[codemod] Add accordion props deprecation

.eslintignore

@@ -11,6 +11,7 @@
 /examples/material-ui-nextjs/src
 /packages/mui-codemod/lib
 /packages/mui-codemod/src/*/*.test/*
+/packages/mui-codemod/src/**/test-cases/*
 /packages/mui-icons-material/fixtures
 /packages/mui-icons-material/legacy
 /packages/mui-icons-material/lib

packages/mui-codemod/CONTRIBUTING.md

@@ -0,0 +1,55 @@
+# Contributing
+
+## Understanding the codemod
+
+The codemod is a tool that helps developers migrate thier codebase when we introduced changes in new version. The changes could be deprecations, enhancements, or breaking changes.
+
+The codemod is based on [jscodeshift](https://github.com/facebook/jscodeshift) which is a wrapper of [recast](https://github.com/benjamn/recast).
+
+## Adding a new codemod
+
+1. Create a new folder in `packages/mui-codemod/src/*/*` with the name of the codemod.
+2. The folder should include:
+   - `<codemod>.js` - the transform implementation
+   - `<codemod>.test.js` - tests for the codemod (use jscodeshift from the `testUtils` folder)
+   - `test-cases` - folder with fixtures for the codemod
+     - `actual.js` - the input for the codemod
+     - `expected.js` - the expected output of the codemod
+3. Use [astexplorer](https://astexplorer.net/) to check the AST types and properties (set </> to @babel/parser because we use [`tsx`](https://github.com/benjamn/recast/blob/master/parsers/babel.ts) as a default parser for our codemod).
+4. [Test the codemod locally](#local)
+5. Add the codemod to README.md
+
+## Testing
+
+I recommend to follow these steps to test the codemod:
+
+- Create an `actual.js` file with the code you want to transform.
+- Run [local](#local) transformation to check if the codemod is correct.
+- Copy the transformed code to `expected.js`.
+- Run `pnpm tc <codemod>` to final check if the codemod is correct.
+
+💡 The reason that I don't recommend creating the `expected.js` and run the test with `pnpm` script is because the transformation is likely not pretty-printed and it's hard to compare the output with the expected output.
+
+### Local transformation (while developing)
+
+Open the terminal at root directory and run the codemod to test the transformation, for example, testing the `accordion-props` codemod:
+
+```bash
+node packages/mui-codemod/codemod deprecations/accordion-props packages/mui-codemod/src/deprecations/accordion-props/test-cases/theme.actual.js
+```
+
+### CI (after opening a PR)
+
+To simulate a consumer-facing experience on any project before merging the PR, open the CodeSandbox CI build and copy the link from the "Local Install Instructions" section.
+
+Run the codemod to test the transformation:
+
+```bash
+npx @mui/codemod@<link> <codemod> <path>
+```
+
+For example:
+
+```bash
+npx @mui/codemod@https://pkg.csb.dev/mui/material-ui/commit/39bf9464/@mui/codemod deprecations/accordion-props docs/src/modules/brandingTheme.ts
+```

packages/mui-codemod/README.md

@@ -60,9 +60,40 @@ npx @mui/codemod@latest <transform> <path> --jscodeshift="--printOptions='{\"quo
 
 ## Included scripts
 
+- [Deprecation](#deprecations)
+- [v5](#v500)
+- [v4](#v400)
+- [v1](#v100)
+- [v0.15](#v0150)
+
+### Deprecations
+
+```bash
+npx @mui/codemod@latest deprecations/all <path>
+```
+
+#### `all`
+
+A combination of all deprecations.
+
+#### `accordion-props`
+
+```diff
+ <Accordion
+-    TransitionComponent={CustomTransition}
+-    TransitionProps={{ unmountOnExit: true }}
++    slots={{ transition: CustomTransition }}
++    slotProps={{ transition: { unmountOnExit: true } }}
+ />
+```
+
+```bash
+npx @mui/codemod@latest deprecations/accordion-props <path>
+```
+
 ### v5.0.0
 
-### `base-use-named-exports`
+#### `base-use-named-exports`
 
 Base UI default exports were changed to named ones. Previously we had a mix of default and named ones.
 This was changed to improve consistency and avoid problems some bundlers have with default exports.
@@ -81,7 +112,7 @@ This codemod updates the import and re-export statements.
 npx @mui/codemod@latest v5.0.0/base-use-named-exports <path>
 ```
 
-### `base-remove-unstyled-suffix`
+#### `base-remove-unstyled-suffix`
 
 The `Unstyled` suffix has been removed from all Base UI component names, including names of types and other related identifiers.
 

packages/mui-codemod/codemod.js

@@ -10,27 +10,39 @@ const jscodeshiftDirectory = path.dirname(require.resolve('jscodeshift'));
 const jscodeshiftExecutable = path.join(jscodeshiftDirectory, jscodeshiftPackage.bin.jscodeshift);
 
 async function runTransform(transform, files, flags, codemodFlags) {
-  const transformerSrcPath = path.resolve(__dirname, './src', `${transform}.js`);
-  const transformerBuildPath = path.resolve(__dirname, './node', `${transform}.js`);
+  const paths = [
+    path.resolve(__dirname, './src', `${transform}/index.js`),
+    path.resolve(__dirname, './src', `${transform}.js`),
+    path.resolve(__dirname, './node', `${transform}/index.js`),
+    path.resolve(__dirname, './node', `${transform}.js`),
+  ];
+
   let transformerPath;
-  try {
-    await fs.stat(transformerSrcPath);
-    transformerPath = transformerSrcPath;
-  } catch (srcPathError) {
+  let error;
+  // eslint-disable-next-line no-restricted-syntax
+  for (const item of paths) {
     try {
-      await fs.stat(transformerBuildPath);
-      transformerPath = transformerBuildPath;
-    } catch (buildPathError) {
-      if (buildPathError.code === 'ENOENT') {
-        throw new Error(
-          `Transform '${transform}' not found. Check out ${path.resolve(
-            __dirname,
-            './README.md for a list of available codemods.',
-          )}`,
-        );
-      }
-      throw buildPathError;
+      // eslint-disable-next-line no-await-in-loop
+      await fs.stat(item);
+      error = undefined;
+      transformerPath = item;
+      break;
+    } catch (srcPathError) {
+      error = srcPathError;
+      continue;
+    }
+  }
+
+  if (error) {
+    if (error?.code === 'ENOENT') {
+      throw new Error(
+        `Transform '${transform}' not found. Check out ${path.resolve(
+          __dirname,
+          './README.md for a list of available codemods.',
+        )}`,
+      );
     }
+    throw error;
   }
 
   const args = [

packages/mui-codemod/src/deprecations/accordion-props/accordion-props.js

@@ -0,0 +1,95 @@
+import findComponentJSX from '../../util/findComponentJSX';
+import assignObject from '../../util/assignObject';
+import appendAttribute from '../../util/appendAttribute';
+
+/**
+ * @param {import('jscodeshift').FileInfo} file
+ * @param {import('jscodeshift').API} api
+ */
+export default function transformer(file, api, options) {
+  const j = api.jscodeshift;
+  const root = j(file.source);
+  const printOptions = options.printOptions;
+
+  findComponentJSX(j, { root, componentName: 'Accordion' }, (elementPath) => {
+    let index = elementPath.node.openingElement.attributes.findIndex(
+      (attr) => attr.type === 'JSXAttribute' && attr.name.name === 'TransitionComponent',
+    );
+    if (index !== -1) {
+      const removed = elementPath.node.openingElement.attributes.splice(index, 1);
+      let hasNode = false;
+      elementPath.node.openingElement.attributes.forEach((attr) => {
+        if (attr.name?.name === 'slots') {
+          hasNode = true;
+          assignObject(j, {
+            target: attr,
+            key: 'transition',
+            expression: removed[0].value.expression,
+          });
+        }
+      });
+      if (!hasNode) {
+        appendAttribute(j, {
+          target: elementPath.node,
+          attributeName: 'slots',
+          expression: j.objectExpression([
+            j.objectProperty(j.identifier('transition'), removed[0].value.expression),
+          ]),
+        });
+      }
+    }
+
+    index = elementPath.node.openingElement.attributes.findIndex(
+      (attr) => attr.type === 'JSXAttribute' && attr.name.name === 'TransitionProps',
+    );
+    if (index !== -1) {
+      const removed = elementPath.node.openingElement.attributes.splice(index, 1);
+      let hasNode = false;
+      elementPath.node.openingElement.attributes.forEach((attr) => {
+        if (attr.name?.name === 'slotProps') {
+          hasNode = true;
+          assignObject(j, {
+            target: attr,
+            key: 'transition',
+            expression: removed[0].value.expression,
+          });
+        }
+      });
+      if (!hasNode) {
+        appendAttribute(j, {
+          target: elementPath.node,
+          attributeName: 'slotProps',
+          expression: j.objectExpression([
+            j.objectProperty(j.identifier('transition'), removed[0].value.expression),
+          ]),
+        });
+      }
+    }
+  });
+
+  root.find(j.ObjectProperty, { key: { name: 'TransitionComponent' } }).forEach((path) => {
+    if (path.parent?.parent?.parent?.parent?.node.key?.name === 'MuiAccordion') {
+      path.replace(
+        j.property(
+          'init',
+          j.identifier('slots'),
+          j.objectExpression([j.objectProperty(j.identifier('transition'), path.node.value)]),
+        ),
+      );
+    }
+  });
+
+  root.find(j.ObjectProperty, { key: { name: 'TransitionProps' } }).forEach((path) => {
+    if (path.parent?.parent?.parent?.parent?.node.key?.name === 'MuiAccordion') {
+      path.replace(
+        j.property(
+          'init',
+          j.identifier('slotProps'),
+          j.objectExpression([j.objectProperty(j.identifier('transition'), path.node.value)]),
+        ),
+      );
+    }
+  });
+
+  return root.toSource(printOptions);
+}

packages/mui-codemod/src/deprecations/accordion-props/accordion-props.test.js

@@ -0,0 +1,53 @@
+import path from 'path';
+import { expect } from 'chai';
+import { jscodeshift } from '../../../testUtils';
+import transform from './accordion-props';
+import readFile from '../../util/readFile';
+
+function read(fileName) {
+  return readFile(path.join(__dirname, fileName));
+}
+
+describe('@mui/codemod', () => {
+  describe('deprecations', () => {
+    describe('accordion-props', () => {
+      it('transforms props as needed', () => {
+        const actual = transform({ source: read('./test-cases/actual.js') }, { jscodeshift }, {});
+
+        const expected = read('./test-cases/expected.js');
+        expect(actual).to.equal(expected, 'The transformed version should be correct');
+      });
+
+      it('should be idempotent', () => {
+        const actual = transform({ source: read('./test-cases/expected.js') }, { jscodeshift }, {});
+
+        const expected = read('./test-cases/expected.js');
+        expect(actual).to.equal(expected, 'The transformed version should be correct');
+      });
+    });
+
+    describe('[theme] accordion-props', () => {
+      it('transforms props as needed', () => {
+        const actual = transform(
+          { source: read('./test-cases/theme.actual.js') },
+          { jscodeshift },
+          {},
+        );
+
+        const expected = read('./test-cases/theme.expected.js');
+        expect(actual).to.equal(expected, 'The transformed version should be correct');
+      });
+
+      it('should be idempotent', () => {
+        const actual = transform(
+          { source: read('./test-cases/theme.expected.js') },
+          { jscodeshift },
+          {},
+        );
+
+        const expected = read('./test-cases/theme.expected.js');
+        expect(actual).to.equal(expected, 'The transformed version should be correct');
+      });
+    });
+  });
+});

packages/mui-codemod/src/deprecations/accordion-props/index.js

@@ -0,0 +1 @@
+export { default } from './accordion-props';

packages/mui-codemod/src/deprecations/accordion-props/test-cases/actual.js

@@ -0,0 +1,36 @@
+import Accordion from '@mui/material/Accordion';
+import { Accordion as MyAccordion } from '@mui/material';
+
+<Accordion slots={{
+  transition: CustomTransition
+}} slotProps={{
+  transition: { unmountOnExit: true }
+}} />;
+<MyAccordion slots={{
+  transition: CustomTransition
+}} slotProps={{
+  transition: transitionVars
+}} />;
+<Accordion
+  slots={{
+    root: 'div',
+    transition: CustomTransition
+  }}
+  slotProps={{
+    root: { className: 'foo' },
+    transition: { unmountOnExit: true }
+  }} />;
+<MyAccordion
+  slots={{
+    ...outerSlots,
+    transition: CustomTransition
+  }}
+  slotProps={{
+    ...outerSlotProps,
+    transition: { unmountOnExit: true }
+  }} />;
+// should skip non MUI components
+<NonMuiAccordion
+  TransitionComponent={CustomTransition}
+  TransitionProps={{ unmountOnExit: true }}
+/>;

packages/mui-codemod/src/deprecations/accordion-props/test-cases/expected.js

@@ -0,0 +1,36 @@
+import Accordion from '@mui/material/Accordion';
+import { Accordion as MyAccordion } from '@mui/material';
+
+<Accordion slots={{
+  transition: CustomTransition
+}} slotProps={{
+  transition: { unmountOnExit: true }
+}} />;
+<MyAccordion slots={{
+  transition: CustomTransition
+}} slotProps={{
+  transition: transitionVars
+}} />;
+<Accordion
+  slots={{
+    root: 'div',
+    transition: CustomTransition
+  }}
+  slotProps={{
+    root: { className: 'foo' },
+    transition: { unmountOnExit: true }
+  }} />;
+<MyAccordion
+  slots={{
+    ...outerSlots,
+    transition: CustomTransition
+  }}
+  slotProps={{
+    ...outerSlotProps,
+    transition: { unmountOnExit: true }
+  }} />;
+// should skip non MUI components
+<NonMuiAccordion
+  TransitionComponent={CustomTransition}
+  TransitionProps={{ unmountOnExit: true }}
+/>;