for server_ip in list(unverified_servers.keys()):  # Iterate over a copy to avoid modification issues
+                try:
+                    response = requests.get(f"http://{server_ip}:9001/status", timeout=2)
+                    response.raise_for_status()
+                    server_info = unverified_servers[server_ip]  # Get full server details
+                    agent_version = response.json().get('agent_version')
+                    if agent_version == build_agent_version:
+                        print(f"Agent on {server_info['hostname']} successfully upgraded to {build_agent_version}")
+                    else:
+                        print(f"Agent on {server_info['hostname']} failed to upgrade. Still on version {agent_version}")
+                    unverified_servers.pop(server_ip)
+                except requests.exceptions.ConnectionError:
+                    pass  # Server is still restarting
+            if unverified_servers:
+                time.sleep(1)  # Short delay before retrying to avoid spamming requests
+        if unverified_servers:
+            print("Some servers did not restart in time:", list(unverified_servers.keys()))
+
+        print("Update complete")
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Build agent manager for cross-py-builder")
+    parser.add_argument("-status", action="store_true", help="Get status of available servers")
+    parser.add_argument("-path", type=str, help="Path to the project")
+    parser.add_argument("-cpu", type=str, help="CPU architecture")
+    parser.add_argument("-os", type=str, help="Operating system")
+    parser.add_argument("-d", '--download', action="store_true", help="Download after build")
+    parser.add_argument("-delete-cache",  action="store_true", help="Delete cache")
+    parser.add_argument("-update-all",  action="store_true", help="Update build agent")
+    parser.add_argument("-restart",  type=str, help="Hostname to restart")
+    parser.add_argument("-restart-all",  action="store_true", help="Restart all agents")
+    parser.add_argument("-shutdown",  type=str, help="Hostname to shutdown")
+    # parser.add_argument("-worker",  type=str, help="Update Agents")
+    args = parser.parse_args()
+
+    if args.status:
+        print(tabulate(get_all_servers_status(), headers="keys", tablefmt="grid"))
+        return
+    elif args.restart:
+        restart_agent(args.restart)
+    elif args.restart_all:
+        print("Restarting all agents...")
+        for server_ip in find_server_ips():
+            restart_agent(server_ip)
+    elif args.shutdown:
+        print(f"Shutting down hostname: {args.shutdown}")
+        try:
+            requests.get(f"http://{args.shutdown}:9001/shutdown")
+        except requests.exceptions.ConnectionError:
+            pass
+    elif args.delete_cache:
+        delete_cache(get_all_servers_status())
+    elif args.path:
+        process_new_job(args, get_all_servers_status())
+    elif args.update_all:
+        update_build_workers(get_all_servers_status())
+    else:
+        print("No path given!")
+
+
+def restart_agent(hostname):
+    print(f"Restarting agent: {hostname}")
+    try:
+        requests.get(f"http://{hostname}:9001/restart")
+    except requests.exceptions.ConnectionError:
+        pass
+
+
+if __name__ == "__main__":
+    main()

build_agent.py

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+import datetime
+import signal
+import socket
+import sys
+import tempfile
+import time
+
+from flask import Flask, request, jsonify, send_file
+import os
+import zipfile
+import subprocess
+import glob
+import shutil
+import uuid
+import platform
+from zeroconf_server import ZeroconfServer
+from version import APP_VERSION, APP_NAME
+
+build_agent_version = "0.1.23"
+
+app = Flask(__name__)
+SCRIPT_PATH = os.path.basename(__file__)
+LOCAL_DIR = os.path.dirname(__file__)
+BUILD_DIR = "pybuild-data"
+TMP_DIR = tempfile.gettempdir()
+system_status = {"status": "ready", "running_job": None}
+
+def is_windows():
+    return platform.system().lower() == "windows"
+
+@app.route('/update', methods=['POST'])
+def update_files():
+    if not request.files:
+        return {"error": "No files"}, 400
+
+    print("Updating build agent...")
+    system_status['status'] = "updating"
+    requirements_path = os.path.join(LOCAL_DIR, "requirements.txt")
+    needs_install_requirements = False
+    updated_files = []
+    error_files = []
+    for key in request.files:
+        uploaded_file = request.files[key]
+        if uploaded_file.filename:
+            original_filename = uploaded_file.filename
+            temp_save_path = os.path.join(LOCAL_DIR, f"{original_filename}.tmp")
+            uploaded_file.save(temp_save_path)
+            if os.path.getsize(temp_save_path):
+                try:
+                    backup_path = os.path.join(LOCAL_DIR, original_filename + ".old")
+                    local_file_path = os.path.join(LOCAL_DIR, original_filename)
+                    os.rename(local_file_path, backup_path)
+                    shutil.move(temp_save_path, local_file_path)
+                    os.remove(backup_path)
+                    needs_install_requirements |= (requirements_path == local_file_path)
+                    updated_files.append(original_filename)
+                except Exception as e:
+                    print(f"Exception updating file ({original_filename}): {e}")
+                    error_files.append(original_filename)
+            else:
+                print(f"Invalid size for {temp_save_path}!")
+                error_files.append(original_filename)
+                os.remove(temp_save_path)
+
+    if os.path.exists(requirements_path) and needs_install_requirements:
+        print(f"\nInstalling Required Packages...")
+        python_exec = "python" if is_windows() else "python3"
+        subprocess.run([python_exec, "-m", "pip", "install", "--prefer-binary", "-r", requirements_path],
+                       check=True)
+
+    print("Update complete")
+
+    return jsonify({'updated_files': updated_files, 'error_files': error_files}), 200 if not error_files else 500
+
+@app.get("/restart")
+def restart():
+    system_status['status'] = "restarting"
+    ZeroconfServer.stop()
+    print("=== Restarting ===")
+    if os.name == "nt":  # Windows
+        DETACHED_PROCESS = 0x00000008
+        CREATE_NEW_PROCESS_GROUP = 0x00000200
+        # Fix hanging issue using STARTUPINFO
+        si = subprocess.STARTUPINFO()
+        si.dwFlags |= subprocess.STARTF_USESHOWWINDOW  # Prevents extra console window pop-up
+        subprocess.Popen(
+            [sys.executable, SCRIPT_PATH],
+            creationflags=DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP,
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+            shell=True
+        )
+    else:  # Linux/macOS
+        subprocess.Popen(
+            [sys.executable, SCRIPT_PATH],
+            stdout=sys.stdout,
+            stderr=sys.stderr,
+            start_new_session=True
+        )
+    try:
+        return jsonify({"message": "=== Restarting ==="}), 200
+    finally:
+        os.kill(os.getpid(), signal.SIGTERM)
+
+@app.get("/shutdown")
+def shutdown():
+    try:
+        print("=== SHUTTING DOWN ===")
+        system_status['status'] = "shutting_down"
+        return jsonify({"message": "Shutting down"}), 200
+    finally:
+        time.sleep(1)
+        os.kill(os.getpid(), signal.SIGTERM)
+
+@app.get("/")
+def status_page():
+    version = platform.mac_ver()[0] if platform.mac_ver() else platform.version()
+    hostname = socket.gethostname()
+    return (f"{APP_NAME} - Build Agent {build_agent_version} - \n"
+            f"{platform.system()} | {cpu_arch()} | {version} | {hostname} | {ZeroconfServer.get_local_ip()}")
+
+@app.get("/status")
+def status():
+    def get_directory_size(directory):
+        total_size = 0
+        for dirpath, _, filenames in os.walk(directory):  # Recursively go through files
+            for filename in filenames:
+                filepath = os.path.join(dirpath, filename)
+                if os.path.isfile(filepath):  # Ensure it's a file, not a broken symlink
+                    total_size += os.path.getsize(filepath)
+        return total_size  # Size in bytes
+
+    def format_size(size_in_bytes):
+        for unit in ['B', 'KB', 'MB', 'GB', 'TB']:
+            if size_in_bytes < 1024:
+                return f"{size_in_bytes:.2f} {unit}"
+            size_in_bytes /= 1024
+
+    hostname = socket.gethostname()
+    return jsonify({"status": system_status['status'], "agent_version": build_agent_version, "os": platform.system(), "cpu": cpu_arch(),
+                    "python_version": platform.python_version(), "hostname": hostname, "ip": ZeroconfServer.get_local_ip(),
+                    "running_job": system_status['running_job'], "job_cache": len(job_cache()), "job_cache_size": format_size(get_directory_size(TMP_DIR))})
+
+
+@app.route('/upload', methods=['POST'])
+def upload_project():
+    try:
+        start_time = datetime.datetime.now()
+        if 'file' not in request.files:
+            return jsonify({"error": "No file uploaded"}), 400
+
+        print(f"\n========== Processing Incoming Project ==========")
+        job_id = str(uuid.uuid4()).split('-')[-1]
+        working_dir = os.path.join(TMP_DIR, BUILD_DIR, job_id)
+
+        file = request.files['file']
+        zip_path = os.path.join(working_dir, "source.zip")
+
+        # Save ZIP file
+        os.makedirs(working_dir, exist_ok=True)
+        file.save(zip_path)
+
+        # Extract ZIP
+        with zipfile.ZipFile(zip_path, 'r') as zip_ref:
+            print(f"Extracting uploaded project zip...")
+            zip_ref.extractall(working_dir)
+
+        return install_and_build(working_dir, job_id, start_time)
+    except Exception as e:
+        print(f"Uncaught error processing job: {e}")
+        jsonify({"error": f"Uncaught error processing job: {e}"}), 500
+
+def install_and_build(project_path, job_id, start_time):
+
+    # Find the PyInstaller spec file
+    spec_files = glob.glob(os.path.join(project_path, "*.spec"))
+    if not spec_files:
+        return jsonify({"error": "No .spec files found"}), 400
+
+    print(f"Starting new build job - {len(spec_files)} spec files found")
+    system_status['status'] = "working"
+    system_status['running_job'] = os.path.basename(project_path)
+
+    # Set up virtual environment
+    venv_path = os.path.join(project_path, "venv")
+    try:
+        print(f"\n========== Configuring Virtual Environment ({venv_path}) ==========")
+        python_exec = "python" if is_windows() else "python3"
+        subprocess.run([python_exec, "-m", "venv", venv_path], check=True)
+
+        py_exec = os.path.join(venv_path, "bin", "python") if os.name != "nt" else os.path.join(venv_path, "Scripts",
+                                                                                                "python.exe")
+        print(f"Virtual environment configured")
+    except Exception as e:
+        print(f"Error setting up virtual environment: {e}")
+        system_status['status'] = "ready"
+        system_status['running_job'] = None
+        os.rmdir(project_path)
+        return jsonify({"error": f"Error setting up virtual environment: {e}"}), 500
+
+    # Install requirements
+    try:
+        subprocess.run([py_exec, "-m", "pip", "install", "--upgrade", "pip"], check=True)
+        subprocess.run([py_exec, "-m", "pip", "install", "pyinstaller", "pyinstaller_versionfile", "--prefer-binary"], check=True)
+        requirements_path = os.path.join(project_path, "requirements.txt")
+        if os.path.exists(requirements_path):
+            print(f"\n========== Installing Required Packages ==========")
+            subprocess.run([py_exec, "-m", "pip", "install", "--prefer-binary", "-r", requirements_path],
+                           check=True)
+    except Exception as e:
+        print(f"Error installing requirements: {e}")
+        system_status['status'] = "ready"
+        system_status['running_job'] = None
+        os.rmdir(project_path)
+        return jsonify({"error": f"Error installing requirements: {e}"}), 500
+
+    results = {}
+    try:
+        for index, spec_file in enumerate(spec_files):
+            # Compile with PyInstaller
+            print(f"\n========== Compiling spec file {index+1} of {len(spec_files)} - {spec_file} ==========")
+            simple_name = os.path.splitext(os.path.basename(spec_file))[0]
+            os.chdir(project_path)
+            dist_path = os.path.join(project_path, "dist")
+            work_path = os.path.join(project_path, "build")
+            log_file_path = os.path.join(project_path, f"build-{simple_name}.log")
+            print(f"Log file saved to: {log_file_path}")
+
+            with open(log_file_path, "w") as log_file:
+                process = subprocess.Popen(
+                    [py_exec, "-m", "PyInstaller", spec_file, "--distpath", dist_path, "--workpath", work_path],
+                    text=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+                )
+
+                for line in process.stdout:
+                    print(line, end="")  # Print to console
+                    log_file.write(line)  # Save to log file
+                    log_file.flush()  # Ensure real-time writing
+
+                process.wait()  # Wait for the process to complete
+            print(f"\n========== Compilation of spec file {spec_file} complete ==========\n")
+    except Exception as e:
+        print(f"Error compiling project: {e}")
+        system_status['status'] = "ready"
+        system_status['running_job'] = None
+        os.remove(project_path)
+        return jsonify({"error": f"Error compiling project: {e}"}), 500
+
+    dist_path = os.path.join(project_path, "dist")
+    system_status['status'] = "ready"
+    system_status['running_job'] = None
+    return jsonify({
+        "id": job_id,
+        "message": "Build completed",
+        "spec_files": spec_files,
+        "output_folder": dist_path,
+        "duration": str(datetime.datetime.now() - start_time),
+        "cpu": cpu_arch(),
+        "os": platform.system(),
+        "hostname": socket.gethostname()
+    }), 200
+
+def cpu_arch():
+    intel64 = 'x64'
+    arm64 = 'arm64'
+    replacers =[
+        ('aarch64', arm64),
+        ('amd64', intel64),
+        ('x86_64', intel64)
+    ]
+    arch = platform.machine().lower()
+    for (x, y) in replacers:
+        arch = arch.replace(x, y)
+    return arch
+
+@app.route('/download/<job_id>', methods=['GET'])
+def download_binaries(job_id):
+    """Handles downloading the compiled PyInstaller binaries for a given job."""
+    try:
+        # Locate the build directory
+        job_path = os.path.join(TMP_DIR, BUILD_DIR, job_id)
+        dist_path = os.path.join(job_path, "dist")
+
+        if not os.path.exists(dist_path):
+            return jsonify({"error": f"No binaries found for ID: {job_id}"}), 404
+
+        # Create a temporary zip file
+        tmp_dir = tempfile.gettempdir()
+        zip_path = os.path.join(tmp_dir, f"{job_id}_binaries.zip")
+
+        with zipfile.ZipFile(zip_path, 'w', zipfile.ZIP_DEFLATED) as zipf:
+            for root, _, files in os.walk(dist_path):
+                for file in files:
+                    file_path = os.path.join(root, file)
+                    arcname = os.path.relpath(file_path, dist_path)  # Keep correct relative paths
+                    zipf.write(file_path, arcname)
+
+        print(f"Created zip file for job {job_id}: {zip_path}")
+        return send_file(zip_path, as_attachment=True, download_name=f"{job_id}_binaries.zip")
+
+    except Exception as e:
+        print(f"Error processing download: {e}")
+        return jsonify({"error": f"Failed to process download: {e}"}), 500
+
+
+@app.route('/delete/<job_id>', methods=['GET'])
+def delete_project(job_id):
+    job_path = os.path.join(TMP_DIR, BUILD_DIR, job_id)
+
+    if not os.path.exists(job_path):
+        return jsonify({"error": f"No project found for ID: {job_id}"}), 404
+    try:
+        shutil.rmtree(job_path)
+        print(f"Deleted: {job_path}")
+    except FileNotFoundError as e:
+        return jsonify({"error": f"No project path found: {e}"}), 404
+    except PermissionError as e:
+        return jsonify({"error": f"Permission denied: {e}"}), 403
+    except Exception as e:
+        return jsonify({"error": f"Unknown error: {e}"}), 500
+    return "deleted", 200
+
+def job_cache():
+    try:
+        job_ids = os.listdir(os.path.join(TMP_DIR, BUILD_DIR))
+    except Exception:
+        return []
+    return job_ids
+
+
+@app.route('/delete_cache')
+def delete_cache():
+    print(f"Deleting cache - Currently holding {len(job_cache())} jobs in cache")
+    build_path = os.path.join(TMP_DIR, BUILD_DIR)
+    try:
+        shutil.rmtree(build_path)
+        os.makedirs(build_path, exist_ok=True)
+    except Exception as e:
+        print(f"Error deleting {build_path}: {e}")
+    return jsonify(job_cache()), 200
+
+
+def is_another_instance_running():
+    if os.name == "nt":  # Windows
+        cmd = [
+            "powershell",
+            "-Command",
+            "Get-WmiObject Win32_Process | Where-Object { $_.CommandLine -match 'python' } | Select-Object ProcessId, CommandLine"
+        ]
+        minimum_count = 1
+    else:
+        cmd = ["pgrep", "-fl", " "]
+        minimum_count = 0
+    try:
+        output = subprocess.check_output(cmd, text=True)
+        running_versions = []
+        for line in output.splitlines():
+            if SCRIPT_PATH in line and str(os.getpid()) not in line:
+                running_versions.append(line)
+        return len(running_versions) > minimum_count
+    except subprocess.CalledProcessError:
+        return False
+
+if __name__ == "__main__":
+
+    had_previous_instances = False
+    while is_another_instance_running():
+        had_previous_instances = True
+        print("Another instance is running. Waiting until it exits.")
+        time.sleep(1)
+
+    os.system('cls' if os.name == 'nt' else 'clear')
+    print(f"===== {APP_NAME} {APP_VERSION} Build Agent (v{build_agent_version}) =====")
+    ZeroconfServer.configure("_crosspybuilder._tcp.local.", socket.gethostname(), 9001)
+    try:
+        ZeroconfServer.start()
+        app.run(host="0.0.0.0", port=9001, threaded=True)
+
+    except KeyboardInterrupt:
+        pass
+    finally:
+        ZeroconfServer.stop()

requirements.txt

@@ -0,0 +1,5 @@
+Flask~=3.1.0
+requests~=2.32.3
+tabulate~=0.9.0
+zeroconf~=0.145.1
+packaging~=24.2

version.py

@@ -0,0 +1,2 @@
+APP_NAME = "cross-py-builder"
+APP_VERSION = "1.0.0"

zeroconf_server.py

@@ -0,0 +1,137 @@
+import logging
+import socket
+
+from zeroconf import Zeroconf, ServiceInfo, ServiceBrowser, ServiceStateChange, NonUniqueNameException, \
+    NotRunningException
+
+logger = logging.getLogger()
+
+
+class ZeroconfServer:
+    service_type = None
+    server_name = None
+    server_port = None
+    server_ip = None
+    zeroconf = Zeroconf()
+    service_info = None
+    client_cache = {}
+    properties = {}
+
+    @staticmethod
+    def get_local_ip():
+        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+        s.connect(("8.8.8.8", 80))
+        local_ip = s.getsockname()[0]
+        s.close()
+        return local_ip
+
+    @classmethod
+    def configure(cls, service_type, server_name, server_port):
+        cls.service_type = service_type
+        cls.server_name = server_name
+        cls.server_port = server_port
+        try:  # Stop any previously running instances
+            ip = cls.get_local_ip()
+        except socket.gaierror:
+            cls.stop()
+
+    @classmethod
+    def start(cls, listen_only=False):
+        if not cls.service_type:
+            raise RuntimeError("The 'configure' method must be run before starting the zeroconf server")
+        logger.debug("Starting zeroconf service")
+        if not listen_only:
+            cls._register_service()
+        cls._browse_services()
+
+    @classmethod
+    def stop(cls):
+        logger.debug("Stopping zeroconf service")
+        cls._unregister_service()
+        cls.zeroconf.close()
+
+    @classmethod
+    def _register_service(cls):
+        try:
+
+            info = ServiceInfo(
+                cls.service_type,
+                f"{cls.server_name}.{cls.service_type}",
+                addresses=[socket.inet_aton(cls.get_local_ip())],
+                port=cls.server_port,
+                properties=cls.properties,
+            )
+
+            cls.service_info = info
+            cls.zeroconf.register_service(info)
+            print(f"Registered zeroconf service: {cls.service_info.name}")
+        except (NonUniqueNameException, socket.gaierror) as e:
+            logger.error(f"Error establishing zeroconf: {e}")
+
+    @classmethod
+    def _unregister_service(cls):
+        if cls.service_info:
+            cls.zeroconf.unregister_service(cls.service_info)
+            print(f"Unregistered zeroconf service: {cls.service_info.name}")
+            cls.service_info = None
+
+    @classmethod
+    def _browse_services(cls):
+        browser = ServiceBrowser(cls.zeroconf, cls.service_type, [cls._on_service_discovered])
+        browser.is_alive()
+
+    @classmethod
+    def _on_service_discovered(cls, zeroconf, service_type, name, state_change):
+        try:
+            info = zeroconf.get_service_info(service_type, name)
+            hostname = name.split(f'.{cls.service_type}')[0]
+            logger.debug(f"Zeroconf: {hostname} {state_change}")
+            if service_type == cls.service_type:
+                if state_change == ServiceStateChange.Added or state_change == ServiceStateChange.Updated:
+                    cls.client_cache[hostname] = info
+                else:
+                    cls.client_cache.pop(hostname)
+                # pub.sendMessage('zeroconf_state_change', hostname=hostname, state_change=state_change)
+        except NotRunningException:
+            pass
+
+    @classmethod
+    def found_hostnames(cls):
+        local_hostname = socket.gethostname()
+
+        def sort_key(hostname):
+            # Return 0 if it's the local hostname so it comes first, else return 1
+            return False if hostname == local_hostname else True
+
+        # Sort the list with the local hostname first
+        sorted_hostnames = sorted(cls.client_cache.keys(), key=sort_key)
+        return sorted_hostnames
+
+    @classmethod
+    def found_ip_addresses(cls):
+        ip_addresses = []
+        for cache in cls.client_cache.values():
+            ip_addresses.append(socket.inet_ntoa(cache.addresses[0]))
+        return ip_addresses
+
+    @classmethod
+    def get_hostname_properties(cls, hostname):
+        server_info = cls.client_cache.get(hostname).properties
+        decoded_server_info = {key.decode('utf-8'): value.decode('utf-8') for key, value in server_info.items()}
+        return decoded_server_info
+
+
+# Example usage:
+if __name__ == "__main__":
+    import time
+
+    logging.basicConfig(level=logging.DEBUG)
+    ZeroconfServer.configure("_zordon._tcp.local.", "foobar.local", 8080)
+    try:
+        ZeroconfServer.start()
+        while True:
+            time.sleep(0.1)
+    except KeyboardInterrupt:
+        pass
+    finally:
+        ZeroconfServer.stop()