5b420b4e1f
Chains identity effect followed by dog effect on cat input. Demonstrates effect chaining: SOURCE → EFFECT → EFFECT → output Since identity(cat) = cat, the result is dog(cat) = dog video. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
102 lines
3.0 KiB
Python
102 lines
3.0 KiB
Python
#!/usr/bin/env python3
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"""
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Render dog(cat) - apply dog effect to cat image.
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Records full provenance: inputs, effects, software, hardware, owner.
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"""
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import hashlib
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import json
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import shutil
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import sys
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from datetime import datetime, timezone
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from pathlib import Path
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# Add effect to path
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sys.path.insert(0, str(Path(__file__).parent.parent / "artdag-effects" / "dog"))
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from effect import effect_dog, DOG_HASH
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def file_hash(path: Path) -> str:
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"""Compute SHA3-256 hash of a file."""
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hasher = hashlib.sha3_256()
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actual_path = path.resolve() if path.is_symlink() else path
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with open(actual_path, "rb") as f:
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for chunk in iter(lambda: f.read(65536), b""):
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hasher.update(chunk)
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return hasher.hexdigest()
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def main():
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# Registry hashes
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CAT_HASH = "33268b6e167deaf018cc538de12dbe562612b33e89a749391cef855b320a269b"
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DOG_EFFECT_HASH = "d048fe313433eb4e38f0e24194ffae91b896ca3e6eed3e50b2cc37b7be495555"
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ARTDAG_HASH = "96a5972de216aee12ec794dcad5f9360da2e676171eabf24a46dfe1ee5fee4b0"
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WORKSTATION_HASH = "964bf6e69dc4e2493f42375013caffe26404ec3cf8eb5d9bc170cd42a361523b"
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# Input (cat)
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cat_path = Path.home() / "artdag-art" / "cat.jpg"
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output_dir = Path.home() / "artdag-art"
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output_path = output_dir / "dog-from-cat.mkv"
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print("=== Rendering dog(cat) ===\n")
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# Verify input
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input_hash = file_hash(cat_path)
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print(f"Input: {cat_path}")
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print(f"Input hash: {input_hash}")
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assert input_hash == CAT_HASH, f"Input hash mismatch! Expected {CAT_HASH}"
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# Apply dog effect
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print(f"\nApplying dog effect...")
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result = effect_dog(cat_path, output_path, {})
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# Verify output
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output_hash = file_hash(result)
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print(f"\nOutput: {result}")
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print(f"Output hash: {output_hash}")
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assert output_hash == DOG_HASH, f"Output hash mismatch! Expected {DOG_HASH}"
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print(f"\n✓ dog(cat) = dog.mkv")
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print(f" Cat went in, dog came out!")
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# Record provenance
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provenance = {
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"minted_at": datetime.now(timezone.utc).isoformat(),
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"minted_by": "@giles@artdag.rose-ash.com",
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"output": {
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"name": "dog-from-cat",
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"content_hash": output_hash,
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"local_path": str(result),
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"url": None, # To be filled after push
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},
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"inputs": [
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{"name": "cat", "content_hash": CAT_HASH}
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],
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"recipe": {
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"name": "dog-cat",
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"description": "Apply dog effect to cat"
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},
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"effects": [
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{"name": "effect:dog", "content_hash": DOG_EFFECT_HASH}
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],
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"infrastructure": {
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"software": {"name": "infra:artdag", "content_hash": ARTDAG_HASH},
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"hardware": {"name": "infra:giles-hp", "content_hash": WORKSTATION_HASH}
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}
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}
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# Save provenance
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provenance_path = result.with_suffix(".provenance.json")
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with open(provenance_path, "w") as f:
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json.dump(provenance, f, indent=2)
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print(f"\nProvenance saved: {provenance_path}")
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return provenance
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if __name__ == "__main__":
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main()
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