[codemod] Prepare the import path breaking change

[oliviertassinari]

Prepare the import path flattening breaking change, stuff like:

-+import Table, {
-  TableBody,
-  TableCell,
-  TableFooter,
-  TablePagination,
-  TableRow,
-} from 'material-ui/Table';
+import TableRow from 'material-ui/TableRow';
+import TablePagination from 'material-ui/TablePagination';
+import TableFooter from 'material-ui/TableFooter';
+import TableCell from 'material-ui/TableCell';
+import TableBody from 'material-ui/TableBody';
+import Table from 'material-ui/Table';

People should be able to upgrade without any pain with this codemod. This is definitely more verbose. Things to take into account:

1. It's a simple pattern to learn. People won't need to go back and forth with the documentation to learn the import paths 💭.
2. People bundle size will decrease 🚀.
3. In an ideal world, we would import everything from the root module and tree sharking would be taken care of for us. This change doesn't matter in this world ☮️.

import {
  Table,
  TableBody,
  TableCell,
  TableFooter,
  TablePagination,
  TableRow,
} from 'material-ui';

For #9673

[oliviertassinari]

Here is the output running the script on our documentation:
$ jscodeshift -t packages/material-ui-codemod/src/v1.0.0/import-path.js docs/

[mbrookes]

Small glitch?

[oliviertassinari]

It's a stress test. Why?

[mbrookes]

None of the other imports are prefixed, so...

[oliviertassinari]

People might be aliasing the modules:
import foo from 'bar' or import { foo as bar} from 'baz'.

[mbrookes]

I still don't get why MuiLinearProgress rather than just LinearProgress, but whatever.

[oliviertassinari]

It tests that the following transformation is done:

input

import { LinearProgress as MuiLinearProgress } from 'material-ui/Progress';

output

import MuiLinearProgress from 'material-ui/LinearProgress';

[oliviertassinari]

@tomscholz What's your concern here?

[tomscholz]

The reaction was more of a "no-brainer", that's is also why I removed it. My concern was that, like you motioned, this way it's more verbose. After completely reading your initial comment, I now agree with the changes :) Sorry for the confusion 😅

-Tom