decb6064ec
This reverts commit 6187206a02.
Lol, no. Yes, /dev/stderr isn't POSIX (only fd 2 is and gawk has that
path hardcoded to the fd and thus it works), but the error is somewhere
else and "fixing" it like this doesn't help anyone.
67 lines
1.4 KiB
Nix
67 lines
1.4 KiB
Nix
{ pkgs, lib, ... }:
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with lib;
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pkgs.writeDashBin "irc-announce" ''
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set -euf
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export PATH=${makeSearchPath "bin" (with pkgs; [
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coreutils
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gawk
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gnused
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netcat
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nettools
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])}
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IRC_SERVER=$1
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IRC_PORT=$2
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IRC_NICK=$3$$
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IRC_CHANNEL=$4
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message=$5
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export IRC_CHANNEL # for privmsg_cat
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# echo2 and cat2 are used output to both, stdout and stderr
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# This is used to see what we send to the irc server. (debug output)
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echo2() { echo "$*"; echo "$*" >&2; }
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cat2() { tee /dev/stderr; }
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# privmsg_cat transforms stdin to a privmsg
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privmsg_cat() { awk '{ print "PRIVMSG "ENVIRON["IRC_CHANNEL"]" :"$0 }'; }
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# ircin is used to feed the output of netcat back to the "irc client"
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# so we can implement expect-like behavior with sed^_^
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# XXX mkselfdestructingtmpfifo would be nice instead of this cruft
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tmpdir=$(mktemp --tmpdir -d irc-announce_XXXXXXXX)
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cd "$tmpdir"
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mkfifo ircin
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trap "
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rm ircin
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cd '$OLDPWD'
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rmdir '$tmpdir'
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trap - EXIT INT QUIT
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" EXIT INT QUIT
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{
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echo2 "USER $LOGNAME 0 * :$LOGNAME@$(hostname)"
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echo2 "NICK $IRC_NICK"
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# wait for MODE message
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sed -n '/^:[^ ]* MODE /q'
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echo2 "JOIN $IRC_CHANNEL"
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printf '%s' "$message" \
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| privmsg_cat \
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| cat2
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echo2 "PART $IRC_CHANNEL"
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# wait for PART confirmation
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sed -n '/:'"$IRC_NICK"'![^ ]* PART /q'
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echo2 'QUIT :Gone to have lunch'
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} < ircin \
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| nc "$IRC_SERVER" "$IRC_PORT" | tee -a ircin
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''
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