docs: use furo docs theme

numerous improvements over sphinx_rtd_theme, namely automatic dark mode

docs/Makefile

-# Makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line.
-SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build
-SPHINXPROJ    = GWDataFind
-SOURCEDIR     = .
-BUILDDIR      = _build
-
-.PHONY: help html
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-html:
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/conf.py

-# -*- coding: utf-8 -*-
-#
-# gwdatafind documentation build configuration file
+# dqsegdb2 documentation build configuration file
 
-import glob
-import os.path
 import re
 
-from gwdatafind import __version__ as VERSION
+from gwdatafind import __version__ as gwdatafind_version
 
-extensions = [
-    'sphinx.ext.intersphinx',
-    'sphinx.ext.napoleon',
-    'sphinx_automodapi.automodapi',
-    'sphinxarg.ext',
-]
+# -- metadta
 
-#templates_path = ['_templates']
+project = "gwdatafind"
+copyright = "2018-2025, Cardiff University"
+author = "Duncan Macleod"
+release = gwdatafind_version
+version = re.split(r'[\w-]', gwdatafind_version)[0]
 
-source_suffix = '.rst'
+# -- config
 
+source_suffix = '.rst'
 master_doc = 'index'
 
-# General information about the project.
-project = u'gwdatafind'
-copyright = u'2018-2021, Cardiff University'
-author = u'Duncan Macleod'
+default_role = 'obj'
+
+# -- theme
 
-# The short X.Y version.
-version = re.split(r'[\w-]', VERSION)[0]
-# The full version, including alpha/beta/rc tags.
-release = VERSION
+html_theme = "furo"
+pygments_dark_style = "monokai"
 
-# List of patterns, relative to source directory, that match files and
-# directories to ignore when looking for source files.
-# This patterns also effect to html_static_path and html_extra_path
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
 
-# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'monokai'
+# -- extensions
 
-# Intersphinx directory
+extensions = [
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.napoleon",
+    "sphinx_automodapi.automodapi",
+    "sphinx_copybutton",
+    "sphinxarg.ext",
+]
+
+# automodapi
+automodapi_inherited_members = False
+
+# intersphinx
 intersphinx_mapping = {
     "igwn-auth-utils": (
         "https://igwn-auth-utils.readthedocs.io/en/stable/",
@@ -63,49 +62,5 @@ intersphinx_mapping = {
     ),
 }
 
-# The reST default role (used for this markup: `text`) to use for all
-# documents.
-default_role = 'obj'
-
-# napoleon configuration
+# napoleon
 napoleon_use_rtype = False
-
-# Don't inherit in automodapi
-numpydoc_show_class_members = False
-automodapi_inherited_members = False
-
-# -- Options for HTML output ----------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-#
-html_theme = 'sphinx_rtd_theme'
-
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
-
-# Output file base name for HTML help builder.
-htmlhelp_basename = 'gwdatafinddoc'
-
-# -- add static files----------------------------------------------------------
-
-def setup_static_content(app):
-    curdir = os.path.abspath(os.path.dirname(__file__))
-    # configure stylesheets
-    for sdir in html_static_path:
-        staticdir = os.path.join(curdir, sdir)
-
-        # add stylesheets
-        for cssf in glob.glob(os.path.join(staticdir, 'css', '*.css')):
-            app.add_css_file(cssf[len(staticdir)+1:])
-
-        # add custom javascript
-        for jsf in glob.glob(os.path.join(staticdir, 'js', '*.js')):
-            app.add_js_file(jsf[len(staticdir)+1:])
-
-# -- setup --------------------------------------------------------------------
-
-def setup(app):
-    setup_static_content(app)

pyproject.toml

@@ -44,11 +44,12 @@ dynamic = [
 
 [project.optional-dependencies]
 docs = [
+  "furo",
   "numpydoc",
-  "sphinx >= 4.4.0",
+  "Sphinx >= 4.4.0",
   "sphinx-argparse",
   "sphinx_automodapi",
-  "sphinx_rtd_theme",
+  "sphinx-copybutton",
 ]
 test = [
   "pytest >= 2.8.0",