Bump version

Unbuffered stdout for Windows and displaying the output of subprocess calls

Fix #23

README.md

@@ -44,7 +44,7 @@ Usage
         - os: osx
 
     script:
-      - pip install cibuildwheel==0.4.0
+      - pip install cibuildwheel==0.4.1
       - cibuildwheel --output-dir wheelhouse
     ```
 
@@ -54,7 +54,7 @@ Usage
 
     ```
     build_script:
-      - pip install cibuildwheel==0.4.0
+      - pip install cibuildwheel==0.4.1
       - cibuildwheel --output-dir wheelhouse
     artifacts:
       - path: "wheelhouse\\*.whl"
@@ -241,11 +241,15 @@ Here are some repos that use cibuildwheel.
 Legal note
 ----------
 
-Since `cibuildwheel` runs the wheel through delocate or auditwheel, it will automatically bundle library dependencies. This is similar to static linking - it might have some licence implications. Check the license for any code you're pulling in to make sure that's allowed.
+Since `cibuildwheel` runs the wheel through delocate or auditwheel, it will automatically bundle library dependencies. This is similar to static linking, so it might have some licence implications. Check the license for any code you're pulling in to make sure that's allowed.
 
 Changelog
 =========
 
+### 0.4.0
+
+- Fixed a bug that was increasing the build time by building the wheel twice. This was a problem for large projects that have a long build time. If you're upgrading and you need the old behaviour, use `CIBW_BEFORE_BUILD={pip} install .`, or install exactly the dependencies you need in `CIBW_BEFORE_BUILD`. See #18.
+
 ### 0.3.0
 
 - Removed Python 2.6 support on Linux (#12)

appveyor.yml

@@ -1,3 +1,5 @@
 build_script:
   - pip install .
-  - python ./run_tests.py
+  # the '-u' flag is required so the output is in the correct order. 
+  # See https://github.com/joerick/cibuildwheel/pull/24 for more info.
+  - python -u ./run_tests.py

cibuildwheel/__init__.py

@@ -1 +1 @@
-__version__ = '0.4.0'
+__version__ = '0.4.1'

cibuildwheel/windows.py

@@ -11,6 +11,10 @@ from .util import prepare_command
 
 
 def build(project_dir, package_name, output_dir, test_command, test_requires, before_build, skip):
+    # Python under AppVeyor/Windows seems to be buffering by default, giving problems interleaving subprocess call output with unflushed calls to 'print'
+    sys.stdout.flush()
+    sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
+
     # run_with_env is a cmd file that sets the right environment variables to
     run_with_env = os.path.join(tempfile.gettempdir(), 'appveyor_run_with_env.cmd')
     if not os.path.exists(run_with_env):
@@ -22,7 +26,7 @@ def build(project_dir, package_name, output_dir, test_command, test_requires, be
         # print the command executing for the logs
         print('+ ' + ' '.join(args))
         args = ['cmd', '/E:ON', '/V:ON', '/C', run_with_env] + args
-        return subprocess.check_output(' '.join(args), env=env, cwd=cwd)
+        return subprocess.check_call(' '.join(args), env=env, cwd=cwd)
 
     PythonConfiguration = namedtuple('PythonConfiguration', ['version', 'arch', 'identifier', 'path'])
     python_configurations = [

setup.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.4.0
+current_version = 0.4.1
 commit = True
 tag = True
 message = Bump version

setup.py

@@ -8,7 +8,7 @@ except ImportError:
 
 setup(
     name='cibuildwheel',
-    version='0.4.0',
+    version='0.4.1',
     description="Build Python wheels on CI with minimal configuration.",
     long_description='For readme please see http://github.com/joerick/cibuildwheel',
     author="Joe Rickerby",