mirror of
https://github.com/airblade/vim-gitgutter.git
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253 lines
8.9 KiB
Markdown
253 lines
8.9 KiB
Markdown
## Vim Git Gutter
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A Vim plugin which shows a git diff in the 'gutter' (sign column). It shows whether each line has been added, modified, and where lines have been removed.
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This is a port of the [Git Gutter][st2gg] plugin for Sublime Text 2.
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### Screenshot
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In the screenshot above you can see:
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* Line 15 has been modified.
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* Lines 21-24 are new.
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* A line or lines were removed between lines 25 and 26.
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### Installation
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Before installation, please check your Vim supports signs by running `:echo has('signs')`. `1` means you're all set; `0` means you need to install a Vim with signs support. If you're compiling Vim yourself you need the 'big' or 'huge' feature set. [MacVim][] supports signs.
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If you don't have a preferred installation method, I recommend installing [pathogen.vim][pathogen], and then simply copy and paste:
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```
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cd ~/.vim/bundle
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git clone git://github.com/airblade/vim-gitgutter.git
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```
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Or for [Vundle](https://github.com/gmarik/vundle) users:
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Add `Bundle 'airblade/vim-gitgutter'` to your `~/.vimrc` and then:
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* either within Vim: `:BundleInstall`
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* or in your shell: `vim +BundleInstall +qall`
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### Usage
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You don't have to do anything: it just works.
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You can explicitly turn vim-gitgutter off and on (defaults to on):
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* turn off with `:GitGutterDisable`
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* turn on with `:GitGutterEnable`
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* toggle with `:GitGutterToggle`.
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And you can turn line highlighting on and off (defaults to off):
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* turn on with `:GitGutterLineHighlightsEnable`
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* turn off with `:GitGutterLineHighlightsDisable`
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* toggle with `:GitGutterLineHighlightsToggle`.
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Furthermore you can jump between `[count]` hunks:
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* jump to next hunk: `:[count]GitGutterNextHunk [count]`
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* jump to previous hunk: `:[count]GitGutterPrevHunk [count]`.
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You may want to add mappings for these if you use them often. For example:
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```viml
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nmap <silent> ]h :<C-U>execute v:count1 . "GitGutterNextHunk"<CR>
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nmap <silent> [h :<C-U>execute v:count1 . "GitGutterPrevHunk"<CR>
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```
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Finally, you can force vim-gitgutter to update its signs across all buffers with `:GitGutterAll`.
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See the customisation section below for how to change the defaults.
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### Customisation
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You can customise:
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* The sign column's colours
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* Whether or not the sign column is shown when there aren't any signs (defaults to no)
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* The signs' colours
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* Line highlights
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* Whether or not vim-gitgutter is on initially (defaults to on)
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* Whether or not line highlighting is on initially (defaults to off)
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* Whether or not vim-gitgutter runs on `BufEnter` (defaults to yes)
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* Whether or not vim-gitgutter runs for all buffers on `FocusGained` (defaults to yes)
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Please note that vim-gitgutter won't override any colours or highlights you've set in your colorscheme.
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#### Sign column
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The background colour of the sign column is controlled by the `SignColumn` highlight group. This will be either set in your colorscheme or Vim's default.
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To find out where it's set, and to what it's set, use `:verbose highlight SignColumn`.
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If your `SignColumn` is not set (`:highlight SignColumn` gives you `SignColumn xxx cleared`), vim-gitgutter will set it to the same as your line number column (i.e. the `LineNr` highlight group).
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To change your sign column's appearance, update your colorscheme or `~/.vimrc` like this:
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* For the same appearance as your line number column: `highlight clear SignColumn`
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* For a specific appearance on terminal Vim: `highlight SignColumn ctermbg=whatever`
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* For a specific appearance on gVim/MacVim: `highlight SignColumn guibg=whatever`
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By default the sign column will appear when there are signs to show and disappear when there aren't. If you would always like the sign column to be there, add `let g:gitgutter_sign_column_always = 1` to your `~/.vimrc`.
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#### Signs' colours
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To customise these, set up the following highlight groups in your colorscheme or `~/.vimrc`:
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```viml
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GitGutterAdd " an added line
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GitGutterChange " a changed line
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GitGutterDelete " at least one removed line
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GitGutterChangeDelete " a changed line followed by at least one removed line
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```
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You can either set these with `highlight GitGutterAdd {key}={arg}...` or link them to existing highlight groups with, say, `highlight link GitGutterAdd DiffAdd`.
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#### Line highlights
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Similarly to the signs' colours, set up the following highlight groups in your colorscheme or `~/.vimrc`:
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```viml
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GitGutterAddLine " default: links to DiffAdd
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GitGutterChangeLine " default: links to DiffChange
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GitGutterDeleteLine " default: links to DiffDelete
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GitGutterChangeDeleteLine " default: links to GitGutterChangeLineDefault, i.e. DiffChange
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```
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#### To turn off vim-gitgutter by default
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Add `let g:gitgutter_enabled = 0` to your `~/.vimrc`.
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#### To turn on line highlighting by default
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Add `let g:gitgutter_highlight_lines = 1` to your `~/.vimrc`.
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#### To stop vim-gitgutter running on `BufEnter`
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This is on by default but causes a noticeable lag for some people. To turn it off, add this to your `~/.vimrc`:
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```
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let g:gitgutter_on_bufenter = 0
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```
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#### To stop vim-gitgutter running for all buffers on `FocusGained`
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This is on by default but causes a noticeable lag for some people. To turn it off, add this to your `~/.vimrc`:
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```viml
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let g:gitgutter_all_on_focusgained = 0
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```
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Note that this is always off with gVim on Windows due to a Vim/shell bug causing an infinite loop.
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### FAQ
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> Why are the colours in the sign column weird?
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Your colorscheme is configuring the `SignColumn` highlight group weirdly. Please see the section above on customising the sign column.
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> Why does the window flicker when the signs are redrawn?
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This happens on certain combinations of OS and Vim. You can prevent the flicker by adding `let g:gitgutter_sign_column_always = 1` to your `~/.vimrc`.
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> There's a noticeable lag when vim-gitter runs; how can I avoid it?
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By default vim-gitgutter runs often so the signs are as accurate as possible. However on some systems this causes a noticeable lag. If you would like to trade a little accuracy for speed, add one or both of these to your `~/.vimrc`:
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```viml
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let g:gitgutter_on_bufenter = 0
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let g:gitgutter_all_on_focusgained = 0
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```
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> Why is no sign shown if I delete the first line(s) in a file?
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vim-gitgutter shows removed lines with a sign on the line above. In this case there isn't a line above so vim-gitgutter can't show the sign.
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> What happens if I also use another plugin which uses signs (e.g. Syntastic)?
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Vim only allows one sign per line. Before adding a sign to a line, vim-gitgutter checks whether a sign has already been added by somebody else. If so it doesn't do anything. In other words vim-gitgutter won't overwrite another plugin's signs. It also won't remove another plugin's signs.
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> Why aren't any signs showing at all?
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Here are some things you can check:
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* Your git config is compatible with the version of git which your Vim is calling (`:echo system('git --version')`).
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* Your Vim supports signs (`:echo has('signs')` should give `1`).
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* Your file is being tracked by git and has unstaged changes.
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### Alternatives
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Related:
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* [textobj-gitgutter][togg] (lets you treat diff hunks as text objects)
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* [vim-gitgutter][mercurial] - Mercurial fork
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Vim alternatives:
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* [git-gutter-vim][ggv]
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* [vim-git-inline-diff][vgid]
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* [quickfixsigns_vim][qf] (a superset of this functionality)
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* [iwilldiffer][iwd]
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* [svndiff][svndiff]
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* [sign-diff][signdiff]
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* [changesPlugin][changes]
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Other editors:
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* [Git Gutter][st2gg] for Sublime Text 2
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* [git-gutter.el][gge] for Emacs
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Also, this may be of interest:
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* [fugitive.vim][fugitive] is a full-on Git wrapper. It doesn't show git diffs in the gutter (ha!) but it does a bazillion other git things.
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### Shameless Plug
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If this plugin has helped you, or you'd like to learn more about Vim, why not check out these two screencasts I wrote for PeepCode:
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* [Smash Into Vim I][siv1]
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* [Smash Into Vim II][siv2]
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You can read reviews at PeepCode and also on my [portfolio][].
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### Intellectual Property
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Copyright Andrew Stewart, AirBlade Software Ltd. Released under the MIT licence.
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[st2gg]: https://github.com/jisaacks/GitGutter
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[pathogen]: https://github.com/tpope/vim-pathogen
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[qf]: https://github.com/tomtom/quickfixsigns_vim
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[fugitive]: https://github.com/tpope/vim-fugitive
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[siv1]: https://peepcode.com/products/smash-into-vim-i
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[siv2]: https://peepcode.com/products/smash-into-vim-ii
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[portfolio]: http://airbladesoftware.com/portfolio#vim
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[vgid]: https://github.com/luxflux/vim-git-inline-diff
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[gge]: https://github.com/syohex/emacs-git-gutter
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[iwd]: https://bitbucket.org/sirpengi/iwilldiffer
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[svndiff]: http://www.vim.org/scripts/script.php?script_id=1881
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[signdiff]: http://www.vim.org/scripts/script.php?script_id=2712
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[changes]: http://www.vim.org/scripts/script.php?script_id=3052
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[ggv]: https://github.com/akiomik/git-gutter-vim
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[togg]:https://github.com/gilligan/textobj-gitgutter
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[mercurial]: https://github.com/safetydank/vim-gitgutter
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[macvim]: http://code.google.com/p/macvim/
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