banner.sh

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