问题
When using git difftool --tool=bc3 from Git-Bash I got a BC3 window for each file. But to see the next window I had to close the previous one.
I wanted to see all diffed files at the same time as tabs in a single BC3 window.
回答1:
I found the right hint on StackOverflow: #17736427.
Using git difftool --dir-diff (having BC3 configured as difftool) is OK for me.
Who wants to use this, may find the BC3 switch /expandall helpful.
My previous solution was, to call git-difftool recursively.
May be this trick is helpful for someone else. So I want to share it here.
Change your git-config like this:
[difftool "bc3_all"]
cmd = "git difftool --tool=bc3_single \"$REMOTE\" &"
[difftool "bc3_single"]
cmd = "bcomp \"$REMOTE\" \"$LOCAL\""
My first attempt was to start BC3 directly as a background process:
[difftool "bc3"]
cmd = "bcomp \"$REMOTE\" \"$LOCAL\" &"
It did not work, because $LOCAL is usually a temparary file.
When the BC3 window(s) show up, the $LOCAL file is already deleted.
来源：https://stackoverflow.com/questions/33897826/how-to-open-git-difftool-for-multiple-files-in-a-single-bcomp3-window