72 lines
1.5 KiB
Nix
72 lines
1.5 KiB
Nix
{ pkgs, lib, ... }:
|
|
|
|
with lib;
|
|
|
|
pkgs.writeDashBin "irc-announce" ''
|
|
set -euf
|
|
|
|
export PATH=${makeSearchPath "bin" (with pkgs; [
|
|
coreutils
|
|
gawk
|
|
gnused
|
|
netcat
|
|
nettools
|
|
])}
|
|
|
|
IRC_SERVER=$1
|
|
IRC_PORT=$2
|
|
IRC_NICK=$3_$$
|
|
IRC_CHANNEL=$4
|
|
message=$5
|
|
|
|
export IRC_CHANNEL # for privmsg_cat
|
|
|
|
# echo2 and cat2 are used output to both, stdout and stderr
|
|
# This is used to see what we send to the irc server. (debug output)
|
|
echo2() { echo "$*"; echo "$*" >&2; }
|
|
cat2() {
|
|
while read -r line; do
|
|
echo "$line"
|
|
echo "$line" >&2
|
|
done
|
|
}
|
|
|
|
# privmsg_cat transforms stdin to a privmsg
|
|
privmsg_cat() { awk '{ print "PRIVMSG "ENVIRON["IRC_CHANNEL"]" :"$0 }'; }
|
|
|
|
# ircin is used to feed the output of netcat back to the "irc client"
|
|
# so we can implement expect-like behavior with sed^_^
|
|
# XXX mkselfdestructingtmpfifo would be nice instead of this cruft
|
|
tmpdir=$(mktemp --tmpdir -d irc-announce_XXXXXXXX)
|
|
cd "$tmpdir"
|
|
mkfifo ircin
|
|
trap "
|
|
rm ircin
|
|
cd '$OLDPWD'
|
|
rmdir '$tmpdir'
|
|
trap - EXIT INT QUIT
|
|
" EXIT INT QUIT
|
|
|
|
{
|
|
echo2 "USER $LOGNAME 0 * :$LOGNAME@$(hostname)"
|
|
echo2 "NICK $IRC_NICK"
|
|
|
|
# wait for MODE message
|
|
sed -n '/^:[^ ]* MODE /q'
|
|
|
|
echo2 "JOIN $IRC_CHANNEL"
|
|
|
|
printf '%s' "$message" \
|
|
| privmsg_cat \
|
|
| cat2
|
|
|
|
echo2 "PART $IRC_CHANNEL"
|
|
|
|
# wait for PART confirmation
|
|
sed -n '/:'"$IRC_NICK"'![^ ]* PART /q'
|
|
|
|
echo2 'QUIT :Gone to have lunch'
|
|
} < ircin \
|
|
| nc "$IRC_SERVER" "$IRC_PORT" | tee -a ircin
|
|
''
|