From bd383ac0e3a51cf5d3b5c102bbef6745c976a0cb Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Thu, 29 May 2025 23:43:48 +0200
Subject: [PATCH 1/3] python312Packages.weasyprint: cleanup

---
 .../python-modules/weasyprint/default.nix     | 41 ++++++++++---------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/pkgs/development/python-modules/weasyprint/default.nix b/pkgs/development/python-modules/weasyprint/default.nix
index 696bee47ac5f5..1061e7e56f47c 100644
--- a/pkgs/development/python-modules/weasyprint/default.nix
+++ b/pkgs/development/python-modules/weasyprint/default.nix
@@ -1,26 +1,32 @@
 {
-  stdenv,
   lib,
+  stdenv,
   pkgs,
   buildPythonPackage,
-  cffi,
-  cssselect2,
-  fetchPypi,
-  flit-core,
+  fetchFromGitHub,
   fontconfig,
-  fonttools,
   glib,
   harfbuzz,
   pango,
+
+  # build-system
+  flit-core,
+
+  # dependencies
+  cffi,
+  cssselect2,
+  fonttools,
   pillow,
   pydyf,
   pyphen,
+  tinycss2,
+  tinyhtml5,
+
+  # tests
   pytest-cov-stub,
   pytestCheckHook,
-  pythonOlder,
   replaceVars,
-  tinycss2,
-  tinyhtml5,
+  writableTmpDirAsHomeHook,
 }:
 
 buildPythonPackage rec {
@@ -28,12 +34,11 @@ buildPythonPackage rec {
   version = "65.1";
   pyproject = true;
 
-  disabled = pythonOlder "3.9";
-
-  src = fetchPypi {
-    inherit version;
-    pname = "weasyprint";
-    hash = "sha256-EgKBvb1C/6p9flztvjGCos7zbqWtl/6fNX5DvmoeWOo=";
+  src = fetchFromGitHub {
+    owner = "Kozea";
+    repo = "WeasyPrint";
+    tag = "v${version}";
+    hash = "sha256-iSeuRX1dnnrGZbcb1yTxOJPD5kgIWY6oz/0v02QJqSs=";
   };
 
   patches = [
@@ -64,6 +69,7 @@ buildPythonPackage rec {
     pkgs.ghostscript
     pytest-cov-stub
     pytestCheckHook
+    writableTmpDirAsHomeHook
   ];
 
   disabledTests = [
@@ -93,11 +99,6 @@ buildPythonPackage rec {
   # Set env variable explicitly for Darwin, but allow overriding when invoking directly
   makeWrapperArgs = [ "--set-default FONTCONFIG_FILE ${FONTCONFIG_FILE}" ];
 
-  preCheck = ''
-    # Fontconfig wants to create a cache.
-    export HOME=$TMPDIR
-  '';
-
   pythonImportsCheck = [ "weasyprint" ];
 
   meta = {

From 103f8664beeefb344c6772804c99428b458b5bf9 Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Thu, 29 May 2025 23:44:47 +0200
Subject: [PATCH 2/3] python312Packages.weasyprint: add versionCheckHook

---
 pkgs/development/python-modules/weasyprint/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/python-modules/weasyprint/default.nix b/pkgs/development/python-modules/weasyprint/default.nix
index 1061e7e56f47c..77e64d1a00603 100644
--- a/pkgs/development/python-modules/weasyprint/default.nix
+++ b/pkgs/development/python-modules/weasyprint/default.nix
@@ -26,6 +26,7 @@
   pytest-cov-stub,
   pytestCheckHook,
   replaceVars,
+  versionCheckHook,
   writableTmpDirAsHomeHook,
 }:
 
@@ -69,8 +70,10 @@ buildPythonPackage rec {
     pkgs.ghostscript
     pytest-cov-stub
     pytestCheckHook
+    versionCheckHook
     writableTmpDirAsHomeHook
   ];
+  versionCheckProgramArg = "--version";
 
   disabledTests = [
     # needs the Ahem font (fails on macOS)

From 1f3967f132dd023cfb17b008dbbcb8d693bd72b9 Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Thu, 29 May 2025 23:51:03 +0200
Subject: [PATCH 3/3] python312Packages.weasyprint: mark as broken on darwin

---
 pkgs/development/python-modules/weasyprint/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/python-modules/weasyprint/default.nix b/pkgs/development/python-modules/weasyprint/default.nix
index 77e64d1a00603..3767704c8200c 100644
--- a/pkgs/development/python-modules/weasyprint/default.nix
+++ b/pkgs/development/python-modules/weasyprint/default.nix
@@ -111,5 +111,10 @@ buildPythonPackage rec {
     homepage = "https://weasyprint.org/";
     license = lib.licenses.bsd3;
     teams = [ lib.teams.apm ];
+    badPlatforms = [
+      # Fatal Python error: Segmentation fault
+      # "...weasyprint/pdf/fonts.py", line 221 in _harfbuzz_subset
+      lib.systems.inspect.patterns.isDarwin
+    ];
   };
 }