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
 161 ######################################################### MAIN ########
 162 while [ -n "$1" ]; do
 163         case "$1" in
 164                 -a|--all)
 165                         ALL_BANNERS=1
 166                         ;;
 167                 -d|--delete)
 168                         NEED_BANNER_LIST=1
 169                         ACTION="delete"
 170                         ;;
 171                 -e|--exclude)
 172                         EXCLUDE_FLAG=1
 173                         ;;
 174                 -h|--help)
 175                         Help
 176                         exit 0
 177                         ;;
 178                 -i|--include)
 179                         EXCLUDE_FLAG=0
 180                         ;;
 181                 -m|--make|-M)
 182                         NEED_BANNER_LIST=0
 183                         if [[ "$2" != */* ]]; then
 184                                 NEW_BANNER="$BANNERDIR/${2##*/}"
 185                         else
 186                                 NEW_BANNER="$2"
 187                         fi
 188                         ACTION="make"
 189                         if [ "$1" = "-M" ]; then
 190                                 NEW_APPEND=1
 191                         else
 192                                 NEW_APPEND=0
 193                         fi
 194                         if [ -z "$NEW_BANNER" ]; then
 195                                 Help
 196                                 exit 2
 197                         fi
 198                         shift
 199                         ;;
 200                 -n|--names)
 201                         NEED_BANNER_LIST=1
 202                         ACTION="names"
 203                         ;;
 204                 --newer)
 205                         NEED_MTIME_CHECK=1
 206                         CHOOSE_NEWER="$2"
 207                         if [ -z "$CHOOSE_NEWER" ]; then
 208                                 Help
 209                                 exit 2
 210                         fi
 211                         shift
 212                         ;;
 213                 --older)
 214                         NEED_MTIME_CHECK=1
 215                         CHOOSE_OLDER="$2"
 216                         if [ -z "$CHOOSE_OLDER" ]; then
 217                                 Help
 218                                 exit 2
 219                         fi
 220                         shift
 221                         ;;
 222                 -s|--show)
 223                         NEED_BANNER_LIST=1
 224                         NEW_SHOW=1
 225                         ACTION="show"
 226                         ;;
 227                 --stdout)
 228                         STDOUT="1"
 229                         ;;
 230                 --stderr)
 231                         STDOUT="2"
 232                         ;;
 233                 -u|--usage)
 234                         Usage
 235                         exit 0
 236                         ;;
 237                 -*)
 238                         Unknown_para "$1"
 239                         exit 1
 240                         ;;
 241                 *)
 242                         if [ $EXCLUDE_FLAG -eq 0 ]; then
 243                                 BANNERS="$BANNERS ${1##*/}"
 244                         else
 245                                 NOBANNERS="$NOBANNERS ${1##*/}"
 246                         fi
 247                         ;;
 248         esac
 249         shift
 250 done
 251
 252 if [ $ALL_BANNERS -ne 0 ]; then
 253         BANNERS=`get_all_banner_list`
 254 fi
 255 if [ $NEED_BANNER_LIST -ne 0 ]; then
 256         BANNER_LIST=`get_banner_list "$BANNERS" "$NOBANNERS"`
 257 fi
 258 if [ $NEED_MTIME_CHECK -ne 0 ]; then
 259         BANNER_LIST=`check_banners_mtime "$BANNER_LIST" "$CHOOSE_OLDER" "$CHOOSE_NEWER"`
 260 fi
 261
 262 case $ACTION in
 263         "delete")
 264                 delete_banners $BANNER_LIST
 265                 ;;
 266         "make")
 267                 make_banner $NEW_BANNER $NEW_SHOW
 268                 ;;
 269         "names")
 270                 echo $BANNER_LIST
 271                 ;;
 272         "show")
 273                 show_banners $BANNER_LIST
 274                 ;;
 275         "")
 276                 Help
 277                 ;;
 278 esac