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Mole/lib/optimize/tasks.sh
2025-12-28 11:39:34 +00:00

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#!/bin/bash
# Optimization Tasks
set -euo pipefail
# Configuration constants
# MOLE_TM_THIN_TIMEOUT: Max seconds to wait for tmutil thinning (default: 180)
# MOLE_TM_THIN_VALUE: Bytes to thin for local snapshots (default: 9999999999)
# MOLE_MAIL_DOWNLOADS_MIN_KB: Minimum size in KB before cleaning Mail attachments (default: 5120)
# MOLE_MAIL_AGE_DAYS: Minimum age in days for Mail attachments to be cleaned (default: 30)
readonly MOLE_TM_THIN_TIMEOUT=180
readonly MOLE_TM_THIN_VALUE=9999999999
flush_dns_cache() {
sudo dscacheutil -flushcache 2> /dev/null && sudo killall -HUP mDNSResponder 2> /dev/null
}
# Rebuild databases and flush caches
opt_system_maintenance() {
local -a results=()
local darwin_major
darwin_major=$(get_darwin_major)
if flush_dns_cache; then
results+=("${GREEN}${NC} DNS cache flushed")
fi
local spotlight_status
spotlight_status=$(mdutil -s / 2> /dev/null || echo "")
if echo "$spotlight_status" | grep -qi "Indexing disabled"; then
results+=("${GRAY}${ICON_EMPTY}${NC} Spotlight indexing disabled")
else
results+=("${GREEN}${NC} Spotlight index verified")
fi
for result in "${results[@]}"; do
echo -e " $result"
done
}
# Refresh Finder and Safari caches
opt_cache_refresh() {
qlmanage -r cache > /dev/null 2>&1 || true
qlmanage -r > /dev/null 2>&1 || true
local refreshed=0
local -a cache_targets=(
"$HOME/Library/Caches/com.apple.QuickLook.thumbnailcache"
"$HOME/Library/Caches/com.apple.iconservices.store"
"$HOME/Library/Caches/com.apple.iconservices"
"$HOME/Library/Caches/com.apple.Safari/WebKitCache"
"$HOME/Library/Caches/com.apple.Safari/Favicon"
)
for target_path in "${cache_targets[@]}"; do
if [[ -e "$target_path" ]]; then
if ! should_protect_path "$target_path"; then
if safe_remove "$target_path" true; then
((refreshed++))
fi
fi
fi
done
echo -e " ${GREEN}${NC} QuickLook thumbnails refreshed"
echo -e " ${GREEN}${NC} Icon services cache rebuilt"
echo -e " ${GREEN}${NC} Safari web cache optimized"
}
# Run periodic maintenance scripts
opt_maintenance_scripts() {
if run_with_timeout 120 sudo newsyslog > /dev/null 2>&1; then
echo -e " ${GREEN}${NC} System logs rotated"
else
echo -e " ${YELLOW}!${NC} Failed to rotate logs"
fi
}
# Refresh wireless interfaces
opt_radio_refresh() {
# Only restart Bluetooth service, do NOT delete pairing information
if sudo pkill -HUP bluetoothd 2> /dev/null; then
echo -e " ${GREEN}${NC} Bluetooth controller refreshed"
fi
local wifi_interface
wifi_interface=$(networksetup -listallhardwareports | awk '/Wi-Fi/{getline; print $2}' | head -1)
if [[ -n "$wifi_interface" ]]; then
if sudo bash -c "trap '' INT TERM; ifconfig '$wifi_interface' down; sleep 1; ifconfig '$wifi_interface' up" 2> /dev/null; then
echo -e " ${GREEN}${NC} Wi-Fi interface reset"
fi
fi
# Restart AirDrop interface
sudo bash -c "trap '' INT TERM; ifconfig awdl0 down; ifconfig awdl0 up" 2> /dev/null || true
echo -e " ${GREEN}${NC} AirDrop service restarted"
}
# Saved state: remove OLD app saved states (7+ days)
opt_saved_state_cleanup() {
local state_dir="$HOME/Library/Saved Application State"
if [[ -d "$state_dir" ]]; then
while IFS= read -r -d '' state_path; do
if should_protect_path "$state_path"; then
continue
fi
safe_remove "$state_path" true > /dev/null 2>&1
done < <(command find "$state_dir" -type d -name "*.savedState" -mtime "+$MOLE_SAVED_STATE_AGE_DAYS" -print0 2> /dev/null)
fi
echo -e " ${GREEN}${NC} App saved states optimized"
}
# Swap cleanup: reset swap files
opt_swap_cleanup() {
if sudo launchctl unload /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist > /dev/null 2>&1; then
sudo launchctl load /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist > /dev/null 2>&1 || true
echo -e " ${GREEN}${NC} Swap cache reset"
else
echo -e " ${YELLOW}!${NC} Failed to reset swap"
fi
}
# Startup cache: rebuild kernel caches (handled automatically by modern macOS)
opt_startup_cache() {
echo -e " ${GRAY}-${NC} Startup cache (auto-managed by macOS)"
}
# Local snapshots: thin Time Machine snapshots
opt_local_snapshots() {
if ! command -v tmutil > /dev/null 2>&1; then
echo -e "${YELLOW}!${NC} tmutil not available on this system"
return
fi
local before after
before=$(count_local_snapshots)
if [[ "$before" -eq 0 ]]; then
echo -e "${GREEN}${ICON_SUCCESS}${NC} No local snapshots to thin"
return
fi
if [[ -t 1 ]]; then
start_inline_spinner ""
fi
local success=false
local exit_code=0
set +e
run_with_timeout "$MOLE_TM_THIN_TIMEOUT" sudo tmutil thinlocalsnapshots / "$MOLE_TM_THIN_VALUE" 4 > /dev/null 2>&1
exit_code=$?
set -e
if [[ "$exit_code" -eq 0 ]]; then
success=true
fi
if [[ -t 1 ]]; then
stop_inline_spinner
fi
after=$(count_local_snapshots)
local removed=$((before - after))
[[ "$removed" -lt 0 ]] && removed=0
if [[ "$success" == "true" ]]; then
echo -e "${GREEN}${ICON_SUCCESS}${NC} Removed $removed snapshots (remaining: $after)"
elif [[ "$exit_code" -eq 124 ]]; then
echo -e "${YELLOW}!${NC} Timed out after ${MOLE_TM_THIN_TIMEOUT}s"
else
echo -e "${YELLOW}!${NC} Failed with exit code $exit_code"
fi
}
# Fix broken system configurations
# Repairs corrupted preference files and broken login items
opt_fix_broken_configs() {
local broken_prefs=$(fix_broken_preferences)
local broken_items=$(fix_broken_login_items)
if [[ $broken_prefs -gt 0 ]]; then
echo -e " ${GREEN}${NC} Repaired $broken_prefs corrupted preference files"
else
echo -e " ${GREEN}${NC} All preference files valid"
fi
if [[ $broken_items -gt 0 ]]; then
echo -e " ${GREEN}${NC} Removed $broken_items broken login items"
else
echo -e " ${GREEN}${NC} All login items functional"
fi
}
# Network cache optimization
opt_network_optimization() {
flush_dns_cache
echo -e " ${GREEN}${NC} DNS cache refreshed"
if sudo arp -d -a > /dev/null 2>&1; then
echo -e " ${GREEN}${NC} ARP cache rebuilt"
fi
echo -e " ${GREEN}${NC} mDNSResponder optimized"
}
# SQLite database optimization
# Runs VACUUM on safe user-level databases to reduce size and improve performance
# Only operates on databases that are not in use and meet size threshold
opt_sqlite_vacuum() {
local optimized_count=0
local total_saved_kb=0
local min_size_kb=1024 # Only optimize databases larger than 1MB
# List of safe databases to optimize
# Exclude critical system databases like Mail, Messages, Photos
local -a safe_databases=(
"$HOME/Library/Safari/History.db"
"$HOME/Library/Safari/CloudTabs.db"
)
if [[ -t 1 ]]; then
MOLE_SPINNER_PREFIX=" " start_inline_spinner "Scanning databases..."
fi
for db_path in "${safe_databases[@]}"; do
# Check if database exists
[[ ! -f "$db_path" ]] && continue
# Check if it's a SQLite database
if ! file "$db_path" 2> /dev/null | grep -q "SQLite"; then
continue
fi
# Check size threshold
local db_size_kb
db_size_kb=$(get_path_size_kb "$db_path")
[[ $db_size_kb -lt $min_size_kb ]] && continue
# Check if database is in use
if lsof "$db_path" > /dev/null 2>&1; then
debug_log "Skipping $db_path - in use"
continue
fi
# Check disk space (VACUUM needs ~2x database size as temporary space)
local free_space_kb
free_space_kb=$(df -k "$(dirname "$db_path")" | tail -1 | awk '{print $4}')
if [[ $free_space_kb -lt $((db_size_kb * 2)) ]]; then
debug_log "Skipping $db_path - insufficient disk space"
continue
fi
# Verify database integrity before VACUUM
if ! sqlite3 "$db_path" "PRAGMA integrity_check;" 2> /dev/null | grep -q "ok"; then
debug_log "Skipping $db_path - integrity check failed"
continue
fi
# Get size before optimization
local size_before=$db_size_kb
# Perform VACUUM with error handling
if sqlite3 "$db_path" "VACUUM;" 2> /dev/null; then
# Verify database integrity after VACUUM
if ! sqlite3 "$db_path" "PRAGMA integrity_check;" 2> /dev/null | grep -q "ok"; then
debug_log "Warning: $db_path integrity check failed after VACUUM"
continue
fi
# Get size after optimization
local size_after
size_after=$(get_path_size_kb "$db_path")
local saved_kb=$((size_before - size_after))
if [[ $saved_kb -gt 0 ]]; then
((optimized_count++))
((total_saved_kb += saved_kb))
fi
else
debug_log "Failed to VACUUM $db_path"
fi
done
if [[ -t 1 ]]; then
stop_inline_spinner
fi
if [[ $optimized_count -gt 0 ]]; then
local saved_human=$(bytes_to_human "$((total_saved_kb * 1024))")
echo -e " ${GREEN}${NC} Optimized $optimized_count databases ($saved_human saved)"
else
echo -e " ${GREEN}${NC} Databases already optimized"
fi
}
# Clean Spotlight user caches
# Execute optimization by action name
execute_optimization() {
local action="$1"
local path="${2:-}"
case "$action" in
system_maintenance) opt_system_maintenance ;;
cache_refresh) opt_cache_refresh ;;
maintenance_scripts) opt_maintenance_scripts ;;
radio_refresh) opt_radio_refresh ;;
saved_state_cleanup) opt_saved_state_cleanup ;;
swap_cleanup) opt_swap_cleanup ;;
startup_cache) opt_startup_cache ;;
local_snapshots) opt_local_snapshots ;;
fix_broken_configs) opt_fix_broken_configs ;;
network_optimization) opt_network_optimization ;;
sqlite_vacuum) opt_sqlite_vacuum ;;
*)
echo -e "${YELLOW}${ICON_ERROR}${NC} Unknown action: $action"
return 1
;;
esac
}