doc: replace epydoc with sphinx-apidoc + sphinx-epytext

Bug: https://bugs.gentoo.org/707820
Signed-off-by: Zac Medico <zmedico@gentoo.org>

5 files changed, 131 insertions, 19 deletions

diff --git a/doc/api/.gitignore b/doc/api/.gitignore
new file mode 100644
index 000000000..796b96d1c
--- /dev/null
+++ b/doc/api/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/doc/api/Makefile b/doc/api/Makefile
new file mode 100644
index 000000000..56420a497
--- /dev/null
+++ b/doc/api/Makefile
@@ -0,0 +1,32 @@
+# Makefile for Sphinx documentation
+#
+
+SPHINX_APIDOC_OPTIONS = members,private-members,undoc-members,show-inheritance,ignore-module-all,inherited-members
+export SPHINX_APIDOC_OPTIONS
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = build
+TOPDIR        = ../..
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+clean:
+	rm -rf $(BUILDDIR) $(SOURCEDIR)/api
+
+$(BUILDDIR)/_sources/portage.rst:
+	mkdir -p "$(BUILDDIR)/_sources"
+	cp -pPR "$(SOURCEDIR)/conf.py" "$(SOURCEDIR)/index.rst" "$(BUILDDIR)/_sources"
+	sphinx-apidoc -TPef -o  "$(BUILDDIR)/_sources" $(TOPDIR)/lib/_emerge
+	sphinx-apidoc -TPef -o  "$(BUILDDIR)/_sources" $(TOPDIR)/lib/portage $(TOPDIR)/lib/portage/tests
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile $(BUILDDIR)/_sources/portage.rst
+	@$(SPHINXBUILD) -M $@ "$(BUILDDIR)/_sources" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/doc/api/conf.py b/doc/api/conf.py
new file mode 100644
index 000000000..f318ca25d
--- /dev/null
+++ b/doc/api/conf.py
@@ -0,0 +1,66 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# This file only contains a selection of the most common options. For a full
+# list see the documentation:
+# http://www.sphinx-doc.org/en/master/config
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+# import os
+# import sys
+# sys.path.insert(0, os.path.abspath('.'))
+
+import os
+from os import path as osp
+import sys
+
+if osp.isfile(osp.abspath(osp.join(osp.dirname(__file__), "../../../../.portage_not_installed"))):
+	sys.path.insert(0, osp.abspath(osp.join(osp.dirname(__file__), "../../../../lib")))
+import portage
+
+# -- Project information -----------------------------------------------------
+
+project = 'portage'
+copyright = '2020, Gentoo Authors'
+author = 'Gentoo Authors'
+
+# The full version, including alpha/beta/rc tags
+release = str(portage.VERSION)
+
+# -- General configuration ---------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+	'sphinx.ext.autodoc',
+	'sphinx_epytext',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+# templates_path = []
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+# exclude_patterns = []
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+html_show_sourcelink = False
+html_theme = 'sphinxdoc'
+
+# 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 = []
+
+autodoc_default_options = dict((opt, True) for opt in
+	filter(None, os.environ.get('SPHINX_APIDOC_OPTIONS', '').split(',')))
diff --git a/doc/api/index.rst b/doc/api/index.rst
new file mode 100644
index 000000000..ffaece6c9
--- /dev/null
+++ b/doc/api/index.rst
@@ -0,0 +1,18 @@
+Portage API Documentation
+=========================
+
+Modules
+=======
+
+.. toctree::
+    :maxdepth: 1
+
+    _emerge
+    portage
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
diff --git a/setup.py b/setup.py
index c62f5f6eb..d337ba49d 100755
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@ import sys
 
 
 # TODO:
-# - smarter rebuilds of docs w/ 'install_docbook' and 'install_epydoc'.
+# - smarter rebuilds of docs w/ 'install_docbook' and 'install_apidoc'.
 
 # Dictionary of scripts.  The structure is
 #   key   = location in filesystem to install the scripts
@@ -135,8 +135,8 @@ class docbook(Command):
 				'-m', 'doc/custom.xsl', f, 'doc/portage.docbook'])
 
 
-class epydoc(Command):
-	""" Build API docs using epydoc. """
+class apidoc(Command):
+	""" Build API docs using apidoc. """
 
 	user_options = [
 	]
@@ -160,14 +160,8 @@ class epydoc(Command):
 			pass
 		process_env['PYTHONPATH'] = pythonpath
 
-		subprocess.check_call(['epydoc', '-o', 'epydoc',
-			'--name', self.distribution.get_name(),
-			'--url', self.distribution.get_url(),
-			'-qq', '--no-frames', '--show-imports',
-			'--exclude', 'portage.tests',
-			'_emerge', 'portage'],
+		subprocess.check_call(['make', '-C', 'doc/api', 'html'],
 			env = process_env)
-		os.remove('epydoc/api-objects.txt')
 
 
 class install_docbook(install_data):
@@ -194,8 +188,8 @@ class install_docbook(install_data):
 		install_data.run(self)
 
 
-class install_epydoc(install_data):
-	""" install_data for epydoc docs """
+class install_apidoc(install_data):
+	""" install_data for apidoc docs """
 
 	user_options = install_data.user_options + [
 		('htmldir=', None, "HTML documentation install directory"),
@@ -210,10 +204,11 @@ class install_epydoc(install_data):
 		install_data.finalize_options(self)
 
 	def run(self):
-		if not os.path.exists('epydoc/index.html'):
-			self.run_command('epydoc')
+		if not os.path.exists('doc/api/build/html/index.html'):
+			self.run_command('apidoc')
 		self.data_files = [
-			(os.path.join(self.htmldir, 'api'), glob.glob('epydoc/*')),
+			(os.path.join(self.htmldir, 'api'), glob.glob('doc/api/build/html/*.html') + glob.glob('doc/api/build/html/*.js')),
+			(os.path.join(self.htmldir, 'api/_static'), glob.glob('doc/api/build/html/_static/*')),
 		]
 		install_data.run(self)
 
@@ -298,8 +293,8 @@ class x_clean(clean):
 		if os.path.isdir('doc/fragment'):
 			remove_tree('doc/fragment')
 
-		if os.path.isdir('epydoc'):
-			remove_tree('epydoc')
+		if os.path.isdir('doc/api/build'):
+			remove_tree('doc/api/build')
 
 	def clean_tests(self):
 		# do not remove incorrect dirs accidentally
@@ -699,11 +694,11 @@ setup(
 		'build_tests': build_tests,
 		'clean': x_clean,
 		'docbook': docbook,
-		'epydoc': epydoc,
+		'apidoc': apidoc,
 		'install': x_install,
 		'install_data': x_install_data,
 		'install_docbook': install_docbook,
-		'install_epydoc': install_epydoc,
+		'install_apidoc': install_apidoc,
 		'install_lib': x_install_lib,
 		'install_scripts': x_install_scripts,
 		'install_scripts_bin': x_install_scripts_bin,