61 lines
2.5 KiB
Python
61 lines
2.5 KiB
Python
#!/usr/bin/env python3
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"""Build Deepgrain Foundry into one self-contained HTML file.
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The source files listed in src/manifest.json are joined in order (sim first, then the browser
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code) into one classic script, so they share one global scope and 'use strict' at the top of
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src/sim/base.js applies to all of it. No bundler, no dependencies.
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Writes:
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dist/index.html the full page: serve with python3 tools/serve.py
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dist/deepgrain-foundry.html the same without <!doctype>/<head>/<body>, for hosts (like a
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claude.ai artifact) that wrap the page themselves
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dist/bundle-lines.json where each source file starts in dist/index.html, so a line number
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from a browser error can be traced back: python3 tools/where.py LINE
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"""
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import json, pathlib
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root = pathlib.Path(__file__).resolve().parent
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src = root / 'src'
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dist = root / 'dist'
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man = json.loads((src / 'manifest.json').read_text())
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def join(files):
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"""Join files with one newline between them; return the text and [first line, file] pairs."""
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parts, starts, line = [], [], 1
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for f in files:
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text = (src / f).read_text().rstrip('\n')
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starts.append([line, f])
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parts.append(text)
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line += text.count('\n') + 1
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return '\n'.join(parts), starts
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def main():
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shell = (src / man['shell']).read_text()
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css, _ = join(man['css'])
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js, starts = join(man['sim'] + man['client'])
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sim, _ = join(man['sim'])
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# Keep worker code outside the indexed script so source line mappings stay exact.
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worker = '<script>const SIM_WORKER_SOURCE=' + json.dumps(sim).replace('</', '<\\/') + ';</script>'
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head, tail = shell.split('//__JS__')
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body = head.replace('/*__CSS__*/', css)
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page = body + js + tail
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page = worker + page
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pre = ('<!doctype html><html><head><meta charset="utf-8">'
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'<meta name="viewport" content="width=device-width,initial-scale=1,viewport-fit=cover">'
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'</head><body>')
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full = pre + page + '</body></html>\n'
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dist.mkdir(exist_ok=True)
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(dist / 'deepgrain-foundry.html').write_text(page)
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(dist / 'index.html').write_text(full)
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# the script starts on this line of index.html (the doctype prefix has no newlines)
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js_line = worker.count('\n') + body.count('\n') + 1
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(dist / 'bundle-lines.json').write_text(json.dumps(
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{'page': 'dist/index.html', 'files': [[js_line + s - 1, f] for s, f in starts]}, indent=1) + '\n')
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print(f'built dist/index.html ({len(full):,} bytes, {len(starts)} source files)')
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if __name__ == '__main__':
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main()
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