Windows Git will not start external diff at all

Windows Git will not start external diff at all

[Jaakko Pääkkönen]

Hi

I am using beyond compare, but it does not really matter which one
because even I create a dummy script as a external diff program, it
will not get called ever. Only internal diff is started.

Re-installing git will not remove the problem. I am using the latest git

Any hints how I can debug git difftool?

--jaakko

Re: Windows Git will not start external diff at all

[Johannes Schindelin]

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Hi Jaakko,

On Tue, 6 Sep 2016, Jaakko Pääkkönen wrote:

> I am using beyond compare, but it does not really matter which one
> because even I create a dummy script as a external diff program, it
> will not get called ever. Only internal diff is started.

Any chance you can come up with an MCVE [*1*] using a dummy script?

> 
> Re-installing git will not remove the problem. I am using the latest git
> 
> Any hints how I can debug git difftool?

Sure. First hint: set GIT_TRACE=1. Next hint: difftool is a shell script,
so you can modify it, say, by inserting a `set -x` which will trace the
commands that are called.

Ciao,
Johannes

Footnote *1*: http://stackoverflow.com/help/mcve