Waybar sysinfo plugin

This is a plugin for waybar that displays system information as vertical bars. Inspired by xfce-systemload plugin

This plugin can display following information:

• cpu load, including average load, most loaded core and all cores
• used memory and swap
• network activity
• temperature - max of chosen sensors or all

With reasonable settings

With unreasonable settings

Installation

For now only manual installation

cargo build --release
cp target/release/libwaybar_sysinfo.so ~/.local/lib/

Config

1. Add the module (identified by cffi/sysinfo) to your bar as you would with any other module.

   For example:

   "modules-right": [
       "cffi/sysinfo",
   ],

2. Add your configuration for the module (again identified by cffi/sysinfo), with options described in the table below.

   Almost-minimal example:

   "cffi/sysinfo": {
       "module_path": "/home/YOUR-USER/.local/lib/libwaybar_sysinfo.so",
       "cpu": {
           "show": ["avg_core"],
       },
       "mem": {
           "show": ["mem"]
       },
   },

Configuration options

Field	Type	Default	Description
module_path	string	none; required	Path to the libwaybar_sysinfo.so module (absolute, or relative to waybar's CWD)
interval_ms	integer	5000	Refresh interval in milliseconds
cpu	object	absent	Configuration for CPU monitor; leave absent for none
cpu.label	string	cpu	Label for CPU monitor; it could be an icon if you have Nerdfonts or similar
cpu.show	array with allowed values max_core, avg_core, all_cores	none; required	Specific CPU monitors to show; max_core: most loaded core; avg_core: average load of all cores; all_cores: separate bars for each core
mem	object	absent	Configuration for memory monitor; leave absent for none
mem.label	string	mem	Label for memory monitor; it could be an icon if you have Nerdfonts or similar
mem.show	array with allowed values mem, swap	none; required	Specific memory monitors to show; mem: used memory; swap: used swap
net	object	absent	Configuration for network monitor; leave absent for none
net.label	string	net	Label for network monitor; it could be an icon if you have Nerdfonts or similar
net.show	array of regex strings	none; required	Network interfaces to monitor, as regexes (which are not implicitly anchored)
net.floor	integer	2097152	Minimum value to use for the maximum throughput rate, in bytes per second; automatically increased where necessary within a sliding window
net.scaling	object	{ "type": "log_power", "exponent": 4 }	Scale mapping to use for network throughput
net.scaling.type	string with allowed values linear, power, log_power	none; required	Type of scaling to use; linear: linear relationship (rate/max); power: exponential relationship ((rate/max)^exponent); log_power: logarithmic relationship ((log(rate+1)/log(max+1))^exponent)
net.scaling.exponent	float	unsupported for linear, required for power and log_power	Exponent to use for power or log_power scaling; for power an exponent of 1 would be the same as linear, and the closer to zero, the more small throughput is visually boosted (try 0.33); for log_power pick numbers greater than zero, with larger numbers boosting small throughputs less (try 4)
temp	object	absent	Configuration for temperature monitor; leave absent for none
temp.label	string	temp	Label for temperature monitor; it could be an icon if you have Nerdfonts of similar
temp.show	array of strings	empty	Temperature sensors to show by exact name (find with sensors)
temp.show_max	array of regex strings	empty	Sets of sensor names matched by regex to aggregate into single bars showing the maximum of each set

Configuration example

Note that defaults are above. Nothing in the following configuration is default, in order to highlight some reasonable non-default settings.

"cffi/sysinfo": {
    "module_path": "/home/USER/.local/lib/libwaybar_sysinfo.so",
    "interval_ms": 2000,
    "cpu": {
        "label": "\uf4bc", // same as literal ""
        "show": ["max_core", "avg_core"],
    },
    "mem": {
        "label": "\uefc5", // same as literal ""
        "show": ["mem", "swap"],
    },
    "net": {
        "label": "\udb81\udef3", // same as literal "󰛳"
        "show": ["^eno\\d+$", "^wlan\\d+$"], // naming conventions vary by distro; other examples: "^en", "^wl"; "." or empty string to match all
        "floor": 12500000, // a full 100mbit pipe
        "scaling": {
            "type": "power",
            "exponent": 0.33,
        },
    },
    "temp": {
        "label": "\uf2c7", // same as literal ""
        "show_max": ["^Core \\d+$"], // show one bar for the highest out of all "Core n" sensors
    },
},

Style

This is the default config

#sysinfo .sysinfo-bar {
    padding-left: 5px;
    padding-top: 5px;
    padding-bottom: 5px;
}

/* progress bar */
#sysinfo trough {
    min-height: 3px;
    min-width: 7px;
    border: none;
}

/* colored part of progress bar */
#sysinfo progress {
    border: none;
    min-width: 7px;
}

#sysinfo .cpu progress {
  background-color: #d20f39;
}

#sysinfo .mem progress {
  background-color: #40a02b;
}

#sysinfo .net progress {
  background-color: #1e66f5;
}

#sysinfo .temp progress {
  background-color: #df8e1d;
}

Other useful information and examples for styling:

/**
 * The whole module is selectable with `#sysinfo`
 */
#sysinfo {
  background-color: green;
}

/**
 * The separate widgets are selectable with `.sysinfo-module`
 */
#sysinfo .sysinfo-module + .sysinfo-module {
  margin-left: 10px;
}

/**
 * The separate widgets also have a class for their type
 */
#sysinfo .sysinfo-module.cpu progress {
  background-color: blue;
}

/**
 * The separate widgets also have a class for their custom label
 */
#sysinfo .sysinfo-module.my-label progress { ... }

/**
 * Bars are given classes `gte-10`...`gte-90` for how full they are,
 * allowing colors or other styling to change accordingly
 */
#sysinfo .sysinfo-bar.gte-70 progress { background-color: yellow; }
#sysinfo .sysinfo-bar.gte-80 progress { background-color: orange; }
#sysinfo .sysinfo-bar.gte-90 progress { background-color: red; }

/**
 * Bars might be rounded by default; radius can be adjusted,
 * separately for `trough` and `progress`
 */
#sysinfo trough, #sysinfo progress {
  border-radius: 0px; /* for no rounding */
  border-radius: 2px; /* for a fixed radius */
  border-radius: 1000px; /* or some other high number for as close to circular as possible */

  /* Or you can control the different corners separately */
  border-top-radius: 1000px 1000px 0px 0px; /* for curved tops and flat bottoms */
}