Install Rust on macOS

Author: Xanewok

azure-pipelines.yml

@@ -1,8 +1,3 @@
-# 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
-
 trigger:
 - master
 pr:
@@ -26,8 +21,9 @@ variables:
   RLS_TEST_WAIT_FOR_AGES: 1
 
 steps:
-- script: rustup default nightly
-  displayName: Install nightly toolchain
+- template: ci/azure-install-rust.yml
+  parameters:
+    rust_version: nightly
 - script: rustup component add rustfmt
   displayName: 'Add Rustfmt to enforce consistent formatting'
 - script: rustup component add rust-src rust-analysis

ci/azure-install-rust.yml

@@ -0,0 +1,33 @@
+steps:
+  # Linux and macOS.
+  - script: |
+      set -e
+      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain none
+      export PATH=$PATH:$HOME/.cargo/bin
+      rustup toolchain install $RUSTUP_TOOLCHAIN
+      rustup default $RUSTUP_TOOLCHAIN
+      echo "##vso[task.setvariable variable=PATH;]$PATH:$HOME/.cargo/bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
+    displayName: "Install rust (*nix)"
+    condition: not(eq(variables['Agent.OS'], 'Windows_NT'))
+
+  # Windows.
+  - script: |
+      curl -sSf -o rustup-init.exe https://win.rustup.rs
+      rustup-init.exe -y --default-toolchain none
+      set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+      rustup toolchain install %RUSTUP_TOOLCHAIN%
+      rustup default %RUSTUP_TOOLCHAIN%
+      echo "##vso[task.setvariable variable=PATH;]%PATH%;%USERPROFILE%\.cargo\bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
+    displayName: "Install rust (windows)"
+    condition: eq(variables['Agent.OS'], 'Windows_NT')
+
+  # All platforms.
+  - script: |
+        rustup toolchain list
+        rustc -Vv
+        cargo -V
+    displayName: Query rust and cargo versions