In Mercurial, one can define a pattern for external diff and merge tools (so that they are called only for files matching the pattern specified):
[diff-patterns]
**.ext = difftool
[merge-patterns]
**.ext = mergetool
How to define such patterns in Git?
[mergetool] section in git-config(1) does not mention any pattern, mask or anyting similar.
EDIT:
Here is a relevant part of my .git/config:
[diff]
tool = difftool
[difftool "difftool"]
cmd = difftool.git.sh "$LOCAL" "$REMOTE" "$BASE"
[merge]
tool = mergetool
[mergetool "mergetool"]
cmd = mergetool.git.sh "$LOCAL" "$REMOTE" "$BASE" "$MERGED"
Now it works for all files.
I want my difftool and mergetool to be called only for files with names ending with .ext
EDIT:
I have added a file .git/info/attributes with the following contents:
*.ext diff=difftool
*.ext merge=mergetool
I've also added
[diff "difftool"]
name = my custom diff driver
driver = difftool.git.sh %A %B %O
[merge "mergetool"]
name = my custom merge driver
driver = mergetool.git.sh %A %B %O %A
to my .git/config.
Now I run
git difftool
It calls KDiff3 instead of my difftool. What do I do wrong?
Remark: I'm playing with difftool instead of mergetool because it is easier to test and I believe that if I manage to configure difftool, it will be obvious for me how to configure mergetool.
EDIT:
Difftool now works.
.git/config:
[diff "difftool"]
command = difftool.git.sh
.git/info/attributes:
.ext diff=difftool
difftool.git.sh (in PATH)
#!/bin/sh
difftool.jar "$2" "$5"
But there is a side-effect on Windows: git diff now results in APPCRASH.
EDIT:
I have figured out how to avoid crashing or hanging of git diff: one should use git difftool or call git diff through sh: sh -c "git diff"