oh-my-bash/tools/check_for_upgrade.sh
2017-03-19 15:40:25 +07:00

61 lines
1.3 KiB
Bash

#!/usr/bin/env bash
EPOCHSECONDS="$(date +%s)"
function _current_epoch() {
echo $(( $EPOCHSECONDS / 60 / 60 / 24 ))
}
function _update_osh_update() {
echo "LAST_EPOCH=$(_current_epoch)" >! ~/.osh-update
}
function _upgrade_osh() {
env OSH=$OSH sh $OSH/tools/upgrade.sh
# update the osh file
_update_osh_update
}
epoch_target=$UPDATE_OSH_DAYS
if [[ -z "$epoch_target" ]]; then
# Default to old behavior
epoch_target=13
fi
# Cancel upgrade if the current user doesn't have write permissions for the
# oh-my-bash directory.
[[ -w "$OSH" ]] || return 0
# Cancel upgrade if git is unavailable on the system
which git >/dev/null || return 0
if mkdir "$OSH/log/update.lock" 2>/dev/null; then
if [ -f ~/.osh-update ]; then
. ~/.osh-update
if [[ -z "$LAST_EPOCH" ]]; then
_update_osh_update && return 0;
fi
epoch_diff=$(($(_current_epoch) - $LAST_EPOCH))
if [ $epoch_diff -gt $epoch_target ]; then
if [ "$DISABLE_UPDATE_PROMPT" = "true" ]; then
_upgrade_osh
else
echo "[Oh My Zsh] Would you like to check for updates? [Y/n]: \c"
read line
if [[ "$line" == Y* ]] || [[ "$line" == y* ]] || [ -z "$line" ]; then
_upgrade_osh
else
_update_osh_update
fi
fi
fi
else
# create the osh file
_update_osh_update
fi
rmdir $OSH/log/update.lock
fi