fix(init): bound the LocalHostName cache and don't cache lookup failures

Keying the cache on $HOST alone can't notice a LocalHostName rename
while HostName stays fixed, which would pin a stale identity forever.
Expire the entry after a day, like lib/grep.zsh does, so a rename is
picked up without giving up the fork on almost every start.

Only write the cache when scutil actually answered, so a transient
failure falls back to ${HOST/.*/} for that shell instead of pinning the
fallback name for the next day.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

oh-my-zsh.sh

@@ -100,7 +100,23 @@ done
 # Figure out the SHORT hostname
 if [[ "$OSTYPE" = darwin* ]]; then
   # macOS's $HOST changes with dhcp, etc. Use LocalHostName if possible.
-  SHORT_HOST=$(scutil --get LocalHostName 2>/dev/null) || SHORT_HOST="${HOST/.*/}"
+  # scutil costs a fork on every start, so remember its answer for a day
+  # (like lib/grep.zsh) and re-check sooner if $HOST changes.
+  __omz_host_cache="$ZSH_CACHE_DIR/localhostname"
+  __omz_host_cached=("$__omz_host_cache"(Nm-1))
+  if [[ -n "$__omz_host_cached" ]]; then
+    { read -r __omz_host_key && read -r SHORT_HOST } < "$__omz_host_cache"
+  fi
+  if [[ "$__omz_host_key" != "$HOST" || -z "$SHORT_HOST" ]]; then
+    # only cache what scutil actually answered, so a transient failure
+    # doesn't pin the fallback name for a day
+    if SHORT_HOST=$(scutil --get LocalHostName 2>/dev/null) && [[ -n "$SHORT_HOST" ]]; then
+      [[ ! -w "$ZSH_CACHE_DIR" ]] || print -rl -- "$HOST" "$SHORT_HOST" >| "$__omz_host_cache"
+    else
+      SHORT_HOST="${HOST/.*/}"
+    fi
+  fi
+  unset __omz_host_cache __omz_host_cached __omz_host_key
 else
   SHORT_HOST="${HOST/.*/}"
 fi

plugins/kubectl/README.md

@@ -71,6 +71,7 @@ plugins=(... kubectl)
 |          |                                                         | **Secret management**                                                                            |
 | kgsec    | `kubectl get secret`                                    | Get secret for decoding                                                                          |
 | kgseca   | `kubectl get secret --all-namespaces`                   | List secrets across all namespaces                                                               |
+| kesec    | `kubectl edit secret`                                   | Edit secret resource                                                                             |
 | kdsec    | `kubectl describe secret`                               | Describe secret resource in detail                                                               |
 | kdelsec  | `kubectl delete secret`                                 | Delete the secret                                                                                |
 |          |                                                         | **Deployment management**                                                                        |

plugins/kubectl/kubectl.plugin.zsh

@@ -93,6 +93,7 @@ alias kdelcm='kubectl delete configmap'
 # Secret management
 alias kgsec='kubectl get secret'
 alias kgseca='kubectl get secret --all-namespaces'
+alias kesec='kubectl edit secret'
 alias kdsec='kubectl describe secret'
 alias kdelsec='kubectl delete secret'
 

plugins/symfony6/symfony6.plugin.zsh

@@ -15,8 +15,8 @@
 #   - https://github.com/symfony/symfony/blob/5.4/src/Symfony/Component/Console/Resources/completion.bash
 #
 _sf_console() {
-    local lastParam flagPrefix requestComp out comp
-    local -a completions
+    local lastParam out comp sf_cmd
+    local -a completions flagPrefix requestComp inputs
 
     # The user could have moved the cursor backwards on the command-line.
     # We need to trigger completion from the $CURRENT location, so we need
@@ -29,11 +29,20 @@ _sf_console() {
     setopt local_options BASH_REMATCH
     if [[ "${lastParam}" =~ '-.*=' ]]; then
         # We are dealing with a flag with an =
-        flagPrefix="-P ${BASH_REMATCH}"
+        flagPrefix=(-P "${BASH_REMATCH}")
     fi
 
-    # Prepare the command to obtain completions
-    requestComp="${words[0]} ${words[1]} _complete --no-interaction -szsh -a1 -c$((CURRENT-1))" i=""
+    # Prepare the command to obtain completions. An alias is resolved here,
+    # because the request is no longer read again by the shell.
+    sf_cmd="${words[1]}"
+    if [[ -n "${aliases[$sf_cmd]}" ]]; then
+        requestComp=(${(z)aliases[$sf_cmd]})
+    else
+        requestComp=(${~sf_cmd})
+    fi
+
+    requestComp+=(_complete --no-interaction -szsh -a1 "-c$((CURRENT-1))")
+
     for w in ${words[@]}; do
         w=$(printf -- '%b' "$w")
         # remove quotes from typed values
@@ -47,19 +56,18 @@ _sf_console() {
         fi
         # empty values are ignored
         if [ ! -z "$w" ]; then
-            i="${i}-i${w} "
+            inputs+=("-i$w")
         fi
     done
 
     # Ensure at least 1 input
-    if [ "${i}" = "" ]; then
-        requestComp="${requestComp} -i\" \""
-    else
-        requestComp="${requestComp} ${i}"
+    if (( ! $#inputs )); then
+        inputs=(-i' ')
     fi
 
-    # Use eval to handle any environment variables and such
-    out=$(eval ${requestComp} 2>/dev/null)
+    # The request is run without being read again by the shell, so that a
+    # "$(...)" or a backtick typed on the command line is not executed
+    out=$(SHELL_VERBOSITY=0 "${requestComp[@]}" "${inputs[@]}" 2>/dev/null)
 
     while IFS='\n' read -r comp; do
         if [ -n "$comp" ]; then
@@ -75,7 +83,7 @@ _sf_console() {
     done < <(printf "%s\n" "${out[@]}")
 
     # Let inbuilt _describe handle completions
-    eval _describe "completions" completions $flagPrefix
+    _describe "completions" completions "${flagPrefix[@]}"
     return $?
 }
 

tools/install.sh

@@ -370,7 +370,6 @@ setup_zshrc() {
       # Ask user for confirmation before backing up and overwriting
       echo "${FMT_YELLOW}Found ${zdot}/.zshrc."
       echo "The existing .zshrc will be backed up to .zshrc.pre-oh-my-zsh if overwritten."
-      echo "Your command history will be backed up too, since replacing .zshrc drops any SAVEHIST you had set."
       echo "Make sure your .zshrc contains the following minimal configuration if you choose not to overwrite it:${FMT_RESET}"
       echo "----------------------------------------"
       cat "$ZSH/templates/minimal.zshrc"
@@ -399,44 +398,6 @@ setup_zshrc() {
     fi
     echo "${FMT_GREEN}Backing up to ${OLD_ZSHRC}${FMT_RESET}"
     mv "$zdot/.zshrc" "$OLD_ZSHRC"
-
-    # The .zshrc we just moved aside is where the user's SAVEHIST lived. Without
-    # it zsh trims $HISTFILE the next time a shell exits, so copy the history
-    # while it is still intact. $HISTFILE is a zsh variable we cannot read from
-    # here, so cover both locations it is commonly given: /etc/zshrc on macOS
-    # sets ${ZDOTDIR:-$HOME}/.zsh_history, and lib/history.zsh falls back to
-    # $HOME/.zsh_history.
-    hist_backed_up=""
-    for hist in "$zdot/.zsh_history" "$HOME/.zsh_history"; do
-      if [ ! -f "$hist" ]; then
-        continue
-      fi
-      case " $hist_backed_up " in
-        *" $hist "*) continue ;;
-      esac
-      hist_backup_base="${hist}.pre-oh-my-zsh"
-      hist_backup="$hist_backup_base"
-      if [ -e "$hist_backup" ]; then
-        hist_backup_ts="$(date +%Y-%m-%d_%H-%M-%S)"
-        hist_backup_i=0
-        while [ -e "$hist_backup" ]; do
-          hist_backup_i=$((hist_backup_i + 1))
-          hist_backup="${hist_backup_base}-${hist_backup_ts}-${hist_backup_i}"
-        done
-      fi
-      if cp -p "$hist" "$hist_backup"; then
-        echo "${FMT_GREEN}Backing up your command history to ${hist_backup}${FMT_RESET}"
-        hist_backed_up="$hist_backed_up $hist"
-      else
-        # a half-written file would look like a usable backup
-        rm -f "$hist_backup"
-        fmt_error "could not back up $hist"
-        if ! mv "$OLD_ZSHRC" "$zdot/.zshrc"; then
-          fmt_error "could not restore $zdot/.zshrc from backup"
-        fi
-        exit 1
-      fi
-    done
   fi
 
   echo "${FMT_GREEN}Using the Oh My Zsh template file and adding it to $zdot/.zshrc.${FMT_RESET}"