169 lines
4.0 KiB
Nix
169 lines
4.0 KiB
Nix
{ lib, pkgs, ... }:
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with lib;
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let
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out = {
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inherit irc-announce;
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};
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# TODO irc-announce should return a derivation
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irc-announce = { nick, channel, server, port ? 6667, verbose ? false }: ''
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#! /bin/sh
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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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git
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gnused
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])}
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green() { printf '\x0303,99%s\x0F' "$1"; }
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red() { printf '\x0304,99%s\x0F' "$1"; }
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orange() { printf '\x0307,99%s\x0F' "$1"; }
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pink() { printf '\x0313,99%s\x0F' "$1"; }
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gray() { printf '\x0314,99%s\x0F' "$1"; }
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unset message
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add_message() {
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message="''${message+$message
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}$*"
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}
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nick=${escapeShellArg nick}
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channel=${escapeShellArg channel}
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server=${escapeShellArg server}
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port=${toString port}
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host=$nick
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cgit_endpoint=http://cgit.$host
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empty=0000000000000000000000000000000000000000
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while read oldrev newrev ref; do
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if [ $oldrev = $empty ]; then
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receive_mode=create
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elif [ $newrev = $empty ]; then
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receive_mode=delete
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elif [ "$(git merge-base $oldrev $newrev)" = $oldrev ]; then
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receive_mode=fast-forward
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else
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receive_mode=non-fast-forward
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fi
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h=$(echo $ref | sed 's:^refs/heads/::')
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# empty_tree=$(git hash-object -t tree /dev/null)
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empty_tree=4b825dc6
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id=$(echo $newrev | cut -b-7)
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id2=$(echo $oldrev | cut -b-7)
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if [ $newrev = $empty ]; then id=$empty_tree; fi
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if [ $oldrev = $empty ]; then id2=$empty_tree; fi
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case $receive_mode in
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create)
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link="$cgit_endpoint/$GIT_SSH_REPO/?h=$h"
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;;
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delete)
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link="$cgit_endpoint/$GIT_SSH_REPO/ ($h)"
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;;
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fast-forward|non-fast-forward)
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link="$cgit_endpoint/$GIT_SSH_REPO/diff/?h=$h&id=$id&id2=$id2"
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;;
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esac
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#$host $GIT_SSH_REPO $ref $link
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add_message $(pink push) $link $(gray "($receive_mode)")
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${optionalString verbose ''
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add_message "$(
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git log \
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--format="$(orange %h) %s $(gray '(%ar)')" \
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--reverse \
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$id2..$id
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git diff --stat $id2..$id \
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| sed '$!s/\(+*\)\(-*\)$/'$(green '\1')$(red '\2')'/'
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)"
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''}
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done
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if test -n "''${message-}"; then
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exec ${irc-announce-script} \
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"$server" \
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"$port" \
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"$nick" \
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"$channel" \
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"$message"
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fi
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'';
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irc-announce-script = pkgs.writeScript "irc-announce-script" ''
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#! /bin/sh
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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 -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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in out
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