From 7bef4bc5eee200960ee0870974d922e763c16882 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Wed, 8 May 2019 15:23:30 +0100
Subject: Rename pdf prep tool as it creates the pdf too now

---
 dir-to-pdf.sh | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100755 dir-to-pdf.sh

(limited to 'dir-to-pdf.sh')

diff --git a/dir-to-pdf.sh b/dir-to-pdf.sh
new file mode 100755
index 0000000..399bc16
--- /dev/null
+++ b/dir-to-pdf.sh
@@ -0,0 +1,70 @@
+#!/bin/sh
+usage="Usage: $0 indir
+
+Creates a PDF from image and hocr files in indir, saving it to indir.pdf.
+
+The necessary files are first copied to a temporary directory where
+they are renamed and reformatted for the hocr-pdf tool from hocr-tools.
+
+The PDF is then created with hocr-pdf, and the temporary directory is
+removed."
+
+test $# -ne 1 && echo "$usage" && exit 1
+
+# All possible training files to check for
+TRAININGS="rescribealphav4 rescribealphav5"
+
+# Set image compression and dpi
+QUALITY=0
+DPI=600
+
+if command -v gm > /dev/null ; then
+	convert="gm convert"
+elif command -v convert > /dev/null ; then
+	convert="convert"
+else
+	echo "Error: no graphicksmagick or imagemagick found"
+	exit 1
+fi
+
+if ! command -v hocr-pdf > /dev/null ; then
+	echo "Error: no hocr-pdf tool found"
+	exit 1
+fi
+
+if ! test -d "$1"; then
+	echo "Error: $1 does not exist"
+	exit 1
+fi
+
+tmpdir=`mktemp -d`
+if test $? -ne 0 ; then
+	echo "Error: Failed to create temporary directory"
+	exit 1
+fi
+
+mkdir -p "$tmpdir" || exit 1
+
+echo "Copying hocrs and converting pngs from $1 to $tmpdir"
+find "$1" -maxdepth 1 -type f -name '*.unpapered.png' | while read i; do
+	b=`basename "$i" .unpapered.png`
+
+	hocr=""
+	for t in $TRAININGS; do
+		n=`echo "$i" | sed "s/.unpapered.png/_unpapered_$t.hocr/"`
+		test -f "$n" && hocr="$n"
+	done
+	if test -z "$hocr"; then
+		echo "Warning: no corresponding hocr file found for $i, skipping."
+		continue
+	fi
+
+	$convert -quality $QUALITY -density ${DPI}x${DPI} "$i" "$tmpdir/$b.jpg" || exit 1
+	cp "$hocr" "$tmpdir/$b.hocr" || exit 1
+done
+
+echo "Creating PDF"
+hocr-pdf --savefile "$1.pdf" "$tmpdir" || exit 1
+
+echo "Created a PDF at $1.pdf"
+rm -rf "$tmpdir"
-- 
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