Making vim show a git diff with colors like a git diff command (red-delete, green-add)

I ran git config --global commit --verbose

This makes it so running git ci is like running git commit --verbose

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    Anyways, if I run git diff, lines that are removed (start with ‘-‘) are in red, and lines that are added (start with ‘+’) are in green.

    If I run git ci, vim syntax highlights lines that are removed as regular color (white), and lines that are added as cyan.

    How can I make vim syntax highlight show removed lines in red and addes ones in green?

    The vim status line says it’s editing file “~/code.git/.git/COMMIT_EDITMSG”. I don’t know much about vim syntax highlighting, but I know it’s configurable. I’m not sure how this situation would be configurable, because I assume vim uses file extensions in deciding which syntax highlighting rules to follow (I could be way off here) and git isn’t giving this file an extension.

    EDIT: Actually, vim must be detecting this is a git commit file, because it’s syntax highlighting the first 50 characters as yellow. Assuming that’s to indicate what can nicely fit on an emailed subject line for a patch.

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  • 3 Solutions collect form web for “Making vim show a git diff with colors like a git diff command (red-delete, green-add)”

    The short version: edit a file ~/.vim/after/syntax/gitcommit.vim, and add to it something like this:

    hi diffAdded   ctermfg=green
    hi diffRemoved ctermfg=red

    The longer version, explaining how I got there:

    When you edit a commit message, run :set ft. This will show you that Git commit files have filetype gitcommit. Consequently, to modify highlighting for commit messages you need to edit a file syntax/gitcommit.vim, and since you want your changes to override normal highlighting, you need to put that in an after/ directory. Thus ~/.vim/after/syntax/gitcommit.vim.

    Now, to find out what to change. There is this tremendously useful piece of code, that I picked up somewhere (from tpope, IIRC), and that I have been using happily ever after:

    nmap <C-S-P> :call <SID>SynStack()<CR>
    function! <SID>SynStack()
      if !exists("*synstack")
      echo map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")')

    With this, open a verbose commit, go to a removed chunk, and press CtrlShiftP. It will show something like ['gitcommitDiff', 'diffRemoved']. Then go to an added chunk, and get ['gitcommitDiff', 'diffAdded'].

    Looking at /usr/share/vim/vim74/syntax/gitcommit.vim shows what’s going on: syntax/gitcommit.vim includes syntax/diff.vim, which is the standard highlighting file for diff. Thus the patterns above.

    Looking at the end of /usr/share/vim/vim74/syntax/diff.vim, you’ll find other patterns you might need to change.

    Syntax highlighting works when the commit message is defined as gitcommit filetype in the file .vim/filetype.vim:

    autocmd BufNewFile,BufRead *.git/COMMIT_EDITMSG set ft=gitcommit

    Same as the accepted answer, but some different colours that I find useful for contrast:

    hi diffAdded cterm=bold ctermfg=DarkGreen
    hi diffRemoved cterm=bold ctermfg=DarkRed
    hi diffFile cterm=NONE ctermfg=DarkBlue
    hi gitcommitDiff cterm=NONE ctermfg=DarkBlue
    hi diffIndexLine cterm=NONE ctermfg=DarkBlue
    hi diffLine cterm=NONE ctermfg=DarkBlue
    Git Baby is a git and github fan, let's start git clone.