mirror of
https://github.com/richb-hanover/OpenWrtScripts.git
synced 2026-03-30 10:44:32 +02:00
346 lines
10 KiB
Bash
Executable file
346 lines
10 KiB
Bash
Executable file
#! /bin/sh
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# Write a list of packages currently installed or read that list,
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# presumably after a firmware upgrade, in order to reinstall all packages
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# on that list not currently installed
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#
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# (c) 2013 Malte Forkel <malte.forkel@berlin.de>
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#
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# Originally found on OpenWrt forums at:
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# https://forum.openwrt.org/viewtopic.php?pid=194478#p194478
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# Thanks, too, to hnyman for important comments on this script
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#
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# Version history
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# 0.2.3 - added support for selective IPK caching with version retention control for offline recovery installs
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# 0.2.2 - editorial tweaks to help text -richb-hanvover
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# 0.2.1 - fixed typo in awk script for dependency detection
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# 0.2.0 - command interface
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# 0.1.0 - Initial release
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PCKGLIST=/etc/config/opkg.installed # Default package list
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IPK_CACHE_LIST="/etc/config/opkg.ipk_cache_list" # List of packages to cache IPKs for
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IPK_CACHE_DIR="/etc/opkg/ipk_cache" # Directory to store cached IPK files
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IPK_CACHE_ALL_VERSIONS=false # Cache only the latest IPK per package (default). Set to true to keep all versions.
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SCRIPTNAME=$(basename $0) # Name of this script
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COMMAND="" # Command to execute
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INSTLIST=$(mktemp) # List of packages to install
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PREQLIST=$(mktemp) # List of prerequisite packages
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UPDATE=false # Update the package database
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OPKGOPT="" # Options for opkg calls
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VERBOSE=false # Be verbose
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DEBUG_TRACE=false # Set to true to enable shell debug tracing (set -x)
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cleanup () {
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rm -f $INSTLIST $PREQLIST
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}
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echo_usage () {
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echo \
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"Usage: $(basename $0) [options...] command [packagelist]
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Available commands:
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help print this help text
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write write a list of currently installed packages
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install install packages on list not currently installed
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script output a script to install missing packages
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cache-ipks download .ipk files for specific packages to a local cache
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Options:
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-u update the package database
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-t test only, execute opkg commands with --noaction
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-v be verbose
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-x enable shell debug tracing (set -x)
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Configuration:
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IPK_CACHE_ALL_VERSIONS in script controls whether to cache all .ipk versions or just the latest.
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Default is to cache only the latest. Set IPK_CACHE_ALL_VERSIONS=true to retain all versions.
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Warning: caching all versions may consume significant storage and must be cleaned manually.
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$SCRIPTNAME can be used to re-install those packages that were installed
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before a firmware upgrade but are not part of the new firmware image.
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Before the firmware upgrade, execute
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$SCRIPTNAME [options...] write [packagelist]
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to save the list of currently installed packages. Save the package list in a
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place that will not be wiped out by the firmware upgrade. The default package list
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is '$PCKGLIST', which works well for normal sysupgrades. Or copy that file to
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another computer before the upgrade if you are not preserving the settings.
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After the firmware upgrade, execute
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$SCRIPTNAME [options...] install [packagelist]
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to re-install all packages that were not part of the firmware image.
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By default, the script will use the previously-created '$PCKGLIST'.
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Alternatively, you can execute
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$SCRIPTNAME [options...] script [packagelist]
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to output a shell script that will contain calls to opkg to install those
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missing packages. This might be useful if you want to check which packages
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would be installed or if you want to edit that list.
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In order for this script to work after a firmware upgrade or reboot, the
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opkg database must have been updated. You can use the option -u to do this.
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You can specify the option -t to test what $SCRIPTNAME would do. All calls
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to opkg will be made with the option --noaction. This does not influence
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the call to opkg to write the list of installed packages, though.
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"
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}
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trap cleanup SIGHUP SIGINT SIGTERM EXIT
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# parse command line options
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while getopts "htuvx" OPTS; do
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case $OPTS in
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t ) OPKGOPT="$OPKGOPT --noaction";;
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u ) UPDATE=true;;
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v ) VERBOSE=true;;
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x ) DEBUG_TRACE=true; VERBOSE=true;;
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[h\?*] ) echo_usage; exit 0;;
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esac
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done
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shift $(($OPTIND - 1))
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[ "$DEBUG_TRACE" = true ] && set -x
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# Set the command
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COMMAND=$1
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# Set name of the package list
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if [ "x$2" != "x" ]; then
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PCKGLIST="$2"
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fi
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#
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# Help
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#
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if [ "x$COMMAND" == "x" ]; then
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echo "No command specified."
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echo ""
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COMMAND="help"
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fi
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if [ $COMMAND == "help" ]; then
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echo_usage
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exit 0
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fi
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#
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# Write
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#
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if [ $COMMAND = "write" ]; then
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$VERBOSE && echo "Saving package list to $PCKGLIST"
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# NOTE: option --noaction not valid for list-installed
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opkg list-installed > "$PCKGLIST"
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exit 0
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fi
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#
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# Cache IPKs
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#
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if [ $COMMAND = "cache-ipks" ]; then
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if [ ! -f "$IPK_CACHE_LIST" ]; then
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echo "Error: IPK cache list '$IPK_CACHE_LIST' not found."
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echo "Please create this file and list the packages you want to cache (one per line)."
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exit 1
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fi
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if [ ! -d "$IPK_CACHE_DIR" ]; then
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$VERBOSE && echo "Creating IPK cache directory: $IPK_CACHE_DIR"
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mkdir -p "$IPK_CACHE_DIR" || {
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echo "Error: Could not create IPK cache directory '$IPK_CACHE_DIR'."
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exit 1
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}
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fi
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$VERBOSE && echo "Caching IPK files from list: $IPK_CACHE_LIST to $IPK_CACHE_DIR"
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$VERBOSE && echo "Checking freshness of opkg cache..."
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# Only update if lists are older than 5 minutes
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CACHE_AGE_LIMIT=300 # seconds
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needs_update=false
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for list in /var/opkg-lists/*; do
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if [ ! -f "$list" ] || [ "$(($(date +%s) - $(date -r "$list" +%s)))" -gt "$CACHE_AGE_LIMIT" ]; then
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needs_update=true
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break
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fi
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done
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if $needs_update; then
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$VERBOSE && echo "Running opkg update..."
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opkg update
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$VERBOSE && echo "Finished opkg update"
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else
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echo "Skipping opkg update: cache is fresh"
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fi
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TOTAL=0
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DOWNLOADED=0
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SKIPPED=0
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REMOVED=0
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while read PACKAGE; do
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PACKAGE=$(echo "$PACKAGE" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
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[ -z "$PACKAGE" ] && continue
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TOTAL=$((TOTAL + 1))
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IPK_LATEST_FILENAME=$(opkg info "$PACKAGE" | grep "^Filename:" | awk '{print $2}')
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[ -z "$IPK_LATEST_FILENAME" ] && {
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echo "Warning: Could not find filename for package '$PACKAGE'. Skipping."
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continue
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}
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BASE_PACKAGE_NAME=$(opkg info "$PACKAGE" | grep "^Package:" | awk '{print $2}')
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IPK_LATEST_PATH="$IPK_CACHE_DIR/$IPK_LATEST_FILENAME"
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if ! $IPK_CACHE_ALL_VERSIONS && [ -n "$BASE_PACKAGE_NAME" ]; then
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CACHED_FILES=$(find "$IPK_CACHE_DIR" -maxdepth 1 -type f -name "${BASE_PACKAGE_NAME}_*.ipk")
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for CACHED_FILE in $CACHED_FILES; do
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CACHED_FILENAME=$(basename "$CACHED_FILE")
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if [ "$CACHED_FILENAME" != "$IPK_LATEST_FILENAME" ]; then
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$VERBOSE && echo "Removing old version of $BASE_PACKAGE_NAME: $CACHED_FILENAME"
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rm -f "$CACHED_FILE" || echo "Warning: Failed to remove $CACHED_FILE"
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REMOVED=$((REMOVED + 1))
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fi
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done
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fi
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if [ -f "$IPK_LATEST_PATH" ]; then
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echo "$PACKAGE is up to date ($IPK_LATEST_FILENAME)"
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SKIPPED=$((SKIPPED + 1))
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else
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$VERBOSE && echo "Downloading $PACKAGE → $IPK_LATEST_FILENAME"
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opkg $OPKGOPT download "$PACKAGE"
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if [ $? -eq 0 ] && [ -f "./$IPK_LATEST_FILENAME" ]; then
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mv "./$IPK_LATEST_FILENAME" "$IPK_LATEST_PATH" || echo "Error: Failed to move downloaded IPK"
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$VERBOSE && echo "Moved to $IPK_CACHE_DIR"
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DOWNLOADED=$((DOWNLOADED + 1))
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else
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echo "Warning: Download failed or file missing for '$PACKAGE'"
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fi
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fi
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done < "$IPK_CACHE_LIST"
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echo ""
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echo "IPK Cache Summary:"
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printf " %-25s %d\n" "Packages scanned:" $TOTAL
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printf " %-25s %d\n" "New downloads:" $DOWNLOADED
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printf " %-25s %d\n" "Older versions removed:" $REMOVED
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printf " %-25s %d\n" "Already up to date:" $SKIPPED
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echo ""
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exit 0
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fi
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#
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# Update
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#
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if $UPDATE; then
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opkg $OPKGOPT update
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fi
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#
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# Check
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#
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if [ $COMMAND == "install" ] || [ $COMMAND == "script" ]; then
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# detect uninstalled packages
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$VERBOSE && [ $COMMAND != "script" ] && echo "Checking packages... "
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cat "$PCKGLIST" | while read PACKAGE SEP VERSION; do
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# opkg status is much faster than opkg info
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# it only returns status of installed packages
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#if ! opkg status $PACKAGE | grep -q "^Status:.* installed"; then
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if [ "x$(opkg status $PACKAGE)" == "x" ]; then
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# collect uninstalled packages
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echo $PACKAGE >> $INSTLIST
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# collect prerequisites
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opkg info "$PACKAGE" |
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awk "/^Depends: / {
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sub(\"Depends: \", \"\");
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gsub(\", \", \"\\n\");
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print >> \"$PREQLIST\";
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}"
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fi
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done
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fi
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#
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# Install or script
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#
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if [ $COMMAND == "install" ]; then
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# install packages
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cat "$INSTLIST" | while read PACKAGE; do
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if grep -q "^$PACKAGE\$" "$PREQLIST"; then
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# prerequisite package, will be installed automatically
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$VERBOSE && echo "$PACKAGE installed automatically"
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else
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# install package
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opkg $OPKGOPT install $PACKAGE
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fi
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done
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elif [ $COMMAND == "script" ]; then
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# output install script
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echo "#! /bin/sh"
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cat "$INSTLIST" | while read PACKAGE; do
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if ! grep -q "^$PACKAGE\$" "$PREQLIST"; then
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echo "opkg install $PACKAGE"
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fi
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done
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else
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echo "Unknown command '$COMMAND'."
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echo ""
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echo_usage
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exit 1
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fi
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# clean up and exit
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exit 0
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