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### What?
Now that @phanect added support for ESM PostCSS config files in PR
#63109 (original issue #34448), PostCSS can use ESM config by default.
It needs to use an `.mjs` extension by default because `create-next-app`
scaffolds CommonJS apps by default.
This will also work with ESM projects which have added `"type":
"module"` in their `package.json`
### Why?
1. To convert one more file to ESM
2. To use the modern format
3. To follow other similar migrations that have taken place in the
Next.js codebase (eg. `next.config.mjs`)
### How?
- Change file extensions from `.cjs` to `.mjs` (change similar to PR
#58380)
- Change module format from CommonJS to ESM
- Add type for the config, for users who enable `checkJs: true` in
`tsconfig.json`
Co-authored-by: Sam Ko <sam@vercel.com>
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### What?
Prevent confusing error messages when changing to `"type": "module"` in
`package.json`
```
./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[2].oneOf[8].use[1]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[2].oneOf[8].use[2]!./src/styles/index.css
Error [ERR_REQUIRE_ESM]: require() of ES Module /path/to/my/repo/components/postcss.config.js from /path/to/my/repo/components/node_modules/next/dist/lib/find-config.js not supported.
Instead change the require of postcss.config.js in /path/to/my/repo/components/node_modules/next/dist/lib/find-config.js to a dynamic import() which is available in all CommonJS modules.
```
### Why?
Even though PostCSS itself [supports ESM and TypeScript configuration
files](https://github.com/postcss/postcss-load-config/issues/230),
Next.js itself does not (because of `next/lib/find-config`):
- https://github.com/vercel/next.js/issues/34448
### How?
By switching to `.cjs`, the config will stay recognized as CommonJS even
after switching to `"type": "module"` in `package.json`
cc @balazsorban44
---------
Co-authored-by: Sam Ko <sam@vercel.com>
### What?
This PR removes an unnecessary await keyword from the
writeSema.release() call. The release method does not return a promise,
hence awaiting it is not required.
### Why?
Awaiting on writeSema.release() which does not return a promise can lead
to confusion and potentially hinder performance. By removing the await
keyword, the code is simplified and aligns with the intended synchronous
nature of the release method.
### How?
Reviewed the writeSema.release() method implementation to confirm it
does not return a promise.
Removed the await keyword from the writeSema.release() call to ensure
the code correctly reflects the synchronous operation.
Co-authored-by: righthot <righthot@everon.co.kr>
Co-authored-by: Steven <steven@ceriously.com>
### What?
The [create-next-app
documentation](https://nextjs.org/docs/app/api-reference/create-next-app#non-interactive)
under API reference says that;
> Further, you can negate default options by prefixing them with --no-
(e.g., --no-eslint).
When I tried to use --no-import-alias, I thought that it would
automatically use the default alias (@/*), but it does not.
### Why?
Each option has --no prefix control but import-alias has no --no prefix
control to give default value to program.
In an [Interactive](https://nextjs.org/#interactive) approach, the user
can select a prompt; `Would you like to customize the default import
alias (@/*)? No / Yes.` If the user selects no, then the default alias
is applied with @/*.
### How?
Implementing a condition solve the problem for general purpose. If
arguments includes `--no-import-alias` then the importAlias section
automatically apply the default value.
---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
Co-authored-by: Steven <steven@ceriously.com>
### What?
Removing `autoprefixer` from the default Tailwind CSS templates. (It can
be installed afterward)
### Why?
After some investigation by @timneutkens, `autoprefixer` seems to
introduce some compilation overhead
### How?
Removing `autoprefixer` from the auto-installed dependency list, it
would be up to the developer to install this plugin if they need it.
[Slack
thread](https://vercel.slack.com/archives/C04DUD7EB1B/p1695288906722539)
### What?
On windows the .git/* files are read only, when the CNA "import path" script attempts to open one of the .git/* files
### Why?
attempting to open any of the .git/* files results in an error thrown by CNA and CNA exists, hence not finishing the setup of a new project
### How?
My suggested fix uses the fast-glob ignore option to exclude the .git folder, I also moved the the ts(js)config.json exclusion into the ignore (was an "if" before)
- Fixes#61411
- Discussion https://github.com/vercel/next.js/discussions/61261
- Updates `tailwindcss` package
- Fixes classes order based on `eslint-plugin-tailwindcss`
- Remove/updates certain classes that now have shorthands, for example
`lg:h-auto lg:w-auto` is now `lg:size-auto`
- Removes unnecessary curly braces
Co-authored-by: Sam Ko <sam@vercel.com>
## Description
This PR ensures that the default prettier config is used for examples
and templates.
This config is compatible with `prettier@3` as well (upgrading prettier
is bigger change that can be a future PR).
## Changes
- Updated `.prettierrc.json` in root with `"trailingComma": "es5"` (will
be needed upgrading to prettier@3)
- Added `examples/.prettierrc.json` with default config (this will
change every example)
- Added `packages/create-next-app/templates/.prettierrc.json` with
default config (this will change every template)
## Related
- Fixes#54402
- Closes#54409
The PR further reduces the `create-next-app` installation size by
another 80 KiB:
- Replace the callback version of Node.js built-in `dns` API usage with
`dns/promise` + async/await
- Replace `got` w/ `fetch` since Next.js and `create-next-app` now
target Node.js 18.17.0+
- Download and extract the tar.gz file in the memory (without creating
temporary files). This improves the performance.
- Some other minor refinements.
Following these changes, the size of `dist/index.js` is now 536 KiB.
fixes#58640
When there is no tsconfig.json, `npm run dev` generates `tsconfig.json`,
which has no `target` option.
But create-next-app generates `tsconfig.json` with `"target": "es5"`
Related to: #44567
Related to: #14390
Had some spare time and was trying to get more familiar with the
codebase.
Added a few types to `create-next-app` here. Nothing fancy!
---------
Co-authored-by: Steven <steven@ceriously.com>
