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[pre-build] IPFS transformations
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| const fs = require('fs') | |
| const path = require('path') | |
| const jscodeshift = require('jscodeshift') | |
| const updatePackageJson = function (fileInfo) { | |
| const json = JSON.parse(fileInfo.source) | |
| // Check if the package is using react-scripts | |
| const usesReactScripts = | |
| (json.dependencies && json.dependencies['react-scripts']) || | |
| (json.devDependencies && json.devDependencies['react-scripts']) | |
| if (usesReactScripts) { | |
| json.homepage = '.' | |
| } | |
| return JSON.stringify(json, null, 2) | |
| } | |
| const updateNextConfig = function (fileInfo, api) { | |
| const j = api.jscodeshift | |
| const root = j(fileInfo.source) | |
| function updateImagesObject(objExpression) { | |
| let imagesObjectFound = false | |
| objExpression.properties.forEach((property) => { | |
| if (property.key.name === 'images') { | |
| imagesObjectFound = true | |
| let unoptimizedPropertyFound = false | |
| property.value.properties.forEach((prop) => { | |
| if (prop.key.name === 'unoptimized') { | |
| unoptimizedPropertyFound = true | |
| prop.value.value = true | |
| } | |
| }) | |
| if (!unoptimizedPropertyFound) { | |
| property.value.properties.push( | |
| j.property('init', j.identifier('unoptimized'), j.literal(true)) | |
| ) | |
| } | |
| } | |
| }) | |
| if (!imagesObjectFound) { | |
| objExpression.properties.push( | |
| j.property( | |
| 'init', | |
| j.identifier('images'), | |
| j.objectExpression([ | |
| j.property('init', j.identifier('unoptimized'), j.literal(true)), | |
| ]) | |
| ) | |
| ) | |
| } | |
| } | |
| // Case 1: Direct assignment to module.exports | |
| root | |
| .find(j.AssignmentExpression) | |
| .filter( | |
| (path) => | |
| path.value.left.type === 'MemberExpression' && | |
| path.value.left.object.name === 'module' && | |
| path.value.left.property.name === 'exports' && | |
| (path.value.right.type === 'ObjectExpression' || | |
| (path.value.right.type === 'CallExpression' && | |
| path.value.right.arguments.length === 1 && | |
| path.value.right.arguments[0].type === 'ObjectExpression')) | |
| ) | |
| .forEach((path) => { | |
| if (path.value.right.type === 'ObjectExpression') { | |
| updateImagesObject(path.value.right) | |
| } else if ( | |
| path.value.right.type === 'CallExpression' && | |
| path.value.right.arguments.length === 1 && | |
| path.value.right.arguments[0].type === 'ObjectExpression' | |
| ) { | |
| updateImagesObject(path.value.right.arguments[0]) | |
| } | |
| }) | |
| // Case 2: Separate nextConfig object | |
| root | |
| .find(j.VariableDeclarator) | |
| .filter( | |
| (path) => | |
| path.value.id.type === 'Identifier' && | |
| path.value.id.name === 'nextConfig' && | |
| path.value.init.type === 'ObjectExpression' | |
| ) | |
| .forEach((path) => updateImagesObject(path.value.init)) | |
| return root.toSource({ trailingComma: true }) | |
| } | |
| const TRANSFORMATIONS = { | |
| "../next.config.js": updateNextConfig, | |
| "../next.config.mjs": updateNextConfig, | |
| "../package.json": updatePackageJson, | |
| }; | |
| const simpleDiff = (oldSource, newSource) => { | |
| const oldLines = oldSource.split('\n'); | |
| const newLines = newSource.split('\n'); | |
| const diffLines = []; | |
| for (let i = 0; i < Math.max(oldLines.length, newLines.length); i++) { | |
| if (oldLines[i] !== newLines[i]) { | |
| diffLines.push({ lineNumber: i + 1, oldLine: oldLines[i] || '', newLine: newLines[i] || '' }); | |
| } | |
| } | |
| return diffLines; | |
| }; | |
| const applyTransformations = () => { | |
| for (const [fileName, transform] of Object.entries(TRANSFORMATIONS)) { | |
| const fullPath = path.resolve(fileName) | |
| if (fs.existsSync(fullPath)) { | |
| console.log(`attempting transform on ${fullPath}`) | |
| const fileInfo = { | |
| path: fullPath, | |
| source: fs.readFileSync(fullPath, 'utf8'), | |
| } | |
| let newSource | |
| if (fullPath.endsWith('package.json')) { | |
| newSource = updatePackageJson(fileInfo) | |
| } else { | |
| const api = { jscodeshift } | |
| newSource = transform(fileInfo, api) | |
| } | |
| const changes = simpleDiff(fileInfo.source, newSource) | |
| if (changes.length > 0) { | |
| console.log(`Changes in ${fullPath}:`) | |
| changes.forEach((change) => { | |
| console.log('- ' + change.oldLine) | |
| console.log('+ ' + change.newLine) | |
| }) | |
| } | |
| fs.writeFileSync(fullPath, newSource, 'utf8') | |
| } else { | |
| console.log(`skipping transform on ${fullPath} as it was not found`) | |
| } | |
| } | |
| } | |
| applyTransformations() |
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