Merge branch 'AcklenAvenue-templatize-cwd'

Author: sun-zheng-an

README.md

@@ -122,7 +122,9 @@ type: `String`
 
 default: [`process.cwd()`](http://nodejs.org/api/process.html#process_process_cwd)
 
-Sets the current working directory for the command.
+Sets the current working directory for the command. This can be a [template][] which can be interpolated by some [file][] info (e.g. `file.path`).
+
+[template]: http://lodash.com/docs#template
 
 #### options.templateData
 

index.js

@@ -49,7 +49,7 @@ function runCommands(commands, options, file, done) {
 
     var child = exec(command, {
       env: options.env,
-      cwd: options.cwd,
+      cwd: gutil.template(options.cwd, context),
       maxBuffer: options.maxBuffer,
       timeout: options.timeout
     }, function (error, stdout, stderr) {