Create initial Go module

Ref #1

Create an initial Go module with a simple unit test and a makefile. This
can be tested using a CI pipeline, which will ensure that the following
commits don't break anything.

.gitignore

@@ -15,6 +15,9 @@
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
 
+# build directory
+tracker/build
+
 # Dependency directories (remove the comment below to include it)
 # vendor/
 

tracker/Makefile

@@ -0,0 +1,7 @@
+.PHONY: build test
+
+build:
+	go build -o build/
+
+test:
+	go test -v ./...

tracker/go.mod

@@ -0,0 +1,3 @@
+module git.faercol.me/faercol/public-ip-tracker/tracker
+
+go 1.16

tracker/main.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func testMethod(a int) int {
+	return a + 2
+}
+
+func main() {
+	fmt.Println("public ip tracker")
+}

tracker/main_test.go

@@ -0,0 +1,9 @@
+package main
+
+import "testing"
+
+func TestTestMethod(t *testing.T) {
+	if testMethod(12) != 14 {
+		t.Fatalf("Unexpected result %d", testMethod((12)))
+	}
+}