Rayhaan JaufeerallyandClaude Fable 5.1
b1b72fed39
The fill-in fields put the label on its own line with dotted lines to write on. handout.tex takes \studentnum and \studenthex; build-class.py compiles one copy per student with the prefix filled in, checks each is two pages and joins them for double-sided printing. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
64 lines
2.7 KiB
Python
Executable File
64 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python3
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"""One exercise sheet per student, with their prefix filled in, in one PDF.
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python3 build-class.py 100 # students 1..100 -> class.pdf
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python3 build-class.py 100 -o out.pdf
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python3 build-class.py 5 12 -o few.pdf # students 5..12
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Student n gets 2a0d:d741:<n in hex>::/48; the lab /40 allows 1..255. Each
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sheet is compiled separately and must come out to exactly two pages, so
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the result prints double-sided with one student per leaf. Needs pdflatex
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and pdfunite (poppler).
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"""
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import argparse
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import os
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import shutil
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import subprocess
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import sys
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import tempfile
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HERE = os.path.dirname(os.path.abspath(__file__))
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def page_count(pdf):
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out = subprocess.run(["pdfinfo", pdf], capture_output=True, text=True, check=True).stdout
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return int(next(line.split()[-1] for line in out.splitlines() if line.startswith("Pages:")))
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def main():
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ap = argparse.ArgumentParser(description=__doc__.split("\n")[0])
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ap.add_argument("first", type=int, help="first student number, or the count if it is the only number")
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ap.add_argument("last", type=int, nargs="?")
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ap.add_argument("-o", "--output", default=os.path.join(HERE, "class.pdf"))
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args = ap.parse_args()
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first, last = (1, args.first) if args.last is None else (args.first, args.last)
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if not 1 <= first <= last <= 255:
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sys.exit("student numbers must be within 1..255: the lab /40 has 255 usable /48s")
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with tempfile.TemporaryDirectory() as tmp:
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for name in os.listdir(HERE):
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if name.endswith((".tex", ".cls", ".sty", ".bst", ".bib")):
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shutil.copy(os.path.join(HERE, name), tmp)
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parts = []
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for n in range(first, last + 1):
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job = f"student-{n:03d}"
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tex = f"\\def\\studentnum{{{n}}}\\def\\studenthex{{{n:x}}}\\input{{handout.tex}}"
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for _ in range(2): # twice, for the figure and table references
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r = subprocess.run(["pdflatex", "-interaction=nonstopmode", "-halt-on-error", "-jobname", job, tex],
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cwd=tmp, capture_output=True, text=True)
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if r.returncode != 0:
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sys.exit(f"student {n}: pdflatex failed:\n{r.stdout[-2000:]}")
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pdf = os.path.join(tmp, job + ".pdf")
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pages = page_count(pdf)
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if pages != 2:
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sys.exit(f"student {n}: sheet is {pages} pages, not 2; double-sided printing would misalign")
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parts.append(pdf)
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print(f"\rstudent {n}: 2a0d:d741:{n:x}::/48", end="", flush=True)
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print()
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subprocess.run(["pdfunite", *parts, args.output], check=True)
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print(f"wrote {args.output}: students {first}..{last}, {page_count(args.output)} pages")
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if __name__ == "__main__":
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main()
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