hooks: add hook for z3c.rml

Add a hook for `z3c.rml` that collects the required subset of TTF
fonts bundled with `reportlab` package. The latter might be used
without its bundled fonts, and some of them have restrictive
license (e.g., DarkGarden), so instead of having a hook for
`reportlab` that collects all fonts fron `reportlab.fonts`,
we collect the required subset (Bitstream Vera fonts) in the
`z3c.rml` hook.

news/674.new.rst

@@ -0,0 +1,2 @@
+Add a hook for ``z3c.rml`` that collects the required subset of Bitstream
+Vera TTF fonts from the ``reportlab`` package.

requirements-test-libraries.txt

@@ -161,6 +161,7 @@ gmsh==4.11.1
 sspilib==0.1.0
 rlp==4.0.0
 eth-rlp==1.0.0
+z3c.rml==4.4.0
 
 # ------------------- Platform (OS) specifics
 

src/_pyinstaller_hooks_contrib/hooks/stdhooks/hook-z3c.rml.py

@@ -0,0 +1,25 @@
+# ------------------------------------------------------------------
+# Copyright (c) 2023 PyInstaller Development Team.
+#
+# This file is distributed under the terms of the GNU General Public
+# License (version 2.0 or later).
+#
+# The full license is available in LICENSE.GPL.txt, distributed with
+# this software.
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+# ------------------------------------------------------------------
+
+from PyInstaller.utils.hooks import collect_data_files
+
+# `z3c.rml` uses Bitstream Vera TTF fonts from the `reportlab` package. As that package can be used without the bundled
+# fonts and as some of the bundled fonts have restrictive license (e.g., DarkGarden), we collect the required subset
+# of fonts here, instead of collecting them all in a hook for `reportlab`.
+datas = collect_data_files(
+    "reportlab",
+    includes=[
+        "fonts/00readme.txt",
+        "fonts/bitstream-vera-license.txt",
+        "fonts/Vera*.ttf",
+    ],
+)

src/_pyinstaller_hooks_contrib/tests/test_libraries.py

@@ -1917,3 +1917,31 @@ def test_eth_rlp(pyi_builder):
     pyi_builder.test_source("""
         import eth_rlp
     """)
+
+
+@importorskip('z3c.rml')
+def test_z3c_rml_rml2pdf(pyi_builder):
+    pyi_builder.test_source("""
+        from z3c.rml import rml2pdf
+
+        rml = '''
+        <!DOCTYPE document SYSTEM "rml.dtd" >
+        <document filename="test.pdf">
+          <template showBoundary="1">
+            <!--Debugging is now turned on, frame outlines -->
+            <!--will appear on the page -->
+            <pageTemplate id="main">
+              <!-- two frames are defined here: -->
+              <frame id="first" x1="100" y1="400" width="150" height="200" />
+              <frame id="second" x1="300" y1="400" width="150" height="200" />
+            </pageTemplate>
+          </template>
+          <stylesheet><!-- still empty...--></stylesheet>
+          <story>
+            <para>Welcome to RML.</para>
+          </story>
+        </document>
+        '''
+
+        pdf_bytes = rml2pdf.parseString(rml)
+    """)