darkcloud-nvimconfig/vim/config/plugins/lightline.vim

function! LLModified()
    return &ft =~ "help" ? "" : &modified ? "*" : &modifiable ? "" : "-"
endfunction

function! LLReadonly()
    return &ft !~? "help" && &readonly ? "[RO]" : ""
endfunction

function! LLFilename()
    let fname = expand("%:t")

    return
    \   fname == "__Tagbar__.1" ? g:lightline.fname :
    \   &ft == "qf" ? "[Error/Location List]" :
    \       ("" != LLReadonly() ? LLReadonly() . " " : "") .
    \       ("" != fname ? fname : "[NEW]") .
    \       ("" != LLModified() ? " " . LLModified() : "")
endfunction

function! LLFugitive()
    if expand("%:t") !~? "Tagbar" && exists("*FugitiveHead")
        let mark = ""
        let _ = FugitiveHead()
        return strlen(_) ? mark._ : ""
    else
        return ""
    endif
endfunction

function! LLFileformat()
    return winwidth(0) > 70 ? &fileformat : ""
endfunction

function! LLFiletype()
    return winwidth(0) > 70 ? (strlen(&filetype) ? &filetype : "none") : ""
endfunction

function! LLFileencoding()
    return winwidth(0) > 70 ? (strlen(&fenc) ? &fenc : &enc) : ""
endfunction

function! LLMode()
    let fname = expand("%:t")

    return fname == "__Tagbar__" ? "Tagbar" :
    \   winwidth(0) > 60 ? lightline#mode() : ""
endfunction

let g:tagbar_status_func = "TagbarStatusFunc"

function! TagbarStatusFunc(current, sort, fname, ...) abort
    let g:lightline.fname = "tags"
    return lightline#statusline(0)
endfunction

let g:lightline = {
    \ "enable": {
    \     "statusline": 1,
    \     "tabline": 1
    \ },
    \
    \ "component_function": {
    \     "fugitive": "LLFugitive",
    \     "filename": "LLFilename",
    \     "fileformat": "LLFileformat",
    \     "filetype": "LLFiletype",
    \     "fileencoding": "LLFileencoding",
    \     "mode": "LLMode"
    \ },
    \
    \ "component_expand": {
    \     "linter_checking": "lightline#ale#checking",
    \     "linter_warnings": "lightline#ale#warnings",
    \     "linter_errors": "lightline#ale#errors",
    \     "linter_ok": "lightline#ale#ok"
    \ },
    \
    \ "component_type": {
    \     "linter_checking": "left",
    \     "linter_warnings": "warning",
    \     "linter_errors": "error",
    \     "linter_ok": "left"
    \ },
    \
    \ "component": {
    \     "tagbar": "%{tagbar#currenttag('[%s]', '', 'f')}"
    \ },
    \
    \ "active": {
    \     "left": [[ "mode", "paste" ], [ "fugitive", "filename" ], [ "tagbar" ]],
    \     "right": [[ "linter_checking", "linter_errors", "linter_warnings", "linter_ok" ], [ "fileformat", "fileencoding", "filetype" ], [ "percent", "lineinfo" ]]
    \ }
\ }

let g:lightline#ale#indicator_checking = ""
let g:lightline#ale#indicator_warnings = "W:"
let g:lightline#ale#indicator_errors = "E:"
let g:lightline#ale#indicator_ok = "OK"

"status bar config with and without powerline fonts (default: 0)
if (g:enablepowerline == 1)
    let g:lightline.separator = { "left": "", "right": "" }
    let g:lightline.subseparator = { "left": "", "right": "" }
else
    let g:lightline.separator = { "left": "", "right": "" }
    let g:lightline.subseparator = { "left": "|", "right": "|" }
    let g:lightline.tabline_subseparator = { "left": "", "right": "" }
endif

"ligtline theme {{{
    let s:p = { "normal": {}, "inactive": {}, "insert": {}, "replace": {}, "visual": {}, "tabline": {} }

    if &term != "linux"
        let g:lightline.colorscheme = "darkcloud"

        let s:p.normal.left = [[ g:cBlue, g:cDarkBg ], [ g:cWhite, g:cLightBg ]]
        let s:p.inactive.left = [[ g:cGray3, g:cDarkBg ], [ g:cGray3, g:cLightBg ]]
        let s:p.normal.right = [[ g:cWhite, g:cDarkBg ], [ g:cWhite, g:cLightBg ], [ g:cWhite, g:cDarkBg ]]
        let s:p.inactive.right = [[ g:cGray3, g:cDarkBg ], [ g:cGray3, g:cLightBg ], [ g:cGray3, g:cDarkBg ]]

        let s:p.insert.left = [[ g:cRed, g:cLightBg ], [ g:cWhite, g:cDarkBg ]]
        let s:p.replace.left = [[ g:cLightBg, g:cRed ], [ g:cWhite, g:cDarkBg ]]
        let s:p.visual.left = [[ g:cYellow, g:cLightBg ], [ g:cWhite, g:cDarkBg ]]

        let s:p.normal.middle = [[ g:cWhite, g:cLightBg ]]
        let s:p.normal.error = [[ g:cRed, g:cLightBg ]]
        let s:p.normal.warning = [[ g:cYellow, g:cLightBg ]]

        let s:p.tabline.left = [[ g:cGray2, g:cLightBg ]]
        let s:p.tabline.tabsel = [[ g:cWhite, g:cDarkBg ]]
        let s:p.tabline.middle = [[ g:cGray2, g:cLightBg ]]
        let s:p.tabline.right = [[ g:cWhite, g:cDarkBg ]]

        let g:lightline#colorscheme#darkcloud#palette = lightline#colorscheme#fill(s:p)
    endif
"}}}