/
finders.js
185 lines (157 loc) · 4.91 KB
/
finders.js
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const path = require('path')
const fs = require('fs')
const packList = require('npm-packlist')
const precinct = require('precinct')
const resolve = require('resolve')
const readPkgUp = require('read-pkg-up')
const requirePackageName = require('require-package-name')
const alwaysIgnored = new Set(['aws-sdk'])
const debug = require('debug')('@netlify/zip-it-and-ship-it:finders')
const ignoredExtensions = new Set([
'.log',
'.lock',
'.html',
'.md',
'.map',
'.ts',
'.png',
'.jpeg',
'.jpg',
'.gif',
'.css',
'.patch'
])
function ignoreMissing(dependency, optional) {
return alwaysIgnored.has(dependency) || (optional && dependency in optional)
}
function includeModuleFile(packageJson, moduleFilePath) {
if (packageJson.files) {
return true
}
return !ignoredExtensions.has(path.extname(moduleFilePath))
}
function getDependencies(filename, basedir) {
const servicePath = basedir
const filePaths = new Set()
const modulePaths = new Set()
const pkgs = {}
const modulesToProcess = []
const localFilesToProcess = [filename]
function handle(name, basedir, optionalDependencies) {
const moduleName = requirePackageName(name.replace(/\\/, '/'))
if (alwaysIgnored.has(moduleName)) {
return
}
try {
const pathToModule = resolve.sync(path.join(moduleName, 'package.json'), {
basedir
})
const pkg = readPkgUp.sync({ cwd: pathToModule })
if (pkg) {
modulesToProcess.push(pkg)
}
} catch (e) {
if (e.code === 'MODULE_NOT_FOUND') {
if (ignoreMissing(moduleName, optionalDependencies)) {
debug(`WARNING missing optional dependency: ${moduleName}`)
return null
}
try {
// this resolves the requested import also against any set up NODE_PATH extensions, etc.
const resolved = require.resolve(name)
localFilesToProcess.push(resolved)
return
} catch (e) {
if (moduleName === 'encoding') {
// node-fetch has an undeclared peer dependency on encoding
// We add an exception for this one module because it is very popular and people complain about it
debug(`WARNING missing optional dependency: ${moduleName}`)
} else {
throw new Error(`Could not find "${moduleName}" module in file: ${filename.replace(
path.dirname(basedir),
''
)}.
Please ensure "${moduleName}" is installed in the project.`)
}
}
}
throw e
}
}
while (localFilesToProcess.length) {
const currentLocalFile = localFilesToProcess.pop()
if (filePaths.has(currentLocalFile)) {
continue
}
filePaths.add(currentLocalFile)
precinct.paperwork(currentLocalFile, { includeCore: false }).forEach(dependency => {
if (dependency.indexOf('.') === 0) {
const abs = resolve.sync(dependency, {
basedir: path.dirname(currentLocalFile)
})
localFilesToProcess.push(abs)
} else {
handle(dependency, servicePath)
}
})
}
while (modulesToProcess.length) {
const currentModule = modulesToProcess.pop()
const currentModulePath = path.join(currentModule.path, '..')
const packageJson = currentModule.packageJson
if (modulePaths.has(currentModulePath)) {
continue
}
modulePaths.add(currentModulePath)
pkgs[currentModulePath] = packageJson
;['dependencies', 'peerDependencies', 'optionalDependencies'].forEach(key => {
const dependencies = packageJson[key]
if (dependencies) {
Object.keys(dependencies).forEach(dependency => {
handle(dependency, currentModulePath, packageJson.optionalDependencies)
})
}
})
}
modulePaths.forEach(modulePath => {
const packageJson = pkgs[modulePath]
let moduleFilePaths
moduleFilePaths = packList.sync({ path: modulePath })
moduleFilePaths.forEach(moduleFilePath => {
if (includeModuleFile(packageJson, moduleFilePath)) {
filePaths.add(path.join(modulePath, moduleFilePath))
}
})
})
// TODO: get rid of this
const sizes = {}
filePaths.forEach(filepath => {
const stat = fs.lstatSync(filepath)
const ext = path.extname(filepath)
sizes[ext] = (sizes[ext] || 0) + stat.size
})
debug('Sizes per extension: ', sizes)
return Array.from(filePaths)
}
function findModuleDir(dir) {
let basedir = dir
while (!fs.existsSync(path.join(basedir, 'package.json'))) {
const newBasedir = path.dirname(basedir)
if (newBasedir === basedir) {
return null
}
basedir = newBasedir
}
return basedir
}
function findHandler(functionPath) {
if (fs.lstatSync(functionPath).isFile()) {
return functionPath
}
const handlerPath = path.join(functionPath, `${path.basename(functionPath)}.js`)
if (!fs.existsSync(handlerPath)) {
return
}
return handlerPath
}
module.exports = { getDependencies, findModuleDir, findHandler }