git.plutz.net Git - rawnet/blob - db_channel.sh

   1 #!/bin/sh
   2
   3 [ "$include_dbchannel" ] && return 0
   4 include_dbchannel="$0"
   5
   6 # == FILE FORMAT ==
   7 # ID    NAME    DESCRIPTION     LOGO    THEME   AUTHORS DESCR_CACHE FUTUREUSE
   8
   9 # == GLOBALS ==
  10 unset CHANNEL_ID CHANNEL_NAME CHANNEL_DESCRIPTION CHANNEL_LOGO CHANNEL_THEME \
  11       CHANNEL_AUTHORS CHANNEL_DESCR_CACHE CHANNEL_FUTUREUSE
  12
  13 LOCAL_CHANNEL='local \
  14   CHANNEL_ID CHANNEL_NAME CHANNEL_DESCRIPTION CHANNEL_LOGO CHANNEL_THEME \
  15   CHANNEL_AUTHORS CHANNEL_DESCR_CACHE CHANNEL_FUTUREUSE
  16 '
  17
  18 chan_db="$_DATA/channels.db"
  19
  20 read_channel() {
  21   local channel="$1"
  22
  23   # Global exports
  24   CHANNEL_ID='' CHANNEL_NAME='' CHANNEL_DESCRIPTION='' CHANNEL_LOGO=''
  25   CHANNEL_THEME='' CHANNEL_AUTHORS='' CHANNEL_DESCR_CACHE=''
  26   CHANNEL_FUTUREUSE=''
  27
  28   if [ $# -eq 0 ]; then
  29     read -r CHANNEL_ID CHANNEL_NAME CHANNEL_DESCRIPTION CHANNEL_LOGO \
  30             CHANNEL_THEME CHANNEL_AUTHORS CHANNEL_DESCR_CACHE \
  31             CHANNEL_FUTUREUSE
  32   elif [ "$channel" -a -f "$chan_db" -a -r "$chan_db" ]; then
  33     read -r CHANNEL_ID CHANNEL_NAME CHANNEL_DESCRIPTION CHANNEL_LOGO \
  34             CHANNEL_THEME CHANNEL_AUTHORS CHANNEL_DESCR_CACHE \
  35             CHANNEL_FUTUREUSE <<-EOF
  36         $(grep "^${channel}     " "${chan_db}")
  37         EOF
  38   fi
  39   if [ "$CHANNEL_ID" ]; then
  40            CHANNEL_NAME="$(UNSTRING "${CHANNEL_NAME}")"
  41     CHANNEL_DESCRIPTION="$(UNSTRING "$CHANNEL_DESCRIPTION")"
  42         CHANNEL_AUTHORS="$(UNSTRING "$CHANNEL_AUTHORS")"
  43     CHANNEL_DESCR_CACHE="$(UNSTRING "$CHANNEL_DESCR_CACHE")"
  44   else
  45     unset CHANNEL_ID CHANNEL_NAME CHANNEL_DESCRIPTION CHANNEL_LOGO \
  46           CHANNEL_THEME CHANNEL_AUTHORS CHANNEL_DESCR_CACHE \
  47           CHANNEL_FUTUREUSE
  48     return 1
  49   fi
  50 }
  51
  52 update_channel(){
  53   local id="${1}" name description logo theme authors descr_cache futureuse
  54   local ID NAME DESCRIPTION LOGO THEME AUTHORS DESCR_CACHE FUTUREUSE
  55   local arg
  56
  57   for arg in "$@"; do case $arg in
  58     name=*) name="${arg#*=}";;
  59     description=*) description="${arg#*=}";;
  60     logo=*) logo="${arg#*=}";;
  61     theme=*) theme="${arg#*=}";;
  62     authors=*) authors="${arg#*=}";;
  63   esac; done
  64
  65   if LOCK "$chan_db"; then
  66     while read -r ID NAME DESCRIPTION LOGO THEME AUTHORS DESCR_CACHE FUTUREUSE; do
  67       if [ "$id" = "$ID" ]; then
  68         printf '%s      %s      %s      %s      %s      %s      %s      %s\n' \
  69                "$id" "$(STRING "${name-$(UNSTRING "$NAME")}")" \
  70                "$(STRING "${description-$(UNSTRING "$DESCRIPTION")}")" \
  71                "${logo:-${logo-${LOGO}}${logo+\\}}" \
  72                "${theme:-${theme-${THEME}}${theme+\\}}" \
  73                "$(STRING "${authors-$(UNSTRING "${AUTHORS}")}")" \
  74                "$(printf %s "${description-$(UNSTRING "$DESCRIPTION")}" |markdown |STRING)" \
  75                "${FUTUREUSE:-\\}"
  76       else
  77         printf '%s      %s      %s      %s      %s      %s      %s      %s\n' \
  78                "$ID" "$NAME" "$DESCRIPTION" "$LOGO" "$THEME" "$AUTHORS" \
  79                "$DESCR_CACHE" "$FUTUREUSE"
  80       fi
  81     done <"$chan_db" >"${chan_db}.$$"
  82     mv -- "${chan_db}.$$" "${chan_db}"
  83     RELEASE "$chan_db"
  84   else
  85     return 1
  86   fi
  87 }
  88
  89 new_channel(){
  90   local channel="${1:-$(randomid)}"
  91
  92   if LOCK "$chan_db"; then
  93     if grep -q "^${channel}     " "$chan_db"; then
  94       RELEASE "$chan_db"
  95       return 1
  96     fi
  97     printf '%s  \\      \\      \\      \\      %s      \\      \\\n' \
  98            "$channel" "$(STRING "$USER_ID")" >>"$chan_db"
  99     RELEASE "$chan_db"
 100   else
 101     return 1
 102   fi
 103 }