INSTALL APK

install-apk.sh

#!/usr/bin/env bash
#
# install-apk.sh - Install APK files via ADB
# Description: Robust APK installer with device detection, batch installation,
#              and error handling
#

set -e  # Exit on error

# ============================================================================
# Configuration
# ============================================================================

readonly SCRIPT_NAME=$(basename "$0")
readonly ADB_TIMEOUT=5000  # milliseconds

# Colors for output
readonly COLOR_RED='\033[0;31m'
readonly COLOR_GREEN='\033[0;32m'
readonly COLOR_YELLOW='\033[1;33m'
readonly COLOR_BLUE='\033[0;34m'
readonly COLOR_RESET='\033[0m'

# ============================================================================
# Helper Functions
# ============================================================================

log() {
    echo -e "${COLOR_BLUE}[INFO]${COLOR_RESET} $*"
}

success() {
    echo -e "${COLOR_GREEN}[SUCCESS]${COLOR_RESET} $*"
}

warn() {
    echo -e "${COLOR_YELLOW}[WARNING]${COLOR_RESET} $*"
}

error() {
    echo -e "${COLOR_RED}[ERROR]${COLOR_RESET} $*" >&2
}

fatal() {
    error "$*"
    exit 1
}

# ============================================================================
# ADB Functions
# ============================================================================

check_adb_installed() {
    if ! command -v adb &> /dev/null; then
        fatal "ADB not found. Please install Android SDK Platform Tools."
    fi
    log "ADB found: $(adb version | head -n1)"
}

start_adb_server() {
    log "Starting ADB server..."
    adb start-server &> /dev/null || warn "Failed to start ADB server"
}

list_devices() {
    local devices
    devices=$(adb devices | grep -v "List of devices" | grep "device$" | cut -f1)
    echo "$devices"
}

count_devices() {
    local devices="$1"
    echo "$devices" | grep -c . || echo "0"
}

select_device() {
    local devices
    devices=$(list_devices)
    local device_count
    device_count=$(count_devices "$devices")
    
    if [ "$device_count" -eq 0 ]; then
        fatal "No devices found. Please connect a device and enable USB debugging."
    fi
    
    if [ "$device_count" -eq 1 ]; then
        echo "$devices"
        return 0
    fi
    
    # Multiple devices - let user choose
    log "Multiple devices detected:"
    echo ""
    
    local index=1
    while IFS= read -r device; do
        local model=$(adb -s "$device" shell getprop ro.product.model 2>/dev/null | tr -d '\r')
        local android=$(adb -s "$device" shell getprop ro.build.version.release 2>/dev/null | tr -d '\r')
        echo "  [$index] $device - $model (Android $android)"
        ((index++))
    done <<< "$devices"
    
    echo ""
    read -p "Select device number: " choice
    
    local selected_device
    selected_device=$(echo "$devices" | sed -n "${choice}p")
    
    if [ -z "$selected_device" ]; then
        fatal "Invalid selection"
    fi
    
    echo "$selected_device"
}

get_device_info() {
    local device="$1"
    local model=$(adb -s "$device" shell getprop ro.product.model 2>/dev/null | tr -d '\r')
    local android=$(adb -s "$device" shell getprop ro.build.version.release 2>/dev/null | tr -d '\r')
    local sdk=$(adb -s "$device" shell getprop ro.build.version.sdk 2>/dev/null | tr -d '\r')
    
    log "Device: $model (Android $android / SDK $sdk)"
}

# ============================================================================
# APK Installation Functions
# ============================================================================

validate_apk() {
    local apk_file="$1"
    
    if [ ! -f "$apk_file" ]; then
        error "File not found: $apk_file"
        return 1
    fi
    
    if [[ ! "$apk_file" =~ \.apk$ ]]; then
        error "Not an APK file: $apk_file"
        return 1
    fi
    
    return 0
}

install_single_apk() {
    local device="$1"
    local apk_file="$2"
    local install_flags="${3:-}"
    
    log "Installing: $(basename "$apk_file")"
    
    local output
    if output=$(adb -s "$device" install ${install_flags} "$apk_file" 2>&1); then
        if echo "$output" | grep -q "Success"; then
            success "Installed: $(basename "$apk_file")"
            return 0
        else
            error "Installation failed: $output"
            return 1
        fi
    else
        error "ADB error: $output"
        return 1
    fi
}

install_multiple_apks() {
    local device="$1"
    local install_flags="$2"
    shift 2
    local apk_files=("$@")
    
    local total=${#apk_files[@]}
    local installed=0
    local failed=0
    
    log "Installing $total APK(s)..."
    echo ""
    
    for apk_file in "${apk_files[@]}"; do
        if validate_apk "$apk_file"; then
            if install_single_apk "$device" "$apk_file" "$install_flags"; then
                ((installed++))
            else
                ((failed++))
            fi
        else
            ((failed++))
        fi
        echo ""
    done
    
    echo "================================"
    success "Installed: $installed"
    [ $failed -gt 0 ] && error "Failed: $failed" || true
    echo "================================"
}

# ============================================================================
# Uninstall Functions
# ============================================================================

uninstall_package() {
    local device="$1"
    local package_name="$2"
    
    log "Uninstalling: $package_name"
    
    local output
    if output=$(adb -s "$device" uninstall "$package_name" 2>&1); then
        if echo "$output" | grep -q "Success"; then
            success "Uninstalled: $package_name"
            return 0
        else
            error "Uninstall failed: $output"
            return 1
        fi
    else
        error "ADB error: $output"
        return 1
    fi
}

# ============================================================================
# Utility Functions
# ============================================================================

list_installed_packages() {
    local device="$1"
    local filter="${2:-}"
    
    log "Listing installed packages..."
    
    if [ -z "$filter" ]; then
        adb -s "$device" shell pm list packages | sed 's/package://'
    else
        adb -s "$device" shell pm list packages | grep "$filter" | sed 's/package://'
    fi
}

show_usage() {
    cat <<EOF
Usage: $SCRIPT_NAME [OPTIONS] <APK_FILE(s)>

Install APK files to Android device via ADB

OPTIONS:
    -r, --replace       Replace existing application
    -d, --downgrade     Allow version code downgrade
    -g, --grant         Grant all runtime permissions
    -t, --test          Install as test package
    -s, --system        Install to system partition (requires root)
    
    -u, --uninstall     Uninstall package by name
    -l, --list          List installed packages
    
    -h, --help          Show this help message

EXAMPLES:
    # Install single APK
    $SCRIPT_NAME app.apk
    
    # Install multiple APKs
    $SCRIPT_NAME app1.apk app2.apk app3.apk
    
    # Install all APKs in directory
    $SCRIPT_NAME *.apk
    
    # Replace existing app
    $SCRIPT_NAME -r app.apk
    
    # Install with all permissions granted
    $SCRIPT_NAME -g app.apk
    
    # Uninstall package
    $SCRIPT_NAME -u com.example.app
    
    # List installed packages
    $SCRIPT_NAME -l
    $SCRIPT_NAME -l chrome  # Filter by name

EOF
}

# ============================================================================
# Argument Parsing
# ============================================================================

parse_arguments() {
    local install_flags=""
    local mode="install"
    local package_name=""
    local filter=""
    local apk_files=()
    
    if [ $# -eq 0 ]; then
        show_usage
        exit 0
    fi
    
    while [ $# -gt 0 ]; do
        case "$1" in
            -h|--help)
                show_usage
                exit 0
                ;;
            -r|--replace)
                install_flags="${install_flags} -r"
                shift
                ;;
            -d|--downgrade)
                install_flags="${install_flags} -d"
                shift
                ;;
            -g|--grant)
                install_flags="${install_flags} -g"
                shift
                ;;
            -t|--test)
                install_flags="${install_flags} -t"
                shift
                ;;
            -s|--system)
                install_flags="${install_flags} -s"
                shift
                ;;
            -u|--uninstall)
                mode="uninstall"
                package_name="$2"
                shift 2
                ;;
            -l|--list)
                mode="list"
                filter="${2:-}"
                shift
                [ -n "$filter" ] && shift
                ;;
            -*)
                fatal "Unknown option: $1"
                ;;
            *)
                apk_files+=("$1")
                shift
                ;;
        esac
    done
    
    # Export for use in main
    export INSTALL_FLAGS="$install_flags"
    export MODE="$mode"
    export PACKAGE_NAME="$package_name"
    export FILTER="$filter"
    export APK_FILES=("${apk_files[@]}")
}

# ============================================================================
# Main Execution
# ============================================================================

main() {
    echo "=== APK Installer via ADB ==="
    echo ""
    
    # Parse command line arguments
    parse_arguments "$@"
    
    # Check ADB installation
    check_adb_installed
    
    # Start ADB server
    start_adb_server
    
    # Select device
    local device
    device=$(select_device)
    
    echo ""
    get_device_info "$device"
    echo ""
    
    # Execute based on mode
    case "$MODE" in
        install)
            if [ ${#APK_FILES[@]} -eq 0 ]; then
                fatal "No APK files specified"
            fi
            install_multiple_apks "$device" "$INSTALL_FLAGS" "${APK_FILES[@]}"
            ;;
        uninstall)
            if [ -z "$PACKAGE_NAME" ]; then
                fatal "No package name specified"
            fi
            uninstall_package "$device" "$PACKAGE_NAME"
            ;;
        list)
            list_installed_packages "$device" "$FILTER"
            ;;
    esac
    
    echo ""
    log "Operation completed"
}

# Run main function
main "$@"

exit 0

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