mirror of
https://github.com/ohmyzsh/ohmyzsh.git
synced 2025-11-04 13:21:19 +08:00
303 lines
9.9 KiB
Bash
303 lines
9.9 KiB
Bash
# Migrate .zsh-update file to $ZSH_CACHE_DIR
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if [[ -f ~/.zsh-update && ! -f "${ZSH_CACHE_DIR}/.zsh-update" ]]; then
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mv ~/.zsh-update "${ZSH_CACHE_DIR}/.zsh-update"
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fi
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# Get user's update preferences
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#
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# Supported update modes:
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# - prompt (default): the user is asked before updating when it's time to update
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# - auto: the update is performed automatically when it's time
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# - reminder: a reminder is shown to the user when it's time to update
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# - background-alpha: an experimental update-on-the-background option
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# - disabled: automatic update is turned off
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zstyle -s ':omz:update' mode update_mode || {
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update_mode=prompt
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# If the mode zstyle setting is not set, support old-style settings
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[[ "$DISABLE_UPDATE_PROMPT" != true ]] || update_mode=auto
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[[ "$DISABLE_AUTO_UPDATE" != true ]] || update_mode=disabled
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}
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# Cancel update if:
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# - the automatic update is disabled
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# - the current user doesn't have write permissions nor owns the $ZSH directory
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# - is not run from a tty
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# - git is unavailable on the system
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# - $ZSH is not a git repository
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if [[ "$update_mode" = disabled ]] \
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|| [[ ! -w "$ZSH" || ! -O "$ZSH" ]] \
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|| [[ ! -t 1 && ${POWERLEVEL9K_INSTANT_PROMPT:-off} == off ]] \
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|| ! command git --version 2>&1 >/dev/null \
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|| (builtin cd -q "$ZSH"; ! command git rev-parse --is-inside-work-tree &>/dev/null); then
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unset update_mode
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return
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fi
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function current_epoch() {
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zmodload zsh/datetime
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echo $(( EPOCHSECONDS / 60 / 60 / 24 ))
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}
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function is_update_available() {
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local branch
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branch=${"$(builtin cd -q "$ZSH"; git config --local oh-my-zsh.branch)":-master}
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local remote remote_url remote_repo
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remote=${"$(builtin cd -q "$ZSH"; git config --local oh-my-zsh.remote)":-origin}
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remote_url=$(builtin cd -q "$ZSH"; git config remote.$remote.url)
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local repo
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case "$remote_url" in
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https://github.com/*) repo=${${remote_url#https://github.com/}%.git} ;;
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git@github.com:*) repo=${${remote_url#git@github.com:}%.git} ;;
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*)
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# If the remote is not using GitHub we can't check for updates
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# Let's assume there are updates
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return 0 ;;
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esac
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# If the remote repo is not the official one, let's assume there are updates available
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[[ "$repo" = ohmyzsh/ohmyzsh ]] || return 0
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local api_url="https://api.github.com/repos/${repo}/commits/${branch}"
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# Get local HEAD. If this fails assume there are updates
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local local_head
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local_head=$(builtin cd -q "$ZSH"; git rev-parse $branch 2>/dev/null) || return 0
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# Get remote HEAD. If no suitable command is found assume there are updates
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# On any other error, skip the update (connection may be down)
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local remote_head
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remote_head=$(
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if (( ${+commands[curl]} )); then
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curl --connect-timeout 2 -fsSL -H 'Accept: application/vnd.github.v3.sha' $api_url 2>/dev/null
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elif (( ${+commands[wget]} )); then
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wget -T 2 -O- --header='Accept: application/vnd.github.v3.sha' $api_url 2>/dev/null
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elif (( ${+commands[fetch]} )); then
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HTTP_ACCEPT='Accept: application/vnd.github.v3.sha' fetch -T 2 -o - $api_url 2>/dev/null
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else
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exit 0
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fi
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) || return 1
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# Compare local and remote HEADs (if they're equal there are no updates)
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[[ "$local_head" != "$remote_head" ]] || return 1
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# If local and remote HEADs don't match, check if there's a common ancestor
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# If the merge-base call fails, $remote_head might not be downloaded so assume there are updates
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local base
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base=$(builtin cd -q "$ZSH"; git merge-base $local_head $remote_head 2>/dev/null) || return 0
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# If the common ancestor ($base) is not $remote_head,
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# the local HEAD is older than the remote HEAD
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[[ $base != $remote_head ]]
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}
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function update_last_updated_file() {
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local exit_status="$1" error="$2"
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if [[ -z "${1}${2}" ]]; then
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echo "LAST_EPOCH=$(current_epoch)" >! "${ZSH_CACHE_DIR}/.zsh-update"
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return
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fi
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cat >! "${ZSH_CACHE_DIR}/.zsh-update" <<EOD
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LAST_EPOCH=$(current_epoch)
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EXIT_STATUS=${exit_status}
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ERROR='${error//\'/’}'
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EOD
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}
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function update_ohmyzsh() {
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local verbose_mode
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zstyle -s ':omz:update' verbose verbose_mode || verbose_mode=default
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# Force verbose mode to silent if p10k instant prompt is enabled
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if [[ ${POWERLEVEL9K_INSTANT_PROMPT:-off} != "off" ]]; then
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verbose_mode=silent
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fi
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if [[ "$update_mode" != background-alpha ]] \
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&& LANG= ZSH="$ZSH" zsh -f "$ZSH/tools/upgrade.sh" -i -v $verbose_mode; then
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update_last_updated_file
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return $?
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fi
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local exit_status error
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if error=$(LANG= ZSH="$ZSH" zsh -f "$ZSH/tools/upgrade.sh" -i -v silent 2>&1); then
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update_last_updated_file 0 "Update successful"
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else
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exit_status=$?
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update_last_updated_file $exit_status "$error"
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return $exit_status
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fi
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}
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function has_typed_input() {
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# Created by Philippe Troin <phil@fifi.org>
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# https://zsh.org/mla/users/2022/msg00062.html
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emulate -L zsh
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zmodload zsh/zselect
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# Back up stty settings prior to disabling canonical mode
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# Consider that no input can be typed if stty fails
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# (this might happen if stdin is not a terminal)
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local termios
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termios=$(stty --save 2>/dev/null) || return 1
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{
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# Disable canonical mode so that typed input counts
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# regardless of whether Enter was pressed
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stty -icanon
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# Poll stdin (fd 0) for data ready to be read
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zselect -t 0 -r 0
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return $?
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} always {
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# Restore stty settings
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stty $termios
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}
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}
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function handle_update() {
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() {
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emulate -L zsh
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local epoch_target mtime option LAST_EPOCH
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# Remove lock directory if older than a day
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zmodload zsh/datetime
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zmodload -F zsh/stat b:zstat
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if mtime=$(zstat +mtime "$ZSH/log/update.lock" 2>/dev/null); then
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if (( (mtime + 3600 * 24) < EPOCHSECONDS )); then
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command rm -rf "$ZSH/log/update.lock"
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fi
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fi
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# Check for lock directory
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if ! command mkdir "$ZSH/log/update.lock" 2>/dev/null; then
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return
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fi
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# Remove lock directory on exit. `return $ret` is important for when trapping a SIGINT:
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# The return status from the function is handled specially. If it is zero, the signal is
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# assumed to have been handled, and execution continues normally. Otherwise, the shell
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# will behave as interrupted except that the return status of the trap is retained.
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# This means that for a CTRL+C, the trap needs to return the same exit status so that
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# the shell actually exits what it's running.
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trap "
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ret=\$?
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unset update_mode
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unset -f current_epoch is_update_available update_last_updated_file update_ohmyzsh handle_update 2>/dev/null
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command rm -rf '$ZSH/log/update.lock'
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return \$ret
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" EXIT INT QUIT
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# Create or update .zsh-update file if missing or malformed
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if ! source "${ZSH_CACHE_DIR}/.zsh-update" 2>/dev/null || [[ -z "$LAST_EPOCH" ]]; then
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update_last_updated_file
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return
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fi
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# Number of days before trying to update again
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zstyle -s ':omz:update' frequency epoch_target || epoch_target=${UPDATE_ZSH_DAYS:-13}
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# Test if enough time has passed until the next update
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if (( ( $(current_epoch) - $LAST_EPOCH ) < $epoch_target )); then
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return
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fi
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# Test if Oh My Zsh directory is a git repository
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if ! (builtin cd -q "$ZSH" && LANG= git rev-parse &>/dev/null); then
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echo >&2 "[oh-my-zsh] Can't update: not a git repository."
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return
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fi
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# Check if there are updates available before proceeding
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if ! is_update_available; then
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update_last_updated_file
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return
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fi
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# If in reminder mode or user has typed input, show reminder and exit
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if [[ "$update_mode" = reminder ]] || { [[ "$update_mode" != background-alpha ]] && has_typed_input }; then
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printf '\r\e[0K' # move cursor to first column and clear whole line
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echo "[oh-my-zsh] It's time to update! You can do that by running \`omz update\`"
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return 0
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fi
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# Don't ask for confirmation before updating if in auto mode
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if [[ "$update_mode" = (auto|background-alpha) ]]; then
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update_ohmyzsh
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return $?
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fi
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# Ask for confirmation and only update on 'y', 'Y' or Enter
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# Otherwise just show a reminder for how to update
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printf "[oh-my-zsh] Would you like to update? [Y/n] "
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read -r -k 1 option
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[[ "$option" = $'\n' ]] || echo
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case "$option" in
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[yY$'\n']) update_ohmyzsh ;;
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[nN]) update_last_updated_file ;&
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*) echo "[oh-my-zsh] You can update manually by running \`omz update\`" ;;
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esac
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}
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unset update_mode
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unset -f current_epoch is_update_available update_last_updated_file update_ohmyzsh handle_update
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}
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case "$update_mode" in
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background-alpha)
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autoload -Uz add-zsh-hook
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_omz_bg_update() {
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# do the update in a subshell
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(handle_update) &|
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# register update results function
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add-zsh-hook precmd _omz_bg_update_status
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# deregister background function
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add-zsh-hook -d precmd _omz_bg_update
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unset -f _omz_bg_update
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}
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_omz_bg_update_status() {
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{
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local LAST_EPOCH EXIT_STATUS ERROR
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if [[ ! -f "$ZSH_CACHE_DIR"/.zsh-update ]]; then
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return 1
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fi
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# check update results until timeout is reached
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. "$ZSH_CACHE_DIR/.zsh-update"
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if [[ -z "$EXIT_STATUS" || -z "$ERROR" ]]; then
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return 1
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fi
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if [[ "$EXIT_STATUS" -eq 0 ]]; then
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print -P "\n%F{green}[oh-my-zsh] Update successful.%f"
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return 0
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elif [[ "$EXIT_STATUS" -ne 0 ]]; then
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print -P "\n%F{red}[oh-my-zsh] There was an error updating:%f"
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printf "\n${fg[yellow]}%s${reset_color}" "${ERROR}"
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return 0
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fi
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} always {
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if (( TRY_BLOCK_ERROR == 0 )); then
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# if last update results have been handled, remove them from the status file
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update_last_updated_file
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# deregister background function
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add-zsh-hook -d precmd _omz_bg_update_status
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unset -f _omz_bg_update_status
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fi
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}
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}
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add-zsh-hook precmd _omz_bg_update
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;;
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*)
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handle_update ;;
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esac
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