From 2b58efe8f69b74c1c705404d57de1e83e80f4125 Mon Sep 17 00:00:00 2001
From: David Runge <dave@sleepmap.de>
Date: Thu, 8 Jun 2017 19:43:13 +0200
Subject: bin/tex2pdf: Rewrite, using safe mode and functions. Redirecting
 output to standard out instead of log file.

---
 bin/tex2pdf | 137 +++++++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 104 insertions(+), 33 deletions(-)

(limited to 'bin/tex2pdf')

diff --git a/bin/tex2pdf b/bin/tex2pdf
index a7c367e..021682b 100755
--- a/bin/tex2pdf
+++ b/bin/tex2pdf
@@ -1,33 +1,104 @@
-#!/bin/bash
-logdestination="$HOME/.log/tex2pdf.log"
-already_open=$(ps aux | grep "$1.pdf" | grep -v "grep")
-rm -rf $logdestination
-touch $logdestination
-echo "tex2pdf called with $1.tex">>$logdestination
-echo "#####################################################">>$logdestination
-echo "################## pdflatex, run #1 #################">>$logdestination
-echo "#####################################################">>$logdestination
-pdflatex -interaction=nonstopmode $1.tex>>$logdestination
-echo "bibtex:">>$logdestination
-bibtex $1.aux>>$logdestination
-echo "#####################################################">>$logdestination
-echo "################## pdflatex, run #2 #################">>$logdestination
-echo "#####################################################">>$logdestination
-pdflatex -interaction=nonstopmode $1.tex>>$logdestination
-echo "####### ##############################################">>$logdestination
-echo "################## pdflatex, run #3 #################">>$logdestination
-echo "#####################################################">>$logdestination
-pdflatex -interaction=nonstopmode $1.tex>>$logdestination
-echo "#####################################################">>$logdestination
-echo "Launching mupdf with $1.pdf.">>$logdestination
-
-if [ -n "$already_open" ]; then
-  kill "$(echo $already_open | awk '{print $2}')"
-  echo "Killing pid $(echo $already_open | awk '{print $2}'), which has $1.pdf open already." >>$logdestination
-fi
-mupdf $1.pdf &
-
-echo "#####################################################">>$logdestination
-echo "Removing aux,bbl,blg,dvi,lof,log,lot,nav,out,snm,toc.">>$logdestination
-echo "Current directory: $(pwd) and children of depth 1.">>$logdestination
-rm -f *.{aux,bbl,bcf,blg,dvi,lof,log,lot,nav,out,run.xml,snm,toc,vrb} */*.{aux,bbl,bcf,blg,dvi,lof,log,lot,nav,out,run.xml,snm,toc,vrb}
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+
+initial_pwd=$(pwd)
+filename=""
+dirname=""
+mupdf_pid="0"
+input_suffix=".tex"
+probe_suffix="tex"
+output_suffix=".pdf"
+
+function get_filename()
+{
+  local base=$(basename ${1})
+  filename="${base%.*}"
+}
+
+function get_dirname()
+{
+  dirname="$(dirname ${1})"
+}
+
+function probe_extension()
+{
+  local extension="${1##*.}"
+  if [ ${extension} != ${probe_suffix} ]; then
+    echo "File extension (${extension}) is not ${probe_suffix}. Exiting..."
+    exit 1
+  fi
+  return 0
+}
+
+function probe_tools()
+{
+  if [ ! -x /usr/bin/pdflatex ]; then
+    echo "/usr/bin/pdflatex not available. Exiting..."
+    exit 1
+  fi
+  if [ ! -x /usr/bin/bibtex ]; then
+    echo "/usr/bin/bibtex not available. Exiting..."
+    exit 1
+  fi
+  if [ ! -x /usr/bin/mupdf ]; then
+    echo "/usr/bin/mupdf not available. Exiting..."
+    exit 1
+  fi
+  return 0
+}
+
+function create_pdf()
+{
+  cd ${dirname}
+  set +e
+  pdflatex \
+    -interaction=nonstopmode \
+    ${filename}${input_suffix} > /dev/null
+  bibtex ${filename}.aux
+  pdflatex \
+    -interaction=nonstopmode \
+    ${filename}${input_suffix} > /dev/null
+  pdflatex \
+    -interaction=nonstopmode \
+    ${filename}${input_suffix}
+  set -e
+  cd ${initial_pwd}
+  return 0
+}
+
+function check_mupdf_pid()
+{
+  set +e
+  mupdf_pid=$(ps aux | grep "mupdf ${dirname}/${filename}${output_suffix}" | grep -v "grep" | awk '{print $2}')
+  set -e
+}
+
+function show_pdf()
+{
+  check_mupdf_pid
+  echo "mupdf: ${dirname}/${filename}${output_suffix}."
+  if [ ! -z $mupdf_pid ]; then
+    kill ${mupdf_pid}
+  fi
+  mupdf ${dirname}/${filename}${output_suffix} &
+}
+
+function cleanup()
+{
+  rm -f ${dirname}/*.{aux,bbl,bcf,blg,dvi,idx,lof,log,lot,nav,out,run.xml,snm,toc,vrb} \
+    ${dirname}/*/*.{aux,bbl,bcf,blg,dvi,idx,lof,log,lot,nav,out,run.xml,snm,toc,vrb} \
+    *.{aux,bbl,bcf,blg,dvi,idx,lof,log,lot,nav,out,run.xml,snm,toc,vrb} \
+    */*.{aux,bbl,bcf,blg,dvi,idx,lof,log,lot,nav,out,run.xml,snm,toc,vrb}
+}
+
+probe_extension $1
+get_filename $1
+get_dirname $1
+echo "tex2pdf: Converting $filename$input_suffix to $filename$output_suffix."
+probe_tools
+create_pdf
+cleanup
+show_pdf
+
+exit 0
-- 
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