added an export_all_client script

scripts/_steps.js

@@ -0,0 +1,103 @@
+module.exports = function (argv, steps) {
+
+  var async = require('async');
+  var fs = require('fs');
+  var path = require('path');
+  var format = require('util').format;
+  var cp = require('child_process');
+
+  function log() {
+    var out = format.apply(console, arguments);
+    if (argv.verbose) {
+      out = '\n' + out + '\n';
+    }
+    console.log(out);
+  }
+
+  var tasks = {
+    run: function (params, exitCb) {
+      var cmd = params.cmd;
+      var args = params.args;
+      var opts = {
+        stdio: argv.verbose ? 'inherit' : 'ignore'
+      };
+
+      if (params.cwd) {
+        opts.cwd = path.resolve(params.cwd);
+      }
+
+      log('running', cmd, args.join(' '), (opts.cwd ? 'in ' + opts.cwd : ''));
+
+      var proc = cp.spawn(cmd, args, opts);
+
+      proc.on('error', function (err) {
+        console.error('Error! --', err.message);
+        process.exit(1);
+      });
+
+      proc.on('exit', function (status) {
+        if (status) {
+          console.error('Error! --', cmd, 'exit status was', status);
+          process.exit(1);
+        } else {
+          exitCb();
+        }
+      });
+    },
+    copy: function (params, done) {
+      var from = params.from;
+      var to = params.to;
+
+      log('copying', from, 'to', to);
+
+      var read = fs.createReadStream(from);
+      var write = fs.createWriteStream(to);
+
+      read.pipe(write);
+
+      read.on('error', function (err) {
+        console.error('unable to read: ' + from);
+        console.error(err.message);
+        process.exit(1);
+      });
+
+      write.on('error', function (err) {
+        console.error('unable to write to: ' + to);
+        console.error(err.message);
+        process.exit(1);
+      });
+
+      write.on('finish', function () {
+        done();
+      });
+    }
+  };
+
+  async.forEachSeries(steps, function (args, done) {
+    // pass the callback to the task
+    args.push(done);
+
+    // get the task name
+    var taskName = args.shift();
+
+    // find the task
+    var task = tasks;
+    taskName.split('.').forEach(function (name) {
+      if (task && task[name]) {
+        task = task[name];
+      } else {
+        throw new Error(taskName + ' is an invalid task, unable to get ' + name + ' from ' + task);
+      }
+    });
+
+    if (typeof task === 'function') {
+      task.apply(null, args);
+    } else {
+      throw new Error(taskName + ' is an invalid task, does not resolve to a function.');
+    }
+  }, function () {
+    console.log('✔︎');
+    process.exit();
+  });
+
+};