The result of diff is different from the result of git diff

[yikengboy]

Describe the bug
Comparing the two commitIds with git diff and cloc --git-diff-rel respectively, the results seem to be completely different.

**cloc; OS; Centos

• cloc version: lastest
• OS version: Linux

To Reproduce
git diff --shortstat ff2a43717e7f9d2d3966b155912c0c4b9b3009da 18d4f379a1424c4a23995b6e1cf9a1f939b10379

cloc --git-diff-rel ff2a43717e7f9d2d3966b155912c0c4b9b3009da 18d4f379a1424c4a23995b6e1cf9a1f939b10379

[AlDanial]

Point me to the repo with these commits. Or, if that's not practical, find a common repo we can both access which demonstrates the problem you have in mind.

[yikengboy]

Okay, I'll get a common repo when I have time, thanks for your answer

[yikengboy]

Well ! I know it. Because I change file-name in one commit, git diff can discern this change.
however, cloc --git-diff-rel will generated two records of increase and decrease!
How can I identify this situation?

[AlDanial]

git returns a "similarity index" on with diff --find-renames which can identify this situation. I even have a place-holder option in cloc, currently commented out, called --git-diff-simindex to support this capability but I have not implemented it yet. It is tricky.

[yikengboy]

all right, is this feature possible?

[AlDanial]

It is possible, but as to when, I can't say. The cleanest thing to do will be close this issue then create a new one specifically requesting this feature, ie, "implement --git-diff-simindex". You're welcome to do that and it will keep my mind on it.