Amended

fish_installer.sh

@@ -1,18 +1,23 @@
 #!/bin/bash
 set -euo pipefail
 
-# ====================== Defaults & Args ======================
+# ====================== Flags ======================
 WITH_TIDE=0
 KEEP_PROMPT=0
+REMOVE_TIDE=0
 VERBOSE=0
 NO_PLUGINS=0
+UPDATE_MODE="prompt"   # prompt | yes | no
 
 while [[ $# -gt 0 ]]; do
   case "$1" in
     --with-tide)       WITH_TIDE=1 ;;
     --keep-prompt)     KEEP_PROMPT=1 ;;
+    --remove-tide)     REMOVE_TIDE=1 ;;
     --verbose)         VERBOSE=1 ;;
     --no-plugins)      NO_PLUGINS=1 ;;
+    --update-check)    UPDATE_MODE="yes" ;;
+    --no-update-check) UPDATE_MODE="no" ;;
     --) shift; break ;;
     *) echo "Unknown option: $1"; exit 1 ;;
   esac
@@ -21,18 +26,17 @@ done
 
 # Default plugin set (safe; no prompt change)
 PLUGINS=("jethrokuan/z" "jorgebucaran/nvm.fish")
-if [[ $WITH_TIDE -eq 1 ]]; then
+[[ $WITH_TIDE -eq 1 ]] && PLUGINS+=("ilancosman/tide")
-  PLUGINS+=("ilancosman/tide")
-fi
 
+# ====================== UI Helpers ======================
 log() { echo -e "• $*"; }
 ok()  { echo -e "✓ $*"; }
 warn(){ echo -e "! $*" >&2; }
 
-# ====================== Progress Bar (single line) ======================
 padright() { printf "%-28s" "$1"; }
 draw_bar() {
   local cur="$1" total="$2" label="$3" width=40
+  (( total == 0 )) && total=1
   local percent=$(( cur * 100 / total ))
   (( percent > 100 )) && percent=100
   local filled=$(( width * cur / total ))
@@ -45,6 +49,17 @@ draw_bar() {
     "$percent"
 }
 
+prompt_yn_tty() {
+  local prompt="${1:-Proceed (y/N): }"
+  local d="${2:-N}" ans=""
+  if [ -r /dev/tty ] && [ -w /dev/tty ]; then
+    read -r -p "$prompt" ans </dev/tty || true
+    [[ ${ans:-$d} =~ ^[Yy]$ ]]
+  else
+    [[ "$d" =~ ^[Yy]$ ]]
+  fi
+}
+
 # ====================== Platform Detect ======================
 detect_platform() {
   if [[ "$OSTYPE" == "darwin"* ]]; then
@@ -93,49 +108,98 @@ install_fish() {
   esac
   ok "Fish installed"
 }
+
+should_check_updates() {
+  case "$UPDATE_MODE" in
+    yes) return 0 ;;
+    no)  return 1 ;;
+    prompt)
+      prompt_yn_tty "Check for Fish updates (may run a repo refresh)? (y/N): " "N"
+      return $? ;;
+  esac
+}
+
 update_fish_if_available() {
   log "Checking Fish updates…"
   case "$PKG_MGR" in
-    apt)   sudo apt update;    apt list --upgradable 2>/dev/null | grep -q "^fish/" && sudo apt install -y fish || true ;;
+    apt)
-    dnf|yum) sudo "$PKG_MGR" check-update || true; "$PKG_MGR" list updates | grep -q "^fish" && sudo "$PKG_MGR" update -y fish || true ;;
+      if should_check_updates; then
-    pacman) sudo pacman -Sy --noconfirm; pacman -Qu | grep -q "^fish" && sudo pacman -S --noconfirm fish || true ;;
+        sudo apt update
-    brew)  brew update;        brew outdated | grep -q "^fish" && brew upgrade fish || true ;;
+        apt list --upgradable 2>/dev/null | grep -q "^fish/" && sudo apt install -y fish || true
+      else
+        ok "Skipped update check"
+      fi
+      ;;
+    dnf|yum)
+      if should_check_updates; then
+        sudo "$PKG_MGR" check-update || true
+        "$PKG_MGR" list updates | grep -q "^fish" && sudo "$PKG_MGR" update -y fish || true
+      else
+        ok "Skipped update check"
+      fi
+      ;;
+    pacman)
+      if should_check_updates; then
+        sudo pacman -Sy --noconfirm
+        pacman -Qu | grep -q "^fish" && sudo pacman -S --noconfirm fish || true
+      else
+        ok "Skipped update check"
+      fi
+      ;;
+    brew)
+      if should_check_updates; then
+        brew update
+        brew outdated | grep -q "^fish" && brew upgrade fish || true
+      else
+        ok "Skipped update check"
+      fi
+      ;;
   esac
   ok "Fish up to date"
 }
 
 # ====================== Fisher & Plugins ======================
 ensure_fisher() {
-  # install Fisher quietly and idempotently
   if fish -c 'functions -q fisher' </dev/null >/dev/null 2>&1; then
     ok "Fisher already present"
-    return
+  else
-  fi
     log "Installing Fisher…"
     fish -c 'curl -sL https://git.io/fisher | source && fisher install jorgebucaran/fisher' </dev/null >/dev/null 2>&1
     ok "Fisher installed"
+  fi
 }
 
 install_plugins() {
   [[ $NO_PLUGINS -eq 1 ]] && { ok "Skipping plugins (per flag)"; return; }
 
-  local total=${#PLUGINS[@]}
+  # Current installed plugins
-  [[ $total -eq 0 ]] && { ok "No plugins requested"; return; }
+  local installed
+  installed="$(fish -c 'fisher list' </dev/null 2>/dev/null || true)"
 
-  if [[ $VERBOSE -eq 1 ]]; then
+  # Determine missing plugins
+  local missing=()
   for p in "${PLUGINS[@]}"; do
+    if ! grep -Fxq "$p" <<<"$installed"; then
+      missing+=("$p")
+    fi
+  done
+
+  # Nothing to do?
+  if [[ ${#missing[@]} -eq 0 ]]; then
+    ok "All requested plugins already installed"
+  else
+    if [[ $VERBOSE -eq 1 ]]; then
+      for p in "${missing[@]}"; do
         echo "Installing (verbose): $p"
         fish -c "fisher install $p" </dev/null
       done
       ok "Plugins installed"
-    return
+    else
-  fi
+      local total=${#missing[@]}
-
       local i=0
-  for p in "${PLUGINS[@]}"; do
+      for p in "${missing[@]}"; do
         i=$((i+1))
         draw_bar "$((i-1))" "$total" "$p"
-    # run install in background and animate until it exits
         ( fish -c "fisher install $p" </dev/null >/dev/null 2>&1 ) &
         pid=$!
         while kill -0 "$pid" 2>/dev/null; do
@@ -146,6 +210,8 @@ install_plugins() {
       done
       echo
       ok "Plugins installed"
+    fi
+  fi
 
   # If Tide installed but user wants to keep default prompt
   if [[ $WITH_TIDE -eq 1 && $KEEP_PROMPT -eq 1 ]]; then
@@ -156,15 +222,40 @@ install_plugins() {
   fi
 }
 
+remove_tide_if_requested() {
+  [[ $REMOVE_TIDE -eq 0 ]] && return
+
+  ensure_fisher  # make sure fisher exists so removal works
+
+  # Only remove if installed
+  if fish -c 'fisher list' </dev/null 2>/dev/null | grep -Fxq "ilancosman/tide"; then
+    log "Removing Tide…"
+    if [[ $VERBOSE -eq 1 ]]; then
+      fish -c "fisher remove ilancosman/tide" </dev/null
+    else
+      fish -c "fisher remove ilancosman/tide" </dev/null >/dev/null 2>&1
+    fi
+  fi
+
+  # Clean any prompt overrides
+  rm -f ~/.config/fish/functions/fish_prompt.fish \
+        ~/.config/fish/conf.d/_tide_init.fish 2>/dev/null || true
+  ok "Tide removed and default prompt restored"
+}
+
 # ====================== Main ======================
 detect_platform
-install_gpg_if_needed
+
 if command -v fish &>/dev/null; then
   ok "Fish already installed"
   update_fish_if_available
 else
+  install_gpg_if_needed
   install_fish
 fi
+
 ensure_fisher
 install_plugins
+remove_tide_if_requested
+
 ok "Fish + Fisher + plugins ready on ${OS}"