feat(updater): add cooldown option to delay applying updates (#13813)

Introduces a new `zstyle ':omz:update' cooldown <days>` setting that limits
the updater to only apply commits that are at least N days old. Defaults to 0
(current behavior — always pull latest).

When cooldown is set, the updater fetches the remote branch and finds the most
recent commit whose committer timestamp is at least N days old, then applies it
via `git merge --ff-only`. If the local copy is already at or past the cooldown
ref, nothing changes.

- tools/upgrade.sh: reads cooldown zstyle, replaces git pull with fetch +
  merge --ff-only when cooldown > 0
- README.md: documents the new setting under "Getting Updates"
- templates/zshrc.zsh-template: adds commented-out cooldown example alongside
  frequency, with rephrased comments to clarify how the two work together

README.md

@@ -466,6 +466,15 @@ zstyle ':omz:update' frequency 7
 zstyle ':omz:update' frequency 0
 ```
 
+By default, updates always pull the latest changes. If you'd rather let others kick the tires first
+before an update reaches your machine, you can set a cooldown (in days). You'll still get everything —
+just a little later:
+
+```sh
+# Only apply updates that are at least 10 days old
+zstyle ':omz:update' cooldown 10
+```
+
 ### Updates Verbosity
 
 You can also limit the update verbosity with the following settings:

plugins/deno/README.md

@@ -4,17 +4,17 @@ This plugin sets up completion and aliases for [Deno](https://deno.land).
 
 ## Aliases
 
-| Alias | Full command        |
-| ----- | ------------------- |
-| db    | deno bundle         |
-| dc    | deno compile        |
-| dca   | deno cache          |
-| dfmt  | deno fmt            |
-| dh    | deno help           |
-| dli   | deno lint           |
-| drn   | deno run            |
-| drA   | deno run -A         |
-| drw   | deno run --watch    |
-| dru   | deno run --unstable |
-| dts   | deno test           |
-| dup   | deno upgrade        |
+| Alias | Full command     |
+| ----- | ---------------- |
+| dc    | deno compile     |
+| dca   | deno cache       |
+| dck   | deno check       |
+| dfmt  | deno fmt         |
+| dh    | deno help        |
+| dli   | deno lint        |
+| drn   | deno run         |
+| drA   | deno run -A      |
+| drw   | deno run --watch |
+| dsv   | deno serve       |
+| dts   | deno test        |
+| dup   | deno upgrade     |

plugins/deno/deno.plugin.zsh

@@ -1,14 +1,14 @@
 # ALIASES
-alias db='deno bundle'
 alias dc='deno compile'
 alias dca='deno cache'
+alias dck='deno check'
 alias dfmt='deno fmt'
 alias dh='deno help'
 alias dli='deno lint'
 alias drn='deno run'
 alias drA='deno run -A'
 alias drw='deno run --watch'
-alias dru='deno run --unstable'
+alias dsv='deno serve'
 alias dts='deno test'
 alias dup='deno upgrade'
 

plugins/web-search/README.md

@@ -53,7 +53,7 @@ Available search contexts are:
 | `gopkg`               | `https://pkg.go.dev/search?m=package&q=`        |
 | `chatgpt`             | `https://chatgpt.com/?q=`                       |
 | `claudeai`            | `https://claude.ai/new?q=`                      |
-| `grok`                | `https://grok.com/?q=`                          |
+| `grokcom`             | `https://grok.com/?q=`                          |
 | `reddit`              | `https://www.reddit.com/search/?q=`             |
 | `ppai`                | `https://www.perplexity.ai/search/new?q=`       |
 | `rscrate`             | `https://crates.io/search?q=`                   |

plugins/web-search/web-search.plugin.zsh

@@ -93,7 +93,7 @@ alias npmpkg='web_search npmpkg'
 alias packagist='web_search packagist'
 alias gopkg='web_search gopkg'
 alias chatgpt='web_search chatgpt'
-alias grok='web_search grok'
+alias grokcom='web_search grok'
 alias claudeai='web_search claudeai'
 alias reddit='web_search reddit'
 alias ppai='web_search ppai'

templates/zshrc.zsh-template

@@ -28,9 +28,12 @@ ZSH_THEME="robbyrussell"
 # zstyle ':omz:update' mode auto      # update automatically without asking
 # zstyle ':omz:update' mode reminder  # just remind me to update when it's time
 
-# Uncomment the following line to change how often to auto-update (in days).
+# Uncomment the following line to change the frequency the auto-updater is run (in days).
 # zstyle ':omz:update' frequency 13
 
+# Uncomment the following line to set how old an update must be before it's applied, manually or via the auto-updater (in days).
+# zstyle ':omz:update' cooldown 10
+
 # Uncomment the following line if pasting URLs and other text is messed up.
 # DISABLE_MAGIC_FUNCTIONS="true"
 

tools/upgrade.sh

@@ -231,6 +231,10 @@ local ret=0
 remote=${"$(git config --local oh-my-zsh.remote)":-origin}
 branch=${"$(git config --local oh-my-zsh.branch)":-master}
 
+# cooldown: minimum age (in days) of commits to apply
+local cooldown_days
+zstyle -s ':omz:update' cooldown cooldown_days || cooldown_days=0
+
 # repository state
 last_head=$(git symbolic-ref --quiet --short HEAD || git rev-parse HEAD)
 # checkout update branch
@@ -242,7 +246,20 @@ last_commit=$(git rev-parse "$branch")
 if [[ $verbose_mode != silent ]]; then
   printf "${BLUE}%s${RESET}\n" "Updating Oh My Zsh"
 fi
-if LANG= git pull --quiet --rebase $remote $branch; then
+if {
+  if (( cooldown_days > 0 )); then
+    zmodload zsh/datetime
+    local cutoff_epoch cooldown_ref
+    cutoff_epoch=$(( EPOCHSECONDS - cooldown_days * 86400 ))
+    LANG= git fetch --quiet $remote $branch && {
+      cooldown_ref=$(git log --format="%H %ct" "$remote/$branch" \
+        | awk -v c="$cutoff_epoch" '$2 <= c { print $1; exit }')
+      [[ -z "$cooldown_ref" ]] || LANG= git merge --ff-only --quiet "$cooldown_ref"
+    }
+  else
+    LANG= git pull --quiet --rebase $remote $branch
+  fi
+}; then
   # Check if it was really updated or not
   if [[ "$(git rev-parse HEAD)" = "$last_commit" ]]; then
     message="Oh My Zsh is already at the latest version."