colcon-library-path

import subprocess import os import shutil # --- Setup: Create a dummy colcon workspace and package --- # This part simulates typical shell commands for setting up a colcon project. workspace_path = "my_colcon_workspace" os.makedirs(f"{workspace_path}/src/my_library", exist_ok=True) with open(f"{workspace_path}/src/my_library/CMakeLists.txt", "w") as f: f.write("project(my_library NONE)\n") f.write("add_library(my_library SHARED my_library.cpp)\n") with open(f"{workspace_path}/src/my_library/my_library.cpp", "w") as f: f.write("// dummy C++ file\nint main() { return 0; }") print(f"Created dummy package in {workspace_path}/src/my_library") # --- Step 1: Run colcon build with --add-build-paths --- # This activates the colcon-library-path extension. try: print("\nRunning colcon build with --add-build-paths...") # Ensure colcon is in PATH, otherwise specify full path to colcon executable result = subprocess.run( ['colcon', 'build', '--cmake-args', '-DBUILD_SHARED_LIBS=ON', '--packages-select', 'my_library', '--add-build-paths'], cwd=workspace_path, check=True, capture_output=True, text=True ) print("colcon build stdout:\n" + result.stdout) if result.stderr: print("colcon build stderr:\n" + result.stderr) except FileNotFoundError: print("Error: 'colcon' command not found. Please install colcon (pip install colcon-common-extensions).") # Cleanup before exiting shutil.rmtree(workspace_path) exit(1) except subprocess.CalledProcessError as e: print(f"Error during colcon build:\n{e.stderr}") # Cleanup before exiting shutil.rmtree(workspace_path) exit(1) # --- Step 2: Source the generated setup file and check COLCON_LIBRARY_PATH --- # This demonstrates the effect of colcon-library-path on the environment. setup_file_path = os.path.join(workspace_path, "install", "setup.bash") if os.path.exists(setup_file_path): print(f"\nSourcing {setup_file_path} and checking COLCON_LIBRARY_PATH...") # Simulate sourcing in a new shell to get the environment variable command = f"source {setup_file_path} && echo $COLCON_LIBRARY_PATH" result_env = subprocess.run( ['bash', '-c', command], check=True, capture_output=True, text=True ) colcon_lib_path = result_env.stdout.strip() print(f"COLCON_LIBRARY_PATH after setup: {colcon_lib_path}") if f"{workspace_path}/install/my_library/lib" in colcon_lib_path or \ f"{workspace_path}/build/my_library" in colcon_lib_path: print("\u2705 colcon-library-path successfully contributed to COLCON_LIBRARY_PATH.") else: print("\u274c COLCON_LIBRARY_PATH does not contain expected library paths.") else: print(f"\u274c Error: {setup_file_path} not found. Build might have failed or not produced a setup file.") # --- Cleanup --- print(f"\nCleaning up workspace: {workspace_path}") shutil.rmtree(workspace_path)