Add arxiv target

The `preprint` target outputs a very plain file, missing any
journal-specific styling.  It's nice when the arxiv version of a paper
has similar formatting to the published version.  There have been
requests and discussions concerning a smooth way to do this.

Some issues were raised, the biggest one being possible confusion about
the publication status of a preprint.

Configure pandoc to output a LaTeX file somewhat closer to that which
would generate the official PDFs.  In order to distinguish it from a
published article, this style:

- Removes the journal logo from the header.
- Replaces the DOI and review details in the sidebar with "Preprint:
  Prepared for submission to $journal.title$".  This is borrowed from
  JCAP's LaTeX style.
- Removes the self-citation in the footer.

There are other minor differences in fonts and PDF tags because
arxiv.org only supports `pdflatex`, not `lualatex`.

Author: musoke

Makefile

@@ -16,16 +16,17 @@ TARGET_FOLDER = publishing-artifacts
 ARTICLE_INFO_FILE = $(OPENJOURNALS_PATH)/default-article-info.yaml
 
 .PHONY: all
-all: cff pdf html jats crossref native preprint
+all: cff pdf html jats crossref native preprint arxiv
 
-.PHONY: cff pdf html jats crossref native preprint
+.PHONY: cff pdf html jats crossref native preprint arxiv
 cff: $(TARGET_FOLDER)/paper.cff
 pdf: $(TARGET_FOLDER)/paper.pdf
 html: $(TARGET_FOLDER)/paper.html
 jats:	$(TARGET_FOLDER)/paper.jats
 native:	$(TARGET_FOLDER)/paper.native
 crossref:	$(TARGET_FOLDER)/paper.crossref
 preprint:	$(TARGET_FOLDER)/paper.preprint
+arxiv:	$(TARGET_FOLDER)/paper.arxiv.tex
 
 $(TARGET_FOLDER)/paper.%: $(ARTICLE) \
 		$(INARA_DATA_PATH)/defaults/%.yaml \
@@ -68,3 +69,4 @@ clean:
 	rm -rf $(TARGET_FOLDER)/paper.native
 	rm -rf $(TARGET_FOLDER)/paper.pdf
 	rm -rf $(TARGET_FOLDER)/paper.preprint
+	rm -rd $(TARGET_FOLDER)/paper.arxiv.tex

README.md

@@ -15,7 +15,7 @@ the mounted folder, is expected as the only argument.
 
 - The Docker image will generate PDF and JATS files by default. To
 select specific output formats to be generated use the `-o` flag.
-Supported options are: `pdf`, `jats`, `html`, `crossref`, `cff`, and `preprint`. To get multiple outputs
+Supported options are: `pdf`, `jats`, `html`, `crossref`, `cff`, `preprint`, and `arxiv`. To get multiple outputs
 use a comma separated list.
 - By default PDF files will be compiled in _draft mode_ to include a draft
 watermark and linenumbers. To create a _production_ PDF add the `-p` flag.
@@ -45,7 +45,7 @@ variable. So if the paper Markdown source is in file
 
 All supported publishing formats are generated by default, but you
 can select a specific format to be generated by passing it as an
-argument. Available options: `html`, `pdf`, `jats`, `crossref`, `cff`, and `preprint`.
+argument. Available options: `html`, `pdf`, `jats`, `crossref`, `cff`, `preprint`, and `arxiv`.
 
 E.g., to generate only a PDF file, the command would be
 

data/defaults/arxiv.tex.yaml

@@ -0,0 +1,14 @@
+to: latex
+output-file: paper.arxiv.tex
+filters:
+  - type: lua
+    path: add-images.lua
+  - type: lua
+    path: draft.lua
+variables:
+  arxiv: true
+  # styling options
+  colorlinks: true
+  linkcolor: '[rgb]{0.0, 0.5, 1.0}'
+  urlcolor: '[rgb]{0.0, 0.5, 1.0}'
+

data/templates/default.latex

@@ -58,7 +58,12 @@ $endif$
     >>
   ]
 }
+
+$if(arxiv)$
+$-- \pdfvariable omitcidset=* requires lualatex but arxiv.org only does pdflatex.
+$else$
 \pdfvariable omitcidset=1
+$endif$
 \usepackage{caption}
 \usepackage{orcidlink}
 \usepackage{tcolorbox}
@@ -134,7 +139,11 @@ $endif$
 \fancyhf{}
 %\renewcommand{\headrulewidth}{0.50pt}
 \renewcommand{\headrulewidth}{0pt}
+$if(arxiv)$
+$-- arxiv submissions don't get journal's logo
+$else$
 \fancyhead[L]{\hspace{-0.75cm}\includegraphics[width=5.5cm]{$logo_path$}}
+$endif$
 \fancyhead[C]{}
 \fancyhead[R]{}
 \renewcommand{\footrulewidth}{0.25pt}
@@ -246,8 +255,12 @@ $endif$
 %% Font settings
 \usepackage{fontsetup} % Lazy way to get proper Greek lowercase glyphs
 
+$if(arxiv)$
+$-- \setmonofont requires lualatex but arxiv.org only does pdflatex.
+$else$
 % Use Hack https://sourcefoundry.org/hack/
 \setmonofont{Hack}
+$endif$
 
 $if(colorlinks)$
 \PassOptionsToPackage{usenames,dvipsnames}{color} % color is loaded by hyperref
@@ -426,11 +439,23 @@ $endif$
   %\hrule
   \sffamily\small
 
+  $if(arxiv)$
+  {\bfseries Preprint:} Prepared for submission to $journal.title$
+  $else$
   {\bfseries DOI:} \href{https://doi.org/$article.doi$}{\color{linky}{$article.doi$}}
+  $endif$
 
   \vspace{2mm}
   $if(retraction)$
   $-- Retraction notices don't show Software info
+  $elseif(arxiv)$
+  {\bfseries Software}
+  \begin{itemize}
+    \setlength\itemsep{0em}
+    \item \href{$software_repository_url$}{\color{linky}{Repository}} \ExternalLink
+  \end{itemize}
+
+  \vspace{2mm}
   $else$
   {\bfseries Software}
   \begin{itemize}
@@ -443,7 +468,9 @@ $endif$
   \vspace{2mm}
   $endif$
 
-$if(joss)$
+$if(arxiv)$
+$-- arxiv submissions don't get Editor, Reviewer, etc
+$elseif(joss)$
   $if(retraction)$
   $-- Retraction notices don't show Editor/Reviewers info
   $else$
@@ -469,10 +496,13 @@ $endif$
 
   $if(retraction)$
   $-- Retraction notices don't have submission date
+  {\bfseries Published:} $published$
+  $elseif(arxiv)$
+  $-- arxiv submissions won't necessarily have journal submission date
   $else$
   {\bfseries Submitted:} $submitted$\\
-  $endif$
   {\bfseries Published:} $published$
+  $endif$
 
   \vspace{2mm}
   {\bfseries License}\\