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

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