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add gzip compression size info

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Jason2866 2020-11-12 13:26:14 +01:00 committed by GitHub
parent 85e7f07ef4
commit ae7b825c74
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1 changed files with 5 additions and 0 deletions
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5
pio/gzip-firmware.py
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@ -19,5 +19,10 @@ def bin_gzip(source, target, env):
with open(bin_file,"rb") as fp:
with gzip.open(gzip_file, "wb", compresslevel = 9) as f:
shutil.copyfileobj(fp, f)
ORG_FIRMWARE_SIZE = os.stat(bin_file).st_size
GZ_FIRMWARE_SIZE = os.stat(gzip_file).st_size
print("Compression reduced firmware size by {:.0f}% (was {} bytes, now {} bytes)".format((GZ_FIRMWARE_SIZE / ORG_FIRMWARE_SIZE) * 100, ORG_FIRMWARE_SIZE, GZ_FIRMWARE_SIZE))
env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", [bin_gzip])