local _gitdir
local last_fetch
local diff

cd $1

gitdir=$(git rev-parse --git-dir 2> /dev/null) || return 0
last_fetch=$(zstat +mtime $gitdir/FETCH_HEAD 2> /dev/null || echo 0)
let "diff = $(strftime %s) - $last_fetch"
[ $diff -gt ${GIT_FETCH_INTERVAL:-30} ] && git fetch --all -p

return 0

# vim: set ts=2 sw=2 tw=0 ft=sh :