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feat: optimize application scanning performance, improve multi-selection robustness

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Tw93
2025-12-22 09:46:10 +08:00
parent a1c8d6aa86
commit f8765ee3d3
7 changed files with 166 additions and 135 deletions
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@@ -67,10 +67,11 @@ format_last_used_summary() {
# Scan applications and collect information
scan_applications() {
# Simplified cache: only check timestamp (24h TTL)
# Application scan with intelligent caching (24h TTL)
# This speeds up repeated scans significantly by caching app metadata
local cache_dir="$HOME/.cache/mole"
local cache_file="$cache_dir/app_scan_cache"
local cache_ttl=86400
local cache_ttl=86400 # 24 hours
local force_rescan="${1:-false}"
mkdir -p "$cache_dir" 2> /dev/null
@@ -78,30 +79,34 @@ scan_applications() {
# Check if cache exists and is fresh
if [[ $force_rescan == false && -f "$cache_file" ]]; then
local cache_age=$(($(date +%s) - $(get_file_mtime "$cache_file")))
[[ $cache_age -eq $(date +%s) ]] && cache_age=86401
[[ $cache_age -eq $(date +%s) ]] && cache_age=86401 # Handle mtime read failure
if [[ $cache_age -lt $cache_ttl ]]; then
# Cache hit - show brief feedback and return cached results
if [[ -t 2 ]]; then
echo -e "${GREEN}Loading from cache...${NC}" >&2
sleep 0.3
sleep 0.3 # Brief pause so user sees the message
fi
echo "$cache_file"
return 0
fi
fi
# Cache miss - perform full scan
local inline_loading=false
if [[ -t 1 && -t 2 ]]; then
inline_loading=true
printf "\033[2J\033[H" >&2
printf "\033[2J\033[H" >&2 # Clear screen for inline loading
fi
local temp_file
temp_file=$(create_temp_file)
# Pre-cache current epoch to avoid repeated date calls
local current_epoch
current_epoch=$(date "+%s")
# First pass: quickly collect all valid app paths and bundle IDs
# This pass does NOT call mdls (slow) - only reads plists (fast)
local -a app_data_tuples=()
local -a app_dirs=(
"/Applications"
@@ -118,35 +123,42 @@ scan_applications() {
app_name=$(basename "$app_path" .app)
# Skip nested apps (e.g. inside Wrapper/ or Frameworks/ of another app)
# Check if parent path component ends in .app (e.g. /Foo.app/Bar.app or /Foo.app/Contents/Bar.app)
# This prevents false positives like /Old.apps/Target.app
local parent_dir
parent_dir=$(dirname "$app_path")
if [[ "$parent_dir" == *".app" || "$parent_dir" == *".app/"* ]]; then
continue
fi
# Get bundle ID (fast plist read, no mdls call yet)
local bundle_id="unknown"
if [[ -f "$app_path/Contents/Info.plist" ]]; then
bundle_id=$(defaults read "$app_path/Contents/Info.plist" CFBundleIdentifier 2> /dev/null || echo "unknown")
fi
# Skip system critical apps
# Skip system critical apps (input methods, system components, etc.)
if should_protect_from_uninstall "$bundle_id"; then
continue
fi
# Store tuple: app_path|app_name|bundle_id
# Display name and metadata will be resolved in parallel later (second pass)
app_data_tuples+=("${app_path}|${app_name}|${bundle_id}")
done < <(command find "$app_dir" -name "*.app" -maxdepth 3 -print0 2> /dev/null)
done
# Second pass: process each app with parallel size calculation
# Second pass: process each app with parallel metadata extraction
# This pass calls mdls (slow) and calculates sizes, but does so in parallel
local app_count=0
local total_apps=${#app_data_tuples[@]}
# Bound parallelism - for metadata queries, can go higher since it's mostly waiting
local max_parallel
max_parallel=$(get_optimal_parallel_jobs "io")
if [[ $max_parallel -lt 8 ]]; then
max_parallel=8
max_parallel=8 # At least 8 for good performance
elif [[ $max_parallel -gt 32 ]]; then
max_parallel=32
max_parallel=32 # Cap at 32 to avoid too many processes
fi
local pids=()
@@ -157,18 +169,25 @@ scan_applications() {
IFS='|' read -r app_path app_name bundle_id <<< "$app_data_tuple"
# Get localized display name
# Get localized display name (moved from first pass for better performance)
# Priority order for name selection (prefer localized names):
# 1. System metadata display name (kMDItemDisplayName) - respects system language
# 2. CFBundleDisplayName - usually localized
# 3. CFBundleName - fallback
# 4. App folder name - last resort
local display_name="$app_name"
if [[ -f "$app_path/Contents/Info.plist" ]]; then
# Try to get localized name from system metadata (best for i18n)
local md_display_name
md_display_name=$(run_with_timeout 0.05 mdls -name kMDItemDisplayName -raw "$app_path" 2> /dev/null || echo "")
# Get bundle names from plist
local bundle_display_name
bundle_display_name=$(plutil -extract CFBundleDisplayName raw "$app_path/Contents/Info.plist" 2> /dev/null)
local bundle_name
bundle_name=$(plutil -extract CFBundleName raw "$app_path/Contents/Info.plist" 2> /dev/null)
# Priority order: MDItemDisplayName > CFBundleDisplayName > CFBundleName
# Select best available name
if [[ -n "$md_display_name" && "$md_display_name" != "(null)" && "$md_display_name" != "$app_name" ]]; then
display_name="$md_display_name"
elif [[ -n "$bundle_display_name" && "$bundle_display_name" != "(null)" ]]; then
@@ -178,19 +197,21 @@ scan_applications() {
fi
fi
# Parallel size calculation
# Calculate app size (in parallel for performance)
local app_size="N/A"
local app_size_kb="0"
if [[ -d "$app_path" ]]; then
# Get size in KB, then format for display
app_size_kb=$(get_path_size_kb "$app_path")
app_size=$(bytes_to_human "$((app_size_kb * 1024))")
fi
# Get last used date
# Get last used date with fallback strategy
local last_used="Never"
local last_used_epoch=0
if [[ -d "$app_path" ]]; then
# Try mdls first with short timeout (0.05s) for accuracy, fallback to mtime for speed
local metadata_date
metadata_date=$(run_with_timeout 0.05 mdls -name kMDItemLastUsedDate -raw "$app_path" 2> /dev/null || echo "")
@@ -198,6 +219,7 @@ scan_applications() {
last_used_epoch=$(date -j -f "%Y-%m-%d %H:%M:%S %z" "$metadata_date" "+%s" 2> /dev/null || echo "0")
fi
# Fallback if mdls failed or returned nothing
if [[ "$last_used_epoch" -eq 0 ]]; then
last_used_epoch=$(get_file_mtime "$app_path")
fi