diff options
Diffstat (limited to 'tools/check_for_upgrade.sh')
| -rw-r--r-- | tools/check_for_upgrade.sh | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/tools/check_for_upgrade.sh b/tools/check_for_upgrade.sh index 0f8c9c391..881bc6c49 100644 --- a/tools/check_for_upgrade.sh +++ b/tools/check_for_upgrade.sh @@ -1,15 +1,17 @@ -#!/bin/sh +#!/usr/bin/env zsh + +zmodload zsh/datetime function _current_epoch() { - echo $(($(date +%s) / 60 / 60 / 24)) + echo $(( $EPOCHSECONDS / 60 / 60 / 24 )) } function _update_zsh_update() { - echo "LAST_EPOCH=$(_current_epoch)" > ~/.zsh-update + echo "LAST_EPOCH=$(_current_epoch)" >! ~/.zsh-update } function _upgrade_zsh() { - /usr/bin/env ZSH=$ZSH /bin/sh $ZSH/tools/upgrade.sh + env ZSH=$ZSH /bin/sh $ZSH/tools/upgrade.sh # update the zsh file _update_zsh_update } @@ -20,7 +22,12 @@ if [[ -z "$epoch_target" ]]; then epoch_target=13 fi -[ -f ~/.profile ] && source ~/.profile +# Cancel upgrade if the current user doesn't have write permissions for the +# oh-my-zsh directory. +[[ -w "$ZSH" ]] || return 0 + +# Cancel upgrade if git is unavailable on the system +whence git >/dev/null || return 0 if [ -f ~/.zsh-update ] then @@ -37,10 +44,9 @@ then then _upgrade_zsh else - echo "[Oh My Zsh] Would you like to check for updates?" - echo "Type Y to update oh-my-zsh: \c" + echo "[Oh My Zsh] Would you like to check for updates? [Y/n]: \c" read line - if [ "$line" = Y ] || [ "$line" = y ]; then + if [[ "$line" == Y* ]] || [[ "$line" == y* ]] || [ -z "$line" ]; then _upgrade_zsh else _update_zsh_update @@ -51,4 +57,3 @@ else # create the zsh file _update_zsh_update fi - |