Add docker files for CI (#270)

.swiftformat

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+# file options
+
+--swiftversion 5.7
+--exclude .build
+
+# format options
+
+--self insert
+--patternlet inline
+--ranges nospace
+--stripunusedargs unnamed-only
+--ifdef no-indent
+--extensionacl on-declarations
+--disable typeSugar # https://github.com/nicklockwood/SwiftFormat/issues/636
+--disable andOperator
+--disable wrapMultilineStatementBraces
+--disable enumNamespaces
+--disable redundantExtensionACL
+--disable redundantReturn
+--disable preferKeyPath
+--disable sortedSwitchCases
+--disable hoistAwait
+--disable hoistTry
+
+# rules

docker/Dockerfile

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+ARG swift_version=5.7
+ARG ubuntu_version=focal
+ARG base_image=swift:$swift_version-$ubuntu_version
+FROM $base_image
+# needed to do again after FROM due to docker limitation
+ARG swift_version
+ARG ubuntu_version
+
+# set as UTF-8
+RUN apt-get update && apt-get install -y locales locales-all
+ENV LC_ALL en_US.UTF-8
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US.UTF-8
+
+# tools
+RUN mkdir -p $HOME/.tools
+RUN echo 'export PATH="$HOME/.tools:$PATH"' >> $HOME/.profile
+
+# swiftformat (until part of the toolchain)
+
+ARG swiftformat_version=0.51.12
+RUN git clone --branch $swiftformat_version --depth 1 https://github.com/nicklockwood/SwiftFormat $HOME/.tools/swift-format
+RUN cd $HOME/.tools/swift-format && swift build -c release
+RUN ln -s $HOME/.tools/swift-format/.build/release/swiftformat $HOME/.tools/swiftformat

docker/docker-compose.2004.57.yaml

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+version: "3"
+
+services:
+
+  runtime-setup:
+    image: swift-async-algorithms:20.04-5.7
+    build:
+      args:
+        ubuntu_version: "focal"
+        swift_version: "5.7"
+
+  build:
+    image: swift-async-algorithms:20.04-5.7
+
+  test:
+    image: swift-async-algorithms:20.04-5.7
+    environment: []
+      #- SANITIZER_ARG: "--sanitize=thread"
+      #- TSAN_OPTIONS: "no_huge_pages_for_shadow=0 suppressions=/code/tsan_suppressions.txt"
+
+  shell:
+    image: swift-async-algorithms:20.04-5.7

docker/docker-compose.2004.58.yaml

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+version: "3"
+
+services:
+
+  runtime-setup:
+    image: swift-async-algorithms:20.04-5.8
+    build:
+      args:
+        base_image: "swiftlang/swift:nightly-5.8-focal"
+
+  build:
+    image: swift-async-algorithms:20.04-5.8
+
+  test:
+    image: swift-async-algorithms:20.04-5.8
+    environment: []
+      #- SANITIZER_ARG: "--sanitize=thread"
+      #- TSAN_OPTIONS: "no_huge_pages_for_shadow=0 suppressions=/code/tsan_suppressions.txt"
+
+  shell:
+    image: swift-async-algorithms:20.04-5.8

docker/docker-compose.2204.main.yaml

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+version: "3"
+
+services:
+
+  runtime-setup:
+    image: swift-async-algorithms:22.04-main
+    build:
+      args:
+        base_image: "swiftlang/swift:nightly-main-jammy"
+
+  build:
+    image: swift-async-algorithms:22.04-main
+
+  test:
+    image: swift-async-algorithms:22.04-main
+    environment: []
+      #- SANITIZER_ARG: "--sanitize=thread"
+      #- TSAN_OPTIONS: "no_huge_pages_for_shadow=0 suppressions=/code/tsan_suppressions.txt"
+
+  shell:
+    image: swift-async-algorithms:22.04-main

docker/docker-compose.yaml

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+# this file is not designed to be run directly
+# instead, use the docker-compose.<os>.<swift> files
+# eg docker-compose -f docker/docker-compose.yaml -f docker/docker-compose.2004.56.yaml run test
+version: "3"
+
+services:
+  runtime-setup:
+    image: swift-async-algorithms:default
+    build:
+      context: .
+      dockerfile: Dockerfile
+
+  common: &common
+    image: swift-async-algorithms:default
+    depends_on: [runtime-setup]
+    volumes:
+      - ~/.ssh:/root/.ssh
+      - ..:/code:z
+    working_dir: /code
+
+  soundness:
+    <<: *common
+    command: /bin/bash -xcl "swift -version && uname -a && ./scripts/soundness.sh"
+
+  build:
+    <<: *common
+    environment: []
+    command: /bin/bash -cl "swift build"
+
+  test:
+    <<: *common
+    depends_on: [runtime-setup]
+    command: /bin/bash -xcl "swift $${SWIFT_TEST_VERB-test} $${WARN_AS_ERROR_ARG-} $${SANITIZER_ARG-} $${IMPORT_CHECK_ARG-}"
+
+  # util
+
+  shell:
+    <<: *common
+    entrypoint: /bin/bash