feat: override defaults

.changeset/brave-dragons-sniff.md

@@ -0,0 +1,5 @@
+---
+"create-t3-app": minor
+---
+
+Add the option to override default files

cli/src/helpers/overrideDefaults.ts

@@ -0,0 +1,40 @@
+import chalk from "chalk";
+import fs from "fs-extra";
+import { type Ora } from "ora";
+import path from "path";
+import { env } from "process";
+
+// this function first checks if one of the following env variables is set
+// T3_CONFIG, XDG_CONFIG_HOME, HOME
+// if so given path is joined with t3stack/ (unless it's the T3_CONFIG var, then it uses the directory directly) and override/
+// then the first path, which exists, is returned
+const getOverridePath = (): string | undefined => {
+  return ["T3_CONFIG", "XDG_CONFIG_HOME", "HOME"]
+    .map((key) => [key, env[key]])
+    .filter(([_, envValue]) => envValue !== undefined)
+    .map(([envKey, envValue]) =>
+      path.join(
+        envValue as string,
+        envKey === "T3_CONFIG" ? "." : "t3stack",
+        "override"
+      )
+    )
+    .find(fs.existsSync);
+};
+
+export const overrideDefaults = (spinner: Ora, projectPath: string) => {
+  const overridePath = getOverridePath();
+  if (!overridePath) return;
+
+  spinner.info(
+    chalk.green(
+      `Found override directory - ${chalk.bgGreen(chalk.white(overridePath))}`
+    )
+  );
+
+  fs.copySync(overridePath, projectPath, { overwrite: true });
+
+  spinner.info(
+    chalk.green("Successfully override files in just created project")
+  );
+};

cli/src/helpers/scaffoldProject.ts

@@ -1,3 +1,4 @@
+import { overrideDefaults } from "./overrideDefaults.js";
 import chalk from "chalk";
 import fs from "fs-extra";
 import inquirer from "inquirer";
@@ -103,6 +104,8 @@ export const scaffoldProject = async ({
   const scaffoldedName =
     projectName === "." ? "App" : chalk.cyan.bold(projectName);
 
+  overrideDefaults(spinner, projectDir);
+
   spinner.succeed(
     `${scaffoldedName} ${chalk.green("scaffolded successfully!")}\n`
   );