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Update build_preprint.yml
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‎.github/workflows/build_preprint.yml‎

Lines changed: 51 additions & 115 deletions
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name: Draft PDF and Preprint Package
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on:
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push:
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branches: [main]
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env:
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FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
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jobs:
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build-paper:
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runs-on: ubuntu-latest
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name: Build Preprint PDF and Package
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steps:
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- name: Checkout repository
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uses: actions/checkout@v6
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- name: Install apt packages
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run: |
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sudo apt-get update
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sudo apt-get install -y pandoc texlive texlive-latex-extra texlive-fonts-recommended texlive-xetex texlive-fonts-extra zip python3-yaml
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- name: Extract JOSS frontmatter and build LaTeX assets
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- name: Extract Metadata and Build LaTeX Title
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run: |
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python3 - << 'PYEOF'
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import yaml, re
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import yaml
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with open('paper/paper.md', 'r') as f:
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content = f.read()
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parts = content.split('---\n')
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fm = yaml.safe_load(parts[1])
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authors = fm.get('authors', [])
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affiliations = {a['index']: a['name'] for a in fm.get('affiliations', [])}
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authors = fm.get('authors', [])
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affiliations = fm.get('affiliations', [])
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aff_map = {str(a['index']): a for a in affiliations}
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# ── Pandoc metadata ───────────────────────────────────────────────────
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# Pass hyperref colours and geometry as Pandoc variables so they reach
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# the template *before* \usepackage{hyperref} is emitted — avoids the
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# option-clash that occurs when loading hyperref a second time in
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# --include-in-header.
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# ── Pandoc Metadata ─────────────────────────────────────────────────
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meta = {
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'title': fm.get('title', ''),
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'date': str(fm.get('date', '')),
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'colorlinks': True,
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'linkcolor': 'blue',
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'urlcolor': 'blue',
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'citecolor': 'blue',
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'geometry': 'a4paper, margin=2.5cm',
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'title': fm.get('title', ''),
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'date': str(fm.get('date', '')),
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'colorlinks': True,
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'linkcolor': 'blue',
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'urlcolor': 'blue',
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'citecolor': 'blue',
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'geometry': 'a4paper, margin=2.5cm',
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}
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with open('/tmp/pandoc_meta.yaml', 'w') as f:
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yaml.dump(meta, f, allow_unicode=True)
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yaml.dump(meta, f)
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# ── LaTeX title block ─────────────────────────────────────────────────
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lines = []
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lines.append(r'\begin{center}')
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lines.append(r'{\LARGE\bfseries ' + fm.get('title','').replace('&', r'\&') + r'}\\[0.8em]')
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# ── Title Block Construction ────────────────────────────────────────
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lines = [r'\begin{center}']
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lines.append(r'{\LARGE\bfseries ' + fm.get('title','') + r'}\\[1.2em]')
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author_parts = []
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auth_line = []
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for a in authors:
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affs = a.get('affiliation', '')
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nums = [s.strip() for s in str(affs).split(',')]
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sup = ','.join(nums)
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name = a['name'].replace('&', r'\&')
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name = a['name']
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aff_indices = str(a.get('affiliation', '')).split(',')
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marker = ",".join([idx.strip() for idx in aff_indices])
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if a.get('corresponding'):
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author_parts.append(rf'{name}$^{{{sup},*}}$')
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else:
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author_parts.append(rf'{name}$^{{{sup}}}$')
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lines.append(r'\large ' + r',\quad '.join(author_parts) + r'\\[0.5em]')
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for idx, name in sorted(affiliations.items()):
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lines.append(rf'$^{{{idx}}}$\small {name.replace("&", r"&")}\\[0.2em]')
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for a in authors:
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if a.get('corresponding') and a.get('email'):
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lines.append(r'\small $^{*}$Corresponding author: \href{mailto:'
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+ a['email'] + r'}{' + a['email'] + r'}\\[0.3em]')
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lines.append(r'\small ' + str(fm.get('date','')) + r'\\')
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marker += r",*"
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auth_line.append(rf'{name}$^{{{marker}}}$')
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lines.append(r'\large ' + r', '.join(auth_line) + r'\\[0.8em]')
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for idx, aff in aff_map.items():
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ror_id = aff.get('ror', '')
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ror_link = rf" \small (ROR: \href{{https://ror.org/{ror_id}}}{{{ror_id}}})" if ror_id else ""
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lines.append(rf'$^{{{idx}}}$\small {aff["name"]}{ror_link}\\[0.2em]')
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corres = [a['email'] for a in authors if a.get('corresponding') and a.get('email')]
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if corres:
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lines.append(rf'\small $^*$Corresponding author: \href{{mailto:{corres[0]}}}{{{corres[0]}}}\\[0.2em]')
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lines.append(r'\small DOI: \href{https://doi.org/10.5281/zenodo.18377216}{10.5281/zenodo.18377216}\\[0.2em]')
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lines.append(r'\small ' + str(fm.get('date','')))
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lines.append(r'\end{center}')
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lines.append(r'\vspace{1em}')
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lines.append(r'\noindent\rule{\textwidth}{0.4pt}')
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lines.append(r'\vspace{0.5em}')
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lines.append(r'\vspace{0.5em}\noindent\rule{\textwidth}{0.6pt}\vspace{1.5em}')
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with open('/tmp/title_block.tex', 'w') as f:
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f.write('\n'.join(lines))
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print("Done. Authors:", [a['name'] for a in authors])
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PYEOF
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- name: Create LaTeX header
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- name: Create Header
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run: |
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cat > /tmp/header.tex << 'EOF'
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% ── URL breaking (loaded AFTER hyperref by Pandoc's template) ─────────
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\usepackage{xurl}
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% ── Fonts ─────────────────────────────────────────────────────────────
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\usepackage{fontspec}
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\setmainfont{TeX Gyre Termes}
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\usepackage{microtype}
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% ── Preprint watermark header ─────────────────────────────────────────
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\usepackage{unicode-math}
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\setmathfont{TeX Gyre Termes Math}
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\usepackage{fancyhdr}
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\usepackage{xcolor}
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\pagestyle{fancy}
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\fancyhf{}
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\fancyhead[C]{%
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\textcolor{red}{\textbf{PREPRINT\,---\,NOT PEER REVIEWED}}%
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}
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% ── Clear Preprint Identification ───────────────────────────────────
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\fancyhead[L]{\small \textbf{\textcolor{gray}{PREPRINT -- NOT PEER REVIEWED}}}
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\fancyhead[R]{\small \textit{PICA: Advanced Transport Automation}}
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\fancyfoot[C]{\thepage}
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\renewcommand{\headrulewidth}{0.4pt}
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% ── Suppress Pandoc's auto title block (we use our own) ───────────────
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% ── Internal Reference Logic ────────────────────────────────────────
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\renewcommand{\maketitle}{}
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\hypersetup{
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breaklinks=true,
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pdfauthor={Deshmukh and Mukherjee},
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pdftitle={PICA: High-Precision Automation}
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}
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EOF
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- name: Generate Preprint PDF and LaTeX source
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run: |
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cd paper
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pandoc paper.md -o paper.pdf \
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--standalone \
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--citeproc \
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--pdf-engine=xelatex \
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--metadata-file=/tmp/pandoc_meta.yaml \
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--include-in-header=/tmp/header.tex \
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--include-before-body=/tmp/title_block.tex
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pandoc paper.md -o paper.tex \
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--standalone \
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--citeproc \
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--pdf-engine=xelatex \
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--metadata-file=/tmp/pandoc_meta.yaml \
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--include-in-header=/tmp/header.tex \
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--include-before-body=/tmp/title_block.tex
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zip preprint_submission.zip paper.tex
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- name: Upload Preprint PDF
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uses: actions/upload-artifact@v7
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with:
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name: preprint-pdf
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path: paper/paper.pdf
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- name: Upload Preprint Package
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uses: actions/upload-artifact@v7
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with:
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name: preprint-package
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path: paper/preprint_submission.zip

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