Add Appveyor for Windows continuous integration (#9)

* Add appveyor based on https://users.rust-lang.org/t/rust-appveyor-windows-ci-scripts/4437/2

* Add build script in a separate file, based on https://github.com/briansmith/ring/blob/master/mk/appveyor.bat

* Add pacman installation packages from https://github.com/Thinkofname/steven/wiki/Compiling-and-or-running#compiling-on-windows

* Run msys2_shell from https://github.com/appveyor/ci/issues/352

* Set msys64 and mingw PATH

f000540506

* Add --noconfirm option to pacman

https://unix.stackexchange.com/questions/52277/pacman-option-to-assume-yes-to-every-question#52278

* Try installing OpenSSL using vcpkg

https://www.appveyor.com/docs/lang/cpp/#vc-packaging-tool

* Attempt to install OpenSSL using rust-openssl's appveyor.yml

https://github.com/sfackler/rust-openssl/blob/master/appveyor.yml

* Revert "Attempt to install OpenSSL using rust-openssl's appveyor.yml"

This reverts commit 50106089798615f5a6576651fe9ca88af9a43a0d.

* Set OPENSSL_DIR to C:\OpenSSL

* List contents of C:\OpenSSL

* List C:\OpenSSL after installation

* No such directory

* Use appveyor script from thinkofname

https://github.com/Thinkofname/steven/issues/72#issuecomment-433889692

* Enable echo in appveyor.bat

* Add exported build script, merge working with existing

* Remove environment matrix, nightly-2018-10-24 vs nightly

* Remove debug/release because it builds both in one go

* Echo the platform variable before forcing it

* Set platforms to x86 (not Win32) and x64

* Build x64 first

* Only install the proper platform for OpenSSL, not both

README.md

@@ -24,7 +24,7 @@ Currently requires SDL2, OpenSSL and **nightly** rust to build.
 
 `cargo build --release`
 
-Windows users can download pre-compiled builds from here: https://ci.appveyor.com/project/thinkofdeath/steven-rust/branch/master
+Windows users can download pre-compiled builds from here: https://ci.appveyor.com/project/iceiix/steven
 (Select your platform, Click the artifacts tab and download Steven.zip)
 
 The Visual Studio 2015 Redistributable is required to run these builds.

appveyor.yml

@@ -0,0 +1,74 @@
+version: 1.0.{build}
+image: Visual Studio 2015
+clone_depth: 1
+platform:
+  - x64
+  - x86
+build_script:
+- cmd: >-
+    echo on
+
+    echo AddMessage "PLATFORM is %PLATFORM%"
+
+    if "%PLATFORM%" == "x86" set RUST_INSTALL=i686-pc-windows-msvc
+
+    if "%PLATFORM%" == "x64" set RUST_INSTALL=x86_64-pc-windows-msvc
+
+    echo AddMessage "platform is %platform%"
+
+    appveyor AddMessage "Platform rust: %RUST_INSTALL%"
+
+    appveyor DownloadFile "https://static.rust-lang.org/dist/rust-nightly-%RUST_INSTALL%.exe" -FileName rust-install.exe
+
+    "./rust-install.exe" /VERYSILENT /NORESTART /DIR="C:\Rust\"
+
+    SET PATH=%PATH%;C:\Rust\bin
+
+    rustc -V
+
+    cargo -V
+
+
+    vcpkg integrate install
+
+    vcpkg install openssl:%PLATFORM%-windows
+
+    set VCPKGRS_DYNAMIC=1
+
+
+    appveyor DownloadFile https://www.libsdl.org/release/SDL2-devel-2.0.4-VC.zip -FileName sdl2-dev.zip
+
+    mkdir C:\sdl2
+
+    7z x sdl2-dev.zip -oC:\sdl2\ -y
+
+    cp C:\sdl2\SDL2-2.0.4\lib\%PLATFORM%\SDL2.lib C:\Rust\lib\rustlib\%RUST_INSTALL%\lib\SDL2.lib
+
+
+    cargo build
+
+    mkdir dist-debug
+
+    cp target\debug\steven.exe dist-debug
+
+    cp C:\sdl2\SDL2-2.0.4\lib\%PLATFORM%\SDL2.dll dist-debug
+
+    cp C:\tools\vcpkg\installed\%PLATFORM%-windows\bin\libeay32.dll dist-debug
+
+    cp C:\tools\vcpkg\installed\%PLATFORM%-windows\bin\ssleay32.dll dist-debug
+
+
+    cargo build --release
+
+    mkdir dist
+
+    cp target\release\steven.exe dist
+
+    cp C:\sdl2\SDL2-2.0.4\lib\%PLATFORM%\SDL2.dll dist
+
+    cp C:\tools\vcpkg\installed\%PLATFORM%-windows\bin\libeay32.dll dist
+
+    cp C:\tools\vcpkg\installed\%PLATFORM%-windows\bin\ssleay32.dll dist
+artifacts:
+- path: dist
+- path: dist-debug