fix(zsh): reduce bootstrap time ~2100 => ~1600 🚀

zsh/.entry-point.sh

@@ -6,6 +6,11 @@ export TERMINAL_INSTANCE_ID=$(date +%s)
 
 source "$HOME/shell-config/zsh/.utils.sh"
 
+
+# compinit and completions
+autoload -Uz compinit
+compinit
+
 # Homebrew paths
 BROW="/usr/local/Homebrew/bin/brew"
 BREW="/opt/homebrew/bin/brew"
@@ -33,12 +38,7 @@ export NVM_DIR="$HOME/.nvm"
 
 # ----- shell-config -----
 export PATH="$HOME/shell-config/executable:$PATH"
-source <(shell-config completion-script)
-
-function grant_permissions() {
-    sudo chown -R "$USER":admin "$1"
-    chmod -R 770 "$1"
-}
+cache_completion "shell-config completion-script" "shell-config" 120
 
 function shell-doctor() {
     chmod -R 755 $(compaudit)
@@ -64,23 +64,20 @@ if find $HOME/shell-config/zsh -type d ! -perm 770 -print -quit | grep -q .; the
 fi
 
 # check for shell-config updates once in 10 times
-silent_background() {
-    { "$@" 2>&3 & } 3>&2 2>/dev/null
-    disown &>/dev/null # Prevent whine if job has already completed
-}
 if [ $((RANDOM % 10)) -eq 0 ]; then
     silent_background shell-config update -m
 fi
 # ----- shell-config -----
 
-# if google-cloud-sdk installed manually via download
-sourceIf "$HOME/Downloads/google-cloud-sdk/path.zsh.inc"
-sourceIf "$HOME/Downloads/google-cloud-sdk/completion.zsh.inc"
 
 # if google-cloud-sdk installed via Homebrew
 sourceIf "$BREW_PERFIX/share/google-cloud-sdk/path.zsh.inc"
 sourceIf "$BREW_PERFIX/share/google-cloud-sdk/completion.zsh.inc"
 
+# if google-cloud-sdk installed via Homebrew legacy
+sourceIf "$BROW_PERFIX/share/google-cloud-sdk/path.zsh.inc"
+sourceIf "$BROW_PERFIX/share/google-cloud-sdk/completion.zsh.inc"
+
 # Autosuggest
 sourceIf "$BREW_PERFIX/share/zsh-autosuggestions/zsh-autosuggestions.zsh"
 sourceIf "$BROW_PERFIX/share/zsh-autosuggestions/zsh-autosuggestions.zsh"
@@ -89,19 +86,11 @@ sourceIf "$BROW_PERFIX/share/zsh-autosuggestions/zsh-autosuggestions.zsh"
 # only if zsh-completions installed via Homebrew
 if [ -f "$BREW_PERFIX/share/zsh-completions" ]; then
     FPATH="$BREW_PERFIX/share/zsh-completions:$FPATH"
-    # load compinit as a function on an exported path to avoid overlapping with other compinit commands
-    autoload -Uz compinit
-    # toggle ON completions with tab key
-    compinit
 fi
 
 # only if zsh-completions installed via legacy Homebrew
 if [ -f "$BROW_PERFIX/share/zsh-completions" ]; then
     FPATH=$BROW_PERFIX/share/zsh-completions:$FPATH
-    # load compinit as a function on an exported path to avoid overlapping with other compinit commands
-    autoload -Uz compinit
-    # toggle ON completions with tab key
-    compinit
 fi
 
 # Colored correct code
@@ -152,11 +141,6 @@ function killport() {
 autoload -U add-zsh-hook
 add-zsh-hook -Uz chpwd (){ ls; }
 
-# github-copilot-cli alias setup
-if command -v github-copilot-cli &>/dev/null; then
-    eval "$(github-copilot-cli alias -- "$0")"
-fi
-
 # sync
 alias reload="exec /bin/zsh"
 

zsh/.utils.sh

@@ -1,5 +1,6 @@
 #! /usr/bin/env zsh
 
+# Usage: performance_mark "marker_name"; ...; performance_mark "marker_name"
 function performance_mark() {
     # if `gdate` not exists, install
     if ! command -v gdate &>/dev/null; then
@@ -55,8 +56,42 @@ function wait_for_input() {
     done
 }
 
+# Usage: sourceIf <file>
 function sourceIf() {
     if [ -f "$1" ]; then
         source $1
     fi
 }
+
+# Usage: grant_permissions <path>
+function grant_permissions() {
+    sudo chown -R "$USER":admin "$1"
+    chmod -R 770 "$1"
+}
+
+# Usage: silent_background <command>
+function silent_background() {
+    { "$@" 2>&3 & } 3>&2 2>/dev/null
+    disown &>/dev/null # Prevent whine if job has already completed
+}
+
+# cache completion scripts to speed up shell startup
+# Usage: cache_completion <completion_script> <completion_name> <TTL_in_minutes>
+function cache_completion() {
+    local completion_script=$1
+    local completion_name=$2
+    local ttl=$3
+
+    local cache_dir="$HOME/.cache/completions"
+    local cache_file="$cache_dir/$completion_name"
+
+    if [ ! -d "$cache_dir" ]; then
+        mkdir -p "$cache_dir"
+    fi
+
+    if [ ! -f "$cache_file" ] || [ $(find "$cache_file" -mmin +$ttl) ]; then
+        eval "$completion_script" >$cache_file
+    fi
+
+    source $cache_file
+}

zsh/.zshrc.extends.sh

@@ -2,8 +2,6 @@
 
 echo "extends loaded"
 
-source "$HOME/shell-config/zsh/.utils.sh"
-
 function get_all_enabled_files() {
     find "$1" -type f -not -name "*.disabled" -print0 | xargs -0 -I {} basename {} | tr '\n' ' '
 }

zsh/extends/.zshrc.extends.angular.sh

@@ -19,4 +19,5 @@ function ngrxcreate() {
 # Load Angular CLI autocompletion.
 if command -v ng &>/dev/null; then
     source <(ng completion script)
+    cache_completion "ng completion script" "angular" 120
 fi

zsh/external/.external-registry.sh

@@ -1,7 +1,5 @@
 #! /usr/bin/env zsh
 
-source "$HOME/shell-config/zsh/.utils.sh"
-
 function get_all_external_files() {
     find "$1" -type f -not -name ".gitkeep" -print0 | xargs -0 -I {} basename {} | tr '\n' ' '
 }