164e43912d
This PR adds the codemods transforming certain fields from `metadata` export to `viewport` export, will still preserve rest metadata export properties. We don't cover `generateMetadata` to `generateViewport` as there might be more complex logic inside the function which is hard to apply the codemods rules. TLDR: Codemods for #57302
85 lines
2.1 KiB
TypeScript
85 lines
2.1 KiB
TypeScript
import type { API, FileInfo } from 'jscodeshift'
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export default function transformer(file: FileInfo, api: API) {
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const j = api.jscodeshift
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const root = j(file.source)
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// Find the metadata export
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const metadataExport = root.find(j.ExportNamedDeclaration, {
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declaration: {
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type: 'VariableDeclaration',
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declarations: [
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{
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id: { name: 'metadata' },
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},
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],
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},
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})
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if (metadataExport.size() !== 1) {
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return
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}
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const metadataObject = metadataExport.find(j.ObjectExpression).get(0).node
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if (!metadataObject) {
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console.error('Could not find metadata object')
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return
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}
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let metadataProperties = metadataObject.properties
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let viewportProperties
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const viewport = metadataProperties.find(
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(prop) => prop.key.name === 'viewport'
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)
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if (viewport) {
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viewportProperties = viewport.value.properties
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metadataProperties = metadataProperties.filter(
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(prop) => prop.key.name !== 'viewport'
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)
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} else {
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viewportProperties = []
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}
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const colorScheme = metadataProperties.find(
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(prop) => prop.key.name === 'colorScheme'
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)
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if (colorScheme) {
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viewportProperties.push(colorScheme)
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metadataProperties = metadataProperties.filter(
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(prop) => prop.key.name !== 'colorScheme'
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)
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}
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const themeColor = metadataProperties.find(
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(prop) => prop.key.name === 'themeColor'
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)
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if (themeColor) {
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viewportProperties.push(themeColor)
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metadataProperties = metadataProperties.filter(
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(prop) => prop.key.name !== 'themeColor'
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)
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}
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// Update the metadata export
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metadataExport
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.find(j.ObjectExpression)
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.replaceWith(j.objectExpression(metadataProperties))
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// Create the new viewport object
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const viewportExport = j.exportNamedDeclaration(
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j.variableDeclaration('const', [
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j.variableDeclarator(
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j.identifier('viewport'),
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j.objectExpression(viewportProperties)
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),
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])
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)
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// Append the viewport export to the body of the program
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if (viewportProperties.length) {
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root.get().node.program.body.push(viewportExport)
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}
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return root.toSource()
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}
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