474 lines
16 KiB
VimL
474 lines
16 KiB
VimL
" Copyright (c) 2013 Marco Hinz
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" All rights reserved.
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"
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" Redistribution and use in source and binary forms, with or without
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" modification, are permitted provided that the following conditions are met:
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"
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" - Redistributions of source code must retain the above copyright notice, this
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" list of conditions and the following disclaimer.
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" - Redistributions in binary form must reproduce the above copyright notice,
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" this list of conditions and the following disclaimer in the documentation
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" and/or other materials provided with the distribution.
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" - Neither the name of the author nor the names of its contributors may be
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" used to endorse or promote products derived from this software without
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" specific prior written permission.
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"
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" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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" ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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" POSSIBILITY OF SUCH DAMAGE.
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if exists('g:loaded_signify') || !has('signs') || &cp
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finish
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endif
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let g:loaded_signify = 1
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" Default values {{{1
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let s:line_highlight = 0 " disable line highlighting
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let s:colors_set = 0 " do colors have to be reset?
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let s:last_jump_was_next = -1 " last movement was next or prev?
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let s:other_signs_line_numbers = {} " holds IDs of other signs
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let s:sy = {} " the main data structure
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" overwrite non-signify signs by default
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let s:sign_overwrite = exists('g:signify_sign_overwrite') ? g:signify_sign_overwrite : 1
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let s:id_start = 0x100
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let s:id_top = s:id_start
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" Default mappings {{{1
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if exists('g:signify_mapping_next_hunk')
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exe 'nnoremap '. g:signify_mapping_next_hunk .' :SignifyJumpToNextHunk<cr>'
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else
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nnoremap <leader>gn :SignifyJumpToNextHunk<cr>
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endif
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if exists('g:signify_mapping_prev_hunk')
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exe 'nnoremap '. g:signify_mapping_prev_hunk .' :SignifyJumpToPrevHunk<cr>'
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else
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nnoremap <leader>gp :SignifyJumpToPrevHunk<cr>
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endif
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if exists('g:signify_mapping_toggle_highlight')
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exe 'nnoremap '. g:signify_mapping_toggle_highlight .' :SignifyToggleHighlight<cr>'
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else
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nnoremap <leader>gh :SignifyToggleHighlight<cr>
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endif
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if exists('g:signify_mapping_toggle')
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exe 'nnoremap '. g:signify_mapping_toggle .' :SignifyToggle<cr>'
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else
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nnoremap <leader>gt :SignifyToggle<cr>
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endif
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" Default signs {{{1
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if exists('g:signify_sign_add')
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exe 'sign define SignifyAdd text='. g:signify_sign_add .' texthl=SignifyAdd linehl=none'
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else
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sign define SignifyAdd text=+ texthl=SignifyAdd linehl=none
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endif
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if exists('g:signify_sign_delete')
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exe 'sign define SignifyDelete text='. g:signify_sign_delete .' texthl=SignifyDelete linehl=none'
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else
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sign define SignifyDelete text=_ texthl=SignifyDelete linehl=none
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endif
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if exists('g:signify_sign_change')
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exe 'sign define SignifyChange text='. g:signify_sign_change .' texthl=SignifyChange linehl=none'
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else
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sign define SignifyChange text=! texthl=SignifyChange linehl=none
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endif
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" Initial stuff {{{1
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aug signify
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au!
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au ColorScheme * call s:colors_set()
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au BufWritePost,FocusGained * call s:start(resolve(expand('<afile>:p')))
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au BufEnter * let s:colors_set = 0 | call s:start(resolve(expand('<afile>:p')))
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aug END
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com! -nargs=0 -bar SignifyToggle call s:toggle_signify()
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com! -nargs=0 -bar SignifyToggleHighlight call s:toggle_line_highlighting()
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com! -nargs=0 -bar SignifyJumpToNextHunk call s:jump_to_next_hunk()
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com! -nargs=0 -bar SignifyJumpToPrevHunk call s:jump_to_prev_hunk()
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" Internal functions {{{1
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" Functions -> s:start() {{{2
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function! s:start(path) abort
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if empty(a:path) || &ft == 'help'
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return
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endif
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" Check for exceptions.
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if exists('g:signify_exceptions_filetype')
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for i in g:signify_exceptions_filetype
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if i == &ft
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return
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endif
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endfor
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endif
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if exists('g:signify_exceptions_filename')
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for i in g:signify_exceptions_filename
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if i == a:path
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return
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endif
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endfor
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endif
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" Is a diff available?
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let diff = s:diff_get(a:path)
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if empty(diff)
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if has_key(s:sy, a:path)
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call s:sign_remove_all(a:path)
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endif
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return
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endif
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" New buffer.. add to list.
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if !has_key(s:sy, a:path)
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let s:sy[a:path] = { 'active': 1, 'ids': [], 'id_jump': s:id_top, 'id_top': s:id_top, 'last_jump_was_next': -1 }
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" Inactive buffer.. bail out.
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elseif s:sy[a:path].active == 0
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return
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" Update active buffer.. reset default values
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else
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call s:sign_remove_all(a:path)
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let s:sy[a:path].id_top = s:id_top
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let s:sy[a:path].id_jump = s:id_top
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let s:sy[a:path].last_jump_was_next = -1
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endif
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if s:sign_overwrite == 0
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call s:sign_get_others(a:path)
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endif
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" Set colors only for the first time or when a new colorscheme is set.
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if !s:colors_set
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call s:colors_set()
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let s:colors_set = 1
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endif
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" Use git's diff cmd to set our signs.
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call s:process_diff(a:path, diff)
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let s:sy[a:path].id_top = (s:id_top - 1)
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endfunction
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" Functions -> s:stop() {{{2
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function! s:stop(path) abort
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if !has_key(s:sy, a:path)
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return
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endif
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call s:sign_remove_all(a:path)
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if (s:sy[a:path].active == 0)
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return
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else
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call remove(s:sy, a:path)
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endif
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aug signify
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au! * <buffer>
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aug END
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endfunction
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" Functions -> s:sign_get_others() {{{2
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function! s:sign_get_others(path) abort
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redir => signlist
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sil! exe 'sign place file='. a:path
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redir END
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for line in split(signlist, '\n')
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if line =~ '^\s\+line'
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let [ lnum, id ] = matchlist(line, '\vline\=(\d+)\s+id\=(\d+)')[1:2]
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let s:other_signs_line_numbers[lnum] = id
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endif
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endfor
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endfunction
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" Functions -> s:sign_set() {{{2
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function! s:sign_set(lnum, type, path)
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" Preserve non-signify signs
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if get(s:other_signs_line_numbers, a:lnum) == 1
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return
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endif
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call add(s:sy[a:path].ids, s:id_top)
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exe 'sign place '. s:id_top .' line='. a:lnum .' name='. a:type .' file='. a:path
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let s:id_top += 1
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endfunction
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" Functions -> s:sign_remove_all() {{{2
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function! s:sign_remove_all(path) abort
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for id in s:sy[a:path].ids
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exe 'sign unplace '. id
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endfor
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let s:other_signs_line_numbers = {}
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let s:sy[a:path].ids = []
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endfunction
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" Functions -> s:diff_get() {{{2
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function! s:diff_get(path) abort
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if !executable('grep')
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echoerr 'signify: I cannot work without grep!'
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return
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endif
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if executable('git')
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let orig_dir = getcwd()
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let wt = fnamemodify(a:path, ':h')
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exe 'cd '. wt
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let gd = system('git rev-parse --git-dir')[:-2] " remove newline
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if v:shell_error
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echom 'signify: I cannot find the .git dir!'
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return []
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endif
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let diff = system('git --work-tree '. wt .' --git-dir '. gd .' diff --no-ext-diff -U0 -- '. a:path .' | grep "^@@ "')
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if !v:shell_error
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exe 'cd '. orig_dir
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return diff
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endif
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exe 'cd '. orig_dir
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endif
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if executable('hg')
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let diff = system('hg diff --nodates -U0 '. a:path .' | grep "^@@ "')
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if !v:shell_error
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return diff
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endif
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endif
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if executable('diff')
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if executable('svn')
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let diff = system('svn diff --diff-cmd diff -x -U0 '. a:path .' | grep "^@@ "')
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if !v:shell_error
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return diff
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endif
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endif
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if executable('bzr')
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let diff = system('bzr diff --using diff --diff-options=-U0 '. a:path .' | grep "^@@ "')
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if !v:shell_error
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return diff
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endif
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endif
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endif
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if executable('cvs')
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let diff = system('cvs diff -U0 '. a:path .' 2>&1 | grep "^@@ "')
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if !empty(diff)
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return diff
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endif
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endif
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return []
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endfunction
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" Functions -> s:process_diff() {{{2
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function! s:process_diff(path, diff) abort
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" Determine where we have to put our signs.
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for line in split(a:diff, '\n')
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" Parse diff output.
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let tokens = matchlist(line, '\v^\@\@ -(\d+),?(\d*) \+(\d+),?(\d*)')
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if empty(tokens)
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echoerr 'signify: I cannot parse this line "'. line .'"'
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endif
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let [ old_line, old_count, new_line, new_count ] = [ str2nr(tokens[1]), (tokens[2] == '') ? 1 : str2nr(tokens[2]), str2nr(tokens[3]), (tokens[4] == '') ? 1 : str2nr(tokens[4]) ]
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" A new line was added.
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if (old_count == 0) && (new_count >= 1)
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let offset = 0
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while offset < new_count
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call s:sign_set(new_line + offset, 'SignifyAdd', a:path)
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let offset += 1
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endwhile
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" An old line was removed.
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elseif (old_count >= 1) && (new_count == 0)
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call s:sign_set(new_line, 'SignifyDelete', a:path)
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" A line was changed.
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elseif (old_count == new_count)
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let offset = 0
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while offset < new_count
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call s:sign_set(new_line + offset, 'SignifyChange', a:path)
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let offset += 1
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endwhile
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else
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" Lines were changed && deleted.
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if (old_count > new_count)
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let offset = 0
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while offset < new_count
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call s:sign_set(new_line + offset, 'SignifyChange', a:path)
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let offset += 1
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endwhile
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call s:sign_set(new_line + offset - 1, 'SignifyDelete', a:path)
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" (old_count < new_count): Lines were added && changed.
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else
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let offset = 0
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while offset < old_count
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call s:sign_set(new_line + offset, 'SignifyChange', a:path)
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let offset += 1
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endwhile
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while offset < new_count
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call s:sign_set(new_line + offset, 'SignifyAdd', a:path)
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let offset += 1
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endwhile
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endif
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endif
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endfor
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endfunction
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" Functions -> s:colors_set() {{{2
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func! s:colors_set() abort
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if has('gui_running')
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let guifg_add = exists('g:signify_color_sign_guifg_add') ? g:signify_color_sign_guifg_add : '#11ee11'
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let guifg_delete = exists('g:signify_color_sign_guifg_delete') ? g:signify_color_sign_guifg_delete : '#ee1111'
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let guifg_change = exists('g:signify_color_sign_guifg_change') ? g:signify_color_sign_guifg_change : '#eeee11'
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if exists('g:signify_color_sign_guibg')
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let guibg = g:signify_color_sign_guibg
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endif
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if !exists('guibg')
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let guibg = synIDattr(hlID('LineNr'), 'bg', 'gui')
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endif
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if empty(guibg) || guibg < 0
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exe 'hi SignifyAdd gui=bold guifg='. guifg_add
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exe 'hi SignifyDelete gui=bold guifg='. guifg_delete
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exe 'hi SignifyChange gui=bold guifg='. guifg_change
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else
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exe 'hi SignifyAdd gui=bold guifg='. guifg_add .' guibg='. guibg
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exe 'hi SignifyDelete gui=bold guifg='. guifg_delete .' guibg='. guibg
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exe 'hi SignifyChange gui=bold guifg='. guifg_change .' guibg='. guibg
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endif
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else
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let ctermfg_add = exists('g:signify_color_sign_ctermfg_add') ? g:signify_color_sign_ctermfg_add : 2
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let ctermfg_delete = exists('g:signify_color_sign_ctermfg_delete') ? g:signify_color_sign_ctermfg_delete : 1
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let ctermfg_change = exists('g:signify_color_sign_ctermfg_change') ? g:signify_color_sign_ctermfg_change : 3
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if exists('g:signify_color_sign_ctermbg')
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let ctermbg = g:signify_color_sign_ctermbg
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endif
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if !exists('ctermbg')
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let ctermbg = synIDattr(hlID('LineNr'), 'bg', 'cterm')
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endif
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if empty(ctermbg) || ctermbg < 0
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exe 'hi SignifyAdd cterm=bold ctermfg='. ctermfg_add
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exe 'hi SignifyDelete cterm=bold ctermfg='. ctermfg_delete
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exe 'hi SignifyChange cterm=bold ctermfg='. ctermfg_change
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else
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exe 'hi SignifyAdd cterm=bold ctermfg='. ctermfg_add .' ctermbg='. ctermbg
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exe 'hi SignifyDelete cterm=bold ctermfg='. ctermfg_delete .' ctermbg='. ctermbg
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exe 'hi SignifyChange cterm=bold ctermfg='. ctermfg_change .' ctermbg='. ctermbg
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endif
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endif
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endfunc
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" Functions -> s:toggle_signify() {{{2
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function! s:toggle_signify() abort
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let path = resolve(expand('%:p'))
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if empty(path)
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echoerr "signify: I don't sy empty buffers!"
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return
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endif
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if has_key(s:sy, path)
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if (s:sy[path].active == 1)
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let s:sy[path].active = 0
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call s:stop(path)
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else
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let s:sy[path].active = 1
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call s:start(path)
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endif
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endif
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endfunction
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" Functions -> s:toggle_line_highlighting() {{{2
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function! s:toggle_line_highlighting() abort
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if s:line_highlight
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sign define SignifyAdd text=+ texthl=SignifyAdd linehl=none
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sign define SignifyDelete text=_ texthl=SignifyDelete linehl=none
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sign define SignifyChange text=! texthl=SignifyChange linehl=none
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let s:line_highlight = 0
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else
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let add = exists('g:signify_color_line_highlight_add') ? g:signify_color_line_highlight_add : 'DiffAdd'
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let delete = exists('g:signify_color_line_highlight_delete') ? g:signify_color_line_highlight_delete : 'DiffDelete'
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let change = exists('g:signify_color_line_highlight_change') ? g:signify_color_line_highlight_change : 'DiffChange'
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exe 'sign define SignifyAdd text=+ texthl=SignifyAdd linehl='. add
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exe 'sign define SignifyDelete text=_ texthl=SignifyDelete linehl='. delete
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exe 'sign define SignifyChange text=! texthl=SignifyChange linehl='. change
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let s:line_highlight = 1
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endif
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call s:start(resolve(expand('%:p')))
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endfunction
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" Functions -> s:jump_to_next_hunk() {{{2
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function! s:jump_to_next_hunk()
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let path = resolve(expand('%:p'))
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if s:sy[path].last_jump_was_next == 0
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let s:sy[path].id_jump += 2
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endif
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if s:sy[path].id_jump > s:sy[path].id_top
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let s:sy[path].id_jump = s:sy[path].ids[0]
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endif
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exe 'sign jump '. s:sy[path].id_jump .' file='. path
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let s:sy[path].id_jump += 1
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let s:sy[path].last_jump_was_next = 1
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endfunction
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" Functions -> s:jump_to_prev_hunk() {{{2
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function! s:jump_to_prev_hunk()
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let path = resolve(expand('%:p'))
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if s:sy[path].last_jump_was_next == 1
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let s:sy[path].id_jump -= 2
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endif
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if s:sy[path].id_jump < s:sy[path].ids[0]
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let s:sy[path].id_jump = s:sy[path].id_top
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endif
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exe 'sign jump '. s:sy[path].id_jump .' file='. path
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let s:sy[path].id_jump -= 1
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let s:sy[path].last_jump_was_next = 0
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endfunction
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" Functions -> SignifyDebugListActiveBuffers() {{{2
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function! SignifyDebugListActiveBuffers() abort
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if len(s:sy) == 0
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echo 'No active buffers!'
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return
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endif
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for i in items(s:sy)
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echo i
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endfor
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endfunction
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" Functions -> SignifyDebugID() {{{2
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function! SignifyDebugID() abort
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echo [ s:id_start, s:id_top ]
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endfunction
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