Allow to build executable and pack with python package

CHANGES.rst

@@ -1,6 +1,12 @@
 CHANGES
 =======
 
+
+0.7.0 (2017-08-11)
+------------------
+
+- Allow to build executable and pack with python package.
+
 - Use PyO3 0.1 for example.
 
 

setup.py

@@ -1,6 +1,6 @@
 from setuptools import setup
 
-version = '0.6.4'
+version = '0.7.0'
 
 
 setup(

setuptools_rust/build.py

@@ -10,7 +10,7 @@
     DistutilsPlatformError, DistutilsSetupError)
 
 from .extension import RustExtension
-from .utils import cpython_feature, get_rust_version
+from .utils import Binding, cpython_feature, get_rust_version
 
 
 class build_rust(Command):
@@ -43,6 +43,8 @@ def finalize_options(self):
                            if isinstance(ext, RustExtension)]
 
     def build_extension(self, ext):
+        executable = ext.binding == Binding.Exec
+
         # Make sure that if pythonXX-sys is used, it builds against the current
         # executing python interpreter.
         bindir = os.path.dirname(sys.executable)
@@ -75,20 +77,30 @@ def build_extension(self, ext):
 
         # build cargo command
         feature_args = ["--features", " ".join(features)] if features else []
-        args = (["cargo", "rustc", "--lib", "--manifest-path", ext.path]
-                + feature_args
-                + list(ext.args or []))
-        if not debug_build:
-            args.append("--release")
-        if quiet:
-            args.append("-q")
 
-        args.extend(["--", '--crate-type', 'cdylib'])
+        if executable:
+            args = (["cargo", "build", "--manifest-path", ext.path]
+                    + feature_args
+                    + list(ext.args or []))
+            if not debug_build:
+                args.append("--release")
+            if quiet:
+                args.append("-q")
+        else:
+            args = (["cargo", "rustc", "--lib", "--manifest-path", ext.path]
+                    + feature_args
+                    + list(ext.args or []))
+            if not debug_build:
+                args.append("--release")
+            if quiet:
+                args.append("-q")
+
+            args.extend(["--", '--crate-type', 'cdylib'])
 
-        # OSX requires special linker argument
-        if sys.platform == "darwin":
-            args.extend(["-C", "link-arg=-undefined",
-                         "-C", "link-arg=dynamic_lookup"])
+            # OSX requires special linker argument
+            if sys.platform == "darwin":
+                args.extend(["-C", "link-arg=-undefined",
+                             "-C", "link-arg=dynamic_lookup"])
 
         if not quiet:
             print(" ".join(args), file=sys.stderr)
@@ -129,19 +141,37 @@ def build_extension(self, ext):
             target_dir = os.path.join(
                 os.path.dirname(ext.path), "target/", suffix)
 
-        if sys.platform == "win32":
-            wildcard_so = "*.dll"
-        elif sys.platform == "darwin":
-            wildcard_so = "*.dylib"
+        if executable:
+            # search executable
+            dylib_path = None
+            for name in os.listdir(target_dir):
+                path = os.path.join(target_dir, name)
+                if name.startswith(".") or not os.path.isfile(path):
+                    continue
+
+                if os.access(path, os.X_OK):
+                    dylib_path = path
+                    break
+
+            if dylib_path is None:
+                raise DistutilsExecError(
+                    "rust build failed; unable to find executable in %s" %
+                    target_dir)
         else:
-            wildcard_so = "*.so"
+            if sys.platform == "win32":
+                wildcard_so = "*.dll"
+            elif sys.platform == "darwin":
+                wildcard_so = "*.dylib"
+            else:
+                wildcard_so = "*.so"
 
-        try:
-            dylib_path = glob.glob(os.path.join(target_dir, wildcard_so))[0]
-        except IndexError:
-            raise DistutilsExecError(
-                "rust build failed; unable to find any %s in %s" %
-                (wildcard_so, target_dir))
+            try:
+                dylib_path = glob.glob(
+                    os.path.join(target_dir, wildcard_so))[0]
+            except IndexError:
+                raise DistutilsExecError(
+                    "rust build failed; unable to find any %s in %s" %
+                    (wildcard_so, target_dir))
 
         # Ask build_ext where the shared library would go if it had built it,
         # then copy it there.
@@ -152,13 +182,23 @@ def build_extension(self, ext):
             target_fname = os.path.basename(os.path.splitext(
                 os.path.basename(dylib_path)[3:])[0])
 
-        ext_path = build_ext.get_ext_fullpath(target_fname)
+        if executable:
+            ext_path = build_ext.get_ext_fullpath(target_fname)
+            ext_path, _ = os.path.splitext(ext_path)
+        else:
+            ext_path = build_ext.get_ext_fullpath(target_fname)
+
         try:
             os.makedirs(os.path.dirname(ext_path))
         except OSError:
             pass
         shutil.copyfile(dylib_path, ext_path)
 
+        if executable:
+            mode = os.stat(ext_path).st_mode
+            mode |= (mode & 0o444) >> 2    # copy R bits to X
+            os.chmod(ext_path, mode)
+
     def run(self):
         if not self.extensions:
             return
@@ -182,10 +222,12 @@ def run(self):
                             version, ext.rust_version))
 
                 self.build_extension(ext)
-            except (DistutilsSetupError, DistutilsFileError, DistutilsExecError,
-                    DistutilsPlatformError, CompileError) as e:
+            except (DistutilsSetupError, DistutilsFileError,
+                    DistutilsExecError, DistutilsPlatformError,
+                    CompileError) as e:
                 if not ext.optional:
                     raise
                 else:
-                    print('Build optional Rust extension %s failed.' % ext.name)
+                    print('Build optional Rust extension %s failed.' %
+                          ext.name)
                     print(str(e))

setuptools_rust/check.py

@@ -62,15 +62,16 @@ def run(self):
             try:
                 if not os.path.exists(ext.path):
                     raise DistutilsFileError(
-                        "Can not file rust extension project file: %s" % ext.path)
+                        "Can not file rust extension project file: %s" %
+                        ext.path)
 
                 features = set(ext.features)
                 features.update(cpython_feature(binding=ext.binding))
 
                 # check cargo command
                 feature_args = [
                     "--features", " ".join(features)] if features else []
-                args = (["cargo", "check", "--lib", "--manifest-path", ext.path]
+                args = (["cargo", "check", "--manifest-path", ext.path]
                         + feature_args
                         + list(ext.args or []))
 
@@ -92,5 +93,6 @@ def run(self):
                 if not ext.optional:
                     raise
                 else:
-                    print('Check optional Rust extension %s failed.' % ext.name)
+                    print('Check optional Rust extension %s failed.' %
+                          ext.name)
                     print(str(e))

setuptools_rust/extension.py

@@ -35,9 +35,10 @@ class RustExtension:
         Binding.PyO3 uses PyO3
         Binding.RustCPython uses Rust CPython.
         Binding.NoBinding uses no binding.
+        Binding.Exec build executable.
       optional : bool
-        if it is true, a build failure in the extension will not abort the build process,
-        but instead simply not install the failing extension.
+        if it is true, a build failure in the extension will not abort the
+        build process, but instead simply not install the failing extension.
     """
 
     def __init__(self, name, path,

setuptools_rust/test.py

@@ -62,7 +62,7 @@ def run(self):
             # test cargo command
             feature_args = [
                 "--features", " ".join(features)] if features else []
-            args = (["cargo", "test", "--lib", "--manifest-path", ext.path]
+            args = (["cargo", "test", "--manifest-path", ext.path]
                     + feature_args
                     + list(ext.args or []))
 

setuptools_rust/utils.py

@@ -10,18 +10,20 @@ class Binding:
     """
     Binding Options
     """
-    #  https://github.com/PyO3/PyO3
+    # https://github.com/PyO3/PyO3
     PyO3 = 0
-    #  https://github.com/dgrunwald/rust-cpython
+    # https://github.com/dgrunwald/rust-cpython
     RustCPython = 1
-    #  Bring your own binding
+    # Bring your own binding
     NoBinding = 2
+    # Build executable
+    Exec = 3
 
 
 def cpython_feature(ext=True, binding=Binding.PyO3):
     version = sys.version_info
 
-    if binding is Binding.NoBinding:
+    if binding in (Binding.NoBinding, Binding.Exec):
         return ()
     elif binding is Binding.PyO3:
         if (2, 7) < version < (2, 8):