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|
" Declare paths to check for fortune files
let s:paths = [
\ $HOME.'/.fortunes',
\ $HOME.'/.local/share/games/fortunes',
\]
" List of executables for which we need to check
let s:executables = [
\ 'fortune',
\ 'timeout',
\]
" Entry point for plugin
function! fortune#() abort
" Check we have all of the executables we need
for executable in s:executables
if !executable(executable)
echoerr 'Missing executable "'.executable.'"'
endif
endfor
" Maximum length of fortunes is the width of the screen minus 1; characters
" wider than one column will break this
"
let limit = &columns - 1
" Some implementations of fortune(6) thrash the disk if they can't meet the
" length limit, so we need to rap this invocation in a timeout(1) call
let command = [
\ 'timeout',
\ '0.3s',
\ 'fortune',
\ '-s',
\ '-n',
\ limit,
\]
" Find a path for custom fortunes and add it on to the command if found
for path in s:paths
if isdirectory(path)
call add(command, path)
break
endif
endfor
" Run the command and condense any control or space character groups into
" just one space
let fortune = substitute(
\ system(join(command)),
\ '[[:cntrl:][:space:]]\+',
\ ' ',
\ 'g',
\)
" Show the fortune message!
echomsg fortune
endfunction
|
