feat: throw error when shell execution failed

exec.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
 	"os/exec"
 	"strings"
@@ -18,32 +17,31 @@ func (ctx TemplateContext) run(command string) (string, error) {
 	}
 	err := cmd.Run()
 	if err != nil {
-		return "", errors.New(stdout.String())
+		return "", fmt.Errorf("Failed to execute the command:\nCommand: `%s`\nError: %s\n", command, stdout.String())
 	}
 	return stdout.String(), nil
 }
 
-func (ctx TemplateContext) raw(command string) string {
+func (ctx TemplateContext) raw(command string) (string, error) {
 	out, err := ctx.run(command)
 	if err != nil {
-		fmt.Println(err)
-		return "error"
+		return "", err
 	}
-	return strings.TrimSpace(out)
+	return strings.TrimSpace(out), nil
 }
 
-func (ctx TemplateContext) codeBlock(command string) string {
+func (ctx TemplateContext) codeBlock(command string) (string, error) {
 	out, err := ctx.run(command)
 	if err != nil {
-		return fmt.Sprintf("> Failed to execute the command:\n> `%s`\n> %s\n", command, err.Error())
+		return "", err
 	}
-	return fmt.Sprintf("\n```\n%s\n```\n", out)
+	return fmt.Sprintf("\n```\n%s\n```\n", out), nil
 }
 
-func (ctx TemplateContext) inline(command string) string {
+func (ctx TemplateContext) inline(command string) (string, error) {
 	out, err := ctx.run(command)
 	if err != nil {
-		return fmt.Sprintf("`Failed to execute the command: '%s'. %s`", command, err.Error())
+		return "", err
 	}
-	return fmt.Sprintf("`%s`", strings.Trim(out, "\n "))
+	return fmt.Sprintf("`%s`", strings.Trim(out, "\n ")), nil
 }