Add GitHub workflows for CI (#111)

Adds GitHub Actions based workflows for Linux CI testing instead of
using Swift CI. Removes docker files.

.github/workflows/swift.yml

@@ -0,0 +1,49 @@
+name: Swift
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Swift (${{ matrix.swift.version }}) / Ubuntu (${{ matrix.os.version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - name: jammy
+            version: "22.04"
+        swift:
+          - repo: swift
+            version: "5.9"
+          - repo: swift
+            version: "5.10"
+          - repo: swiftlang/swift
+            version: "nightly-6.0"
+          - repo: swiftlang/swift
+            version: "nightly-main"
+    container: ${{ matrix.swift.repo }}:${{ matrix.swift.version }}-${{ matrix.os.name }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Dependencies
+        run: apt-get -qq update && apt-get -qq -y install make
+      - name: Build & Test
+        run: make test CONFIGURATION=release
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    container: swiftlang/swift:nightly-6.0-jammy
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Dependencies
+        run: apt-get -qq update && apt-get -qq -y install make
+      - name: Lint
+        run: make lint

CODEOWNERS

@@ -1,19 +1,2 @@
-# This file is a list of the people responsible for ensuring that patches for a
-# particular part of Swift are reviewed, either by themselves or by someone else.
-# They are also the gatekeepers for their part of Swift, with the final word on
-# what goes in or not.
-#
-# The list is sorted by surname and formatted to allow easy grepping and
-# beautification by scripts.  The fields are: name (N), email (E), web-address
-# (W), PGP key ID and fingerprint (P), description (D), and snail-mail address
-# (S).
-
-# N: Rauhul Varma
-# E: [email protected]
-# D: Everything in swift-mmio not covered by someone else
-
-###
-
-# The following lines are used by GitHub to automatically recommend reviewers.
-
-* @rauhul
+*                 @rauhul
+.github/workflows @rauhul @shahmishal

Makefile

@@ -16,18 +16,13 @@ SKIP_LINT =
 .PHONY: all lint format build test clean
 all: test
 
-ifdef SKIP_LINT
-lint:
-	@echo "skipping linting..."
-else
 lint:
 	@echo "linting..."
 	@swift-format lint \
 		--configuration $(SWIFT_FORMAT_CONFIGURATION) \
 		--recursive \
 		--strict \
 		Package.swift Plugins Sources Tests
-endif
 
 format:
 	@echo "formatting..."
@@ -37,7 +32,7 @@ format:
 		--in-place \
 		Package.swift Plugins Sources Tests
 
-build: lint
+build:
 	@echo "building..."
 	@swift build \
 		--configuration $(CONFIGURATION) \