gi_docgen, add new recipe (#13676)

* gi_docgen, add new recipe

creates documentation (checked with latest babl)

* Apply suggestion from @jmairboeck

Co-authored-by: Joachim Mairböck <j.mairboeck@gmail.com>

* Apply suggestion from @jmairboeck

Co-authored-by: Joachim Mairböck <j.mairboeck@gmail.com>

---------

Co-authored-by: Joachim Mairböck <j.mairboeck@gmail.com>

dev-util/gi_docgen/gi_docgen-2025.5.recipe

@@ -0,0 +1,57 @@
+SUMMARY="A documentation generator for GObject-based libraries"
+DESCRIPTION="GI-DocGen is a document generator for GObject-based libraries. GObject is the base \
+type system of the GNOME project. GI-Docgen reuses the introspection data generated by \
+GObject-based libraries to generate the API reference of these libraries, as well as other \
+ancillary documentation."
+HOMEPAGE="https://gnome.pages.gitlab.gnome.org/gi-docgen/"
+COPYRIGHT="2014 John Hawthorn"
+LICENSE="GNU GPL v3"
+REVISION="1"
+SOURCE_URI="https://gitlab.gnome.org/GNOME/gi-docgen/-/archive/$portVersion/gi-docgen-$portVersion.tar.bz2"
+CHECKSUM_SHA256="b501b7b548333e9b043ad75f85272b936727679ec639ae50054399909416c51d"
+SOURCE_DIR="gi-docgen-$portVersion"
+
+ARCHITECTURES="any"
+
+pythonVersion=3.10
+pythonPackage=python${pythonVersion//.}
+
+PROVIDES="
+	$portName = $portVersion
+	cmd:gi_docgen = $portVersion
+	"
+REQUIRES="
+	haiku
+	cmd:python$pythonVersion
+	jinja2_$pythonPackage
+	markdown_$pythonPackage
+	pygments_$pythonPackage
+	setuptools_$pythonPackage
+	typogrify_$pythonPackage
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	setuptools_$pythonPackage
+	"
+BUILD_PREREQUIRES="
+	cmd:python$pythonVersion
+	"
+
+INSTALL()
+{
+	python=python$pythonVersion
+	installLocation=$prefix/lib/$python/vendor-packages/
+	export PYTHONPATH=$installLocation:$PYTHONPATH
+
+	mkdir -p $installLocation
+	rm -rf build
+
+	$python setup.py build install \
+		--root=/ --prefix=$prefix
+
+	mkdir -p $developLibDir $manDir
+	mv $prefix/share/pkgconfig $developLibDir
+	mv $prefix/share/man/man1 $manDir
+	rm -rf $prefix/share
+}