From 5aa0dd867efaabd593e0fda0198d066e0e4f2e9d Mon Sep 17 00:00:00 2001
From: Maxime Bombar <bombar@crans.org>
Date: Mon, 15 Oct 2018 03:14:37 +0200
Subject: [PATCH] [Printer] Function to create a booklet from a pdf

---
 apt_requirements.txt |  1 +
 printer/utils.py     | 19 ++++++++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/apt_requirements.txt b/apt_requirements.txt
index 2a5672ee..c33fe7fb 100644
--- a/apt_requirements.txt
+++ b/apt_requirements.txt
@@ -18,3 +18,4 @@ fonts-font-awesome
 graphviz
 git
 poppler-utils
+texlive-extra-utils
diff --git a/printer/utils.py b/printer/utils.py
index fffec47d..91b7e669 100644
--- a/printer/utils.py
+++ b/printer/utils.py
@@ -1,5 +1,5 @@
 import subprocess
-
+import os
 
 def user_printing_path(instance, filename):
     """
@@ -35,3 +35,20 @@ def pdfinfo(file_path):
                 output[label] = _extract(line)
 
     return output
+
+
+def pdfbook(file_path):
+    """
+    Creates a booklet from a pdf
+    requires texlive-extra-utils
+    """
+    _dir = os.path.dirname(file_path)
+    _fname = os.path.basename(file_path)
+    newfile = os.path.join(_dir, "pdfbook_%s" % (_fname,))
+    check_output(
+        ['/usr/bin/pdfbook',
+         '--short-edge',
+         file_path,
+         '-o', newfile,
+        ])
+    return newfile