Merge pull request +10025 from c9/localfs-env

wait for reading env before calling spawn

node_modules/vfs-local/localfs.js

@@ -130,8 +130,12 @@ module.exports = function setup(fsOptions) {
     }
     
     // Fetch environment variables from the login shell
+    var waitForEnv = null;
     if (!isWin) {
+        waitForEnv = [];
         _execFile(BASH, ["-lc", "printenv -0"], function(error, stdout, stderr) {
+            var pending = waitForEnv;
+            waitForEnv = null;
             if (!error && !stderr && stdout) {
                 var env = fsOptions.defaultEnv;
                 stdout.split("\x00").forEach(function(entry) {
@@ -140,6 +144,7 @@ module.exports = function setup(fsOptions) {
                         env[entry.slice(0, i)] = entry.slice(i + 1);
                 });
             }
+            pending.forEach(function(x) { x(); });
         });
     }
     
@@ -1447,6 +1452,9 @@ module.exports = function setup(fsOptions) {
     }
     
     function spawn(executablePath, options, callback) {
+        if (waitForEnv)
+            return waitForEnv.push(spawn.bind(null, executablePath, options, callback));
+            
         var args = options.args || [];
         
         _setDefaultEnv(options);
@@ -2166,6 +2174,9 @@ module.exports = function setup(fsOptions) {
     }
 
     function execFile(executablePath, options, callback) {
+        if (waitForEnv)
+            return waitForEnv.push(execFile.bind(null, executablePath, options, callback));
+        
         if (isWin && execFileWin(executablePath, options, callback))
             return;