This is in order to use the Compare with Remote Server function on the File menu. This is configured in Preferences in the File Compare category. It also enables a Compare button on the dialog box when you do a Put, and Dreamweaver detects that the files are out of sync.

Before I installed Xcode, I tried using /usr/bin/opendiff, but when I tried to use the Compare with Remote Server function, nothing happened. I tried selecting the TextWrangler app after I installed that, but again, nothing happened. I expect it to work like it does on my Windows laptop, where it opens the utility comparing the local and remote versions of the file.

I'd been to that page before, but looked at it again. While I was still on OS XLion, I used the Browse feature on the File Compare Preferences screen to select /usr/bin/opendiff. It populated the box with Macintosh HD:usr:bin:open diff, and then the Compare with Remote Server function worked. (It was the path to the program that I had incorrect - I had entered it just like the example on the Help page.)

HOWEVER, now that I have upgraded to Mountain Lion (and I also installed the latest XCode), the function is broken again. The Preferences setting was changed (by XCode?) to Macintish HD:usr:bin:xcrun, and when I try to use the Compare with Remote Server function, nothing happens. ALSO, when I try to select a different program in Preferences, the path is not updated. It stays pointed to the xcrun program.

So, still broken! You're my only hope, Ad-OBE WON-ks!

Yalpi,

I was able to do the Compare with Remote Server function successfully after I set the Dreamweaver preference to /usr/local/bin/twdiff.  Thanks!

Before that I had tried to set the Dreamweaver preference to /use/bin/opendiff as it says in the help document, but Dreamweaver changed the path to Macintosh HD:usr:bin:xcrun, and the function did not work.

Elaine