Ümit Tunç
109 lines
3.7 KiB
Python
109 lines
3.7 KiB
Python
import os
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import sys
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import argparse
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import subprocess
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import venv
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# Force line buffering
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sys.stdout.reconfigure(line_buffering=True)
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def run_command(command, description, required=True):
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print(f"[STATUS] {description}...")
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try:
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process = subprocess.Popen(
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command,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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text=True,
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shell=True,
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bufsize=1
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)
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for line in process.stdout:
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line_str = line.strip()
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if "Downloading" in line_str or "Installing" in line_str:
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print(f"[STATUS] {line_str}")
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elif line_str:
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print(f"[INFO] {line_str}")
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process.wait()
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if process.returncode != 0:
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print(f"[ERROR] {description} failed (exit code {process.returncode})", file=sys.stderr)
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if required:
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return False
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return True
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except Exception as e:
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print(f"[ERROR] Exception during {description}: {str(e)}", file=sys.stderr)
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return not required
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def verify_install(python_path):
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print("[STATUS] Verifying PyTorch installation...")
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verify_cmd = (
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f'"{python_path}" -c "import torch; import transformers; import PIL; '
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f'print(f\\"torch={{torch.__version__}}\\")"'
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)
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return run_command(verify_cmd, "Verifying installed packages", required=True)
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--data-dir', help='Writable directory for .venv (used by packaged app builds)')
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args = parser.parse_args()
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backend_dir = os.path.dirname(os.path.abspath(__file__))
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base_dir = os.path.abspath(args.data_dir) if args.data_dir else os.path.dirname(backend_dir)
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venv_dir = os.path.join(base_dir, ".venv")
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requirements_path = os.path.join(backend_dir, "requirements.txt")
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if not os.path.exists(venv_dir):
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print("[STATUS] Creating Python virtual environment...")
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try:
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venv.create(venv_dir, with_pip=True)
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print("[STATUS] Virtual environment successfully created.")
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except Exception as e:
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print(f"[ERROR] Failed to create virtual environment: {str(e)}", file=sys.stderr)
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sys.exit(1)
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else:
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print("[STATUS] Virtual environment already exists.")
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if os.name == 'nt':
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python_path = os.path.join(venv_dir, "Scripts", "python.exe")
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else:
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python_path = os.path.join(venv_dir, "bin", "python")
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if not os.path.exists(python_path):
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print("[ERROR] Python executable not found inside virtual environment!", file=sys.stderr)
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sys.exit(1)
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run_command(
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f'"{python_path}" -m pip install --upgrade pip',
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"Upgrading pip to latest version",
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required=False
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)
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torch_index = "https://download.pytorch.org/whl/cpu"
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torch_cmd = (
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f'"{python_path}" -m pip install torch torchvision '
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f'--index-url {torch_index}'
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)
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if not run_command(torch_cmd, "Installing PyTorch AI Engine (CPU version)"):
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print("[ERROR] PyTorch installation failed. Ensure Python 3.10–3.12 is installed and you have internet access.", file=sys.stderr)
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sys.exit(1)
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other_deps_cmd = (
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f'"{python_path}" -m pip install '
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f'"transformers<5" timm einops kornia pillow accelerate'
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)
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if not run_command(other_deps_cmd, "Installing HuggingFace Transformers & PIL library"):
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print("[ERROR] Dependency installation failed!", file=sys.stderr)
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sys.exit(1)
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if not verify_install(python_path):
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print("[ERROR] Package verification failed after installation!", file=sys.stderr)
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sys.exit(1)
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print("[STATUS] Setup completed successfully!")
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print("[STATUS] DONE")
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if __name__ == '__main__':
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main()
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