Added CLI commands

cli/System.go

@@ -0,0 +1,41 @@
+package cli
+
+import (
+	"os"
+	"runtime"
+
+	"git.akyoto.dev/cli/q/log"
+)
+
+func System(args []string) int {
+	line := "%-19s%s\n"
+
+	// Platform
+	log.Info.Printf(line, "Platform:", runtime.GOOS)
+
+	// Architecture
+	log.Info.Printf(line, "Architecture:", runtime.GOARCH)
+
+	// Go
+	log.Info.Printf(line, "Go:", runtime.Version())
+
+	// Directory
+	directory, err := os.Getwd()
+
+	if err == nil {
+		log.Info.Printf(line, "Directory:", directory)
+	} else {
+		log.Info.Printf(line, "Directory:", err.Error())
+	}
+
+	// Compiler
+	executable, err := os.Executable()
+
+	if err == nil {
+		log.Info.Printf(line, "Compiler:", executable)
+	} else {
+		log.Info.Printf(line, "Compiler:", err.Error())
+	}
+
+	return 0
+}