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(Fixes #358.) Subprocesses created for custom module scripts were previously left running when the parent Waybar process exited. This patch sets the parent-death signal of child processes (PR_SET_PDEATHSIG on Linux, PROC_PDEATHSIG_CTL on FreeBSD) to SIGTERM. Caveats: * This uses Linux-specific or FreeBSD-specific calls. I don’t know if this project targets other systems? * There is a possibility that Waybar exits after calling `fork()`, but before calling `prctl` to set the parent-death signal. In this case, the child will not receive the SIGTERM signal and will continue to run. I did not handle this case as I consider it quite unlikely, since module scripts are usually launched only when Waybar starts. Please let me know if you think it needs to be handled. Testing: * With `htop` open, run Waybar v0.9.5 with a custom module that has an `exec` script. Terminate the Waybar process and notice that the script’s subprocess stays alive and is now a child of the init process. * Run Waybar with this patch and follow the same steps as above. Notice that this time the script’s subprocess terminates when the parent exits.
Waybar 
Highly customizable Wayland bar for Sway and Wlroots based compositors.
Available in Arch community or AUR, openSUSE, and Alpine Linux
Waybar examples
Current features
- Sway (Workspaces, Binding mode, Focused window name)
- Tray #21
- Local time
- Battery
- Network
- Bluetooth
- Pulseaudio
- Disk
- Memory
- Cpu load average
- Temperature
- MPD
- Custom scripts
- Multiple output configuration
- And much more customizations
Configuration and Styling
See the wiki for more details.
Installation
Waybar is available from a number of Linux distributions:
An Ubuntu PPA with more recent versions is available here.
Building from source
$ git clone https://github.com/Alexays/Waybar
$ cd Waybar
$ meson build
$ ninja -C build
$ ./build/waybar
# If you want to install it
$ ninja -C build install
$ waybar
Dependencies
gtkmm3
jsoncpp
libsigc++
fmt
wayland
chrono-date
spdlog
libgtk-3-dev [gtk-layer-shell]
gobject-introspection [gtk-layer-shell]
libgirepository1.0-dev [gtk-layer-shell]
libpulse [Pulseaudio module]
libnl [Network module]
libappindicator-gtk3 [Tray module]
libdbusmenu-gtk3 [Tray module]
libmpdclient [MPD module]
libsndio [sndio module]
Build dependencies
cmake
meson
scdoc
wayland-protocols
On Ubuntu you can install all the relevant dependencies using this command (tested with 19.10 and 20.04):
sudo apt install \
clang-tidy \
gobject-introspection \
libdbusmenu-gtk3-dev \
libfmt-dev \
libgirepository1.0-dev \
libgtk-3-dev \
libgtkmm-3.0-dev \
libinput-dev \
libjsoncpp-dev \
libmpdclient-dev \
libnl-3-dev \
libnl-genl-3-dev \
libpulse-dev \
libsigc++-2.0-dev \
libspdlog-dev \
libwayland-dev \
scdoc
Contributions welcome! - have fun :)
The style guidelines is Google's
License
Waybar is licensed under the MIT license. See LICENSE for more information.