python39Packages.sphinxcontrib-tikz: replace patch by substituteInPlace to prevent apply errors

pkgs/development/python-modules/sphinxcontrib-tikz/binary-paths.patch

@@ -1,22 +0,0 @@
-diff --git a/sphinxcontrib/tikz.py b/sphinxcontrib/tikz.py
-index ee21113..a4f4589 100644
---- a/sphinxcontrib/tikz.py
-+++ b/sphinxcontrib/tikz.py
-@@ -242,7 +242,7 @@ def render_tikz(self, node, libs='', stringsubst=False):
-         tf.write(latex)
-         tf.close()
- 
--        system([self.builder.config.latex_engine, '--interaction=nonstopmode',
-+        system(['@texLive@/bin/pdflatex', '--interaction=nonstopmode',
-                 'tikz-%s.tex' % shasum],
-                self.builder)
- 
-@@ -281,7 +281,7 @@ def render_tikz(self, node, libs='', stringsubst=False):
-                     '-sOutputFile=%s' % outfn, '-r' + resolution + 'x' + resolution,
-                     '-f', 'tikz-%s.pdf' % shasum], self.builder)
-         elif self.builder.config.tikz_proc_suite == "pdf2svg":
--            system(['pdf2svg', 'tikz-%s.pdf' % shasum, outfn], self.builder)
-+            system(['@pdf2svg@/bin/pdf2svg', 'tikz-%s.pdf' % shasum, outfn], self.builder)
-         else:
-             self.builder._tikz_warned = True
-             raise TikzExtError('Error (tikz extension): Invalid configuration '

pkgs/development/python-modules/sphinxcontrib-tikz/default.nix

@@ -16,12 +16,11 @@ buildPythonPackage rec {
     sha256 = "1614a45c960b80009dd42f96689122c9c0781018a0c5ec5828f4cdc5e35b11ad";
   };
 
-  patches = [
-    (substituteAll {
-      src = ./binary-paths.patch;
-      inherit texLive pdf2svg;
-    })
-  ];
+  postPatch = ''
+    substituteInPlace sphinxcontrib/tikz.py \
+      --replace "config.latex_engine" "${texLive}/bin/pdflatex" \
+      --replace "system(['pdf2svg'" "system(['${pdf2svg}/bin/pdf2svg'"
+  '';
 
   propagatedBuildInputs = [ sphinx ];