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