ci: bring appveyor back (#364)

* ci: add appveyor

* Try to get the Windows build to work

.travis.yml

@@ -18,9 +18,6 @@ matrix:
     rust: nightly
   - os: osx
     rust: stable
-  - os: windows
-    rust: stable
-    cache: false
   allow_failures:
   - rust: nightly
 

README.md

@@ -4,9 +4,12 @@ Rust implementation of JSON-RPC 2.0 Specification.
 Transport-agnostic `core` and transport servers for `http`, `ipc`, `websockets` and `tcp`.
 
 [![Build Status][travis-image]][travis-url]
+[![Build Status][appveyor-image]][appveyor-url]
 
 [travis-image]: https://travis-ci.org/paritytech/jsonrpc.svg?branch=master
 [travis-url]: https://travis-ci.org/paritytech/jsonrpc
+[appveyor-image]: https://ci.appveyor.com/api/projects/status/github/paritytech/jsonrpc?svg=true
+[appveyor-url]: https://ci.appveyor.com/project/paritytech/jsonrpc/branch/master
 
 [Documentation](http://paritytech.github.io/jsonrpc/)
 

appveyor.yml

@@ -0,0 +1,24 @@
+environment:
+  matrix:
+  - TARGET: x86_64-pc-windows-msvc
+
+install:
+  - curl -sSf -o rustup-init.exe https://win.rustup.rs/
+  - rustup-init.exe -y --default-host %TARGET%
+  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin;C:\MinGW\bin
+  - rustc -vV
+  - cargo -vV
+
+build: false
+
+test_script:
+  - cargo test --all --verbose
+
+# avoid running tests twice
+branches:
+  only:
+  - master
+  - /^parity-.*$/
+
+cache:
+  - C:\Users\appveyor\.cargo