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 check_banner_name()
  98 {
  99         echo "$1"|sed 's,.*/,,'
 100 }
 101 check_banners_mtime()
 102 {
 103         BANNERS="$1"
 104         OLDER="$2"
 105         NEWER="$3"
 106         DATE=$(date +%s)
 107         for BANNER in $BANNERS;do
 108                 STAT=$(stat -c %Y "$BANNERDIR/$BANNER")
 109                 if [ $OLDER != "no" -a $(( $DATE - $STAT )) -lt $OLDER ]; then
 110                         BANNER=""
 111                 fi
 112                 if [ $NEWER != "no" -a $(( $DATE - $STAT )) -gt $NEWER ]; then
 113                         BANNER=""
 114                 fi
 115                 echo $BANNER
 116         done
 117 }
 118 delete_banners()
 119 {
 120         BANNERS="$1"
 121         rm -rf $(get_banner_location_list "$BANNER")
 122 }
 123 get_all_banner_list()
 124 {
 125         ls "$BANNERDIR" | grep -E -v "$EXCLUDEFILES"
 126 }
 127 get_banner_list()
 128 {
 129         BANNERS="$1"
 130         NOBANNERS="$2"
 131         for BANNER in $BANNERS; do
 132                 if [ -r "$BANNERDIR/$BANNER" ];then
 133                         echo $NOBANNERS | grep -q $BANNER || echo $BANNER
 134                 fi
 135         done
 136 }
 137 get_banner_location_list()
 138 {
 139         BANNERS="$1"
 140         for BANNER in $BANNERS; do
 141                 echo "$BANNERDIR/$BANNER"
 142         done
 143 }
 144 make_banner()
 145 {
 146         BANNER="$1"
 147         SHOW="$2"
 148         mkdir -p $(echo $BANNER|sed 's,/[^/]*$,,')
 149         data=$(cat)
 150         if [ $NEW_APPEND -eq 0 ]; then
 151                 echo "$data" > $BANNER
 152         else
 153                 echo "$data" >> $BANNER
 154         fi
 155         if [ $SHOW -eq 1 ];then
 156                 echo "$data"
 157         fi
 158 }
 159 show_banner()
 160 {
 161         cat $BANNERDIR/$1 >&$STDOUT
 162 }
 163 show_banners()
 164 {
 165         for BANNER in $*; do
 166                 show_banner $BANNER
 167         done
 168 }
 169 ######################################################## MAIN ########
 170 while [ ! -z $1 ]; do
 171         case $1 in
 172                 -a|--all)
 173                         ALL_BANNERS=1
 174                         ;;
 175                 --delete)
 176                         NEED_BANNER_LIST=1
 177                         ACTION="delete"
 178                         ;;
 179                 -e|--exclude)
 180                         EXCLUDE_FLAG=1
 181                         ;;
 182                 -h|--help)
 183                         Help
 184                         exit 0
 185                         ;;
 186                 -i|--include)
 187                         EXCLUDE_FLAG=0
 188                         ;;
 189                 -m|--make|-M)
 190                         NEED_BANNER_LIST=0
 191                         if [ "$(check_banner_name $2)" == "$2" ]; then
 192                                 NEW_BANNER=$BANNERDIR/$(check_banner_name "$2")
 193                         else
 194                                 NEW_BANNER="$2"
 195                         fi
 196                         ACTION="make"
 197                         if [ "$1" == "-M" ];then
 198                                 NEW_APPEND=1
 199                         else
 200                                 NEW_APPEND=0
 201                         fi
 202                         if [ -z "$NEW_BANNER" ];then
 203                                 Help
 204                                 exit 2
 205                         fi
 206                         shift
 207                         ;;
 208                 -n|--names)
 209                         NEED_BANNER_LIST=1
 210                         ACTION="names"
 211                         ;;
 212                 --newer)
 213                         NEED_MTIME_CHECK=1
 214                         CHOOSE_NEWER="$2"
 215                         if [ -z "$CHOOSE_NEWER" ];then
 216                                 Help
 217                                 exit 2
 218                         fi
 219                         shift
 220                         ;;
 221                 --older)
 222                         NEED_MTIME_CHECK=1
 223                         CHOOSE_OLDER="$2"
 224                         if [ -z "$CHOOSE_OLDER" ];then
 225                                 Help
 226                                 exit 2
 227                         fi
 228                         shift
 229                         ;;
 230                 -s|--show)
 231                         NEED_BANNER_LIST=1
 232                         NEW_SHOW=1
 233                         ACTION="show"
 234                         ;;
 235                 --stdout)
 236                         STDOUT="1"
 237                         ;;
 238                 --stderr)
 239                         STDOUT="2"
 240                         ;;
 241                 -u|--usage)
 242                         Usage
 243                         exit 0
 244                         ;;
 245                 -*)
 246                         Unknown_para "$1"
 247                         exit 1
 248                         ;;
 249                 *)
 250                         if [ $EXCLUDE_FLAG -eq 0 ];then
 251                                 BANNERS="$BANNERS $(check_banner_name $1)"
 252                         else
 253                                 NOBANNERS="$NOBANNERS $(check_banner_name $1)"
 254                         fi
 255                         ;;
 256         esac
 257         shift
 258 done
 259
 260 if [ $ALL_BANNERS -ne 0 ]; then
 261         BANNERS=`get_all_banner_list`
 262 fi
 263 if [ $NEED_BANNER_LIST -ne 0 ];then
 264         BANNER_LIST=`get_banner_list "$BANNERS" "$NOBANNERS"`
 265 fi
 266 if [ $NEED_MTIME_CHECK -ne 0 ];then
 267         BANNER_LIST=`check_banners_mtime "$BANNER_LIST" "$CHOOSE_OLDER" "$CHOOSE_NEWER"`
 268 fi
 269
 270 case $ACTION in
 271         "delete")
 272                 delete_banners $BANNER_LIST;
 273                 ;;
 274         "make")
 275                 make_banner $NEW_BANNER $NEW_SHOW;
 276                 ;;
 277         "names")
 278                 echo $BANNER_LIST;
 279                 ;;
 280         "show")
 281                 show_banners $BANNER_LIST;
 282                 ;;
 283 esac
 284
 285
 286