CI: Switch to azure ci (#39)

* Switch to azure ci

* Only run windows

* Fix whitespace

* Update esy-build-steps.yml

* Remove timeout

* Ensure no intermittency

.ci/azure-pipelines.yml

@@ -0,0 +1,13 @@
+# Starter pipeline
+# Start with a minimal pipeline that you can customize to build and deploy your code.
+# Add steps that build, run tests, deploy, and more:
+# https://aka.ms/yaml
+
+name: $(Build.SourceVersion)
+jobs:
+- job: Windows
+  timeoutInMinutes: 0
+  pool:
+    vmImage: 'vs2017-win2016'
+  steps:
+  - template: esy-build-steps.yml

.ci/esy-build-steps.yml

@@ -0,0 +1,33 @@
+# Cross-platform set of build steps for building esy projects
+
+steps:
+  - task: NodeTool@0
+    inputs:
+      versionSpec: '8.9'
+  - script: npm install -g [email protected]
+  - script: npm install
+  - script: npm run build-cygwin
+  - script: cd re && esy install
+  - script: cd re && esy build
+  - script: cd re && esy b dune runtest
+  - script: npm run test
+    displayName: "npm run test: before packing"
+  - script: npm run package-cygwin
+  - task: PublishBuildArtifacts@1
+    displayName: 'Release Package'
+    inputs:
+        PathtoPublish: '.'
+        ArtifactName: npm-package
+  - script: node postinstall.js
+    displayName: "node postinstall.js (iteration 1)"
+  - script: npm run test
+    displayName: "npm run test: after unpack (iteration 1)"
+  - script: node postinstall.js
+    displayName: "node postinstall.js (iteration 2)"
+  - script: npm run test
+    displayName: "npm run test: after unpack (iteration 2)"
+  - script: node postinstall.js
+    displayName: "node postinstall.js (iteration 3)"
+  - script: npm run test
+    displayName: "npm run test: after unpack (iteration 3)"
+