Set up CI with Azure Pipelines (#275)

ci/azure-deploy-docs.yml

@@ -0,0 +1,39 @@
+parameters:
+  dependsOn: []
+
+jobs:
+- job: documentation
+  displayName: 'Deploy API Documentation'
+  condition: and(succeeded(), eq(variables['Build.SourceBranch'], 'refs/heads/master'))
+  pool:
+    vmImage: 'Ubuntu 16.04'
+  dependsOn:
+    - ${{ parameters.dependsOn }}
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: stable
+  - script: |
+      cargo doc --no-deps
+      cp -R target/doc '$(Build.BinariesDirectory)'
+    displayName: 'Generate Documentation'
+  - script: |
+      set -e
+
+      git --version
+      ls -la
+      git init
+      git config user.name 'Deployment Bot (from Azure Pipelines)'
+      git config user.email '[email protected]'
+      git config --global credential.helper 'store --file ~/.my-credentials'
+      printf "protocol=https\nhost=github.com\nusername=carllerche\npassword=%s\n\n" "$GITHUB_TOKEN" | git credential-store --file ~/.my-credentials store
+      git remote add origin https://github.com/tokio-rs/bytes
+      git checkout -b gh-pages
+      git add .
+      git commit -m 'Deploy Bytes API documentation'
+      git push -f origin gh-pages
+    env:
+      GITHUB_TOKEN: $(githubPersonalToken)
+    workingDirectory: '$(Build.BinariesDirectory)'
+    displayName: 'Deploy Documentation'
+