File size: 3,901 Bytes
d165388 1214afa d165388 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | #!/usr/bin/env python3
from __future__ import annotations
import argparse
import hashlib
import os
import shutil
import subprocess
import sys
import tempfile
from pathlib import Path
ROOT = Path(__file__).resolve().parent
DEFAULT_OUTPUT = ROOT.parent / "docs" / "canvas-4b-design-model-proposal.pdf"
SOURCE_DATE_EPOCH = "1785542400"
def sha256(path: Path) -> str:
digest = hashlib.sha256()
with path.open("rb") as handle:
while chunk := handle.read(1024 * 1024):
digest.update(chunk)
return digest.hexdigest()
def source_id() -> str:
digest = hashlib.sha256()
paths = [
ROOT / "paper.md",
ROOT / "main.tex",
ROOT / "capyresearch.sty",
ROOT / "prepare_content.py",
ROOT / "references.bib",
*sorted((ROOT / "assets").iterdir()),
]
for path in paths:
digest.update(path.relative_to(ROOT).as_posix().encode())
digest.update(b"\0")
digest.update(path.read_bytes())
digest.update(b"\0")
return digest.hexdigest()[:32].upper()
def require_commands() -> None:
missing = [
command
for command in ("pandoc", "latexmk", "lualatex")
if shutil.which(command) is None
]
if missing:
raise SystemExit("missing paper build commands: " + ", ".join(missing))
def render(output: Path) -> Path:
require_commands()
with tempfile.TemporaryDirectory(prefix="capy-canvas-paper-") as directory:
build = Path(directory)
for name in (
"paper.md",
"main.tex",
"capyresearch.sty",
"prepare_content.py",
"references.bib",
):
shutil.copy2(ROOT / name, build / name)
shutil.copytree(ROOT / "assets", build / "assets")
main = build / "main.tex"
main.write_text(
main.read_text().replace("CAPY_PDF_TRAILER_ID", source_id())
)
environment = {
**os.environ,
"SOURCE_DATE_EPOCH": SOURCE_DATE_EPOCH,
"FORCE_SOURCE_DATE": "1",
"TZ": "UTC",
}
subprocess.run(
[sys.executable, "prepare_content.py"],
cwd=build,
env=environment,
check=True,
)
subprocess.run(
[
"latexmk",
"-lualatex",
"-interaction=nonstopmode",
"-halt-on-error",
"main.tex",
],
cwd=build,
env=environment,
check=True,
)
output.parent.mkdir(parents=True, exist_ok=True)
temporary = output.with_name(f".{output.name}.tmp")
shutil.copy2(build / "main.pdf", temporary)
os.replace(temporary, output)
return output
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument("--output", type=Path, default=DEFAULT_OUTPUT)
parser.add_argument(
"--check",
action="store_true",
help="Render to a temporary file and require an exact canonical-PDF match.",
)
args = parser.parse_args()
if args.check:
with tempfile.TemporaryDirectory(prefix="capy-canvas-paper-check-") as directory:
rendered = render(Path(directory) / DEFAULT_OUTPUT.name)
if not DEFAULT_OUTPUT.exists():
raise SystemExit(f"canonical PDF is missing: {DEFAULT_OUTPUT}")
if rendered.read_bytes() != DEFAULT_OUTPUT.read_bytes():
raise SystemExit(
"canonical PDF is stale: "
f"expected {sha256(rendered)}, found {sha256(DEFAULT_OUTPUT)}"
)
print(f"paper is reproducible: {sha256(rendered)}")
return
rendered = render(args.output.expanduser().resolve())
print(f"rendered {rendered} ({sha256(rendered)})")
if __name__ == "__main__":
main()
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