Claude/optimize uninstall performance 0188kr38h28 h piu2 zse2 t8 kl

bin/benchmark_uninstall.sh

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+#!/bin/bash
+# Fub Uninstaller Performance Benchmark
+# Tests scanning performance with various optimizations
+
+set -euo pipefail
+
+# Get script directory
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+CACHE_FILE="$HOME/.cache/fub/apps_list.txt"
+
+# Colors
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+YELLOW='\033[1;33m'
+CYAN='\033[0;36m'
+NC='\033[0m'
+
+echo "╔════════════════════════════════════════════════════════════╗"
+echo "║   Fub Uninstaller Performance Benchmark (Ubuntu 24.04)    ║"
+echo "╚════════════════════════════════════════════════════════════╝"
+echo ""
+
+# System information
+echo -e "${CYAN}System Information:${NC}"
+echo "  OS: $(lsb_release -ds 2>/dev/null || echo "Unknown")"
+echo "  Kernel: $(uname -r)"
+echo "  CPU: $(grep "model name" /proc/cpuinfo | head -1 | cut -d: -f2 | xargs)"
+echo "  CPU Cores: $(nproc)"
+echo "  RAM: $(free -h | awk '/^Mem:/ {print $2}')"
+echo ""
+
+# Package counts
+echo -e "${CYAN}Installed Packages:${NC}"
+APT_COUNT=$(dpkg -l | grep "^ii" | wc -l)
+SNAP_COUNT=$(snap list 2>/dev/null | tail -n +2 | wc -l || echo 0)
+FLATPAK_COUNT=$(flatpak list --app 2>/dev/null | wc -l || echo 0)
+APPIMAGE_COUNT=$(find "$HOME" -name "*.AppImage" -type f 2>/dev/null | wc -l || echo 0)
+
+echo "  APT packages: $APT_COUNT"
+echo "  Snap packages: $SNAP_COUNT"
+echo "  Flatpak apps: $FLATPAK_COUNT"
+echo "  AppImage files: $APPIMAGE_COUNT"
+echo ""
+
+# Benchmark function
+benchmark_scan() {
+    local label="$1"
+    local clear_cache="${2:-false}"
+
+    # Clear cache if requested
+    if [[ "$clear_cache" == "true" ]]; then
+        rm -f "$CACHE_FILE"
+    fi
+
+    echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+    echo -e "${YELLOW}Test: $label${NC}"
+    echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+
+    # Get start time
+    local start_time=$(date +%s.%N)
+
+    # Source the script functions
+    source "$SCRIPT_DIR/../lib/common.sh"
+    source "$SCRIPT_DIR/../lib/package_managers.sh"
+
+    # Run the scan
+    mkdir -p "$(dirname "$CACHE_FILE")"
+    source "$SCRIPT_DIR/uninstall.sh" >/dev/null 2>&1 <<EOF || true
+EOF
+
+    # Use scan function directly
+    if [[ "$clear_cache" == "true" ]]; then
+        scan_all_applications "$CACHE_FILE" "true" 2>&1 | grep -v "^$" || true
+    else
+        scan_all_applications "$CACHE_FILE" "false" 2>&1 | grep -v "^$" || true
+    fi
+
+    # Get end time
+    local end_time=$(date +%s.%N)
+
+    # Calculate duration
+    local duration=$(echo "$end_time - $start_time" | bc)
+
+    # Get result count
+    local pkg_count=$(wc -l < "$CACHE_FILE" 2>/dev/null || echo 0)
+
+    echo ""
+    echo -e "  ${GREEN}✓${NC} Duration: ${GREEN}${duration}s${NC}"
+    echo -e "  ${GREEN}✓${NC} Packages found: ${GREEN}${pkg_count}${NC}"
+
+    # Check cache status
+    if [[ -f "$CACHE_FILE" ]]; then
+        local cache_size=$(du -h "$CACHE_FILE" | awk '{print $1}')
+        echo -e "  ${GREEN}✓${NC} Cache size: ${GREEN}${cache_size}${NC}"
+    fi
+
+    echo ""
+}
+
+# Run benchmarks
+echo -e "${CYAN}═══════════════════════════════════════════════════════════${NC}"
+echo -e "${CYAN}Starting Performance Tests...${NC}"
+echo -e "${CYAN}═══════════════════════════════════════════════════════════${NC}"
+echo ""
+
+# Test 1: First scan (no cache)
+benchmark_scan "First scan (cold cache, parallel mode)" "true"
+
+sleep 1
+
+# Test 2: Cached scan
+benchmark_scan "Second scan (warm cache)" "false"
+
+sleep 1
+
+# Test 3: Force refresh
+benchmark_scan "Force refresh (cache bypass)" "true"
+
+sleep 1
+
+# Test 4: Cached again
+benchmark_scan "Fourth scan (warm cache again)" "false"
+
+echo ""
+echo -e "${GREEN}╔════════════════════════════════════════════════════════════╗${NC}"
+echo -e "${GREEN}║                  Benchmark Complete!                       ║${NC}"
+echo -e "${GREEN}╚════════════════════════════════════════════════════════════╝${NC}"
+echo ""
+
+# Summary
+echo -e "${CYAN}Summary:${NC}"
+echo "  Cache location: $CACHE_FILE"
+if [[ -f "$CACHE_FILE" ]]; then
+    echo "  Cache age: $(stat -c "%y" "$CACHE_FILE" | awk '{print $1, $2}')"
+    echo "  Cache size: $(du -h "$CACHE_FILE" | awk '{print $1}')"
+fi
+echo ""
+
+echo -e "${YELLOW}Performance Tips:${NC}"
+echo "  • First scan builds cache (2-10 seconds)"
+echo "  • Cached scans are instant (<1 second)"
+echo "  • Cache expires after 5 minutes"
+echo "  • Use --refresh to force cache rebuild"
+echo ""
+
+echo -e "${GREEN}Run the uninstaller with:${NC}"
+echo "  ./bin/uninstall.sh"
+echo ""