date format in msbuild script?

Question

In my msbuild script I'm creating a zip file with year/month/day in the zip filename, but month and day are always written with no leading zero.

Is there a way to add leading zero to my zip filename?

<Time>
  <Output TaskParameter="Year" PropertyName="Year" />
  <Output TaskParameter="Month" PropertyName="Month" />
  <Output TaskParameter="Day" PropertyName="Day" />
</Time>

<PropertyGroup>
  <ZipOutDir>C:\output</ZipOutDir>
  <ZipFileName>Application_$(Year)$(Month)$(Day).zip</ZipFileName>
</PropertyGroup>

And the result is: 'Application_2010122.zip' (with no leading zero for january, as you can see)

Answer 1

You could use the MSBuild extension pack a la:

http://www.msbuildextensionpack.com/help/3.5.3.0/html/9c5401ed-6f55-089e-3918-2476c186ca66.htm

Or use the format param to the Time task from community tasks [which you appear to be using]

http://stackoverflow.com/questions/878037/msbuild-msbuildcommunitytasks-task-time

Answer 2

It's because MSBuild operates solely with strings. You'll have to either modify existing tasks so that all properties will return strings instead of ints (or whatever integer value they return), or create a separate task which will format year, month and day according to your needs.