add generated python bindings (fixes #14)

.gitignore

@@ -14,3 +14,10 @@ tags
 *.exp
 /test/test_suite
 /test/oppai_test
+/swig/**/*.c
+/swig/*/*.i
+/swig/python/oppai.egg-info
+/swig/python/build
+/swig/python/oppai.py
+*.whl
+*.pyc

README.md

@@ -18,6 +18,7 @@ to taiko).
 - [installing (osx)](#installing-osx)
 - [usage](#usage)
 - [implementations for other programming languages](#implementations-for-other-programming-languages)
+- [bindings for other programming languages](#bindings-for-other-programming-languages)
 - [oppai-ng vs old oppai](#oppai-ng-vs-old-oppai)
 - [compile from source (windows)](#compile-from-source-windows)
 - [using oppai as a library or making bindings](#using-oppai-as-a-library-or-making-bindings)
@@ -98,8 +99,6 @@ If you feel like making your own implementation and want it listed
 here, open an issue or pull request. the requirement is that it
 should pass the same test suite that oppai-ng passes.
 
-note: these aren't just native bindings unless stated otherwise.
-
 * [ojsama (javascript)](https://github.com/Francesco149/ojsama)
 * [koohii (java)](https://github.com/Francesco149/koohii) . this
   is currently being used in tillerino.
@@ -108,6 +107,14 @@ note: these aren't just native bindings unless stated otherwise.
 * [OppaiSharp (C#)](https://github.com/HoLLy-HaCKeR/OppaiSharp)
   (by HoLLy)
 
+# bindings for other programming languages
+thanks to swig it's trivial to generate native bindings for other
+programming languages. bindings are an interface to the C code, meaning
+that you get basically the same performance as C by sacrificing some
+portability
+
+* [python](https://github.com/Francesco149/oppai-ng/swig/python)
+
 # oppai-ng vs old oppai
 executable size is around 7 times smaller:
 ```sh

swig/README.md

@@ -0,0 +1,17 @@
+these are maintainer instructions, check the readme's in the binding
+directories for user guides
+
+# requirements
+* swig
+* docker
+* twine (pip)
+
+# building all bindings
+```sh
+./build.sh
+```
+
+# publishing all bindings
+```sh
+PUBLISH=1 ./build.sh
+```

swig/build.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+runall() {
+  for d in ./*/; do
+    [ "$d" = "." ] && continue
+    cd "$d"
+    ./build.sh || return $?
+    [ ! -z $PUBLISH ] && ./publish.sh
+    cd ..
+  done
+}
+
+dir="$(dirname "$0")"
+olddir="$(pwd)"
+cd "$dir"
+runall
+res=$?
+cd "$olddir"
+exit $res

swig/oppai.i

@@ -0,0 +1,8 @@
+%module oppai
+%feature("autodoc", "3");
+%apply int *OUTPUT {int*}
+%{
+#define OPPAI_IMPLEMENTATION
+#include "oppai.c"
+%}
+#include "oppai.c"

swig/python/README.rst

@@ -0,0 +1,32 @@
+osu! pp and difficulty calculator. automatically generated C bindings for
+https://github.com/Francesco149/oppai-ng
+
+usage
+===========
+.. code-block:: sh
+
+    pip install oppai
+
+
+.. code-block:: python
+
+    #!/usr/bin/env python
+
+    import sys
+    from oppai import *
+
+    ez = ezpp_new()
+    ezpp(ez, sys.argv[1])
+    print("%g pp" % ezpp_pp(ez))
+    ezpp_free(ez)
+
+
+.. code-block:: sh
+
+    ./example.py /path/to/file.osu
+
+.. code-block:: sh
+
+    python -c 'help("oppai")'
+
+for a list of functions, or just read the top of oppai.c for better doc

swig/python/build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+rm -rf ./dist
+cp ../../oppai.c .
+cp ../oppai.i .
+swig -python -includeall oppai.i || exit
+for img in quay.io/pypa/manylinux1_x86_64 quay.io/pypa/manylinux1_i686; do
+  docker run --user 1000:1000 --rm -v $(pwd):/io -w /io $img \
+    ./build_wheels.sh || exit
+done

swig/python/build_wheels.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+# this is meant to be used from docker
+
+rm *.so
+for pybin in /opt/python/*/bin
+do
+  "$pybin/python" ./setup.py build_ext --inplace || exit
+  "$pybin/pip" wheel . -w dist/ || exit
+done
+
+"$pybin/python" ./setup.py sdist || exit
+
+for w in dist/*linux_*.whl; do
+  auditwheel repair "$w" -w dist/ || exit
+done
+rm dist/*linux_*.whl

swig/python/examples/basic.py

@@ -0,0 +1,9 @@
+#!/usr/bin/env python
+
+import sys
+from oppai import *
+
+ez = ezpp_new()
+ezpp(ez, sys.argv[1])
+print("%g pp" % ezpp_pp(ez))
+ezpp_free(ez)

swig/python/examples/reuse.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+
+import sys
+from oppai import *
+
+ez = ezpp_new()
+ezpp_set_autocalc(ez, 1)
+for osufile in sys.argv[1:]:
+  ezpp(ez, osufile)
+  print("%s - %s [%s]" % (ezpp_artist(ez), ezpp_title(ez), ezpp_version(ez)))
+  print("%g stars" % ezpp_stars(ez))
+  for acc in range(95, 101):
+    ezpp_set_accuracy_percent(ez, acc)
+    print("%g%% -> %g pp" % (acc, ezpp_pp(ez)))
+  print("")
+ezpp_free(ez)

swig/python/publish.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+twine upload dist/*

swig/python/setup.cfg

@@ -0,0 +1,2 @@
+[build_ext]
+swig-opts=-includeall

swig/python/setup.py

@@ -0,0 +1,44 @@
+import os
+
+try:
+    from setuptools import setup, Extension
+except ImportError:
+    from distutils.core import setup, Extension
+
+try:
+  from oppai import oppai_version_str
+except Exception:
+  def oppai_version_str():
+    return "INVALID"
+
+oppai_classifiers = [
+    "Programming Language :: Python :: 2",
+    "Programming Language :: Python :: 3",
+    "Intended Audience :: Developers",
+    "License :: Public Domain",
+    "Topic :: Software Development :: Libraries",
+    "Topic :: Utilities",
+]
+
+f = open("README.rst", "r")
+oppai_readme = f.read()
+f.close()
+
+oppai_sources=['oppai.i']
+if os.system('swig') != 0:
+  oppai_sources=['oppai_wrap.c', 'oppai.c']
+
+setup(
+    name="oppai",
+    version=oppai_version_str(),
+    author="Franc[e]sco",
+    author_email="lolisamurai@tfwno.gf",
+    url="https://github.com/Francesco149/oppai-ng",
+    ext_modules=[Extension('_oppai', oppai_sources)],
+    py_modules=["oppai"],
+    description="osu! pp and difficulty calculator, C bindings",
+    long_description=oppai_readme,
+    license="Unlicense",
+    classifiers=oppai_classifiers,
+    keywords="osu! osu"
+)