* Temporarily move postcss to dependencies
This is unfortunate but upgrading postcss-js caused postcss to not be installed at all. This is fine except in this case of NPM <= 6 when running npx tailwindcss init, or yarn v1, or npm 7/8 with legacy peer deps behavior and doing a similar thing. Deduping will still allow the user to install postcss and upgrade it and Tailwind CSS will pick it up. A more permanent solution may involve hijacking require or something similar.
* Update changelog
* add prettier-plugin-tailwindcss
This will use the prettier plugin in our tests as well, yay consistency!
* ensure that both `group` and `peer` can't be used in `@apply`
This was only configured for `group`
* expose `sortClassList` on the context
This function will be used by the `prettier-plugin-tailwindcss` plugin,
this way the sorting happens within Tailwind CSS itself adn the
`prettier-plugin-tailwindcss` plugin doesn't have to use internal /
private APIs.
The signature looks like this:
```ts
function sortClassList(classes: string[]): string[]
```
E.g.:
```js
let sortedClasses = context.sortClassList(['p-1', 'm-1', 'container'])
```
* update changelog
* add sort test for utilities with the important modifier e.g.: `!p-4`
* Add failing tests for negative utility detection
We're not generating them properly in all cases, when using at-apply we sometimes crash, and safelisting doesn't currently work as expected.
* Refactor
* Generate utilities for negatives before and after the prefix
* Properly detect negative utilities with prefixes in the safelist
* Refactor test a bit
* Add class list tests
* Update changelog
* quick fix for incorrect arbitrary properties
Turns out that using links like [https://example.com] causes arbitrary
properties to generate invalid css.
This is a very dirty quick fix for this specific case, so we have to fix
this properly!
* update changelog
* ensure content files are available in config
If you use the cli with the `--content` option, then we first resolve
the config (empty), then add the `content` to the config. The issue is
that this means that the content will be empty when you resolve it
initially. This results in a warning in your terminal.
Now, we will make sure to merge 2 configs if you have the `--content`
data passed. We will also make sure to override the final
`config.content.files` to whatever you passed in to make sure that this
is the same behaviour as before.
* update changelog
* ensure that we compile the postcss nesting plugin
* re-add optional chaining
This will allow us to be 100% sure that we can safely call
hasOwnProperty in case we get some very strange objects.
This will now also be compiled/transpiled by esbuild.
* import the internal postcss nesting plugin
This allows us to work on it without re-compiling while running tests.
Just like we do with all other code.
* update changelog
