Create a uwsgi script in addition to pyuwsgi

Makes pyuwsgi a drop-in replacement for uwsgi, similar to
psycopg2-binary and psycopg2. Discussion here: unbit/uwsgi#1864 (comment)

Using my own copy of the upstream `setup.pyuwsgi.py` for easier
management of PyPI details. I don't have commit access to unbit/uwsgi.

.travis.yml

@@ -11,7 +11,7 @@ env:
         - TEST_DEPENDS="pytest"
         # Use this to add a pre-release version to the end of the uWSGI version
         # e.g., a4, b1
-        - APPEND_VERSION=
+        - APPEND_VERSION=.post0
         # Exclude SSL from the wheel builds
         - UWSGI_PROFILE=pyuwsginossl
         - PLAT=x86_64

patch-uwsgi-packaging.sh

@@ -5,9 +5,7 @@ set -euf -o pipefail
 SRC=$1
 APPEND_VERSION=${APPEND_VERSION:-""}
 
-mv $SRC/setup.pyuwsgi.py $SRC/setup.py
-sed -i.bak 's/uwsgiconfig\.uwsgi_version/uwsgiconfig.uwsgi_version + "'$APPEND_VERSION'"/' $SRC/setup.py
-rm $SRC/setup.py.bak
+cp setup.py $SRC/setup.py
 cp $SRC/buildconf/pyuwsgi.ini $SRC/buildconf/pyuwsginossl.ini
 echo "ssl = false" >> $SRC/buildconf/pyuwsginossl.ini
 rm $SRC/PKG-INFO

setup.py

@@ -0,0 +1,203 @@
+# encoding: utf-8
+
+"""
+This is a hack allowing you installing
+uWSGI and uwsgidecorators via pip and easy_install
+since 1.9.11 it automatically detects pypy
+"""
+
+import os
+import sys
+import errno
+import shlex
+import uwsgiconfig
+
+from setuptools import setup
+from setuptools.command.build_ext import build_ext
+from distutils.core import Extension
+
+
+class uWSGIBuildExt(build_ext):
+
+    UWSGI_NAME = 'pyuwsgi'
+    UWSGI_PLUGIN = 'pyuwsgi'
+    UWSGI_PROFILE = 'pyuwsgi'
+
+    def build_extensions(self):
+        self.uwsgi_setup()
+        # XXX: needs uwsgiconfig fix
+        self.uwsgi_build()
+        if 'UWSGI_USE_DISTUTILS' not in os.environ:
+            # XXX: needs uwsgiconfig fix
+            # uwsgiconfig.build_uwsgi(self.uwsgi_config)
+            return
+
+        else:
+            # XXX: needs uwsgiconfig fix
+            os.unlink(self.uwsgi_config.get('bin_name'))
+
+        # FIXME: else build fails :(
+        for baddie in set(self.compiler.compiler_so) & set(('-Wstrict-prototypes',)):
+            self.compiler.compiler_so.remove(baddie)
+
+        build_ext.build_extensions(self)
+
+    def uwsgi_setup(self):
+        profile = os.environ.get('UWSGI_PROFILE') or 'buildconf/%s.ini' % self.UWSGI_PROFILE
+
+        if not profile.endswith('.ini'):
+            profile = profile + '.ini'
+        if '/' not in profile:
+            profile = 'buildconf/' + profile
+
+        # FIXME: update uwsgiconfig to properly set _EVERYTHING_!
+        config = uwsgiconfig.uConf(profile)
+        # insert in the beginning so UWSGI_PYTHON_NOLIB is exported
+        # before the python plugin compiles
+        ep = config.get('embedded_plugins').split(',')
+        if self.UWSGI_PLUGIN in ep:
+            ep.remove(self.UWSGI_PLUGIN)
+        ep.insert(0, self.UWSGI_PLUGIN)
+        config.set('embedded_plugins', ','.join(ep))
+        config.set('as_shared_library', 'true')
+        config.set('bin_name', self.get_ext_fullpath(self.UWSGI_NAME))
+        try:
+            os.makedirs(os.path.dirname(config.get('bin_name')))
+        except OSError as e:
+            if e.errno != errno.EEXIST:
+                raise
+
+        self.uwsgi_profile = profile
+        self.uwsgi_config = config
+
+    def uwsgi_build(self):
+        uwsgiconfig.build_uwsgi(self.uwsgi_config)
+
+        # XXX: merge uwsgi_setup (see other comments)
+        for ext in self.extensions:
+            if ext.name == self.UWSGI_NAME:
+                ext.sources = [s + '.c' for s in self.uwsgi_config.gcc_list]
+                ext.library_dirs = self.uwsgi_config.include_path[:]
+                ext.libraries = list()
+                ext.extra_compile_args = list()
+
+                for x in uwsgiconfig.uniq_warnings(
+                    self.uwsgi_config.ldflags + self.uwsgi_config.libs,
+                ):
+                    for y in shlex.split(x):
+                        if y.startswith('-l'):
+                            ext.libraries.append(y[2:])
+                        elif y.startswith('-L'):
+                            ext.library_dirs.append(y[2:])
+
+                for x in self.uwsgi_config.cflags:
+                    for y in shlex.split(x):
+                        if y:
+                            ext.extra_compile_args.append(y)
+
+
+LONG_DESCRIPTION = """
+# The uWSGI server as a Python module
+
+## Install
+
+```
+pip install pyuwsgi
+```
+
+## Run
+
+uWSGI will get installed to your Python path with a console script named `pyuwsgi`. To
+make it a full drop-in replacement it will install a script named `uwsgi` as well.
+
+You can also call it directly in your Python code with a list of valid uWSGI options:
+
+```python
+import pyuwsgi
+pyuwsgi.run(["--help"])
+```
+
+## Differences from uWSGI
+
+This is built from uWSGI's source without any modifications.
+A different [`setup.py`](https://github.com/unbit/uwsgi/blob/uwsgi-2.0/setup.pyuwsgi.py)
+is used to make the project a friendlier part of the Python ecosystem. It allows it
+to be imported as a Python module and distributed using the
+[wheel format](https://www.python.org/dev/peps/pep-0427/). The pre-packaged wheels
+include the following common libraries used by uWSGI:
+
+* [zlib](https://zlib.net/)
+* [pcre](https://www.pcre.org/)
+* [jansson](http://www.digip.org/jansson/)
+
+SSL is intentionally excluded for security reasons. If you need SSL support, you can
+force a wheel to be built locally with the `pip` flag `--no-binary=pyuwsgi`.
+
+In addition to the default plugins, the [`stats_pusher_statsd`](https://uwsgi-docs.readthedocs.io/en/latest/Metrics.html#statsd)
+plugin is included by default in `pyuwsgi` where it is typically optional for uWSGI.
+
+The full uWSGI documentation can be found at
+[https://uwsgi-docs.readthedocs.org](https://uwsgi-docs.readthedocs.org).
+
+## License
+
+uWSGI is licensed [GPLv2](https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt) with
+a [linking exception](https://en.wikipedia.org/wiki/GPL_linking_exception) which means
+you are allowed to use uWSGI (or pyuwsgi) unmodified in a proprietary or otherwise non-GPL
+licensed project without invoking the GPL on the rest of the code.
+
+The [full license](https://github.com/unbit/uwsgi/blob/uwsgi-2.0/LICENSE) can be found
+on GitHub.
+
+---
+
+[![Lincoln Loop](https://cldup.com/gyNz5rfTkR.png)](https://lincolnloop.com)
+
+`pyuwsgi` is sponsored by [Lincoln Loop](https://lincolnloop.com).
+
+[![Unbit](https://cldup.com/TTNag1Zlcw.png)](http://unbit.com/)
+
+`uwsgi` is the creation of [Unbit](http://unbit.com/).
+
+"""
+
+setup(
+    name='pyuwsgi',
+    license='GPL2',
+    version=uwsgiconfig.uwsgi_version + "",
+    author='Unbit',
+    author_email='[email protected]',
+    description='The uWSGI server',
+    url='https://uwsgi-docs.readthedocs.io/en/latest/',
+    long_description=LONG_DESCRIPTION,
+    long_description_content_type="text/markdown",
+    cmdclass={
+        'build_ext': uWSGIBuildExt,
+        },
+    py_modules=[
+        'uwsgidecorators',
+        ],
+    ext_modules=[
+        Extension('pyuwsgi', sources=[]),
+        ],
+    entry_points={
+        'console_scripts': ['pyuwsgi=pyuwsgi:run', 'uwsgi=pyuwsgi:run'],
+        },
+    classifiers=[
+        "Development Status :: 4 - Beta",
+        "Environment :: Web Environment",
+        "License :: OSI Approved :: GNU General Public License v2 (GPLv2)",
+        "Operating System :: MacOS :: MacOS X",
+        "Operating System :: POSIX",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3.4",
+        "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Topic :: Internet :: WWW/HTTP",
+        "Topic :: Internet :: WWW/HTTP :: WSGI",
+        "Topic :: Internet :: WWW/HTTP :: WSGI :: Server",
+        "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
+        ]
+    )