Migrate LaTeX to XeTeX

apps/treasury/templates/treasury/invoice_sample.tex

@@ -1,22 +1,14 @@
 {% load escape_tex %}
+\documentclass[a4paper,11pt]{article}
 
-\nonstopmode
-\documentclass[11pt]{article}
-
-\usepackage[french]{babel}
-\usepackage[T1]{fontenc}
-\usepackage[utf8]{inputenc}
-\usepackage[a4paper]{geometry}
-%\usepackage{bera}
+\usepackage{fontspec}
+\usepackage{geometry}
 \usepackage{graphicx}
 \usepackage{fancyhdr}
 \usepackage{fp}
-\usepackage{transparent}
 \usepackage{eso-pic}
 \usepackage{ifthen}
 
-\DeclareUnicodeCharacter{00B0}{$^\circ$}
-
 \def\TVA{0}    % Taux de la TVA
 
 \def\TotalHT{0}
@@ -60,7 +52,8 @@
         \parbox[b][\paperheight]{\paperwidth}{%
             \vfill
             \centering
-            {\transparent{0.1}\includegraphics[width=\textwidth]{../../apps/treasury/static/img/{{ obj.bde }}}}%
+            %FIXME remove ".png" on obj.bde
+            %\includegraphics[width=\textwidth]{../../apps/treasury/static/img/{{ obj.bde }}_bg.jpg};
             \vfill
         }
     }

apps/treasury/tests/test_treasury.py

@@ -1,6 +1,5 @@
 # Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
-from unittest import skip
 
 from django.contrib.auth.models import User
 from django.core.exceptions import ValidationError
@@ -143,7 +142,6 @@ class TestInvoices(TestCase):
         self.assertRedirects(response, reverse("treasury:invoice_list"), 302, 200)
         self.assertFalse(Invoice.objects.filter(pk=self.invoice.id).exists())
 
-    @skip("LaTeX is buggy in the CI")
     def test_invoice_render_pdf(self):
         """
         Generate the PDF file of an invoice.

apps/treasury/views.py

@@ -209,7 +209,7 @@ class InvoiceRenderView(LoginRequiredMixin, View):
             # The file has to be rendered twice
             for ignored in range(2):
                 error = subprocess.Popen(
-                    ["pdflatex", "-interaction=nonstopmode", "invoice-{}.tex".format(pk)],
+                    ["xelatex", "-interaction=nonstopmode", "invoice-{}.tex".format(pk)],
                     cwd=tmp_dir,
                     stdin=open(os.devnull, "r"),
                     stderr=open(os.devnull, "wb"),