mirror of
https://github.com/logicog/RTLPlayground.git
synced 2026-10-29 17:54:14 +08:00
eraiza0816
57e3fce95e
Two build-time steps shrink the embedded Web UI (html/) from 113,015 to 34,784 bytes (30.8 %): - tools/minify.py (new): string-literal-safe minifier that strips comments and indentation; comments are pure overhead on the wire, so the transfer size drops already before gzip (113,015 -> 101,498). Binary files (.ico) are copied through unchanged. The output goes to output/html_min/, the new fileadder input. - fileadder -z: gzip-compresses every added file (zlib gzip format, Z_BEST_COMPRESSION); the generated f_data entries carry a gzip flag. tools/Makefile links the tool against -lz. - httpd: adds "Content-Encoding: gzip" for flagged entries; the 8051 only copies compressed bytes, decompression happens in the browser. The JSON API stays uncompressed. Fixes required to make the sizes deterministic: - fileadder terminated files at data_read + 1, so the strlen()-based size computation depended on uninitialised buffer content; the NUL now lands directly after the content. - version.h was .PHONY, so every build rewrote it while parallel builds could read a half-written copy. - the file list was unscoped and missed .css/.ico; it is now scoped to html/ and covers all embedded types. Measured with make MACHINE=KP_9000_6XHML_X2: data block end moves from 0x5b977 to 0x487e0 (~78 KB freed on a 512 KB image). Verified with MACHINE=PCB_K0402WS_V3 and on real hardware (PCB-K0402WS-V3).
73 lines
2.0 KiB
Python
73 lines
2.0 KiB
Python
#!/usr/bin/env python3
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"""Safe minifier for the WebUI sources (HTML/JS).
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Removes comments and line-leading whitespace without touching string
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literals, so the output is functionally identical to the input. Used
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by the firmware Makefile before the files are embedded in the flash;
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the raw sources in html/ stay untouched for development.
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Binary files (.ico) are copied through unchanged.
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Usage: minify.py <src> <dst>
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"""
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import re
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import shutil
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import sys
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def js_min(s):
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out = []
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i = 0
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n = len(s)
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while i < n:
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c = s[i]
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if c == '"' or c == "'":
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j = i + 1
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while j < n and s[j] != c:
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if s[j] == '\\':
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j += 1
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j += 1
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out.append(s[i:j + 1])
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i = j + 1
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elif c == '/' and i + 1 < n and s[i + 1] == '/':
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j = s.find('\n', i)
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i = j if j >= 0 else n
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elif c == '/' and i + 1 < n and s[i + 1] == '*':
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j = s.find('*/', i + 2)
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i = j + 2 if j >= 0 else n
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else:
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out.append(c)
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i += 1
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lines = [l.strip() for l in ''.join(out).split('\n')]
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return '\n'.join(l for l in lines if l) + '\n'
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def html_min(s):
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s = re.sub(r'<!--.*?-->', '', s, flags=re.S)
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lines = [l.strip() for l in s.split('\n')]
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return '\n'.join(l for l in lines if l) + '\n'
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def main():
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if len(sys.argv) != 3:
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print('usage: minify.py <src> <dst>', file=sys.stderr)
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sys.exit(1)
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src, dst = sys.argv[1], sys.argv[2]
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if src.endswith('.ico'):
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shutil.copyfile(src, dst)
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print('%s: copied %d bytes' % (src.split('/')[-1], len(open(src, 'rb').read())))
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return
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with open(src, 'r', encoding='utf-8', errors='replace') as f:
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s = f.read()
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if src.endswith('.js'):
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out = js_min(s)
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else:
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out = html_min(s)
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with open(dst, 'w', encoding='utf-8') as f:
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f.write(out)
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print('%s: %d -> %d bytes' % (src.split('/')[-1], len(s), len(out)))
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if __name__ == '__main__':
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main()
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