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#!/usr/bin/env python
"""Build a LaTeX project.
Two invocations are supported:
1) run_latex.py [texlive] [latexrun] [jobname] [mainfile].tex [outfile].pdf [sources...]
2) run_latex.py [texlive] [latexrun] [jobname] [mainfile].tex -- [sources...] -- [command...]
The first will build [outfile].pdf from [mainfile].tex and the [sources...].
This is used to build the PDF file for the [name]_getpdf rules.
The second will build the paper, place [jobname].bbl in the current directory,
then call [command...]. This is used to build the bbl file for the
[name]_getarxivable rules.
"""
import glob
import os
import shutil
import subprocess
import sys
# Copy any existing build cache here.
cache_dir = "/tmp/bazel-latex.cache"
if os.path.exists(cache_dir) and os.path.isdir(cache_dir):
shutil.copytree(cache_dir, "latex.out")
texlive, latexrun, job_name, main_file, output_file = sys.argv[1:6]
sources = sys.argv[6:]
if output_file == "--":
run_after = sources[sources.index("--"):][1:]
sources = sources[:sources.index("--")]
env = dict(os.environ)
# Generated files (eg. outputs of pdfcrop) are placed under bazel-out/*/bin.
# This references the bin directory so pdflatex can find them. There is
# probably a better way of doing this.
bin_dirs = set()
for source in sources:
if source.startswith("bazel-out"):
bin_dirs.add("%s/%s" % (os.getcwd(), "/".join(source.split("/")[:3])))
env["TEXINPUTS"] = ".:%s:" % ":".join(sorted(bin_dirs))
env["PATH"] = "%s:%s" % (os.path.abspath("%s/bin/x86_64" % texlive), env["PATH"])
env["PATH"] = "%s:%s" % (os.path.abspath(texlive), env["PATH"])
env["TEXMFHOME"] = os.path.abspath(texlive)
env["TEXMFVAR"] = os.path.abspath(texlive)
env["SOURCE_DATE_EPOCH"] = "0"
return_code = subprocess.call(
args=[
"python3",
latexrun,
"--latex-args=-jobname=" + job_name,
"--latex-cmd=pdflatex",
"--bibtex-cmd=bibtex",
"-Wall",
main_file,
],
env=env,
)
# Copy back to the build cache.
if os.path.exists(cache_dir):
shutil.rmtree(cache_dir)
shutil.copytree("latex.out", cache_dir)
if return_code != 0:
sys.exit(return_code)
if output_file != "--":
os.rename(job_name + ".pdf", output_file)
else:
# Run the run_after script.
os.rename("latex.out/" + job_name + ".bbl", job_name + ".bbl")
return_code = subprocess.call(
args=run_after,
env=env,
)
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