What are the arguments that git diff uses for diff command? -


when invoke git diff, it's using diff utility compare files, however, not in default way. it's using number of options, can name are:

  • different markers before lines: +/- instead of >/<.
  • a few lines of context before , after different lines.

but i'm not sure these changes. others , command line arguments git pass diff achieve it's default output? , if want compare, say, a.txt b.txt , make diff file way git makes it, command line should use?

git not use default *nix or gnu diff, implements own diff algorithm.

the code located in files builtin/diff.c, builtin/diff-tree.c, builtin/diff-index.c , builtin/diff-files.c in git source tree.

it can thereby fancy things advanced word-diff , has reliable implementation platforms.

the default (line-based) unified-diff format patches can produce compatible other imlementations of format. iirc, gnu diff (or patch?) added more tolerance extras git puts in diff, more resilient when applying git-generated patches.


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