feat: Add validation for import aliases

.changeset/great-buckets-relate.md

@@ -0,0 +1,5 @@
+---
+"create-t3-app": minor
+---
+
+Disable incorrect import aliases and show error when they are attempted

cli/src/cli/index.ts

@@ -197,19 +197,7 @@ export const runCli = async () => {
  logger.warn(`
  ${CREATE_T3_APP} needs an interactive terminal to provide options`);
 
- const { shouldContinue } = await inquirer.prompt<{
- shouldContinue: boolean;
- }>({
- name: "shouldContinue",
- type: "confirm",
- message: `Continue scaffolding a default T3 app?`,
- default: true,
- });
-
- if (!shouldContinue) {
- logger.info("Exiting...");
- process.exit(0);
- }
+ await promptShouldContinue();
 
  logger.info(`Bootstrapping a default T3 app in ./${cliResults.appName}`);
  } else {
@@ -220,6 +208,22 @@ export const runCli = async () => {
  return cliResults;
 };
 
+const promptShouldContinue = async () => {
+ const { shouldContinue } = await inquirer.prompt<{
+ shouldContinue: boolean;
+ }>({
+ name: "shouldContinue",
+ type: "confirm",
+ message: `Continue scaffolding a default T3 app?`,
+ default: true,
+ });
+
+ if (!shouldContinue) {
+ logger.info("Exiting...");
+ process.exit(0);
+ }
+};
+
 const promptAppName = async (): Promise<string> => {
  const { appName } = await inquirer.prompt<Pick<CliResults, "appName">>({
  name: "appName",
@@ -327,5 +331,14 @@ const promptImportAlias = async (): Promise<string> => {
  },
  });
 
+ // tsconfig-paths do not support paths starting with "." or "/"
+ if (importAlias.startsWith(".") || importAlias.startsWith("/")) {
+ logger.error("Import alias can't start with '.' or '/'.");
+
+ await promptShouldContinue();
+
+ return promptImportAlias();
+ }
+
  return importAlias;
 };