function! gitgutter#utility#supports_overscore_sign() if gitgutter#utility#windows() return &encoding ==? 'utf-8' else return &termencoding ==? &encoding || &termencoding == '' endif endfunction function! gitgutter#utility#setbufvar(buffer, varname, val) let buffer = +a:buffer " Default value for getbufvar() was introduced in Vim 7.3.831. let ggvars = getbufvar(buffer, 'gitgutter') if type(ggvars) == type('') unlet ggvars let ggvars = {} call setbufvar(buffer, 'gitgutter', ggvars) endif let ggvars[a:varname] = a:val endfunction function! gitgutter#utility#getbufvar(buffer, varname, ...) let ggvars = getbufvar(a:buffer, 'gitgutter') if type(ggvars) == type({}) && has_key(ggvars, a:varname) return ggvars[a:varname] endif if a:0 return a:1 endif endfunction function! gitgutter#utility#warn(message) abort echohl WarningMsg echo 'vim-gitgutter: ' . a:message echohl None let v:warningmsg = a:message endfunction function! gitgutter#utility#warn_once(bufnr, message, key) abort if empty(gitgutter#utility#getbufvar(a:bufnr, a:key)) call gitgutter#utility#setbufvar(a:bufnr, a:key, '1') echohl WarningMsg redraw | echom 'vim-gitgutter: ' . a:message echohl None let v:warningmsg = a:message endif endfunction " Returns truthy when the buffer's file should be processed; and falsey when it shouldn't. " This function does not and should not make any system calls. function! gitgutter#utility#is_active(bufnr) abort return g:gitgutter_enabled && \ gitgutter#utility#getbufvar(a:bufnr, 'enabled', 1) && \ !pumvisible() && \ s:is_file_buffer(a:bufnr) && \ s:exists_file(a:bufnr) && \ s:not_git_dir(a:bufnr) endfunction function! s:not_git_dir(bufnr) abort return s:dir(a:bufnr) !~ '[/\\]\.git\($\|[/\\]\)' endfunction function! s:is_file_buffer(bufnr) abort return empty(getbufvar(a:bufnr, '&buftype')) endfunction " From tpope/vim-fugitive function! s:winshell() return &shell =~? 'cmd' || exists('+shellslash') && !&shellslash endfunction " From tpope/vim-fugitive function! gitgutter#utility#shellescape(arg) abort if a:arg =~ '^[A-Za-z0-9_/.-]\+$' return a:arg elseif s:winshell() return '"' . substitute(substitute(a:arg, '"', '""', 'g'), '%', '"%"', 'g') . '"' else return shellescape(a:arg) endif endfunction function! gitgutter#utility#file(bufnr) return s:abs_path(a:bufnr, 1) endfunction " Not shellescaped function! gitgutter#utility#extension(bufnr) abort return fnamemodify(s:abs_path(a:bufnr, 0), ':e') endfunction function! gitgutter#utility#system(cmd, ...) abort call gitgutter#debug#log(a:cmd, a:000) call s:use_known_shell() silent let output = (a:0 == 0) ? system(a:cmd) : system(a:cmd, a:1) call s:restore_shell() return output endfunction function! gitgutter#utility#has_repo_path(bufnr) return index(['', -1, -2], gitgutter#utility#repo_path(a:bufnr, 0)) == -1 endfunction " Path of file relative to repo root. " " * empty string - not set " * non-empty string - path " * -1 - pending " * -2 - not tracked by git function! gitgutter#utility#repo_path(bufnr, shellesc) abort let p = gitgutter#utility#getbufvar(a:bufnr, 'path', '') return a:shellesc ? gitgutter#utility#shellescape(p) : p endfunction let s:set_path_handler = {} function! s:set_path_handler.out(buffer, path) abort let path = s:strip_trailing_new_line(a:path) call gitgutter#utility#setbufvar(a:buffer, 'path', path) if type(self.continuation) == type(function('tr')) call self.continuation() else call call(self.continuation.function, self.continuation.arguments) endif endfunction function! s:set_path_handler.err(buffer) abort call gitgutter#utility#setbufvar(a:buffer, 'path', -2) endfunction " continuation - a funcref or hash to call after setting the repo path asynchronously. " " Returns 'async' if the the path is set asynchronously, 0 otherwise. function! gitgutter#utility#set_repo_path(bufnr, continuation) abort " Values of path: " * non-empty string - path " * -1 - pending " * -2 - not tracked by git call gitgutter#utility#setbufvar(a:bufnr, 'path', -1) let cmd = gitgutter#utility#cd_cmd(a:bufnr, g:gitgutter_git_executable.' '.g:gitgutter_git_args.' ls-files --error-unmatch --full-name -z -- '.gitgutter#utility#shellescape(s:filename(a:bufnr))) if g:gitgutter_async && gitgutter#async#available() && !has('vim_starting') let handler = copy(s:set_path_handler) let handler.continuation = a:continuation call gitgutter#async#execute(cmd, a:bufnr, handler) return 'async' endif let path = gitgutter#utility#system(cmd) if v:shell_error call gitgutter#utility#setbufvar(a:bufnr, 'path', -2) else call gitgutter#utility#setbufvar(a:bufnr, 'path', s:strip_trailing_new_line(path)) endif endfunction function! gitgutter#utility#cd_cmd(bufnr, cmd) abort let cd = s:unc_path(a:bufnr) ? 'pushd' : (gitgutter#utility#windows() && s:dos_shell() ? 'cd /d' : 'cd') return cd.' '.s:dir(a:bufnr).' && '.a:cmd endfunction function! s:unc_path(bufnr) return s:abs_path(a:bufnr, 0) =~ '^\\\\' endfunction function! s:dos_shell() return &shell == 'cmd.exe' || &shell == 'command.com' endfunction function! s:use_known_shell() abort if has('unix') && &shell !=# 'sh' let [s:shell, s:shellcmdflag, s:shellredir] = [&shell, &shellcmdflag, &shellredir] let &shell = 'sh' set shellcmdflag=-c shellredir=>%s\ 2>&1 endif endfunction function! s:restore_shell() abort if has('unix') && exists('s:shell') let [&shell, &shellcmdflag, &shellredir] = [s:shell, s:shellcmdflag, s:shellredir] endif endfunction function! gitgutter#utility#get_diff_base(bufnr) let p = resolve(expand('#'.a:bufnr.':p')) let ml = matchlist(p, '\v^fugitive:/.*/(\x{40,})/') if !empty(ml) && !empty(ml[1]) return ml[1].'^' endif return g:gitgutter_diff_base endfunction function! s:abs_path(bufnr, shellesc) let p = resolve(expand('#'.a:bufnr.':p')) " Remove extra parts from fugitive's filepaths let p = substitute(substitute(p, '^fugitive:', '', ''), '\v\.git/\x{40,}/', '', '') return a:shellesc ? gitgutter#utility#shellescape(p) : p endfunction function! s:dir(bufnr) abort return gitgutter#utility#shellescape(fnamemodify(s:abs_path(a:bufnr, 0), ':h')) endfunction " Not shellescaped. function! s:filename(bufnr) abort return fnamemodify(s:abs_path(a:bufnr, 0), ':t') endfunction function! s:exists_file(bufnr) abort return filereadable(s:abs_path(a:bufnr, 0)) endfunction " Get rid of any trailing new line or SOH character. " " git ls-files -z produces output with null line termination. " Vim's system() replaces any null characters in the output " with SOH (start of header), i.e. ^A. function! s:strip_trailing_new_line(line) abort return substitute(a:line, '[[:cntrl:]]$', '', '') endfunction function! gitgutter#utility#windows() return has('win64') || has('win32') || has('win16') endfunction