docs: add sphinx / readthedocs configuration

.gitignore

@@ -10,3 +10,4 @@ target
 *.egg-info
 setuptools_rust/version.py
 pyo3
+docs/_build

.readthedocs.yaml

@@ -0,0 +1,7 @@
+version: 2
+
+python:
+  install:
+    - requirements: docs/requirements.txt
+    - method: pip
+      path: .

README.md

@@ -1,12 +1,13 @@
 # Setuptools plugin for Rust extensions
 
-[![Build Status](https://travis-ci.org/PyO3/setuptools-rust.svg?branch=master)](https://travis-ci.org/PyO3/setuptools-rust)
+![example workflow](https://github.com/PyO3/setuptools-rust/actions/workflows/ci.yml/badge.svg)
 [![pypi package](https://badge.fury.io/py/setuptools-rust.svg)](https://badge.fury.io/py/setuptools-rust)
+[![readthedocs](https://readthedocs.org/projects/pip/badge/)](https://setuptools-rust.readthedocs.io/en/latest/)
 [![code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
 
-Setuptools helpers for rust Python extensions implemented with [PyO3](https://github.com/PyO3/pyo3) and [rust-cpython](https://github.com/dgrunwald/rust-cpython).
+Setuptools helpers for Rust Python extensions implemented with [PyO3](https://github.com/PyO3/pyo3) and [rust-cpython](https://github.com/dgrunwald/rust-cpython).
 
-Compile and distribute Python extensions written in rust as easily as if
+Compile and distribute Python extensions written in Rust as easily as if
 they were written in C.
 
 ## Setup
@@ -32,6 +33,9 @@ setup(
 )
 ```
 
+For a complete reference of the options supported by the `RustExtension` class, see the
+[API reference](https://setuptools-rust.readthedocs.io/en/latest/reference.html).
+
 ### MANIFEST.in
 
 This file is required for building source distributions
@@ -129,107 +133,6 @@ You can then upload the `manylinux2014` wheels to pypi using [twine](https://git
 
 It is possible to use any of the `manylinux` docker images: `manylinux1`, `manylinux2010` or `manylinux2014`. (Just replace `manylinux2014` in the above instructions with the alternative version you wish to use.)
 
-## RustExtension
-
-You can define rust extension with RustExtension class:
-
-```python
-RustExtension(
-     name,
-     path="Cargo.toml",
-     args=None,
-     features=None,
-     rustc_flags=None,
-     rust_version=None,
-     quiet=False,
-     debug=None,
-     binding=Binding.PyO3,
-     strip=Strip.No,
-     script=False,
-     native=False,
-     optional=False,
-     py_limited_api=False,
-)
-```
-
-The class for creating rust extensions.
-
-   - param str `name`
-
-     the full name of the extension, including any packages -- ie.
-     *not* a filename or pathname, but Python dotted name. It is
-     possible to specify multiple binaries, if extension uses
-     Binsing.Exec binding mode. In that case first argument has to be
-     dictionary. Keys of the dictionary corresponds to compiled rust
-     binaries and values are full name of the executable inside python
-     package.
-
-   - param str `path`
-
-     path to the Cargo.toml manifest file
-
-   - param \[str\] `args`
-
-     a list of extra argumenents to be passed to cargo.
-
-   - param \[str\] `features`
-
-     a list of features to also build
-
-   - param \[str\] `rustc_flags`
-
-     A list of arguments to pass to rustc, e.g. cargo rustc --features
-     \<features\> \<args\> -- \<rustc\_flags\>
-
-   - param str `rust_version`
-
-     sematic version of rust compiler version -- for example
-     *\>1.14,\<1.16*, default is None
-
-   - param bool `quiet`
-
-     Does not echo cargo's output. default is `False`
-
-   - param bool `debug`
-
-     Controls whether `--debug` or `--release` is passed to cargo. If set
-     to None then build type is auto-detect. Inplace build is debug
-     build otherwise release. Default: `None`
-
-   - param int `binding`
-
-     Controls which python binding is in use.
-     * `Binding.PyO3` uses PyO3
-     * `Binding.RustCPython` uses rust-cpython
-     * `Binding.NoBinding` uses no binding.
-     * `Binding.Exec` build executable.
-
-   - param int `strip`
-
-     Strip symbols from final file. Does nothing for debug build.
-     * `Strip.No` - do not strip symbols (default)
-     * `Strip.Debug` - strip debug symbols
-     * `Strip.All` - strip all symbols
-
-   - param bool `script`
-
-     Generate console script for executable if `Binding.Exec` is used.
-
-   - param bool `native`
-
-     Build extension or executable with "-C target-cpu=native"
-
-   - param bool `optional`
-
-     if it is true, a build failure in the extension will not abort the
-     build process, but instead simply not install the failing
-     extension.
-   - param bool `py_limited_api`
-
-        Same as `py_limited_api` on `setuptools.Extension`. Note that if you
-        set this to True, your extension must pass the appropriate feature
-        flags to pyo3 (ensuring that `abi3` feature is enabled).
-
 ## Commands
 
   - build - Standard build command builds all rust extensions.
@@ -240,5 +143,5 @@ The class for creating rust extensions.
     extensions.
   - tomlgen\_rust - Automatically generate a Cargo.toml manifest based
     on Python package metadata. See the [example
-    project](https://github.com/PyO3/setuptools-rust/tree/master/example_tomlgen)
+    project](https://github.com/PyO3/setuptools-rust/tree/master/examples/tomlgen)
     on GitHub for more information about this command.

docs/Makefile

@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.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 $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/README.rst

@@ -0,0 +1 @@
+.. mdinclude:: ../README.md

docs/conf.py

@@ -0,0 +1,90 @@
+# 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:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- 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.
+
+# -- Project information -----------------------------------------------------
+
+project = 'setuptools-rust'
+copyright = '2021, The PyO3 Contributors'
+author = 'The PyO3 Contributors'
+
+
+# -- 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.ext.napoleon",
+    "sphinx_autodoc_typehints",
+    "sphinx_rtd_theme",
+    "m2r2",
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# 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 = ['_build', 'Thumbs.db', '.DS_Store']
+
+
+# -- 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']
+
+html_theme_options = {
+    'prev_next_buttons_location': None,
+}
+
+# -- Custom HTML link transformation to make documentation links relative --
+
+# This is necessary because the README.md (for example) has links to the latest
+# documentation, but we want them to be relative to the specific docs version.
+
+from sphinx.transforms import SphinxTransform
+
+DOCS_URL = 'https://setuptools-rust.readthedocs.io/en/latest/'
+
+class RelativeDocLinks(SphinxTransform):
+
+    default_priority = 750
+
+    def apply(self):
+        from docutils.nodes import reference, Text
+        baseref = lambda o: (
+            isinstance(o, reference) and
+            o.get('refuri', '').startswith(DOCS_URL))
+        basetext = lambda o: (
+            isinstance(o, Text) and o.startswith(DOCS_URL))
+        for node in self.document.traverse(baseref):
+            target = node['refuri'].replace(DOCS_URL, "", 1)
+            node.replace_attr('refuri', target)
+            for t in node.traverse(basetext):
+                t1 = Text(t.replace(DOCS_URL, "", 1), t.rawsource)
+                t.parent.replace(t, t1)
+        return
+
+# end of class
+
+def setup(app):
+    app.add_transform(RelativeDocLinks)
+    return

docs/index.rst

@@ -0,0 +1,8 @@
+.. toctree::
+   :maxdepth: 2
+   :hidden:
+
+   README
+   reference
+
+.. include:: README.rst

docs/make.bat

@@ -0,0 +1,35 @@
+@ECHO OFF
+
+pushd %~dp0
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set SOURCEDIR=.
+set BUILDDIR=_build
+
+if "%1" == "" goto help
+
+%SPHINXBUILD% >NUL 2>NUL
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.http://sphinx-doc.org/
+	exit /b 1
+)
+
+%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+goto end
+
+:help
+%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+
+:end
+popd

docs/reference.rst

@@ -0,0 +1,8 @@
+API Reference
+=============
+
+.. py:module:: setuptools_rust
+
+.. autoclass:: RustExtension
+.. autoclass:: Binding
+.. autoclass:: Strip

docs/requirements.txt

@@ -0,0 +1,4 @@
+m2r2==0.2.7
+Sphinx==3.5.2
+sphinx-autodoc-typehints==1.11.1
+sphinx-rtd-theme==0.5.1

setuptools_rust/__init__.py

@@ -1,19 +1,20 @@
 from .build import build_rust
 from .check import check_rust
 from .clean import clean_rust
-from .extension import RustExtension
+from .extension import Binding, RustExtension, Strip
 from .test import test_rust
 from .tomlgen import tomlgen_rust, find_rust_extensions
-from .utils import Binding, Strip
 from .version import version as __version__
 
 
 __all__ = (
-    "RustExtension",
     "Binding",
+    "RustExtension",
     "Strip",
+    "build_rust",
     "check_rust",
     "clean_rust",
-    "build_rust",
+    "find_rust_extensions",
     "test_rust",
+    "tomlgen_rust",
 )

setuptools_rust/build.py

@@ -13,10 +13,8 @@
 from subprocess import check_output
 
 from .command import RustCommand
-from .extension import RustExtension
-from .utils import (
-    Binding, Strip, rust_features, get_rust_target_info
-)
+from .extension import Binding, RustExtension, Strip
+from .utils import rust_features, get_rust_target_info
 
 
 class build_rust(RustCommand):