From 3bc422b57eb12ea41205cfff1d59d2d465be5003 Mon Sep 17 00:00:00 2001
From: xenia <xenia@awoo.systems>
Date: Mon, 3 Feb 2025 21:51:29 -0500
Subject: [PATCH] pkgs: patch ZED to support desktop notifications

---
 overlay.nix                                   |   4 +
 pkgs/lix/lix-plugins/default.nix              |   1 +
 ...port-for-desktop-notifications-D-Bus.patch | 131 ++++++++++++++++++
 3 files changed, 136 insertions(+)
 create mode 100644 pkgs/zfs/0001-ZED-add-support-for-desktop-notifications-D-Bus.patch

diff --git a/overlay.nix b/overlay.nix
index f5d81be..dc57326 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -48,4 +48,8 @@ final: prev: {
 
   lix-plugins = prev.callPackage ./pkgs/lix/lix-plugins {};
   nix-plugins = builtins.throw "nix-plugins is not supported. see pkgs.lix-plugins";
+
+  zfs_2_2 = prev.zfs_2_2.overrideAttrs {
+    patches = [ ./pkgs/zfs/0001-ZED-add-support-for-desktop-notifications-D-Bus.patch ];
+  };
 }
diff --git a/pkgs/lix/lix-plugins/default.nix b/pkgs/lix/lix-plugins/default.nix
index 83d3bc7..e4ed2fa 100644
--- a/pkgs/lix/lix-plugins/default.nix
+++ b/pkgs/lix/lix-plugins/default.nix
@@ -1,4 +1,5 @@
 {
+  lib,
   fetchFromGitHub,
   stdenv,
   meson,
diff --git a/pkgs/zfs/0001-ZED-add-support-for-desktop-notifications-D-Bus.patch b/pkgs/zfs/0001-ZED-add-support-for-desktop-notifications-D-Bus.patch
new file mode 100644
index 0000000..40d6346
--- /dev/null
+++ b/pkgs/zfs/0001-ZED-add-support-for-desktop-notifications-D-Bus.patch
@@ -0,0 +1,131 @@
+From 4ec38cf16ad4cc5f7bb00b93c32cd8f1d313c14c Mon Sep 17 00:00:00 2001
+From: xenia <xenia@awoo.systems>
+Date: Mon, 3 Feb 2025 21:36:29 -0500
+Subject: [PATCH] ZED: add support for desktop notifications (D-Bus)
+
+---
+ cmd/zed/zed.d/zed-functions.sh | 85 ++++++++++++++++++++++++++++++++++
+ cmd/zed/zed.d/zed.rc           |  7 +++
+ 2 files changed, 92 insertions(+)
+
+diff --git a/cmd/zed/zed.d/zed-functions.sh b/cmd/zed/zed.d/zed-functions.sh
+index 3a2519633..d47ef070b 100644
+--- a/cmd/zed/zed.d/zed-functions.sh
++++ b/cmd/zed/zed.d/zed-functions.sh
+@@ -209,6 +209,10 @@ zed_notify()
+     [ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
+     [ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))
+ 
++    zed_notify_dbus "${subject}" "${pathname}"; rv=$?
++    [ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
++    [ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))
++
+     [ "${num_success}" -gt 0 ] && return 0
+     [ "${num_failure}" -gt 0 ] && return 1
+     return 2
+@@ -624,6 +628,87 @@ zed_notify_ntfy()
+ }
+ 
+ 
++# zed_notify_dbus (subject, pathname)
++#
++# Send a notification via D-Bus ...
++# The variable (ZED_USE_DBUS) defines whether to use D-Bus.
++#
++# Requires systemd (busctl) executables to be installed in the standard PATH.
++#
++# References
++#   ...
++#
++# Arguments
++#   subject: notification subject
++#   pathname: pathname containing the notification message (OPTIONAL)
++#
++# Globals
++#   ZED_USE_DBUS
++#
++# Return
++#   0: notification sent
++#   1: notification failed
++#   2: not configured
++#
++zed_notify_dbus()
++{
++    local subject="$1"
++    local pathname="${2:-"/dev/null"}"
++    local msg_body
++    local msg_out
++    local msg_err
++    local exit_status=0
++    local dir
++    local userid
++
++    [ -n "${ZED_USE_DBUS}" ] || return 2
++
++    if [ ! -r "${pathname}" ]; then
++        zed_log_err "dbus cannot read \"${pathname}\""
++        return 1
++    fi
++
++    zed_check_cmd "busctl" || return 1
++
++    # Read the message body in.
++    #
++    msg_body="$(cat "${pathname}")"
++
++    if [ -z "${msg_body}" ]
++    then
++        msg_body=$subject
++        subject=""
++    fi
++
++    # Send the notification to all users with a dbus session and check for
++    # errors.
++    # We use busctl(1) manually rather than eg notify-send(1) due to its
++    # ability to send D-Bus messages from root to a non-root user with the
++    # "--machine=<user>@.host" flag.
++    for dir in /run/user/*; do
++        if [ -S "$dir/bus" ]; then
++            userid="$(basename "$dir")"
++            msg_out="$( \
++                busctl --user --machine "$userid@.host" -- \
++                    call org.freedesktop.Notifications \
++                    /org/freedesktop/Notifications \
++                    org.freedesktop.Notifications Notify \
++                    "susssasa{sv}i" \
++                    "ZFS" 0 "drive-harddisk-symbolic" \
++                    "$subject" "$msg_body"
++                    0 2 urgency y 2 sender-pid x "$$" "-1" \
++                2>/dev/null
++            )"; rv=$?
++
++            if [ "${rv}" -ne 0 ]; then
++                zed_log_err "busctl exit=${rv}"
++                exit_status=1
++            fi
++        fi
++    done
++    return $exit_status
++}
++
+ 
+ # zed_rate_limit (tag, [interval])
+ #
+diff --git a/cmd/zed/zed.d/zed.rc b/cmd/zed/zed.d/zed.rc
+index 859c6f9cb..567cd556a 100644
+--- a/cmd/zed/zed.d/zed.rc
++++ b/cmd/zed/zed.d/zed.rc
+@@ -176,3 +176,10 @@ ZED_SYSLOG_SUBCLASS_EXCLUDE="history_event"
+ #  <https://docs.ntfy.sh/install/>
+ # https://ntfy.sh by default; uncomment to enable an alternative service url.
+ #ZED_NTFY_URL="https://ntfy.sh"
++
++##
++# Whether to send desktop notifications via D-Bus
++# If defined, busctl(1) will be used to send desktop notifications via
++# the org.freedesktop.Notifications D-Bus interface
++# Disabled by default; uncomment to enable.
++#ZED_USE_DBUS=1
+-- 
+2.47.0
+