Create appveyor framework with tests

This can be used to build wheels in a conda enviroment on appveyor.
The tests use a simple package (origsel/python-appveyor-demo) to test
building and testing a wheel

appveyor.yml

+environment:
+  global:
+    REPO_DIR: python-appveyor-demo
+    PACKAGE_NAME: python_appveyor_demo
+    BUILD_COMMIT: master
+    BUILD_DEPENDS: "cython"
+    TEST_DEPENDS: "nose"
+
+    # SDK v7.0 MSVC Express 2008's SetEnv.cmd script will fail if the
+    # /E:ON and /V:ON options are not enabled in the batch script intepreter
+    # See: http://stackoverflow.com/a/13751649/163740
+    CMD_IN_ENV: "cmd /E:ON /V:ON /C %APPVEYOR_BUILD_FOLDER%\\ci\\appveyor\\windows_sdk.cmd"
+
+  matrix:
+    - PYTHON: "C:\\Miniconda"
+      PYTHON_VERSION: "2.7"
+      PYTHON_ARCH: "32"
+    - PYTHON: "C:\\Miniconda-x64"
+      PYTHON_VERSION: "2.7"
+      PYTHON_ARCH: "64"
+    - PYTHON: "C:\\Miniconda3"
+      PYTHON_VERSION: "3.4"
+      PYTHON_ARCH: "32"
+    - PYTHON: "C:\\Miniconda3-x64"
+      PYTHON_VERSION: "3.4"
+      PYTHON_ARCH: "64"
+    - PYTHON: "C:\\Miniconda35"
+      PYTHON_VERSION: "3.5"
+      PYTHON_ARCH: "32"
+    - PYTHON: "C:\\Miniconda35-x64"
+      PYTHON_VERSION: "3.5"
+      PYTHON_ARCH: "64"
+
+
+# We always use a 64-bit machine, but can build x86 distributions
+# with the TARGET_ARCH variable.
+platform:
+    - x64
+
+matrix:
+    fast_finish: true
+
+install:
+    # Install miniconda and fix headers
+    - ps: .\\ci\\appveyor\\install.ps1
+    - ps: .\\ci\\appveyor\\missing-headers.ps1
+    - SET PATH=%PYTHON%;%PYTHON%\Scripts;%PYTHON%\Library\bin;%PATH%
+    - conda info
+
+    # Check that we have the expected version and architecture for Python
+    - python --version
+    - python -c "import struct; print(struct.calcsize('P') * 8)"
+
+    # clone a origsel/python-appveyor-demo
+    # this repo includes a simple package to test appveyor
+    - git clone git://github.com/ogrisel/python-appveyor-demo.git
+
+
+build_script:
+    # Install build requirements
+    - conda install --yes %BUILD_DEPENDS%
+
+    # build wheel:
+    - cd %REPO_DIR%
+    - git checkout %BUILD_COMMIT%
+    - "%CMD_IN_ENV% python setup.py bdist_wheel"
+    - ls dist/*
+
+test_script:
+    # create test env
+    - conda create --yes -n test_env python=%PYTHON_VERSION% %TEST_DEPENDS%
+    - activate test_env
+
+    # install from wheel
+    - pip install --no-index --find-links dist/ %PACKAGE_NAME%
+
+    # run tests from install wheel
+    - cd ..
+    - python -m pyappveyordemo.tests.test_extension

ci/appveyor/install.ps1

+# Sample script to install Miniconda under Windows
+# Authors: Olivier Grisel, Jonathan Helmus and Kyle Kastner, Robert McGibbon
+# License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
+
+$MINICONDA_URL = "http://repo.continuum.io/miniconda/"
+
+
+function DownloadMiniconda ($python_version, $platform_suffix) {
+    $webclient = New-Object System.Net.WebClient
+    if ($python_version -match "3.4") {
+        $filename = "Miniconda3-3.5.5-Windows-" + $platform_suffix + ".exe"
+    } else {
+        $filename = "Miniconda-3.5.5-Windows-" + $platform_suffix + ".exe"
+    }
+    $url = $MINICONDA_URL + $filename
+
+    $basedir = $pwd.Path + "\"
+    $filepath = $basedir + $filename
+    if (Test-Path $filename) {
+        Write-Host "Reusing" $filepath
+        return $filepath
+    }
+
+    # Download and retry up to 3 times in case of network transient errors.
+    Write-Host "Downloading" $filename "from" $url
+    $retry_attempts = 2
+    for($i=0; $i -lt $retry_attempts; $i++){
+        try {
+            $webclient.DownloadFile($url, $filepath)
+            break
+        }
+        Catch [Exception]{
+            Start-Sleep 1
+        }
+   }
+   if (Test-Path $filepath) {
+       Write-Host "File saved at" $filepath
+   } else {
+       # Retry once to get the error message if any at the last try
+       $webclient.DownloadFile($url, $filepath)
+   }
+   return $filepath
+}
+
+
+function InstallMiniconda ($python_version, $architecture, $python_home) {
+    Write-Host "Installing Python" $python_version "for" $architecture "bit architecture to" $python_home
+    if (Test-Path $python_home) {
+        Write-Host $python_home "already exists, skipping."
+        return $false
+    }
+    if ($architecture -match "32") {
+        $platform_suffix = "x86"
+    } else {
+        $platform_suffix = "x86_64"
+    }
+
+    $filepath = DownloadMiniconda $python_version $platform_suffix
+    Write-Host "Installing" $filepath "to" $python_home
+    $install_log = $python_home + ".log"
+    $args = "/S /D=$python_home"
+    Write-Host $filepath $args
+    Start-Process -FilePath $filepath -ArgumentList $args -Wait -Passthru
+    if (Test-Path $python_home) {
+        Write-Host "Python $python_version ($architecture) installation complete"
+    } else {
+        Write-Host "Failed to install Python in $python_home"
+        Get-Content -Path $install_log
+        Exit 1
+    }
+}
+
+
+function InstallCondaPackages ($python_home, $spec) {
+    $conda_path = $python_home + "\Scripts\conda.exe"
+    $args = "install --yes " + $spec
+    Write-Host ("conda " + $args)
+    Start-Process -FilePath "$conda_path" -ArgumentList $args -Wait -Passthru
+}
+
+function UpdateConda ($python_home) {
+    $conda_path = $python_home + "\Scripts\conda.exe"
+    Write-Host "Updating conda..."
+    $args = "update --yes conda"
+    Write-Host $conda_path $args
+    Start-Process -FilePath "$conda_path" -ArgumentList $args -Wait -Passthru
+}
+
+
+function main () {
+    InstallMiniconda $env:PYTHON_VERSION $env:PYTHON_ARCH $env:PYTHON
+    UpdateConda $env:PYTHON
+    InstallCondaPackages $env:PYTHON "conda-build=1.4.0 pip jinja2 binstar"
+}
+
+main

ci/appveyor/missing-headers.ps1

+function InstallMissingHeaders () {
+    # Visual Studio 2008 is missing stdint.h, but you can just download one
+    # from the web.
+    # http://stackoverflow.com/questions/126279/c99-stdint-h-header-and-ms-visual-studio
+    $webclient = New-Object System.Net.WebClient
+
+    $include_dirs = @("C:\Program Files\Microsoft SDKs\Windows\v7.0\Include",
+                      "C:\Program Files\Microsoft SDKs\Windows\v7.1\Include",
+                      "C:\Users\appveyor\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\include",
+                      "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include",
+                      "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include")
+
+    Foreach ($include_dir in $include_dirs) {
+    $urls = @(@("https://raw.githubusercontent.com/chemeris/msinttypes/master/stdint.h", "stdint.h"),
+             @("https://raw.githubusercontent.com/chemeris/msinttypes/master/inttypes.h", "inttypes.h"))
+
+    Foreach ($i in $urls) {
+        $url = $i[0]
+        $filename = $i[1]
+
+        $filepath = "$include_dir\$filename"
+        if (Test-Path $filepath) {
+            Write-Host $filename "already exists in" $include_dir
+            continue
+        }
+
+        Write-Host "Downloading remedial " $filename " from" $url "to" $filepath
+        $retry_attempts = 2
+        for($i=0; $i -lt $retry_attempts; $i++){
+            try {
+                $webclient.DownloadFile($url, $filepath)
+                break
+            }
+            Catch [Exception]{
+                Start-Sleep 1
+            }
+       }
+
+       if (Test-Path $filepath) {
+           Write-Host "File saved at" $filepath
+       } else {
+           # Retry once to get the error message if any at the last try
+           $webclient.DownloadFile($url, $filepath)
+       }
+    }
+    }
+}
+
+function main() {
+    InstallMissingHeaders
+}
+
+main
+

ci/appveyor/windows_sdk.cmd

+:: To build extensions for 64 bit Python 3.5 or later no special environment needs
+:: to be configured.
+::
+:: To build extensions for 64 bit Python 3.4 or earlier, we need to configure environment
+:: variables to use the MSVC 2010 C++ compilers from GRMSDKX_EN_DVD.iso of:
+:: MS Windows SDK for Windows 7 and .NET Framework 4 (SDK v7.1)
+::
+:: To build extensions for 64 bit Python 2, we need to configure environment
+:: variables to use the MSVC 2008 C++ compilers from GRMSDKX_EN_DVD.iso of:
+:: MS Windows SDK for Windows 7 and .NET Framework 3.5 (SDK v7.0)
+::
+:: 32 bit builds do not require specific environment configurations.
+::
+:: Note: this script needs to be run with the /E:ON and /V:ON flags for the
+:: cmd interpreter, at least for (SDK v7.0)
+::
+:: More details at:
+:: https://github.com/cython/cython/wiki/64BitCythonExtensionsOnWindows
+:: https://stackoverflow.com/a/13751649/163740
+::
+:: Original Author: Olivier Grisel
+:: License: CC0 1.0 Universal: https://creativecommons.org/publicdomain/zero/1.0/
+:: This version based on updates for python 3.5 by Phil Elson at:
+::     https://github.com/pelson/Obvious-CI/tree/master/scripts
+
+@ECHO OFF
+
+SET COMMAND_TO_RUN=%*
+SET WIN_SDK_ROOT=C:\Program Files\Microsoft SDKs\Windows
+
+SET MAJOR_PYTHON_VERSION="%PYTHON_VERSION:~0,1%"
+SET MINOR_PYTHON_VERSION=%PYTHON_VERSION:~2,1%
+IF %MAJOR_PYTHON_VERSION% == "2" (
+    SET WINDOWS_SDK_VERSION="v7.0"
+    SET SET_SDK_64=Y
+) ELSE IF %MAJOR_PYTHON_VERSION% == "3" (
+    SET WINDOWS_SDK_VERSION="v7.1"
+    IF %MINOR_PYTHON_VERSION% LEQ 4 (
+        SET SET_SDK_64=Y
+    ) ELSE (
+        SET SET_SDK_64=N
+    )
+) ELSE (
+    ECHO Unsupported Python version: "%MAJOR_PYTHON_VERSION%"
+    EXIT 1
+)
+
+IF "%PYTHON_ARCH%"=="64" (
+    IF %SET_SDK_64% == Y (
+        ECHO Configuring Windows SDK %WINDOWS_SDK_VERSION% for Python %MAJOR_PYTHON_VERSION% on a 64 bit architecture
+        SET DISTUTILS_USE_SDK=1
+        SET MSSdk=1
+        "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Setup\WindowsSdkVer.exe" -q -version:%WINDOWS_SDK_VERSION%
+        "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Bin\SetEnv.cmd" /x64 /release
+        ECHO Executing: %COMMAND_TO_RUN%
+        call %COMMAND_TO_RUN% || EXIT 1
+    )  ELSE (
+        ECHO Using default MSVC build environment for 64 bit architecture
+        ECHO Executing: %COMMAND_TO_RUN%
+        call %COMMAND_TO_RUN% || EXIT 1
+    )
+) ELSE (
+    ECHO Using default MSVC build environment for 32 bit architecture
+    ECHO Executing: %COMMAND_TO_RUN%
+    call %COMMAND_TO_RUN% || EXIT 1
+)