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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| import click | ||
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| from pathlib import Path | ||
| from taf.log import taf_logger | ||
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| import ast | ||
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| def extract_global_variables(filename): | ||
| """ | ||
| Utility function to extract global variables from a Python file. | ||
| This is necessary because we want to execute the Python file in a separate process, and we need to pass the global variables to it. | ||
| TAF currently uses this when executing lifecycle handler scripts from an executable built from pyinstaller, which uses a frozen sys module. | ||
| """ | ||
| with open(filename, "r") as f: | ||
| tree = ast.parse(f.read(), filename=filename) | ||
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| global_vars = {} | ||
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| for node in ast.walk(tree): | ||
| try: | ||
| if isinstance(node, ast.Assign): | ||
| for target in node.targets: | ||
| if isinstance(target, ast.Name): | ||
| # We only extract simple variable assignments, not function definitions or imports | ||
| if isinstance(node.value, (ast.Constant, ast.List, ast.Dict, ast.Tuple, ast.Constant)): | ||
| # Convert the AST expression to Python objects | ||
| global_vars[target.id] = ast.literal_eval(node.value) | ||
| except Exception as e: | ||
| taf_logger.debug(f"Error extracting global variables from {filename}: {e}") | ||
| pass | ||
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| global_vars["__file__"] = filename | ||
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| return global_vars | ||
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| def execute_command(): | ||
| @click.command(help="Executes an arbitrary python script") | ||
| @click.argument("script_path") | ||
| def execute(script_path): | ||
| script_path = Path(script_path).resolve() | ||
| global_scopes = extract_global_variables(script_path) | ||
| with open(script_path, "r") as f: | ||
| exec(f.read(), global_scopes) # nosec: B102 | ||
| return execute | ||
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| def attach_to_group(group): | ||
| group.add_command(execute_command(), name='execute') |
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