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function! gitgutter#highlight#define_sign_column_highlight() abort
if g:gitgutter_override_sign_column_highlight
highlight! link SignColumn LineNr
else
highlight default link SignColumn LineNr
endif
endfunction
function! gitgutter#highlight#define_highlights() abort
let [guibg, ctermbg] = gitgutter#highlight#get_background_colors('SignColumn')
" Highlights used by the signs.
execute "highlight GitGutterAddDefault guifg=#009900 guibg=" . guibg . " ctermfg=2 ctermbg=" . ctermbg
execute "highlight GitGutterChangeDefault guifg=#bbbb00 guibg=" . guibg . " ctermfg=3 ctermbg=" . ctermbg
execute "highlight GitGutterDeleteDefault guifg=#ff2222 guibg=" . guibg . " ctermfg=1 ctermbg=" . ctermbg
highlight default link GitGutterChangeDeleteDefault GitGutterChangeDefault
execute "highlight GitGutterAddInvisible guifg=bg guibg=" . guibg . " ctermfg=" . ctermbg . " ctermbg=" . ctermbg
execute "highlight GitGutterChangeInvisible guifg=bg guibg=" . guibg . " ctermfg=" . ctermbg . " ctermbg=" . ctermbg
execute "highlight GitGutterDeleteInvisible guifg=bg guibg=" . guibg . " ctermfg=" . ctermbg . " ctermbg=" . ctermbg
highlight default link GitGutterChangeDeleteInvisible GitGutterChangeInvisble
highlight default link GitGutterAdd GitGutterAddDefault
highlight default link GitGutterChange GitGutterChangeDefault
highlight default link GitGutterDelete GitGutterDeleteDefault
highlight default link GitGutterChangeDelete GitGutterChangeDeleteDefault
" Highlights used for the whole line.
highlight default link GitGutterAddLine DiffAdd
highlight default link GitGutterChangeLine DiffChange
highlight default link GitGutterDeleteLine DiffDelete
highlight default link GitGutterChangeDeleteLine GitGutterChangeLine
endfunction
function! gitgutter#highlight#define_signs() abort
sign define GitGutterLineAdded
sign define GitGutterLineModified
sign define GitGutterLineRemoved
sign define GitGutterLineRemovedFirstLine
sign define GitGutterLineModifiedRemoved
sign define GitGutterDummy
call gitgutter#highlight#define_sign_text()
call gitgutter#highlight#define_sign_text_highlights()
call gitgutter#highlight#define_sign_line_highlights()
endfunction
function! gitgutter#highlight#define_sign_text() abort
execute "sign define GitGutterLineAdded text=" . g:gitgutter_sign_added
execute "sign define GitGutterLineModified text=" . g:gitgutter_sign_modified
execute "sign define GitGutterLineRemoved text=" . g:gitgutter_sign_removed
execute "sign define GitGutterLineRemovedFirstLine text=" . g:gitgutter_sign_removed_first_line
execute "sign define GitGutterLineModifiedRemoved text=" . g:gitgutter_sign_modified_removed
endfunction
function! gitgutter#highlight#define_sign_text_highlights() abort
" Once a sign's text attribute has been defined, it cannot be undefined or
" set to an empty value. So to make signs' text disappear (when toggling
" off or disabling) we make them invisible by setting their foreground colours
" to the background's.
if g:gitgutter_signs
sign define GitGutterLineAdded texthl=GitGutterAdd
sign define GitGutterLineModified texthl=GitGutterChange
sign define GitGutterLineRemoved texthl=GitGutterDelete
sign define GitGutterLineRemovedFirstLine texthl=GitGutterDelete
sign define GitGutterLineModifiedRemoved texthl=GitGutterChangeDelete
else
sign define GitGutterLineAdded texthl=GitGutterAddInvisible
sign define GitGutterLineModified texthl=GitGutterChangeInvisible
sign define GitGutterLineRemoved texthl=GitGutterDeleteInvisible
sign define GitGutterLineRemovedFirstLine texthl=GitGutterDeleteInvisible
sign define GitGutterLineModifiedRemoved texthl=GitGutterChangeDeleteInvisible
endif
endfunction
function! gitgutter#highlight#define_sign_line_highlights() abort
if g:gitgutter_highlight_lines
sign define GitGutterLineAdded linehl=GitGutterAddLine
sign define GitGutterLineModified linehl=GitGutterChangeLine
sign define GitGutterLineRemoved linehl=GitGutterDeleteLine
sign define GitGutterLineRemovedFirstLine linehl=GitGutterDeleteLine
sign define GitGutterLineModifiedRemoved linehl=GitGutterChangeDeleteLine
else
sign define GitGutterLineAdded linehl=
sign define GitGutterLineModified linehl=
sign define GitGutterLineRemoved linehl=
sign define GitGutterLineRemovedFirstLine linehl=
sign define GitGutterLineModifiedRemoved linehl=
endif
endfunction
function! gitgutter#highlight#get_background_colors(group) abort
redir => highlight
silent execute 'silent highlight ' . a:group
redir END
let link_matches = matchlist(highlight, 'links to \(\S\+\)')
if len(link_matches) > 0 " follow the link
return gitgutter#highlight#get_background_colors(link_matches[1])
endif
let ctermbg = gitgutter#highlight#match_highlight(highlight, 'ctermbg=\([0-9A-Za-z]\+\)')
let guibg = gitgutter#highlight#match_highlight(highlight, 'guibg=\([#0-9A-Za-z]\+\)')
return [guibg, ctermbg]
endfunction
function! gitgutter#highlight#match_highlight(highlight, pattern) abort
let matches = matchlist(a:highlight, a:pattern)
if len(matches) == 0
return 'NONE'
endif
return matches[1]
endfunction
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