#!/usr/bin/env zsh # brethil, brutally copied from https://github.com/robbyrussell/oh-my-zsh/blob/master/tools/check_for_upgrade.sh # This also runs antibody update" # First version: 14 July 2017 # Rebased on upstream: 08 December 2020 local DOTFILES_UPDATEFILE=${DOTFILES}/.dotfiles-update # Migrate .dotfiles-update file to $DOTFILES if [[ -f ~/.dotfiles-update && ! -f "${DOTFILES_UPDATEFILE}" ]]; then mv ~/.dotfiles-update "${DOTFILES_UPDATEFILE}" fi # Cancel update if: # - the automatic update is disabled. # - git is unavailable on the system. if [[ "$DISABLE_DOTFILES_AUTOUPDATE" = true ]] || ! command -v git &>/dev/null; then return fi function current_epoch() { zmodload zsh/datetime echo $(( EPOCHSECONDS / 60 / 60 / 24 )) } function _update_dotfiles_update() { echo "LAST_EPOCH=$(current_epoch)" >! "${DOTFILES}/.dotfiles-update" } function update_dotfiles() { (cd $DOTFILES; git pull -q --rebase && echo "Succesfully upgraded dotfiles" || echo "Could not upgrade dotfiles.") antibody update # update the zsh file _update_dotfiles_update } () { emulate -L zsh local epoch_target mtime option LAST_EPOCH # Remove lock directory if older than a day zmodload zsh/datetime zmodload -F zsh/stat b:zstat if mtime=$(zstat +mtime "$DOTFILES/update.lock" 2>/dev/null); then if (( (mtime + 3600 * 24) < EPOCHSECONDS )); then command rm -rf "$DOTFILES/update.lock" fi fi # Check for lock directory if ! command mkdir "$DOTFILES/update.lock" 2>/dev/null; then return fi # Remove lock directory on exit. `return 1` is important for when trapping a SIGINT: # The return status from the function is handled specially. If it is zero, the signal is # assumed to have been handled, and execution continues normally. Otherwise, the shell # will behave as interrupted except that the return status of the trap is retained. trap " unset -f current_epoch _update_dotfiles_update update_dotfiles command rm -rf '$DOTFILES/update.lock' return 1 " EXIT INT QUIT # Create or update .zsh-update file if missing or malformed if ! source "${DOTFILES_UPDATEFILE}" 2>/dev/null || [[ -z "$LAST_EPOCH" ]]; then _update_dotfiles_update return fi # Number of days before trying to update again epoch_target=${UPDATE_DOTFILES_DAYS:-5} # Test if enough time has passed until the next update if (( ( $(current_epoch) - $LAST_EPOCH ) < $epoch_target )); then return fi # Ask for confirmation before updating unless disabled if [[ "$DISABLE_UPDATE_PROMPT" = true ]]; then update_dotfiles else # input sink to swallow all characters typed before the prompt # and add a newline if there wasn't one after characters typed while read -t -k 1 option; do true; done [[ "$option" != ($'\n'|"") ]] && echo echo -n "[brethil-dotfiles] Would you like to update? [Y/n] " read -r -k 1 option [[ "$option" != $'\n' ]] && echo case "$option" in [yY$'\n']) update_dotfiles ;; [nN]) _update_dotfiles_update ;; esac fi }