282 lines
7.5 KiB
VimL
282 lines
7.5 KiB
VimL
function! gitgutter#hunk#set_hunks(bufnr, hunks) abort
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call gitgutter#utility#setbufvar(a:bufnr, 'hunks', a:hunks)
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call s:reset_summary(a:bufnr)
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endfunction
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function! gitgutter#hunk#hunks(bufnr) abort
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return gitgutter#utility#getbufvar(a:bufnr, 'hunks', [])
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endfunction
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function! gitgutter#hunk#reset(bufnr) abort
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call gitgutter#utility#setbufvar(a:bufnr, 'hunks', [])
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call s:reset_summary(a:bufnr)
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endfunction
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function! gitgutter#hunk#summary(bufnr) abort
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return gitgutter#utility#getbufvar(a:bufnr, 'summary', [0,0,0])
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endfunction
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function! s:reset_summary(bufnr) abort
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call gitgutter#utility#setbufvar(a:bufnr, 'summary', [0,0,0])
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endfunction
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function! gitgutter#hunk#increment_lines_added(bufnr, count) abort
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let summary = gitgutter#hunk#summary(a:bufnr)
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let summary[0] += a:count
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call gitgutter#utility#setbufvar(a:bufnr, 'summary', summary)
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endfunction
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function! gitgutter#hunk#increment_lines_modified(bufnr, count) abort
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let summary = gitgutter#hunk#summary(a:bufnr)
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let summary[1] += a:count
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call gitgutter#utility#setbufvar(a:bufnr, 'summary', summary)
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endfunction
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function! gitgutter#hunk#increment_lines_removed(bufnr, count) abort
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let summary = gitgutter#hunk#summary(a:bufnr)
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let summary[2] += a:count
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call gitgutter#utility#setbufvar(a:bufnr, 'summary', summary)
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endfunction
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function! gitgutter#hunk#next_hunk(count) abort
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let bufnr = bufnr('')
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if gitgutter#utility#is_active(bufnr)
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let current_line = line('.')
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let hunk_count = 0
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for hunk in gitgutter#hunk#hunks(bufnr)
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if hunk[2] > current_line
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let hunk_count += 1
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if hunk_count == a:count
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execute 'normal!' hunk[2] . 'Gzv'
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return
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endif
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endif
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endfor
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call gitgutter#utility#warn('No more hunks')
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endif
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endfunction
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function! gitgutter#hunk#prev_hunk(count) abort
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let bufnr = bufnr('')
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if gitgutter#utility#is_active(bufnr)
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let current_line = line('.')
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let hunk_count = 0
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for hunk in reverse(copy(gitgutter#hunk#hunks(bufnr)))
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if hunk[2] < current_line
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let hunk_count += 1
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if hunk_count == a:count
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let target = hunk[2] == 0 ? 1 : hunk[2]
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execute 'normal!' target . 'Gzv'
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return
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endif
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endif
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endfor
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call gitgutter#utility#warn('No previous hunks')
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endif
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endfunction
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" Returns the hunk the cursor is currently in or an empty list if the cursor
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" isn't in a hunk.
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function! s:current_hunk() abort
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let bufnr = bufnr('')
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let current_hunk = []
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for hunk in gitgutter#hunk#hunks(bufnr)
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if gitgutter#hunk#cursor_in_hunk(hunk)
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let current_hunk = hunk
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break
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endif
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endfor
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return current_hunk
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endfunction
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function! gitgutter#hunk#cursor_in_hunk(hunk) abort
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let current_line = line('.')
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if current_line == 1 && a:hunk[2] == 0
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return 1
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endif
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if current_line >= a:hunk[2] && current_line < a:hunk[2] + (a:hunk[3] == 0 ? 1 : a:hunk[3])
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return 1
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endif
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return 0
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endfunction
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function! gitgutter#hunk#text_object(inner) abort
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let hunk = s:current_hunk()
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if empty(hunk)
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return
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endif
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let [first_line, last_line] = [hunk[2], hunk[2] + hunk[3] - 1]
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if ! a:inner
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let lnum = last_line
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let eof = line('$')
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while lnum < eof && empty(getline(lnum + 1))
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let lnum +=1
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endwhile
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let last_line = lnum
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endif
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execute 'normal! 'first_line.'GV'.last_line.'G'
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endfunction
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function! gitgutter#hunk#stage() abort
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call s:hunk_op(function('s:stage'))
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silent! call repeat#set("\<Plug>GitGutterStageHunk", -1)<CR>
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endfunction
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function! gitgutter#hunk#undo() abort
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call s:hunk_op(function('s:undo'))
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silent! call repeat#set("\<Plug>GitGutterUndoHunk", -1)<CR>
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endfunction
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function! gitgutter#hunk#preview() abort
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call s:hunk_op(function('s:preview'))
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silent! call repeat#set("\<Plug>GitGutterPreviewHunk", -1)<CR>
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endfunction
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function! s:hunk_op(op)
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let bufnr = bufnr('')
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if gitgutter#utility#is_active(bufnr)
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" Get a (synchronous) diff.
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let [async, g:gitgutter_async] = [g:gitgutter_async, 0]
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let diff = gitgutter#diff#run_diff(bufnr, 1)
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let g:gitgutter_async = async
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call gitgutter#hunk#set_hunks(bufnr, gitgutter#diff#parse_diff(diff))
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if empty(s:current_hunk())
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call gitgutter#utility#warn('cursor is not in a hunk')
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else
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call a:op(gitgutter#diff#hunk_diff(bufnr, diff))
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endif
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endif
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endfunction
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function! s:stage(hunk_diff)
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let bufnr = bufnr('')
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let diff = s:adjust_header(bufnr, a:hunk_diff)
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" Apply patch to index.
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call gitgutter#utility#system(
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\ gitgutter#utility#cd_cmd(bufnr, g:gitgutter_git_executable.' apply --cached --unidiff-zero - '),
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\ diff)
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" Refresh gitgutter's view of buffer.
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call gitgutter#process_buffer(bufnr, 1)
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endfunction
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function! s:undo(hunk_diff)
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" Apply reverse patch to buffer.
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let hunk = gitgutter#diff#parse_hunk(split(a:hunk_diff, '\n')[4])
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let lines = map(split(a:hunk_diff, '\n')[5:], 'v:val[1:]')
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let lnum = hunk[2]
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let added_only = hunk[1] == 0 && hunk[3] > 0
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let removed_only = hunk[1] > 0 && hunk[3] == 0
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if removed_only
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call append(lnum, lines)
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elseif added_only
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execute lnum .','. (lnum+len(lines)-1) .'d'
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else
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call append(lnum-1, lines[0:hunk[1]])
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execute (lnum+hunk[1]) .','. (lnum+hunk[1]+hunk[3]) .'d'
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endif
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endfunction
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function! s:preview(hunk_diff)
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let hunk_lines = split(s:discard_header(a:hunk_diff), "\n")
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let hunk_lines_length = len(hunk_lines)
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let previewheight = min([hunk_lines_length, &previewheight])
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silent! wincmd P
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if !&previewwindow
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noautocmd execute 'bo' previewheight 'new'
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set previewwindow
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else
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execute 'resize' previewheight
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endif
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setlocal noreadonly modifiable filetype=diff buftype=nofile bufhidden=delete noswapfile
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execute "%delete_"
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call append(0, hunk_lines)
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normal! gg
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setlocal readonly nomodifiable
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noautocmd wincmd p
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endfunction
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function! s:adjust_header(bufnr, hunk_diff)
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let filepath = gitgutter#utility#repo_path(a:bufnr, 0)
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return s:adjust_hunk_summary(s:fix_file_references(filepath, a:hunk_diff))
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endfunction
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" Replaces references to temp files with the actual file.
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function! s:fix_file_references(filepath, hunk_diff)
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let lines = split(a:hunk_diff, '\n')
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let left_prefix = matchstr(lines[2], '[abciow12]').'/'
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let right_prefix = matchstr(lines[3], '[abciow12]').'/'
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let quote = lines[0][11] == '"' ? '"' : ''
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let left_file = quote.left_prefix.a:filepath.quote
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let right_file = quote.right_prefix.a:filepath.quote
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let lines[0] = 'diff --git '.left_file.' '.right_file
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let lines[2] = '--- '.left_file
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let lines[3] = '+++ '.right_file
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return join(lines, "\n")."\n"
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endfunction
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if $VIM_GITGUTTER_TEST
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function! gitgutter#hunk#fix_file_references(filepath, hunk_diff)
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return s:fix_file_references(a:filepath, a:hunk_diff)
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endfunction
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endif
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function! s:adjust_hunk_summary(hunk_diff) abort
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let line_adjustment = s:line_adjustment_for_current_hunk()
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let diff = split(a:hunk_diff, '\n', 1)
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let diff[4] = substitute(diff[4], '+\@<=\(\d\+\)', '\=submatch(1)+line_adjustment', '')
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return join(diff, "\n")
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endfunction
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function! s:discard_header(hunk_diff)
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return join(split(a:hunk_diff, '\n', 1)[5:], "\n")
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endfunction
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" Returns the number of lines the current hunk is offset from where it would
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" be if any changes above it in the file didn't exist.
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function! s:line_adjustment_for_current_hunk() abort
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let bufnr = bufnr('')
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let adj = 0
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for hunk in gitgutter#hunk#hunks(bufnr)
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if gitgutter#hunk#cursor_in_hunk(hunk)
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break
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else
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let adj += hunk[1] - hunk[3]
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endif
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endfor
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return adj
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endfunction
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