Detect operating system

checks/checks.go

@@ -10,6 +10,7 @@ import (
 	"os"
 	"os/exec"
 	"regexp"
+	"runtime"
 	"strings"
 	"time"
 
@@ -22,7 +23,14 @@ func runCLICommand(command api.CLIStepCLICommand, variables map[string]string) (
 	finalCommand := InterpolateVariables(command.Command, variables)
 	result.FinalCommand = finalCommand
 
-	cmd := exec.Command("sh", "-c", finalCommand)
+	var cmd *exec.Cmd
+
+	if runtime.GOOS == "windows" {
+		cmd = exec.Command("powershell", "-Command", finalCommand)
+	} else {
+		cmd = exec.Command("sh", "-c", finalCommand)
+	}
+
 	cmd.Env = append(os.Environ(), "LANG=en_US.UTF-8")
 	b, err := cmd.CombinedOutput()
 	if ee, ok := err.(*exec.ExitError); ok {

client/lessons.go

@@ -21,8 +21,9 @@ const BaseURLOverrideRequired = "override"
 
 type CLIData struct {
 	// ContainsCompleteDir bool
-	BaseURLDefault string
-	Steps          []CLIStep
+	BaseURLDefault          string
+	Steps                   []CLIStep
+	AllowedOperatingSystems []string
 }
 
 type CLIStep struct {

cmd/submit.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"errors"
 	"fmt"
+	"runtime"
 
 	"github.com/bootdotdev/bootdev/checks"
 	api "github.com/bootdotdev/bootdev/client"
@@ -43,6 +44,18 @@ func submissionHandler(cmd *cobra.Command, args []string) error {
 	}
 
 	data := lesson.Lesson.LessonDataCLI.CLIData
+
+	isAllowedOS := false
+	for _, system := range data.AllowedOperatingSystems {
+		if system == runtime.GOOS {
+			isAllowedOS = true
+		}
+	}
+
+	if !isAllowedOS {
+		return fmt.Errorf("lesson is not supported for your operating system: \"%s\". Try again with one of the following: %v", runtime.GOOS, data.AllowedOperatingSystems)
+	}
+
 	overrideBaseURL := viper.GetString("override_base_url")
 	if overrideBaseURL != "" {
 		fmt.Printf("Using overridden base_url: %v\n", overrideBaseURL)

main.go

@@ -1,5 +1,3 @@
-//go:build darwin || linux
-
 package main
 
 import (
@@ -15,7 +13,7 @@ import (
 var version string
 
 func main() {
-	err := cmd.Execute(strings.Trim(version, "\n"))
+	err := cmd.Execute(strings.TrimSpace(version))
 	if err != nil {
 		os.Exit(1)
 	}

version.txt

@@ -1 +1 @@
-v1.20.3
+v1.20.4