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make-spawn-args.js
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make-spawn-args.js
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/* eslint camelcase: "off" */
const isWindows = require('./is-windows.js')
const setPATH = require('./set-path.js')
const { resolve } = require('path')
const which = require('which')
const npm_config_node_gyp = require.resolve('node-gyp/bin/node-gyp.js')
const escape = require('./escape.js')
const makeSpawnArgs = options => {
const {
event,
path,
scriptShell = isWindows ? process.env.ComSpec || 'cmd' : 'sh',
binPaths,
env = {},
stdio,
cmd,
args = [],
stdioString = false,
} = options
const spawnEnv = setPATH(path, binPaths, {
// we need to at least save the PATH environment var
...process.env,
...env,
npm_package_json: resolve(path, 'package.json'),
npm_lifecycle_event: event,
npm_lifecycle_script: cmd,
npm_config_node_gyp,
})
let doubleEscape = false
const isCmd = /(?:^|\\)cmd(?:\.exe)?$/i.test(scriptShell)
if (isCmd) {
let initialCmd = ''
let insideQuotes = false
for (let i = 0; i < cmd.length; ++i) {
const char = cmd.charAt(i)
if (char === ' ' && !insideQuotes) {
break
}
initialCmd += char
if (char === '"' || char === "'") {
insideQuotes = !insideQuotes
}
}
let pathToInitial
try {
pathToInitial = which.sync(initialCmd, {
path: spawnEnv.path,
pathext: spawnEnv.pathext,
}).toLowerCase()
} catch (err) {
pathToInitial = initialCmd.toLowerCase()
}
doubleEscape = pathToInitial.endsWith('.cmd') || pathToInitial.endsWith('.bat')
}
let script = cmd
for (const arg of args) {
script += isCmd
? ` ${escape.cmd(arg, doubleEscape)}`
: ` ${escape.sh(arg)}`
}
const spawnArgs = isCmd
? ['/d', '/s', '/c', script]
: ['-c', '--', script]
const spawnOpts = {
env: spawnEnv,
stdioString,
stdio,
cwd: path,
...(isCmd ? { windowsVerbatimArguments: true } : {}),
}
return [scriptShell, spawnArgs, spawnOpts]
}
module.exports = makeSpawnArgs