diff options
Diffstat (limited to 'lib/git.nix')
| -rw-r--r-- | lib/git.nix | 140 |
1 files changed, 137 insertions, 3 deletions
diff --git a/lib/git.nix b/lib/git.nix index 5916cf83c..b28d89413 100644 --- a/lib/git.nix +++ b/lib/git.nix @@ -1,7 +1,7 @@ -{ lib, ... }: +{ lib, pkgs, ... }: let - inherit (lib) addNames; + inherit (lib) addNames escapeShellArg makeSearchPath; commands = addNames { git-receive-pack = {}; @@ -37,5 +37,139 @@ let master = "refs/heads/master"; all-heads = "refs/heads/*"; }; + + irc-announce-script = pkgs.writeScript "irc-announce-script" '' + #! /bin/sh + set -euf + + export PATH=${makeSearchPath "bin" (with pkgs; [ + coreutils + gawk + gnused + netcat + ])} + + 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() { tee /dev/stderr; } + + # 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 -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 + ''; + + hooks = { + # TODO make this a package? + irc-announce = { nick, channel, server, port ? 6667 }: '' + #! /bin/sh + set -euf + + export PATH=${makeSearchPath "bin" (with pkgs; [ + coreutils + git + gnused + ])} + + nick=${escapeShellArg nick} + channel=${escapeShellArg channel} + server=${escapeShellArg server} + port=${toString port} + + empty=0000000000000000000000000000000000000000 + + unset message + while read oldrev newrev ref; do + + if [ $oldrev = $empty ]; then + receive_mode=create + elif [ $newrev = $empty ]; then + receive_mode=delete + elif [ "$(git merge-base $oldrev $newrev)" = $oldrev ]; then + receive_mode=fast-forward + else + receive_mode=non-fast-forward + fi + + h=$(echo $ref | sed 's:^refs/heads/::') + + # empty_tree=$(git hash-object -t tree /dev/null + empty_tree=4b825dc6 + + id=$(echo $oldrev | cut -b-7) + id2=$(echo $newrev | cut -b-7) + if [ $oldrev = $empty ]; then id=$empty_tree; fi + if [ $newrev = $empty ]; then id2=$empty_tree; fi + + case $receive_mode in + create) + #git log --oneline $id2 + link="http://cd/cgit/$GIT_SSH_REPO/" + ;; + fast-forward|non-fast-forward) + #git diff --stat $id..$id2 + link="http://cd/cgit/$GIT_SSH_REPO/diff/?h=$h&id=$id&id2=$id2" + ;; + esac + + #host=$nick + #$host $GIT_SSH_REPO $ref $link + message="''${message+$message + }$GIT_SSH_USER $receive_mode pushed $link" + done + + if test -n "''${message-}"; then + exec ${irc-announce-script} \ + "$server" \ + "$port" \ + "$nick" \ + "$channel" \ + "$message" + fi + ''; + }; + in -commands // receive-modes // permissions // refs +commands // receive-modes // permissions // refs // hooks |