Nuxt/build/start.js

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#!/usr/bin/env node
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const now = Date.now()
const { readFileSync, readJSONSync, writeFileSync, copySync, removeSync } = require('fs-extra')
const { resolve, relative } = require('path')
// Dirs
const rootDir = resolve(__dirname, '..')
const startDir = resolve(rootDir, 'start')
// Read main package.json
const packageJSON = readJSONSync(resolve(rootDir, 'package.json'))
// Required and Excluded packages for start
let requires = [
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'source-map-support',
'pretty-error'
]
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const excludes = [
'path',
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'fs',
'http',
'module'
].concat(Object.keys(packageJSON.devDependencies))
// Parse dist/core.js for all external dependencies
const requireRegex = /require\('([-@/\w]+)'\)/g
const rawCore = readFileSync(resolve(rootDir, 'dist/core.js'))
let match = requireRegex.exec(rawCore)
while (match) {
requires.push(match[1])
match = requireRegex.exec(rawCore)
}
// Apply Excludes
requires = requires.filter(r => excludes.indexOf(r) === -1)
// Resolve version constrains
let dependencies = {}
requires.forEach(r => {
if (!packageJSON.dependencies[r]) {
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console.warn('Cannot resolve dependency version for ' + r)
return
}
dependencies[r] = packageJSON.dependencies[r]
})
// Drop fields
let drops = ['devDependencies', 'scripts', 'nyc', 'types']
drops.forEach(k => {
delete packageJSON[k]
})
// Update dependencies
packageJSON.dependencies = dependencies
// Update package meta
packageJSON.name = 'nuxt-start'
packageJSON.description = 'runtime-only build for nuxt'
// Update package.json
writeFileSync(resolve(startDir, 'package.json'), JSON.stringify(packageJSON, null, 2))
// Copy required files
const excludeFiles = [
'README.md',
'.gitignore'
]
packageJSON.files.forEach(file => {
if (excludeFiles.indexOf(file) !== -1) {
return
}
let src = resolve(rootDir, file)
let dst = resolve(startDir, file)
// console.log(relative(rootDir, src), '~>', relative(rootDir, dst))
removeSync(dst)
copySync(src, dst)
})
// Remove extras
const extraFiles = [
'bin/nuxt-build',
'bin/nuxt-generate',
'bin/nuxt-dev',
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'bin/nuxt',
'dist/nuxt.js',
'dist/nuxt.js.map'
]
extraFiles.forEach(file => {
removeSync(resolve(startDir, file))
})
// Patch index.js
const startIndexjs = resolve(startDir, 'index.js')
writeFileSync(startIndexjs, String(readFileSync(startIndexjs)).replace('./dist/nuxt', './dist/core'))
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// Patch bin/nuxt-start
const binStart = resolve(startDir, 'bin/nuxt-start')
writeFileSync(binStart, String(readFileSync(binStart)).replace(/nuxt start/g, 'nuxt-start'))
const ms = Date.now() - now
console.log(`Generated ${packageJSON.name}@${packageJSON.version} in ${ms}ms`)