setup script that creates a uv environment requiring only the existence of a uv_executable

setup_notebooks.py

@@ -0,0 +1,150 @@
+#!/usr/bin/env python
+
+import argparse
+import subprocess
+import sys
+import tempfile
+from pathlib import Path
+
+def run_command(command, cwd):
+    """Runs a command and prints its output."""
+    print(f"Running command: {' '.join(command)} in {cwd}")
+    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, cwd=cwd, text=True)
+    for line in iter(process.stdout.readline, ''):
+        print(line, end='')
+    process.wait()
+    if process.returncode != 0:
+        raise subprocess.CalledProcessError(process.returncode, command)
+
+def setup_env(outdir, 
+              commit, 
+              python_version, 
+              nbfiles,
+              uv_executable,
+              nbmake_timeout,
+              nbmake_kernel,
+              nbmake_allow_errors,
+              nbmake_rerun):
+    """
+    Sets up a student environment for ISLP_labs.
+
+    Parameters
+    ----------
+    outdir : Path
+        Output directory.
+    commit : str
+        Commit hash or tag to checkout.
+    python_version : str
+        Python version to use for the virtual environment.
+    nbfiles : list
+        List of notebook files to run with nbmake.
+    uv_executable : str
+        The `uv` executable.
+    nbmake_timeout : int
+        Timeout for running notebooks with nbmake.
+    nbmake_kernel : str
+        Kernel to use for running notebooks with nbmake.
+    nbmake_allow_errors : bool
+        Allow errors when running notebooks with nbmake.
+    nbmake_rerun : int
+        Number of times to rerun notebooks with nbmake.
+    """
+    repo_url = 'https://github.com/intro-stat-learning/ISLP_labs.git'
+
+    if outdir is None:
+        with tempfile.TemporaryDirectory() as tmpdir:
+            setup_env(Path(tmpdir), 
+                      commit, 
+                      python_version, 
+                      nbfiles,
+                      uv_executable,
+                      nbmake_timeout,
+                      nbmake_kernel,
+                      nbmake_allow_errors,
+                      nbmake_rerun)
+        return
+    
+    if not outdir.exists():
+        outdir.mkdir(parents=True)
+
+    try:
+        print(f"Initializing repository in {outdir}...")
+        run_command(['git', 'init'], cwd=str(outdir))
+        run_command(['git', 'remote', 'add', 'origin', repo_url], cwd=str(outdir))
+
+        print(f"Fetching commit {commit}...")
+        run_command(['git', 'fetch', 'origin', commit, '--depth=1'], cwd=str(outdir))
+        
+        print(f"Checking out commit {commit}...")
+        run_command(['git', 'checkout', 'FETCH_HEAD'], cwd=str(outdir))
+
+        print(f"Setting up Python {python_version} with {uv_executable}...")
+        run_command([uv_executable, 'python', 'install', python_version], cwd=str(outdir))
+
+        print("Creating virtual environment...")
+        run_command([uv_executable, 'venv', '--python', python_version, '--seed'], cwd=str(outdir))
+
+        print("Installing requirements...")
+        venv_dir = Path('.venv')
+        uv_bin = venv_dir / 'Scripts' if sys.platform == 'win32' else venv_dir / 'bin' 
+        
+        run_command([str(uv_bin / 'pip'), 'install', '-r', 'requirements.txt', 'jupyterlab'], cwd=str(outdir))
+        
+        if nbfiles:
+            run_command([str(uv_bin / 'pip'), 'install', 'pytest', 'nbmake'], cwd=str(outdir))
+            for nbfile in nbfiles:
+                notebook_path = outdir / nbfile
+                if not notebook_path.exists():
+                    print(f"Error: Notebook '{nbfile}' not found in the repository.", file=sys.stderr)
+                    continue
+
+                print(f"Running notebook {notebook_path}...")
+                pytest_command = [str(uv_bin / 'pytest'), '--nbmake', f'--nbmake-timeout={nbmake_timeout}', '-vv', str(nbfile)]
+                if nbmake_kernel:
+                    pytest_command.append(f'--nbmake-kernel={nbmake_kernel}')
+                if nbmake_allow_errors:
+                    pytest_command.append('--nbmake-allow-errors')
+                if nbmake_rerun > 0:
+                    pytest_command.append(f'--nbmake-rerun={nbmake_rerun}')
+
+                run_command(pytest_command, cwd=str(outdir))
+
+        print("Setup completed successfully.")
+        print(f"Environment is in: {outdir}")
+        if sys.platform == 'win32':
+            print(f"Activate it with: .\\{outdir.name}\\.venv\\Scripts\\activate")
+        else:
+            print(f"Activate it with: source {outdir.name}/.venv/bin/activate")
+
+
+    except subprocess.CalledProcessError as e:
+        print(f"An error occurred: {e}", file=sys.stderr)
+        sys.exit(1)
+
+def main():
+    parser = argparse.ArgumentParser(description='Setup a student environment for ISLP_labs.')
+    parser.add_argument('--outdir', type=Path, default=None, help='The output directory to checkout the labs (default: a temporary directory)')
+    parser.add_argument('--commit', default='main', help='The git commit, tag, or branch to checkout (default: main)')
+    parser.add_argument('--python-version', default='3.11', help='Python version to use (default: 3.11)')
+    parser.add_argument('--uv-executable', default='uv', help='The `uv` executable to use (default: "uv")')
+    parser.add_argument('--nbmake-timeout', type=int, default=3600, help='Timeout for running notebooks with nbmake (default: 3600)')
+    parser.add_argument('--nbmake-kernel', default=None, help='Kernel to use for running notebooks with nbmake')
+    parser.add_argument('--nbmake-allow-errors', action='store_true', help='Allow errors when running notebooks with nbmake')
+    parser.add_argument('--nbmake-rerun', type=int, default=0, help='Number of times to rerun notebooks with nbmake')
+
+    parser.add_argument('nbfiles', nargs='*', help='Optional list of notebooks to run using nbmake.')
+
+    args = parser.parse_args()
+    
+    setup_env(args.outdir, 
+              args.commit, 
+              args.python_version, 
+              args.nbfiles,
+              args.uv_executable,
+              args.nbmake_timeout,
+              args.nbmake_kernel,
+              args.nbmake_allow_errors,
+              args.nbmake_rerun)
+
+if __name__ == '__main__':
+    main()