Explaining tf diff

Question

Using Visual Studio 2008 tools,

I am trying to get an ASCII diff of change sets 14318 and 14317.

I can do so using GUI:

tf changeset 14318
         


        

Answer 1

You're just not using the correct syntax when calling it. In this case, it tried to do a diff between your working copy, and the base repository version, of (non-existing) files 14318 and 14317.

What you need to do instead is to use a changeset range in /version, like this:

tf diff $/Foo /version:C14317~C14318 /recursive /format:unified > foo.diff

Note that you can use ~ with any other version specs - labels, dates etc. See here for details.