721 lines
24 KiB
Plaintext
721 lines
24 KiB
Plaintext
*gitgutter.txt* A Vim plugin which shows a git diff in the gutter.
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Vim GitGutter
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Author: Andy Stewart <https://airbladesoftware.com/>
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Plugin Homepage: <https://github.com/airblade/vim-gitgutter>
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===============================================================================
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CONTENTS *gitgutter*
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Introduction ................. |gitgutter-introduction|
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Installation ................. |gitgutter-installation|
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Windows ................. |gitgutter-windows|
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Commands ..................... |gitgutter-commands|
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Mappings ..................... |gitgutter-mappings|
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Autocommand .................. |gitgutter-autocommand|
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Status line .................. |gitgutter-statusline|
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Options ...................... |gitgutter-options|
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Highlights ................... |gitgutter-highlights|
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FAQ .......................... |gitgutter-faq|
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TROUBLESHOOTING .............. |gitgutter-troubleshooting|
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===============================================================================
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INTRODUCTION *gitgutter-introduction*
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GitGutter is a Vim plugin which shows a git diff in the sign column.
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It shows which lines have been added, modified, or removed. You can also
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preview, stage, and undo individual hunks. The plugin also provides a hunk
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text object.
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The signs are always up to date and the plugin never saves your buffer.
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The name "gitgutter" comes from the Sublime Text 3 plugin which inspired this
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one in 2013.
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===============================================================================
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INSTALLATION *gitgutter-installation*
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Use your favourite package manager, or use Vim's built-in package support.
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Vim:~
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>
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mkdir -p ~/.vim/pack/airblade/start
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cd ~/.vim/pack/airblade/start
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git clone https://github.com/airblade/vim-gitgutter.git
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vim -u NONE -c "helptags vim-gitgutter/doc" -c q
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<
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Neovim:~
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>
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mkdir -p ~/.config/nvim/pack/airblade/start
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cd ~/.config/nvim/pack/airblade/start
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git clone https://github.com/airblade/vim-gitgutter.git
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nvim -u NONE -c "helptags vim-gitgutter/doc" -c q
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<
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===============================================================================
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WINDOWS *gitgutter-windows*
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There is a potential risk on Windows due to `cmd.exe` prioritising the current
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folder over folders in `PATH`. If you have a file named `git.*` (i.e. with
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any extension in `PATHEXT`) in your current folder, it will be executed
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instead of git whenever the plugin calls git.
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You can avoid this risk by configuring the full path to your git executable.
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For example:
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>
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" This path probably won't work
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let g:gitgutter_git_executable = 'C:\Program Files\Git\bin\git.exe'
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<
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Unfortunately I don't know the correct escaping for the path - if you do,
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please let me know!
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===============================================================================
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COMMANDS *gitgutter-commands*
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Commands for turning vim-gitgutter on and off:~
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*gitgutter-:GitGutterDisable*
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:GitGutterDisable Turn vim-gitgutter off for all buffers.
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*gitgutter-:GitGutterEnable*
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:GitGutterEnable Turn vim-gitgutter on for all buffers.
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*gitgutter-:GitGutterToggle*
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:GitGutterToggle Toggle vim-gitgutter on or off for all buffers.
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*gitgutter-:GitGutter*
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:GitGutter Update signs for the current buffer. You shouldn't
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need to run this.
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*gitgutter-:GitGutterAll*
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:GitGutterAll Update signs for all buffers. You shouldn't need to
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run this.
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Commands for turning signs on and off (defaults to on):~
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*gitgutter-:GitGutterSignsEnable*
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:GitGutterSignsEnable Show signs for the diff.
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*gitgutter-:GitGutterSignsDisable*
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:GitGutterSignsDisable Do not show signs for the diff.
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*gitgutter-:GitGutterSignsToggle*
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:GitGutterSignsToggle Toggle signs on or off.
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Commands for turning line highlighting on and off (defaults to off):~
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*gitgutter-:GitGutterLineHighlightsEnable*
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:GitGutterLineHighlightsEnable Turn on line highlighting.
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*gitgutter-:GitGutterLineHighlightsDisable*
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:GitGutterLineHighlightsDisable Turn off line highlighting.
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*gitgutter-:GitGutterLineHighlightsToggle*
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:GitGutterLineHighlightsToggle Turn line highlighting on or off.
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Commands for turning line number highlighting on and off (defaults to off):~
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NOTE: This feature requires Neovim 0.3.2 or higher.
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*gitgutter-:GitGutterLineNrHighlightsEnable*
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:GitGutterLineNrHighlightsEnable Turn on line highlighting.
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*gitgutter-:GitGutterLineNrHighlightsDisable*
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:GitGutterLineNrHighlightsDisable Turn off line highlighting.
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*gitgutter-:GitGutterLineNrHighlightsToggle*
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:GitGutterLineNrHighlightsToggle Turn line highlighting on or off.
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Commands for jumping between hunks:~
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*gitgutter-:GitGutterNextHunk*
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:GitGutterNextHunk Jump to the next [count] hunk.
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*gitgutter-:GitGutterPrevHunk*
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:GitGutterPrevHunk Jump to the previous [count] hunk.
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*gitgutter-:GitGutterQuickFix*
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:GitGutterQuickFix Load all hunks into the |quickfix| list. Note this
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ignores any unsaved changes in your buffers. The
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|g:gitgutter_use_location_list| option can be set to
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populate the location list of the current window
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instead. Use |:copen| (or |:lopen|) to open a buffer
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containing the search results in linked form; or add a
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custom command like this:
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>
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command! Gqf GitGutterQuickFix | copen
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<
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Commands for operating on a hunk:~
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*gitgutter-:GitGutterStageHunk*
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:GitGutterStageHunk Stage the hunk the cursor is in. Use a visual selection
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to stage part of an (additions-only) hunk; or use a
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range.
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To stage part of any hunk, first |GitGutterPreviewHunk|
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it, then move to the preview window, delete the lines
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you do not want to stage, and |write| or
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|GitGutterStageHunk|.
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*gitgutter-:GitGutterUndoHunk*
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:GitGutterUndoHunk Undo the hunk the cursor is in.
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*gitgutter-:GitGutterPreviewHunk*
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:GitGutterPreviewHunk Preview the hunk the cursor is in.
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To stage part of the hunk, move to the preview window,
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delete any lines you do not want to stage, and
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|GitGutterStageHunk|.
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To close a non-floating preview window use |:pclose|
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or |CTRL-W_z| or |CTRL-W_CTRL-Z|; or normal window-
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closing (|:quit| or |:close| or |CTRL-W_c|) if your cursor
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is in the preview window.
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To close a floating window when the cursor is in the
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original buffer, move the cursor.
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To close a floating window when the cursor is in the
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floating window use normal window-closing, or move to
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the original window with |CTRL-W_p|. Alternatively set
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|g:gitgutter_close_preview_on_escape| and use <Esc>.
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Two functions are available for your own logic:
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>
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gitgutter#hunk#is_preview_window_open()
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gitgutter#hunk#close_hunk_preview_window()
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<
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Commands for folds:~
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*gitgutter-:GitGutterFold*
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:GitGutterFold Fold all unchanged lines. Execute again to undo.
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===============================================================================
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AUTOCOMMANDS *gitgutter-autocommands*
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User GitGutter~
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After updating a buffer's signs vim-gitgutter fires a |User| |autocmd| with the
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event GitGutter. You can listen for this event, for example:
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>
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autocmd User GitGutter call updateMyStatusLine()
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<
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A dictionary `g:gitgutter_hook_context` is made available during its execution,
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which contains an entry `bufnr` that contains the buffer number being updated.
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User GitGutterStage~
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After staging a hunk or part of a hunk vim-gitgutter fires a |User| |autocmd|
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with the event GitGutterStage. Staging always happens in the current buffer.
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===============================================================================
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MAPPINGS *gitgutter-mappings*
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You can disable all these mappings with:
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>
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let g:gitgutter_map_keys = 0
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<
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Hunk operations:~
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These can be repeated with `.` if you have vim-repeat installed.
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*gitgutter-<Leader>hp*
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<Leader>hp Preview the hunk under the cursor.
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*gitgutter-<Leader>hs*
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<Leader>hs Stage the hunk under the cursor.
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*gitgutter-<Leader>hu*
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<Leader>hu Undo the hunk under the cursor.
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You can change these mappings like this:
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>
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nmap ghp <Plug>(GitGutterPreviewHunk)
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nmap ghs <Plug>(GitGutterStageHunk)
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nmap ghu <Plug>(GitGutterUndoHunk)
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<
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Hunk jumping:~
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*gitgutter-]c*
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]c Jump to the next [count] hunk.
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*gitgutter-[c*
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[c Jump to the previous [count] hunk.
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You can change these mappings like this:
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nmap [c <Plug>(GitGutterPrevHunk)
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nmap ]c <Plug>(GitGutterNextHunk)
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<
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Hunk text object:~
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*gitgutter-ic* *gitgutter-ac* *gitgutter-text-object*
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"ic" operates on the current hunk's lines. "ac" does the same but also includes
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trailing empty lines.
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>
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omap ic <Plug>(GitGutterTextObjectInnerPending)
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omap ac <Plug>(GitGutterTextObjectOuterPending)
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xmap ic <Plug>(GitGutterTextObjectInnerVisual)
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xmap ac <Plug>(GitGutterTextObjectOuterVisual)
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<
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===============================================================================
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STATUS LINE *gitgutter-statusline*
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Call the `GitGutterGetHunkSummary()` function from your status line to get a
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list of counts of added, modified, and removed lines in the current buffer.
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For example:
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>
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" Your vimrc
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function! GitStatus()
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let [a,m,r] = GitGutterGetHunkSummary()
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return printf('+%d ~%d -%d', a, m, r)
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endfunction
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set statusline+=%{GitStatus()}
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<
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===============================================================================
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OPTIONS *gitgutter-options*
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The most important option is 'updatetime' which determines how long (in
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milliseconds) the plugin will wait after you stop typing before it updates the
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signs. Vim's default is 4000. I recommend 100. Note this also controls how
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long vim waits before writing its swap file.
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Most important option:~
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'updatetime'
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Git:~
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|g:gitgutter_git_executable|
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|g:gitgutter_git_args|
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|g:gitgutter_diff_args|
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|g:gitgutter_diff_relative_to|
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|g:gitgutter_diff_base|
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Grep:~
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|g:gitgutter_grep|
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Signs:~
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|g:gitgutter_signs|
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|g:gitgutter_highlight_lines|
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|g:gitgutter_highlight_linenrs|
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|g:gitgutter_max_signs|
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|g:gitgutter_sign_priority|
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|g:gitgutter_sign_allow_clobber|
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|g:gitgutter_sign_added|
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|g:gitgutter_sign_modified|
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|g:gitgutter_sign_removed|
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|g:gitgutter_sign_removed_first_line|
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|g:gitgutter_sign_modified_removed|
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|g:gitgutter_set_sign_backgrounds|
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Hunk jumping:~
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|g:gitgutter_show_msg_on_hunk_jumping|
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Hunk previews:~
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|g:gitgutter_preview_win_floating|
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|g:gitgutter_close_preview_on_escape|
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Terminal:~
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|g:gitgutter_terminal_reports_focus|
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General:~
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|g:gitgutter_enabled|
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|g:gitgutter_map_keys|
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|g:gitgutter_async|
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|g:gitgutter_log|
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|g:gitgutter_use_location_list|
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*g:gitgutter_preview_win_location*
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Default: 'bo'
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This option determines where the preview window pops up as a result of the
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:GitGutterPreviewHunk command. Other plausible values are 'to', 'bel', 'abo'.
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See the end of the |opening-window| docs.
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*g:gitgutter_git_executable*
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Default: 'git'
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This option determines what git binary to use. Set this if git is not on your
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path.
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*g:gitgutter_git_args*
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Default: empty
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Use this option to pass any extra arguments to git when running git-diff.
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For example:
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>
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let g:gitgutter_git_args = '--git-dir=""'
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<
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*g:gitgutter_diff_args*
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Default: empty
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Use this option to pass any extra arguments to git-diff. For example:
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>
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let g:gitgutter_diff_args = '-w'
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<
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*g:gitgutter_diff_relative_to*
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Default: empty
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By default buffers are diffed against the index. Use this option to diff against
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the working tree. For example:
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>
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let g:gitgutter_diff_relative_to = 'working_tree'
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<
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*g:gitgutter_diff_base*
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Default: empty
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By default buffers are diffed against the index. Use this option to diff against
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a revision instead. For example:
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>
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let g:gitgutter_diff_base = '<some commit SHA>'
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<
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If you are looking at a previous version of a file with Fugitive (e.g.
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via :0Gclog), gitgutter sets the diff base to the parent of the current revision.
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This setting is ignore when the diff is relative to the working tree
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(|g:gitgutter_diff_relative_to|).
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*g:gitgutter_grep*
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Default: 'grep'
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The plugin pipes the output of git-diff into grep to minimise the amount of data
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vim has to process. Set this option if grep is not on your path.
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grep must produce plain-text output without any ANSI escape codes or colours.
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Use this option to turn off colours if necessary.
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>
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let g:gitgutter_grep = 'grep --color=never'
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<
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If you do not want to use grep at all (perhaps to debug why signs are not
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showing), set this option to an empty string:
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>
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let g:gitgutter_grep = ''
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<
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*g:gitgutter_signs*
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Default: 1
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Determines whether or not to show signs.
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*g:gitgutter_highlight_lines*
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Default: 0
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Determines whether or not to show line highlights.
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*g:gitgutter_highlight_linenrs*
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Default: 0
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Determines whether or not to show line number highlights.
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*g:gitgutter_max_signs*
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Default: 500 (Vim < 8.1.0614, Neovim < 0.4.0)
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-1 (otherwise)
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Sets the maximum number of signs to show in a buffer. Vim is slow at updating
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signs, so to avoid slowing down the GUI the number of signs is capped. When
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the number of changed lines exceeds this value, the plugin removes all signs
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and displays a warning message.
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When set to -1 the limit is not applied.
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*g:gitgutter_sign_priority*
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Default: 10
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Sets the |sign-priority| gitgutter assigns to its signs.
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*g:gitgutter_sign_allow_clobber*
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Default: 0 (Vim < 8.1.0614, Neovim < 0.4.0)
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1 (otherwise)
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Determines whether gitgutter preserves non-gitgutter signs. When 1, gitgutter
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will not preserve non-gitgutter signs.
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*g:gitgutter_sign_added*
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*g:gitgutter_sign_modified*
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*g:gitgutter_sign_removed*
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*g:gitgutter_sign_removed_first_line*
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*g:gitgutter_sign_removed_above_and_below*
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*g:gitgutter_sign_modified_removed*
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Defaults:
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>
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let g:gitgutter_sign_added = '+'
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let g:gitgutter_sign_modified = '~'
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let g:gitgutter_sign_removed = '_'
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let g:gitgutter_sign_removed_first_line = '‾'
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let g:gitgutter_sign_removed_above_and_below = '_¯'
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let g:gitgutter_sign_modified_removed = '~_'
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<
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You can use unicode characters but not images. Signs must not take up more than
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2 columns.
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*g:gitgutter_set_sign_backgrounds*
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Default: 0
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Only applies to existing GitGutter* highlight groups. See
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|gitgutter-highlights|.
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Controls whether to override the signs' background colours to match the
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|hl-SignColumn|.
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*g:gitgutter_preview_win_floating*
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Default: 0 (Vim)
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0 (NeoVim which does not support floating windows)
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1 (NeoVim which does support floating windows)
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Whether to use floating/popup windows for hunk previews. Note that if you use
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popup windows on Vim you will not be able to stage partial hunks via the
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preview window.
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*g:gitgutter_close_preview_on_escape*
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Default: 0
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Whether pressing <Esc> in a preview window closes it.
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*g:gitgutter_terminal_reports_focus*
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Default: 1
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Normally the plugin uses |FocusGained| to force-update all buffers when Vim
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receives focus. However some terminals do not report focus events and so the
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|FocusGained| autocommand never fires.
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If this applies to you, either install something like Terminus
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(https://github.com/wincent/terminus) to make |FocusGained| work or set this
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option to 0.
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If you use tmux, try this in your tmux.conf:
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>
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set -g focus-events on
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<
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When this option is 0, the plugin force-updates the buffer on |BufEnter|
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(instead of only updating if the buffer's contents has changed since the last
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update).
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*g:gitgutter_enabled*
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Default: 1
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Controls whether or not the plugin is on at startup.
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*g:gitgutter_map_keys*
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Default: 1
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Controls whether or not the plugin provides mappings. See |gitgutter-mappings|.
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*g:gitgutter_async*
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Default: 1
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Controls whether or not diffs are run in the background. This has no effect if
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your Vim does not support background jobs.
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*g:gitgutter_log*
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Default: 0
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When switched on, the plugin logs to gitgutter.log in the directory where it is
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installed. Additionally it logs channel activity to channel.log.
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*g:gitgutter_use_location_list*
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Default: 0
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When switched on, the :GitGutterQuickFix command populates the location list
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of the current window instead of the global quickfix list.
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*g:gitgutter_show_msg_on_hunk_jumping*
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Default: 1
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When switched on, a message like "Hunk 4 of 11" is shown on hunk jumping.
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===============================================================================
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HIGHLIGHTS *gitgutter-highlights*
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To change the signs' colours, specify these highlight groups in your |vimrc|:
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>
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highlight GitGutterAdd guifg=#009900 ctermfg=2
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highlight GitGutterChange guifg=#bbbb00 ctermfg=3
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highlight GitGutterDelete guifg=#ff2222 ctermfg=1
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<
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See |highlight-guifg| and |highlight-ctermfg| for the values you can use.
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If you do not like the signs' background colours and you do not want to update
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the GitGutter* highlight groups yourself, you can get the plugin to do it
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|g:gitgutter_set_sign_backgrounds|.
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To change the line highlights, set up the following highlight groups in your
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colorscheme or |vimrc|:
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>
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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
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<
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For example, to use |hl-DiffText| instead of |hl-DiffChange|:
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>
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highlight link GitGutterChangeLine DiffText
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<
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To change the line number highlights, set up the following highlight groups in
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your colorscheme or |vimrc|:
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>
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GitGutterAddLineNr " default: links to CursorLineNr
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GitGutterChangeLineNr " default: links to CursorLineNr
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GitGutterDeleteLineNr " default: links to CursorLineNr
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GitGutterChangeDeleteLineNr " default: links to CursorLineNr
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<
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For example, to use |hl-Underlined| instead of |hl-CursorLineNr|:
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>
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highlight link GitGutterChangeLineNr Underlined
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<
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===============================================================================
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FAQ *gitgutter-faq*
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a. How do I turn off realtime updates?
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Add this to your vim configuration in an |after-directory|:
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>
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autocmd! gitgutter CursorHold,CursorHoldI
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<
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b. I turned off realtime updates, how can I have signs updated when I save a
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file?
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If you really want to update the signs when you save a file, add this to your
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|vimrc|:
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>
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autocmd BufWritePost * GitGutter
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<
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c. Why can't I unstage staged changes?
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This plugin is for showing changes between the working tree and the index
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(and staging/undoing those changes). Unstaging a staged hunk would require
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showing changes between the index and HEAD, which is out of scope.
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d. Why are the colours in the sign column weird?
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Your colorscheme is configuring the |hl-SignColumn| highlight group weirdly.
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Here are two ways you could change the colours:
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>
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highlight! link SignColumn LineNr
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highlight SignColumn guibg=whatever ctermbg=whatever
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<
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e. 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. Vim-gitgutter will not interfere with
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signs it did not add.
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===============================================================================
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TROUBLESHOOTING *gitgutter-troubleshooting*
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When no signs are showing at all:~
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1. Try bypassing grep with:
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>
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let g:gitgutter_grep = ''
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<
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If it works, the problem is grep outputting ANSI escape codes. Use this
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option to pass arguments to grep to turn off the escape codes.
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2. Verify git is on your path:
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>
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:echo system('git --version')
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<
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3. Verify your git config is compatible with the version of git return by the
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command above.
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4. Verify your Vim supports signs. The following should give 1:
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>
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:echo has('signs')
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<
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5. Check whether the plugin thinks git knows about your file:
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>
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:echo getbufvar('','gitgutter').path
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<
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If the result is -2, the plugin thinks your file is not tracked by git.
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6. Check whether the signs have been placed:
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>
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:sign place group=gitgutter
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<
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If you see a list of signs, this is a colorscheme / highlight problem.
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Compare these two highlight values:
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>
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:highlight GitGutterAdd
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:highlight SignColumn
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<
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If no signs are listed, the call to git-diff is probably failing. Turn on
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logging by adding the following to your vimrc, restart, reproduce the problem,
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and examing the gitgutter.log file in the plugin's directory.
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>
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let g:gitgutter_log = 1
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<
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When the whole file is marked as added:~
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If you use zsh, and you set "CDPATH", make sure "CDPATH" does not include the
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current directory.
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When signs take a few seconds to appear:~
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Try reducing 'updatetime':
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>
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set updatetime=100
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<
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Note this also controls how long vim waits before writing its swap file.
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When signs don't update after focusing Vim:~
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Your terminal probably isn't reporting focus events. Either try installing
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Terminus (https://github.com/wincent/terminus) or set:
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>
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let g:gitgutter_terminal_reports_focus = 0
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<
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vim:tw=78:et:ft=help:norl:
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