更新

TongjiUniApp/node_modules/cross-env/src/index.js

@@ -0,0 +1,95 @@
+const {spawn} = require('cross-spawn')
+const commandConvert = require('./command')
+const varValueConvert = require('./variable')
+
+module.exports = crossEnv
+
+const envSetterRegex = /(\w+)=('(.*)'|"(.*)"|(.*))/
+
+function crossEnv(args, options = {}) {
+  const [envSetters, command, commandArgs] = parseCommand(args)
+  const env = getEnvVars(envSetters)
+  if (command) {
+    const proc = spawn(
+      // run `path.normalize` for command(on windows)
+      commandConvert(command, env, true),
+      // by default normalize is `false`, so not run for cmd args
+      commandArgs.map(arg => commandConvert(arg, env)),
+      {
+        stdio: 'inherit',
+        shell: options.shell,
+        env,
+      },
+    )
+    process.on('SIGTERM', () => proc.kill('SIGTERM'))
+    process.on('SIGINT', () => proc.kill('SIGINT'))
+    process.on('SIGBREAK', () => proc.kill('SIGBREAK'))
+    process.on('SIGHUP', () => proc.kill('SIGHUP'))
+    proc.on('exit', (code, signal) => {
+      let crossEnvExitCode = code
+      // exit code could be null when OS kills the process(out of memory, etc) or due to node handling it
+      // but if the signal is SIGINT the user exited the process so we want exit code 0
+      if (crossEnvExitCode === null) {
+        crossEnvExitCode = signal === 'SIGINT' ? 0 : 1
+      }
+      process.exit(crossEnvExitCode) //eslint-disable-line no-process-exit
+    })
+    return proc
+  }
+  return null
+}
+
+function parseCommand(args) {
+  const envSetters = {}
+  let command = null
+  let commandArgs = []
+  for (let i = 0; i < args.length; i++) {
+    const match = envSetterRegex.exec(args[i])
+    if (match) {
+      let value
+
+      if (typeof match[3] !== 'undefined') {
+        value = match[3]
+      } else if (typeof match[4] === 'undefined') {
+        value = match[5]
+      } else {
+        value = match[4]
+      }
+
+      envSetters[match[1]] = value
+    } else {
+      // No more env setters, the rest of the line must be the command and args
+      let cStart = []
+      cStart = args
+        .slice(i)
+        // Regex:
+        // match "\'" or "'"
+        // or match "\" if followed by [$"\] (lookahead)
+        .map(a => {
+          const re = /\\\\|(\\)?'|([\\])(?=[$"\\])/g
+          // Eliminate all matches except for "\'" => "'"
+          return a.replace(re, m => {
+            if (m === '\\\\') return '\\'
+            if (m === "\\'") return "'"
+            return ''
+          })
+        })
+      command = cStart[0]
+      commandArgs = cStart.slice(1)
+      break
+    }
+  }
+
+  return [envSetters, command, commandArgs]
+}
+
+function getEnvVars(envSetters) {
+  const envVars = {...process.env}
+  if (process.env.APPDATA) {
+    envVars.APPDATA = process.env.APPDATA
+  }
+  Object.keys(envSetters).forEach(varName => {
+    envVars[varName] = varValueConvert(envSetters[varName], varName)
+  })
+  return envVars
+}