Migrate to github actions for CI

.github/workflows/main.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on: [push]
+
+jobs:
+  test:
+    name: Build mode ${{ matrix.build_mode }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        build_mode: ["", -Drelease-fast=true, -Drelease-safe=true, -Drelease-small=true]
+
+    steps:
+    - uses: actions/checkout@v1
+    
+    - name: Download zig
+      run: |
+        export PYTHONIOENCODING=utf8
+        wget $(curl -s 'https://ziglang.org/download/index.json' | python3 -c "import sys, json; print(json.load(sys.stdin)['master']['x86_64-linux']['tarball'])")
+        sudo apt-get install mtools
+        tar -xvf zig*
+    - name: Build kernel
+      run: zig*/zig build ${{ matrix.build_mode }}
+    - name: Run unit tests
+      run: zig*/zig build test ${{ matrix.build_mode }}
+    - name: Install qemu
+      run: |
+        sudo apt-get update
+        sudo apt-get install qemu qemu-system --fix-missing
+    - name: Run runtime tests
+      run: zig*/zig build test -Drt-test=true ${{ matrix.build_mode }}

README.md

@@ -1,6 +1,6 @@
 # Pluto
 
-[![Build Status](https://dev.azure.com/samueltebbs/pluto/_apis/build/status/SamTebbs33.pluto?branchName=develop)](https://dev.azure.com/samueltebbs/samueltebbs/_build/latest?definitionId=1&branchName=develop)
+[![Build Status](https://github.com/SamTebbs33/pluto/workflows/CI/badge.svg)](https://github.com/SamTebbs33/pluto/actions)
 
 Pluto is a kernel written almost entirely in [Zig](https://github.com/ziglang/zig) and supports x86, with aarch64 and x64 backends being planned.
 

azure-pipelines.yml

@@ -1,40 +0,0 @@
-# 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:
-- develop
-- feature/*
-
-pr:
-- develop
-- feature/*
-
-pool:
-  vmImage: 'ubuntu-latest'
-
-variables:
-  zig_version: master
-
-steps:
-- script: |
-    export PYTHONIOENCODING=utf8
-    wget $(curl -s 'https://ziglang.org/download/index.json' | python3 -c "import sys, json; print(json.load(sys.stdin)['$(zig_version)']['x86_64-linux']['tarball'])")
-    tar -xvf zig*
-  displayName: 'Download zig'
-
-- script: zig*/zig build
-  displayName: 'Build kernel'
-
-- script: zig*/zig build test
-  displayName: 'Unit tests'
-
-- script: |
-    sudo apt-get update
-    sudo apt-get install qemu qemu-system --fix-missing
-  displayName: 'Download qemu'
-
-- script: |
-    zig*/zig build test -Drt-test=true
-  displayName: 'Runtime tests'