BC not running as Git diff/merge tool

[Abscissa]

My environment:
- Beyond Compare v4.0.7 Pro Linux
- Debian testing 64-bit
- Git v2.4.6
- At the command line, running "bcompare" does successfully launch Beyond Compare.

I followed the instructions at http://www.scootersoftware.com/suppo...b_vcs#gitlinux and my ~/.gitconfig looks like this:

[user]
	name = [my name]
	email = [my email]
[push]
	default = simple
[core]
	autocrlf = False
[diff]
	tool = bc3
[difftool]
	bc3 = trustExitCode
[merge]
	tool = bc3
[mergetool]
	bc3 = trustExitCode

My project's .git/config contains nothing related to diff/merge or beyond compare.

But when I run "git difftool some_file_in_my_project", nothing happens. No error message, no output to stdout/stderr, beyond compare does not run, and the exit code is 0.

I tried replacing all the "bc3" with "bc", but it did not help.

[chrestomanci]

I don't think your ~/.gitconfig is quite correct. I think you need to specify the command to start beyond compare. The relevant stanza of my ~/.gitconfig is:

[diff]
        tool = bc4
[difftool]
        prompt = false
[difftool "bc4"]
        trustExitCode = true
        cmd = `/usr/bin/bcompare $LOCAL $REMOTE`
[merge]
        tool = bc4
[merge "tool"]
        bc4 = trustExitCode
[mergetool "bc4"]
        cmd = /usr/bin/bcompare "$PWD/$LOCAL" "$PWD/$REMOTE" "$PWD/$BASE" "$PWD/$MERGED"
        keepBackup = false
        trustExitCode = false

The other thing I have though of, is that git diff will only show you something if there is a diff to show, otherwise it will silently exit. Are you sure that the file you are trying to diff is changed and not staged for commit? Does a plain old git diff produce any output?

[Abscissa]

The other thing I have though of, is that git diff will only show you something if there is a diff to show, otherwise it will silently exit. Are you sure that the file you are trying to diff is changed and not staged for commit? Does a plain old git diff produce any output?

Ahh, that was the problem. I didn't know that. And none of the files in the project were changed, so plain "git diff" and "git difftool" weren't doing anything either. Thanks.