Nuxt/scripts/start

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#!/usr/bin/env node
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const now = Date.now()
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const {
readFileSync,
readJSONSync,
writeFileSync,
copySync,
removeSync
} = require('fs-extra')
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const { resolve } = 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
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let requires = ['source-map-support', 'pretty-error', 'minimist']
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const excludes = ['path', '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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// eslint-disable-next-line no-console
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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'
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packageJSON.bin = {
'nuxt-start': './bin/nuxt-start'
}
// Update package.json
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writeFileSync(
resolve(startDir, 'package.json'),
JSON.stringify(packageJSON, null, 2)
)
// Copy required files
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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')
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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')
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writeFileSync(
binStart,
String(readFileSync(binStart)).replace(/nuxt start/g, 'nuxt-start')
)
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// eslint-disable-next-line no-console
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console.log(
`Generated ${packageJSON.name}@${packageJSON.version} in ${Date.now() -
now}ms`
)