mirror of
https://github.com/esphome/esphome.git
synced 2025-10-21 19:23:45 +01:00
105 lines
2.9 KiB
Python
Executable File
105 lines
2.9 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Extract memory usage statistics from ESPHome build output.
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This script parses the PlatformIO build output to extract RAM and flash
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usage statistics for a compiled component. It's used by the CI workflow to
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compare memory usage between branches.
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The script reads compile output from stdin and looks for the standard
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PlatformIO output format:
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RAM: [==== ] 36.1% (used 29548 bytes from 81920 bytes)
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Flash: [=== ] 34.0% (used 348511 bytes from 1023984 bytes)
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"""
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from __future__ import annotations
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import argparse
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from pathlib import Path
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import re
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import sys
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# Add esphome to path
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sys.path.insert(0, str(Path(__file__).parent.parent))
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# pylint: disable=wrong-import-position
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from script.ci_helpers import write_github_output
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def extract_from_compile_output(output_text: str) -> tuple[int | None, int | None]:
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"""Extract memory usage from PlatformIO compile output.
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Looks for lines like:
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RAM: [==== ] 36.1% (used 29548 bytes from 81920 bytes)
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Flash: [=== ] 34.0% (used 348511 bytes from 1023984 bytes)
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Args:
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output_text: Compile output text
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Returns:
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Tuple of (ram_bytes, flash_bytes) or (None, None) if not found
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"""
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ram_match = re.search(
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r"RAM:\s+\[.*?\]\s+\d+\.\d+%\s+\(used\s+(\d+)\s+bytes", output_text
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)
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flash_match = re.search(
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r"Flash:\s+\[.*?\]\s+\d+\.\d+%\s+\(used\s+(\d+)\s+bytes", output_text
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)
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if ram_match and flash_match:
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return int(ram_match.group(1)), int(flash_match.group(1))
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return None, None
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def main() -> int:
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"""Main entry point."""
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parser = argparse.ArgumentParser(
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description="Extract memory usage from ESPHome build output"
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)
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parser.add_argument(
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"--output-env",
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action="store_true",
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help="Output to GITHUB_OUTPUT environment file",
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)
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args = parser.parse_args()
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# Read compile output from stdin
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compile_output = sys.stdin.read()
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# Extract memory usage
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ram_bytes, flash_bytes = extract_from_compile_output(compile_output)
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if ram_bytes is None or flash_bytes is None:
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print("Failed to extract memory usage from compile output", file=sys.stderr)
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print("Expected lines like:", file=sys.stderr)
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print(
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" RAM: [==== ] 36.1% (used 29548 bytes from 81920 bytes)",
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file=sys.stderr,
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)
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print(
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" Flash: [=== ] 34.0% (used 348511 bytes from 1023984 bytes)",
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file=sys.stderr,
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)
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return 1
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print(f"RAM: {ram_bytes} bytes", file=sys.stderr)
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print(f"Flash: {flash_bytes} bytes", file=sys.stderr)
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if args.output_env:
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# Output to GitHub Actions
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write_github_output(
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{
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"ram_usage": ram_bytes,
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"flash_usage": flash_bytes,
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}
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)
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else:
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print(f"{ram_bytes},{flash_bytes}")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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