bash/zenman/zenman.bash

   1 #!/bin/bash
   2 #BANNER#######################################
   3 echo -n '
   4  ____  ____  __ _  _  _   __   __ _
   5 (__  )(  __)(  ( \( \/ ) / _\ (  ( \
   6  / _/  ) _) /    // \/ \/    \/    /
   7 (____)(____)\_)__)\_)(_/\_/\_/\_)__) v1.8
   8
   9   Zenity based frontend for pacman
  10   <~Harvie (http://blog.harvie.cz)
  11   2oo9
  12
  13 ';
  14
  15 #HELP/FEATURES################################
  16 if [ "$1" == '--help' ]; then
  17 cat << END
  18 HELP/FEATURES:
  19 - note this script is not much secure since it uses gksu to execute user defined scripts
  20         - this is not good idea for server, but it should be OK for personal workstation
  21         - root rights can be obtained by gksu anyway
  22         - to defeat this risk please do not use 'remember password' in gksu
  23 - zenman --help prints this help
  24 - when zenman started, kills last zenman runned by this user
  25         - you can kill zenman by zenman --stop (click on tray icon or wait after this)
  26         - last pid is stored in ~/.config/zenman/zenman.pid
  27 - shows splashscreen (can be disabled...)
  28 - shows tray icon for each state (on mouse over shows state)
  29         - system is up to date
  30         - refreshing pacman database
  31         - updates available
  32 - shows notification when updates available and listing them
  33         - optionally can notify also using speech output
  34 - clicking on icon will begin upgrade in new xterm
  35         - this is disabled only when refreshing
  36         - if pacman db is locked it will be automaticaly unlocked
  37                 - only if there is any pacman related process running
  38                 - if there is some pacman related operation, error message appears
  39 - auto refreshing of pacman db is disabled (somebody will want to use cron)
  40 - all settings are hardcoded to zenman (/usr/bin/zenman)
  41   - all settings can be overrided
  42                 - system wide: /etc/zenman.conf
  43                 - single user only: ~/.config/zenman/zenman.conf
  44                 - you can also write your own translation to this files
  45
  46 TODO:
  47 ( Don't shy and get involved! ;o)
  48 - Bugtracking/Bugfixing
  49 - Port to another package managers
  50   - apt-zen (apt-get)
  51   - zenmerge (emerge)
  52   - ipkg-zen (ipkg)
  53   - etc...
  54 - Localization to your native language
  55 END
  56 exit;
  57 fi;
  58
  59 #SETTINGS#####################################
  60 #main#############################
  61     zenman_caption='ZenMan';
  62    zenman_interval=$[10*60];
  63      zenman_splash=true;
  64 zenman_autorefresh=false;
  65      zenman_speech=true;
  66   zenman_configdir=~/.config/zenman;
  67         zenman_pid="$zenman_configdir/zenman.pid";
  68    zenman_true_ico='/usr/share/icons/gnome/48x48/status/software-update-urgent.png'; #software-update-available.svg
  69   zenman_false_ico='/usr/share/icons/gnome/48x48/emotes/face-cool.png';
  70 zenman_refresh_ico='/usr/share/icons/gnome/48x48/actions/view-refresh.png';
  71
  72 #files/commands###################
  73               gksu='gksu'; #gksu/gksudo/...
  74             pacman='/usr/bin/pacman'; #want to use pacman-color, yaourt or powerpill instead?
  75              xterm='/usr/bin/xterm'; #xterm/...
  76             espeak='/usr/bin/espeak' #espeak (for spoken notification)
  77     pacman_refresh='-Syuw'; # -Sy ?
  78     pacman_upgrade='-Syu'; # -Syuf ?
  79       pacman_check='-Qu';
  80        pacman_lock='/var/lib/pacman/db.lck'; #file to delete, when pacman locked (only if not running)
  81
  82 #Translate here###################
  83        zenman_true='New package(s) found! ;-)\n\nPacman output follows:\n';
  84       zenman_false='No packages to update. ;-(';
  85  zenman_refreshing='Refreshing pacman database. ;-) Please wait...';
  86       zenman_usage="[i] $0 --stop to kill zenman\n[i] $0 --help to show help\n"
  87     zenman_upgrade="[*] ZenMan will now execute full system upgrade! ;-)\n\n'$pacman' '$pacman_upgrade'\n\n";
  88       zenman_close='[*] Press [ENTER] to close window...';
  89      zenman_config='[*] Loading configuration from: ';
  90        zenman_done='[DONE]';
  91      zenman_locked="ZenMan can't execute system upgrade! ;-(
  92 Please stop all pacman related applications and try again.";
  93       zenman_start="ZenMan started! ;-)
  94 by: Harvie 2oo9
  95 For more informations please visit:
  96 http://blog.harvie.cz/";
  97
  98 #voice
  99       espeak_voice='en'; #see: espeak --voices
 100      espeak_volume='200'; #0-200
 101        speech_true='New packages found!';
 102
 103 #INIT#########################################
 104 if [ "$2" != '' ]; then zenman_configdir="$2"; fi; #when called with --upgrade
 105 mkdir -p "$zenman_configdir"
 106 touch "$zenman_configdir/zenman.conf"
 107 #read configuration files (can contain localization also)...
 108 for i in\
 109         '/etc/zenman.conf'\
 110         "$zenman_configdir/zenman.conf"\
 111 ; do
 112         echo "$zenman_config" "$i";
 113         source "$i" >/dev/null 2>&1;
 114 done;
 115 if [ "$2" != '' ]; then zenman_configdir="$2"; fi; #when called with --upgrade
 116
 117 #fallback icons
 118    if [ ! -e "$zenman_true_ico" ]; then zenman_true_ico='warning'; fi;
 119   if [ ! -e "$zenman_false_ico" ]; then zenman_false_ico='info'; fi;
 120 if [ ! -e "$zenman_refresh_ico" ]; then zenman_false_ico='question'; fi;
 121
 122
 123 #CODE#########################################
 124 #pid
 125 if [ -e "$zenman_pid" ]; then
 126         kill $(cat "$zenman_pid") >/dev/null 2>&1;
 127         kill -KILL $(cat "$zenman_pid") >/dev/null 2>&1;
 128 fi;
 129 if [ "$1" == '--stop' ]; then
 130         echo '[!] exit';
 131         exit;
 132 fi;
 133 echo "$$" > "$zenman_pid";
 134
 135 #this procedure is called internally...
 136 if [ "$1" == '--upgrade' ]; then
 137         echo -ne "$zenman_upgrade";
 138         "$pacman" $pacman_upgrade;
 139         if [ $? != 0 ]; then
 140                 echo -e "\n$zenman_close";
 141                 read;
 142         else
 143                 sleep 2;
 144         fi;
 145         exit;
 146 fi;
 147
 148 #splash
 149 echo -e "$zenman_usage"
 150 if "$zenman_splash"; then
 151         notify-send -i info --expire-time=5000 "$zenman_caption" "$zenman_start";
 152 fi;
 153
 154
 155 #text-to-speech
 156 zenman_speech() {
 157         if "$zenman_speech" && [[ -x "$espeak" ]] ; then
 158                 "$espeak" -a "$espeak_volume" -v "$espeak_voice" "$1" &
 159         fi;
 160 }
 161
 162 #unlocker
 163 zenman_force_unlock() {
 164         if [ -e "$pacman_lock" ]; then #check if db locked...
 165                 ps -eo comm | grep -Ei '^(pacman|yaourt|powerpill|bauerbill|gtkpacman|pacupdate|kpacupdate|guzuta|YAPG|Shaman)' >/dev/null; #check if pacman is running...
 166         if [ $? != 0 ]; then
 167                         "$gksu" "rm -rf '$pacman_lock'";
 168                         if [ $? != 0 ]; then
 169                                 return 1; #gksu failed ;-(
 170                         else
 171                                 return 0; #unlocked!!!
 172                         fi;
 173                 else
 174                         return 1; #pacman is running ;-(
 175                 fi;
 176         else
 177                 return 0; #no locked!!!
 178         fi;
 179 }
 180
 181
 182 while true; do
 183         #uncomment next line if not running -Syuw from cron (and you better set higher zenman_interval)
 184         if "$zenman_autorefresh"; then
 185                 echo -ne "$zenman_refreshing ";
 186                 zenity --notification --text "$zenman_refreshing" --window-icon="$zenman_refresh_ico" &
 187                         zenman_force_unlock;
 188                         "$gksu" "'$pacman' $pacman_refresh --noconfirm" >/dev/null 2>&1
 189                 kill $! >/dev/null 2>&1;
 190                 kill -KILL $! >/dev/null 2>&1;
 191                 echo "$zenman_done";
 192         fi;
 193         #check for new packages
 194         pacman_new_packages=$("$pacman" $pacman_check --noconfirm 2>&1);
 195         if [ $? == 0 ] && [ "$pacman_new_packages" != '' ]; then #fixed pacman always returning 0 issue...
 196                 #new packages found
 197                 zenman_speech "$speech_true";
 198                 notify-send -i info "$zenman_caption" "$(echo -e "$zenman_true" "$pacman_new_packages")"
 199                 zenity --notification --timeout="$zenman_interval" --text "$(echo -e "$zenman_true" "$pacman_new_packages")" --window-icon="$zenman_true_ico";
 200         else
 201                 #no packages to update
 202                 zenity --notification --timeout="$zenman_interval" --text "$zenman_false" --window-icon="$zenman_false_ico";
 203         fi;
 204
 205         #run full system upgrade if notification icon clicked
 206         if [ $? == 0 ]; then
 207                 #try to unlock pacman db if locked and pacman is not running
 208                 zenman_force_unlock;
 209                 if [ $? == 0 ]; then
 210                         #update if unlocked
 211                         "$gksu" " '$xterm' -T '$zenman_caption' -e '$0 --upgrade \\\\'$zenman_configdir\\\\\''" ###TODO: fix quotes and escaping for configdir here later!!!!
 212                         zenman_force_unlock;
 213                 else
 214                         #show error if locked
 215                         notify-send -i error "$zenman_caption" "$zenman_locked";
 216                 fi;
 217         fi;
 218 done;