initual upload

cli/command.go

@@ -0,0 +1,6 @@
+package cli
+
+//Command interface that cli commands should conform to
+type Command interface {
+	Run() error
+}

cli/pipe-reader.go

@@ -0,0 +1,33 @@
+package cli
+
+import (
+	"bufio"
+	"errors"
+	"io"
+	"os"
+)
+
+// ReadPipe reads in the content that is piped to the cli and returns it as a string
+func ReadPipe() (string, error) {
+	info, err := os.Stdin.Stat()
+	if err != nil {
+		panic(err)
+	}
+
+	if info.Mode()&os.ModeCharDevice != 0 || info.Size() <= 0 {
+		return "", errors.New("the command is intended to work with pipes")
+	}
+
+	reader := bufio.NewReader(os.Stdin)
+	var output []rune
+
+	for {
+		input, _, err := reader.ReadRune()
+		if err != nil && err == io.EOF {
+			break
+		}
+		output = append(output, input)
+	}
+
+	return string(output), nil
+}

cli/test-helper.go

@@ -0,0 +1,11 @@
+package cli
+
+import (
+	"os"
+	"strings"
+)
+
+//MockCLICall mock arguments passed to the CLI for tests
+func MockCLICall(cmd string) {
+	os.Args = strings.SplitAfter(cmd, " ")
+}

cli/version-comand.go

@@ -0,0 +1,14 @@
+package cli
+
+import "fmt"
+
+//VersionCommand used to retrieve the current version of the terraform cli
+type VersionCommand struct {
+	Version string
+}
+
+//Run run the command
+func (c *VersionCommand) Run() error {
+	fmt.Printf("Current version: v%s\n", c.Version)
+	return nil
+}

go.mod

@@ -0,0 +1,3 @@
+module gocli
+
+go 1.16