fbsplash-themes-arch-banner/cache-icons

   1 #!/bin/bash
   2
   3 # cache-icons
   4 #
   5
   6 icon_count=13
   7 icon_size=32
   8 icon_size_small=16
   9 images=/lib/splash/arch-banner/images
  10
  11 # Directory from which the splash daemon loads
  12 # variable theme files (services icons) at startup
  13 # which need to be available after mounting the
  14 # splash cache even without theme hook script support
  15 work_dir=/etc/splash/$SPLASH_THEME/cache
  16 # Directory where temporary hook data files are stored
  17 # which need to be moved in by the initcpio hook
  18 work_dir_hooks=$spl_cachedir/hook-data-$SPLASH_THEME
  19
  20 work_dir_umount() {
  21         while mountpoint -q "${work_dir}"; do
  22                 umount "$@" -l "${work_dir}"
  23         done
  24 }
  25
  26 set -e
  27 case $1
  28 in install | uninstall ) # run by pacman package install script
  29         work_dir=${work_dir#/}
  30         ( cd "${work_dir%/*}" ) # verify theme dir is there
  31         work_dir_umount
  32         rm -rf "${work_dir}"
  33         [[ $1 = uninstall ]] && exit
  34 ;; sysinit | shutdown | reboot | suspend )
  35 ;; * ) # "rc_init boot"
  36         exit
  37 esac
  38 if [[ $1 = install ]]; then
  39         mkdir "${work_dir}"
  40 elif [[ $0 = */rc_init-post ]]; then
  41         # This does nothing, if the splash daemon was started in the initcpio.
  42         work_dir_umount -n
  43         exit
  44 else
  45         mount -n -s -t tmpfs cachedir "${work_dir}" -o rw,mode=0755,noexec,nosuid,nodev,size=4096k
  46 fi
  47 set +e
  48
  49 # Link invisible dummy icons
  50 # Status emblems
  51 for state in start stop fail; do
  52         ln -sfT $images/dummy.png "${work_dir}"/${state}
  53         ln -sfT $images/dummy.png "${work_dir}"/cover-${state}
  54 done
  55 # Service icons
  56 for (( num=1; num<=icon_count; num++ )) do
  57         ln -sfT $images/dummy.png "${work_dir}"/svc_${num}_start
  58         ln -sfT $images/dummy.png "${work_dir}"/svc_${num}_stop
  59 done
  60
  61 [[ $1 = install ]] && exit 0
  62
  63 ICON_THEME=/usr/share/icons/Tango
  64 . /etc/splash/$SPLASH_THEME/icons.conf
  65 [[ $ICON_THEME = /* ]] || ICON_THEME=/usr/share/icons/$ICON_THEME
  66
  67 # args: <icon-rel-path> <symlink-name>
  68 ln_svcicon() {
  69         if [[ -f $ICON_THEME/$ICON_SIZE/${1} ]]; then
  70                 ln -sfT "$ICON_THEME/$ICON_SIZE/${1}" "${work_dir}/${2}"
  71         else
  72                 echo "${0}: File not found: '$ICON_THEME/$ICON_SIZE/${1}'" >&2
  73                 return 1
  74         fi
  75 }
  76
  77 # Link status emblem icons if available or enable semi transparent covers
  78
  79 ICON_SIZE=${icon_size_small}x${icon_size_small}
  80 if ! [[ $ICON_start ]] || ! ln_svcicon "${ICON_start}" start; then
  81         ln -sfT $images/cover-a50.png "${work_dir}"/cover-start
  82         ln -sfT $images/cover-a50.png "${work_dir}"/cover-fail
  83 fi
  84 if ! [[ $ICON_stop ]] || ! ln_svcicon "${ICON_stop}" stop; then
  85         ln -sfT $images/cover-a50.png "${work_dir}"/cover-stop
  86         ln -sfT $images/cover-a50.png "${work_dir}"/cover-fail
  87 fi
  88 if ! [[ $ICON_fail  ]] || ! ln_svcicon "$ICON_fail" fail; then
  89         ln -sfT $images/cover-a50.png "${work_dir}"/cover-fail
  90 fi
  91
  92 # Link service icons and save positions for fast lookup
  93
  94 ICON_SIZE=${icon_size}x${icon_size}
  95
  96 declare -A SERVICE_ICONS_AA=()
  97 for (( i=0; i<${#SERVICE_ICONS[@]}; i+=2 )) do
  98         svc=${SERVICE_ICONS[i]}
  99         icon=${SERVICE_ICONS[i+1]}
 100         SERVICE_ICONS_AA[$svc]+=" ${icon}"
 101 done
 102
 103 # Get first existing icon for service from configuration
 104 # args: <svc>
 105 svcicon_get() {
 106         local icon icons=${SERVICE_ICONS_AA[$1]}
 107         for icon in $icons; do
 108                 [[ -f $ICON_THEME/$ICON_SIZE/$icon ]] || continue
 109                 echo "${icon}"
 110                 return
 111         done
 112         for icon in $icons; do
 113                 echo "${0}: File not found: '$ICON_THEME/$ICON_SIZE/${icon}'" >&2
 114         done
 115         return 1
 116 }
 117
 118 # splash_manager runs us without a tmpfs mounted
 119 mkdir -p "${work_dir_hooks}"
 120 rm -f "${work_dir_hooks}"/svcicon_num_*
 121
 122 # args: <service-name> start|stop
 123 svc_icon_num() {
 124         local svc=$1 icon
 125         icon=$( svcicon_get "${svc}" ) || return 0
 126         ln_svcicon "${icon}" svc_$(( ++ICON_NUM  ))_$2
 127         echo $ICON_NUM >|"${work_dir_hooks}"/svcicon_num_"${svc}"_$2
 128 }
 129 # Note: If no UDev in initcpio, process substitution doesn't work
 130 splash_svclist_get stop > "${work_dir}"/svcs_stop
 131 readarray -t svclist < "${work_dir}"/svcs_stop
 132 ICON_NUM=0
 133 for (( i=${#svclist[@]}-1; i>=0; i-- )) do
 134         svc_icon_num "${svclist[i]}" stop
 135 done
 136 splash_svclist_get start > "${work_dir}"/svcs_start
 137 readarray -t svclist < "${work_dir}"/svcs_start
 138 ICON_NUM=0
 139 for svc in "${svclist[@]}"; do
 140         svc_icon_num "${svc}" start
 141 done
 142
 143 # EOF #