git difftool does not work

[vjedlicka]

I entered these two commands in the git bash:

git config --global diff.tool bc3
git config --global difftool.bc3.path "c:/Program Files (x86)/Beyond Compare 4/bcomp.exe"

When I enter "git difftool", beyond compare with empty panels opens.

[lhasadad]

your passing it no variables. try modifying the command line using the following information:

When git difftool is invoked with this tool (either through the -t or --tool option or the diff.tool configuration variable) the configured command line will be invoked with the following variables available: $LOCAL is set to the name of the temporary file containing the contents of the diff pre-image and $REMOTE is set to the name of the temporary file containing the contents of the diff post-image. $MERGED is the name of the file which is being compared. $BASE is provided for compatibility with custom merge tool commands and has the same value as $MERGED.

You may need to call a script and have the script launch bc picking up the environment variables.

[Aaron]

The config looks correct, following our recommended setup here:
http://www.scootersoftware.com/suppo...vcs#gitwindows

Which version of Git are you running?
If you call git diff, does the built-in tool report and show the file differences?

Update: Verified with Git 2.8.3

[cpower]

I am having a similar issue , and I am running 2.9.3.windows.1 on a Win 7 Enterprise machine.
my gitconfig:
[diff]
tool = bc
[difftool "bc"]
path = c:/Program Files (x86)/Beyond Compare 3/bcomp.exe
[difftool]
prompt = false
[merge]
tool = bc
[mergetool]
prompt = false
keepBackup = false
[mergetool "bc"]
trustExitCode = true
path = c:/Program Files (x86)/Beyond Compare 3/bcomp.exe

When I enter "git difftool foo.txt" nothing happens. No panel is opened. Can anyone help me here?

Thanks

[Aaron]

Hello,

And if you use the "bc3" configuration instructions, does this help:
http://www.scootersoftware.com/suppo...vcs#gitwindows

This method uses "bc3" since Git has built-in support for detecting BC3 if you use the "bc3" keyword.

Also, you will need quotes around your path = "variables"