summaryrefslogtreecommitdiffstats
path: root/krebs/5pkgs/simple/git-hooks/default.nix
diff options
context:
space:
mode:
Diffstat (limited to 'krebs/5pkgs/simple/git-hooks/default.nix')
-rw-r--r--krebs/5pkgs/simple/git-hooks/default.nix107
1 files changed, 107 insertions, 0 deletions
diff --git a/krebs/5pkgs/simple/git-hooks/default.nix b/krebs/5pkgs/simple/git-hooks/default.nix
new file mode 100644
index 000000000..4017b873b
--- /dev/null
+++ b/krebs/5pkgs/simple/git-hooks/default.nix
@@ -0,0 +1,107 @@
+{ pkgs, ... }:
+
+with import <stockholm/lib>;
+
+{
+ # TODO irc-announce should return a derivation
+ # but it cannot because krebs.git.repos.*.hooks :: attrsOf str
+ irc-announce = { nick, channel, server, port ? 6667, verbose ? false, branches ? [] }: ''
+ #! /bin/sh
+ set -euf
+
+ export PATH=${makeBinPath (with pkgs; [
+ coreutils
+ git
+ gnugrep
+ gnused
+ ])}
+
+ green() { printf '\x0303,99%s\x0F' "$1"; }
+ red() { printf '\x0304,99%s\x0F' "$1"; }
+ orange() { printf '\x0307,99%s\x0F' "$1"; }
+ pink() { printf '\x0313,99%s\x0F' "$1"; }
+ gray() { printf '\x0314,99%s\x0F' "$1"; }
+
+ unset message
+ add_message() {
+ message="''${message+$message
+ }$*"
+ }
+
+ nick=${escapeShellArg nick}
+ channel=${escapeShellArg channel}
+ server=${escapeShellArg server}
+ port=${toString port}
+
+ host=$nick
+ cgit_endpoint=http://cgit.$host.r
+
+ empty=0000000000000000000000000000000000000000
+
+ 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/::')
+
+ ${optionalString (branches != []) ''
+ if ! (echo "$h" | grep -qE "${concatStringsSep "|" branches}"); then
+ echo "we are not serving this branch: $h"
+ exit 0
+ fi
+ ''}
+ # empty_tree=$(git hash-object -t tree /dev/null)
+ empty_tree=4b825dc6
+
+ id=$(echo $newrev | cut -b-7)
+ id2=$(echo $oldrev | cut -b-7)
+ if [ $newrev = $empty ]; then id=$empty_tree; fi
+ if [ $oldrev = $empty ]; then id2=$empty_tree; fi
+
+ case $receive_mode in
+ create)
+ link="$cgit_endpoint/$GIT_SSH_REPO/?h=$h"
+ ;;
+ delete)
+ link="$cgit_endpoint/$GIT_SSH_REPO/ ($h)"
+ ;;
+ fast-forward|non-fast-forward)
+ link="$cgit_endpoint/$GIT_SSH_REPO/diff/?h=$h&id=$id&id2=$id2"
+ ;;
+ esac
+
+ #$host $GIT_SSH_REPO $ref $link
+ add_message $(pink push) $link $(gray "($receive_mode)")
+
+ ${optionalString verbose ''
+ add_message "$(
+ git log \
+ --format="$(orange %h) %s $(gray '(%ar)')" \
+ --reverse \
+ $id2..$id
+
+ git diff --stat $id2..$id \
+ | sed '$!s/\(+*\)\(-*\)$/'$(green '\1')$(red '\2')'/'
+ )"
+ ''}
+
+ done
+
+ if test -n "''${message-}"; then
+ exec ${pkgs.irc-announce}/bin/irc-announce \
+ "$server" \
+ "$port" \
+ "$nick" \
+ "$channel" \
+ "$message"
+ fi
+ '';
+}