From 48319283510719fe0d6cac1cdd835a292654836a Mon Sep 17 00:00:00 2001
From: Alex Davies <traverse.da@gmail.com>
Date: Thu, 6 Jun 2024 15:05:19 -0300
Subject: [PATCH] Use a systemd container to manage dslr-webcam
---
nixos/misc/dslr-webcam.nix | 33 ++++++++++++++++++++++++++++++---
1 file changed, 30 insertions(+), 3 deletions(-)
diff --git a/nixos/misc/dslr-webcam.nix b/nixos/misc/dslr-webcam.nix
index df094a3..38928f7 100644
--- a/nixos/misc/dslr-webcam.nix
+++ b/nixos/misc/dslr-webcam.nix
@@ -1,4 +1,3 @@
-
{ pkgs, lib, ... }:
let
@@ -8,7 +7,8 @@ let
'';
dslrUdevRule = ''
- ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="04a9", ENV{ID_USB_MODEL}=="Canon_Digital_Camera", RUN+="${pkgs.writeScriptBin "dslr-webcam" dslrWebcamScript}/bin/dslr-webcam"
+ ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="04a9", ENV{ID_USB_MODEL}=="Canon_Digital_Camera", RUN+="${pkgs.systemd}/bin/systemctl start dslr-webcam.service"
+ ACTION=="remove", SUBSYSTEM=="usb", ATTR{idVendor}=="04a9", ENV{ID_USB_MODEL}=="Canon_Digital_Camera", RUN+="${pkgs.systemd}/bin/systemctl stop dslr-webcam.service"
'';
dslrWebcamScript = ''
@@ -16,6 +16,20 @@ let
modprobe dslr-webcam || true
exec "${pkgs.gphoto2}/bin/gphoto2" --stdout --capture-movie | "${pkgs.ffmpeg}/bin/ffmpeg" -i - -vcodec rawvideo -pix_fmt yuv420p -f v4l2 /dev/video10
'';
+
+ dslrWebcamService = ''
+ [Unit]
+ Description=DSLR Webcam Service
+ After=network.target
+
+ [Service]
+ ExecStart=${pkgs.writeScriptBin "dslr-webcam" dslrWebcamScript}/bin/dslr-webcam
+ ExecStop=/bin/kill -s TERM $MAINPID
+ Restart=on-failure
+
+ [Install]
+ WantedBy=multi-user.target
+ '';
in
{
# Ensure your system configuration includes these options:
@@ -28,8 +42,21 @@ in
# Udev rule for DSLR camera
services.udev.extraRules = dslrUdevRule;
- # Install dslr-webcam script
+ # Install dslr-webcam script and systemd service
environment.systemPackages = with pkgs; [
(writeScriptBin "dslr-webcam" dslrWebcamScript)
];
+
+ systemd.services.dslr-webcam = {
+ description = "DSLR Webcam Service";
+ after = [ "network.target" ];
+ serviceConfig = {
+ ExecStart = "${pkgs.writeScriptBin "dslr-webcam" dslrWebcamScript}/bin/dslr-webcam";
+ ExecStop = "/bin/kill -s TERM $MAINPID";
+ Restart = "on-failure";
+ };
+ wantedBy = [ "multi-user.target" ];
+ };
}
+
+