56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
#!/usr/bin/env python3
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"""Extract RELEASE_FLAGS, PREVIEW_FLAGS, and DOGFOOD_FLAGS from warp_features.
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Parses crates/warp_features/src/lib.rs to find the const arrays and extracts
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the FeatureFlag variant names. Stdlib only, no pip deps.
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Usage:
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python3 extract_feature_flags.py --file crates/warp_features/src/lib.rs
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Outputs JSON to stdout.
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"""
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import argparse
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import json
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import re
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import sys
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def extract_flag_list(source: str, const_name: str) -> list[str]:
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"""Extract FeatureFlag variant names from a const array definition."""
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# Match: pub const CONST_NAME: &[FeatureFlag] = &[ ... ];
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pattern = rf"pub\s+const\s+{re.escape(const_name)}\s*:\s*&\[FeatureFlag\]\s*=\s*&\[(.*?)\];"
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m = re.search(pattern, source, re.DOTALL)
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if not m:
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return []
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block = m.group(1)
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# Extract FeatureFlag::VariantName entries, ignoring #[cfg(...)] attributes
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variants = re.findall(r"FeatureFlag::(\w+)", block)
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return variants
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def main() -> None:
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parser = argparse.ArgumentParser(description="Extract feature flag gate lists")
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parser.add_argument(
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"--file",
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required=True,
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help="Path to warp_features lib.rs",
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)
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args = parser.parse_args()
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with open(args.file) as f:
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source = f.read()
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output = {
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"release_flags": extract_flag_list(source, "RELEASE_FLAGS"),
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"preview_flags": extract_flag_list(source, "PREVIEW_FLAGS"),
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"dogfood_flags": extract_flag_list(source, "DOGFOOD_FLAGS"),
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}
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json.dump(output, sys.stdout, indent=2)
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print()
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if __name__ == "__main__":
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main()
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