Add CI for linux/arm64, darwin/arm64

Use CircleCI to add CI for this.

.circleci/config.yml

@@ -0,0 +1,80 @@
+version: 2.1
+workflows:
+  main:
+    jobs: ['linux-arm64', 'ios']
+
+jobs:
+  # linux/arm64
+  linux-arm64:
+    machine:
+      image: ubuntu-2204:2022.07.1
+    resource_class: arm.medium
+    working_directory: ~/repo
+    steps:
+      - checkout
+
+      - run:
+          name: install-go
+          command: |
+            sudo apt -y install golang
+
+      - run:
+          name: test
+          command: |
+            uname -a
+            go version
+            go test -race ./...
+
+  # iOS
+  ios:
+    macos:
+      xcode: 12.5.1
+    working_directory: ~/repo
+    steps:
+      - checkout
+
+      - run:
+          name: install-go
+          command: |
+            export HOMEBREW_NO_AUTO_UPDATE=1
+            brew install go
+
+      - run:
+          name: test
+          environment:
+            SCAN_DEVICE: iPhone 6
+            SCAN_SCHEME: WebTests
+          command: |
+            export PATH=$PATH:/usr/local/Cellar/go/*/bin
+            uname -a
+            go version
+            go test -race ./...
+
+  # This is just Linux x86_64; also need to get a Go with GOOS=android, but
+  # there aren't any pre-built versions of that on the Go site. Idk, disable for
+  # now; number of people using Go on Android is probably very tiny, and the
+  # number of people using Go with this lib smaller still.
+  # android:
+  #   machine:
+  #     image: android:2022.01.1
+  #   working_directory: ~/repo
+  #   steps:
+  #     - checkout
+
+  #     - run:
+  #         name: install-go
+  #         command: |
+  #           v=1.19.2
+  #           curl --silent --show-error --location --fail --retry 3 --output /tmp/go${v}.tgz \
+  #             "https://go.dev/dl/go$v.linux-arm64.tar.gz"
+  #           sudo tar -C /usr/local -xzf /tmp/go${v}.tgz
+  #           rm /tmp/go${v}.tgz
+
+  #     - run:
+  #         name: test
+  #         command: |
+  #           uname -a
+  #           export PATH=/usr/local/go/bin:$PATH
+  #           go version
+  #           go test -race ./...
+  #

.github/workflows/build.yml

@@ -23,5 +23,12 @@ jobs:
         run: |
           set -x
           for a in $(go tool dist list); do
-            GOOS=${a%%/*} GOARCH=${a#*/} go build
+            export GOOS=${a%%/*}
+            export GOARCH=${a#*/}
+
+            go test -c
+            # Building for Android or iOS requires cgo
+            if [ "$GOOS" != 'android' ] && [ "$GOOS" != 'ios' ]; then
+              go build ./cmd/fsnotify
+            fi
           done