banner.sh

   1 #!/bin/sh
   2 #
   3 # bug reports send to pzurowski@pld-linux.org or pld-devel-* lists
   4 #
   5 # 2004, GPL 2+
   6 #
   7 # >> PLACE STANDARD GPL DISCLAIMER   H E R E .  <<
   8 #
   9 CONFIG=/etc/sysconfig/banner
  10
  11 ####################################################### CONFIG ########
  12
  13 # default paramaters
  14 ##########################
  15
  16 BANNERDIR="/var/lib/banner/"
  17 # egrep regexp
  18 EXCLUDEFILES="(rpmnew$|rpmsave$|~$)"
  19 STDOUT="1"  # stdout by default
  20 #STDOUT="2" # stderr by default
  21
  22 # config paramaeters
  23 ##########################
  24
  25 if [ -r $CONFIG ]; then
  26         . $CONFIG
  27 fi
  28
  29
  30 # override parameters
  31 ##########################
  32
  33 ALL_BANNERS=0
  34 BANNERS=""
  35 NOBANNERS=""
  36 BANNER_LIST=""
  37 CHOOSE_NEWER="no"
  38 CHOOSE_OLDER="no"
  39 EXCLUDE_FLAG=0
  40 NEED_BANNER_LIST=0
  41 NEED_MTIME_CHECK=0
  42 NEW_APPEND=0
  43 NEW_BANNER=""
  44 NEW_SHOW=0
  45
  46 case $STDOUT in
  47         [1-9]) ;;
  48         *) STDOUT="1" ;;
  49 esac
  50
  51 #################################################### FUNCTIONS ########
  52
  53 Usage()
  54 {
  55         cat << EOF
  56 Usage:  $(basename $0) [opitions] [banners]
  57 EOF
  58 }
  59 Help()
  60 {
  61         Usage
  62         cat << EOF
  63 -a
  64 --all       - all banners
  65 --delete    - delete wanted banners
  66 -e
  67 --exclude   - exclude following banners (useful with -a)
  68 -h
  69 --help      - show this help
  70 -i
  71 --include   - cancel effect of -e (EXCLUDED banners will remain excluded)
  72 -m
  73 --make      - make a brand-new banner named as following parameter [1] (from stdin)
  74 -M          - same as above, but append if file exists
  75 -n
  76 --names     - show names of the banners
  77 --newer     - all choosen banners should be newer than following parameter in seconds
  78 --older     - all choosen banners should be older than following parameter in seconds
  79 -s
  80 --show      - show wanted banners
  81 --stderr    - send banner to stderr instead of stdout (or other)
  82 --stdout    - send banner to stdout instead of stderr (or other)
  83 -u
  84 --usage     - show short help
  85
  86 [1] - if there will be no slash ('/') in name then config dir will be used,
  87       else -- specified.
  88 EOF
  89 }
  90 Unknown_para()
  91 {
  92         cat << EOF
  93 Unknown parameter $1
  94 EOF
  95         Help
  96 }
  97
  98 check_banners_mtime()
  99 {
 100         BANNERS="$1"
 101         OLDER="$2"
 102         NEWER="$3"
 103         DATE=$(date +%s)
 104         for BANNER in $BANNERS;do
 105                 STAT=$(stat -c %Y "$BANNERDIR/$BANNER")
 106                 if [ $OLDER != "no" -a $(( $DATE - $STAT )) -lt $OLDER ]; then
 107                         BANNER=""
 108                 fi
 109                 if [ $NEWER != "no" -a $(( $DATE - $STAT )) -gt $NEWER ]; then
 110                         BANNER=""
 111                 fi
 112                 echo $BANNER
 113         done
 114 }
 115 delete_banners()
 116 {
 117         BANNERS="$1"
 118         rm -rf $(get_banner_location_list "$BANNER")
 119 }
 120 get_all_banner_list()
 121 {
 122         ls "$BANNERDIR" | grep -E -v "$EXCLUDEFILES"
 123 }
 124 get_banner_list()
 125 {
 126         BANNERS="$1"
 127         NOBANNERS="$2"
 128         for BANNER in $BANNERS; do
 129                 if [ -r "$BANNERDIR/$BANNER" ];then
 130                         echo $NOBANNERS | grep -q $BANNER || echo $BANNER
 131                 fi
 132         done
 133 }
 134 get_banner_location_list()
 135 {
 136         BANNERS="$1"
 137         for BANNER in $BANNERS; do
 138                 echo "$BANNERDIR/$BANNER"
 139         done
 140 }
 141 make_banner()
 142 {
 143         BANNER="$1"
 144         SHOW="$2"
 145         mkdir -p "${BANNER%/*}"
 146         data=$(cat)
 147         if [ $NEW_APPEND -eq 0 ]; then
 148                 echo "$data" > $BANNER
 149         else
 150                 echo "$data" >> $BANNER
 151         fi
 152         if [ $SHOW -eq 1 ];then
 153                 echo "$data"
 154         fi
 155 }
 156 show_banner()
 157 {
 158         cat $BANNERDIR/$1 >&$STDOUT
 159 }
 160 show_banners()
 161 {
 162         for BANNER in $*; do
 163                 show_banner $BANNER
 164         done
 165 }
 166 ######################################################## MAIN ########
 167 while [ ! -z $1 ]; do
 168         case $1 in
 169                 -a|--all)
 170                         ALL_BANNERS=1
 171                         ;;
 172                 --delete)
 173                         NEED_BANNER_LIST=1
 174                         ACTION="delete"
 175                         ;;
 176                 -e|--exclude)
 177                         EXCLUDE_FLAG=1
 178                         ;;
 179                 -h|--help)
 180                         Help
 181                         exit 0
 182                         ;;
 183                 -i|--include)
 184                         EXCLUDE_FLAG=0
 185                         ;;
 186                 -m|--make|-M)
 187                         NEED_BANNER_LIST=0
 188                         if [[ $2 != */* ]]; then
 189                                 NEW_BANNER="$BANNERDIR/${2##*/}"
 190                         else
 191                                 NEW_BANNER="$2"
 192                         fi
 193                         ACTION="make"
 194                         if [ "$1" == "-M" ];then
 195                                 NEW_APPEND=1
 196                         else
 197                                 NEW_APPEND=0
 198                         fi
 199                         if [ -z "$NEW_BANNER" ];then
 200                                 Help
 201                                 exit 2
 202                         fi
 203                         shift
 204                         ;;
 205                 -n|--names)
 206                         NEED_BANNER_LIST=1
 207                         ACTION="names"
 208                         ;;
 209                 --newer)
 210                         NEED_MTIME_CHECK=1
 211                         CHOOSE_NEWER="$2"
 212                         if [ -z "$CHOOSE_NEWER" ];then
 213                                 Help
 214                                 exit 2
 215                         fi
 216                         shift
 217                         ;;
 218                 --older)
 219                         NEED_MTIME_CHECK=1
 220                         CHOOSE_OLDER="$2"
 221                         if [ -z "$CHOOSE_OLDER" ];then
 222                                 Help
 223                                 exit 2
 224                         fi
 225                         shift
 226                         ;;
 227                 -s|--show)
 228                         NEED_BANNER_LIST=1
 229                         NEW_SHOW=1
 230                         ACTION="show"
 231                         ;;
 232                 --stdout)
 233                         STDOUT="1"
 234                         ;;
 235                 --stderr)
 236                         STDOUT="2"
 237                         ;;
 238                 -u|--usage)
 239                         Usage
 240                         exit 0
 241                         ;;
 242                 -*)
 243                         Unknown_para "$1"
 244                         exit 1
 245                         ;;
 246                 *)
 247                         if [ $EXCLUDE_FLAG -eq 0 ];then
 248                                 BANNERS="$BANNERS ${1##*/}"
 249                         else
 250                                 NOBANNERS="$NOBANNERS ${1##*/}"
 251                         fi
 252                         ;;
 253         esac
 254         shift
 255 done
 256
 257 if [ $ALL_BANNERS -ne 0 ]; then
 258         BANNERS=`get_all_banner_list`
 259 fi
 260 if [ $NEED_BANNER_LIST -ne 0 ];then
 261         BANNER_LIST=`get_banner_list "$BANNERS" "$NOBANNERS"`
 262 fi
 263 if [ $NEED_MTIME_CHECK -ne 0 ];then
 264         BANNER_LIST=`check_banners_mtime "$BANNER_LIST" "$CHOOSE_OLDER" "$CHOOSE_NEWER"`
 265 fi
 266
 267 case $ACTION in
 268         "delete")
 269                 delete_banners $BANNER_LIST;
 270                 ;;
 271         "make")
 272                 make_banner $NEW_BANNER $NEW_SHOW;
 273                 ;;
 274         "names")
 275                 echo $BANNER_LIST;
 276                 ;;
 277         "show")
 278                 show_banners $BANNER_LIST;
 279                 ;;
 280 esac
 281
 282
 283