b3nj5m1n/lemonblocks

A status bar generator for lemonbar, inspired by i3blocks and dwmblocks.

lemonblocks

A status bar generator for lemonbar, inspired by i3blocks and dwmblocks.

Report Bug · Request Feature

Table of Contents

• About the Project
• Getting Started
  • Prerequisites
  • Installation
• Usage
• Contributing
• License

About The Project

A status bar generator for lemonbar, inspired by i3blocks and dwmblocks, written in plain C.

Lemonbar reads from stdin for the status, it supports clickable areas, the commands will be written to stout.

Lemonblocks tries to make feeding the bar easier. You can define your own modules which you can asign signals. Every time you want to update one of your modules, you can send a signal to the instance of lemonblocks to run the associated command. This means that you don't have to run a script at certain intervals, instead you update it only when necessary.

Getting Started

Prerequisites

• lemonbar Lemonbar is a very leightweight bar. The original doesn't support XFT fonts, for that you will have to use a fork, such as this one, but if you want to have emojis you should probably use this fork.
• (Optional) Ubuntu Mono Font
• (Optional) Twemoji Font (Twitters emojis)

Installation

1. Clone the repo

git clone https://github.com/b3nj5m1n/lemonblocks.git

2. Bulid & Install lemonblocks

sudo make install

3. Copy default config

make config

4. Copy scripts

sudo make scripts

Usage

Starting lemonbar & lemonblocks

The script called start.sh will start lemonbar with sensible default settings as well as lemonblocks.

The script is moved to /usr/bin when installing, you can call it like this:

start-lemonbar.sh &

Updating a module

# 3 is the signal for your module
pkill lemonblocks -3

Config

You can configure your modules in the file config.txt located at ~/.config/lemonblocks. (Run make config to create the directory and copy the default config)

# Seperate values with a , (No space afterwards)
# Interval  Signal Icon  Command Alignment   Initial Status  BgColor FgColor LeftClick   MiddleClick RightClick  ScrollUp    ScrollDown Prefix Suffix
# Interval of 0 means it will only be updated by signals. NULL means nothing or default value for icons, colors and mouse events
# Example config:
0,3,🍍,/usr/bin/lbscripts/powermenu.sh,l, ,NULL,f8f8ff,NULL,NULL,NULL,NULL,NULL,[,]
1,4,NULL,/usr/bin/lbscripts/bspwm.sh,l, ,NULL,f8f8ff,NULL,NULL,NULL,NULL,NULL,[,]
1,5,NULL,/usr/bin/lbscripts/cmus.sh,l, ,NULL,f8f8ff,cmus-remote -u; pkill lemonblocks -5,NULL,NULL,cmus-remote -v +1%,cmus-remote -v -1%,[,]
0,6,🔈,/usr/bin/lbscripts/volume.sh,r, ,aa1d1f21,f8f8ff,amixer set Master toggle; pkill lemonblocks -6,NULL,NULL,amixer -q sset Master 1%+; pkill lemonblocks -6,amixer -q sset Master 1%-; pkill lemonblocks -6,[,]
0,7,📁,/usr/bin/lbscripts/free-space.sh,r, ,aa1d1f21,f8f8ff,NULL,NULL,NULL,NULL,NULL,[,]
0,8,🐒,/usr/bin/lbscripts/layout.sh,r, ,aa1d1f21,f8f8ff,NULL,NULL,NULL,NULL,NULL,[,]
300,10,NULL,/usr/bin/lbscripts/network.sh,r, ,aa1d1f21,f8f8ff,NULL,NULL,NULL,NULL,NULL,[,]
30,11,⏰,/usr/bin/lbscripts/date.sh,r, ,aa1d1f21,f8f8ff,NULL,NULL,NULL,NULL,NULL,[,]

Contributing

Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Any contributions you make are greatly appreciated.

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License

Distributed under the MIT License. See LICENSE for more information.

lemonblocks's Issues

Very high cpu usage

Randomly flickers for ~1 second every 15 minutes or so

X Error of railed request: BadLength

The start-lemonbar.sh script is returning an X error, specifically "BadLength," when trying to output a Twemoji icon to lemonbar. Any guidance on how to debug this?

/usr/bin/start-lemonbar.sh: line 4: xdpyinfo: command not found
lemonbar: no process found
lemonblocks: no process found
mkfifo: cannot create fifo '/tmp/lemonblockspipe': File exists

PREFIX: %{F#f8f8ff}%{B#aa1d1f21}[
SUFFIX: %{F#f8f8ff}%{B#aa1d1f21}]%{F-}%{B-}
Intervals are required, creating child process.
Received signal 11 for block ⏰
X Error of failed request: BadLength (poly request too large or internal Xlib length error)
Major opcode of failed request: 139 (RENDER)
Minor opcode of failed request: 20 (RenderAddGlyphs)
Serial number of failed request: 797
Current serial number in output stream: 881

What is the difference between succade and lemonblocks?

Hey man, I was curious to know what is the difference between Succade and Lemonblocks. They both seem to be the same thing?

Segmentation Fault

wm: dwm
term: st

~ Σ lemonblocks
[1]    234088 segmentation fault (core dumped)  lemonblocks
~ Σ

~ Σ start-lemonbar.sh
lemonblocks: no process found
mkfifo: fifo '/tmp/lemonblockspipe' を作成できません: ファイルが存在します
/usr/bin/start-lemonbar.sh: 40 行: 234624 Segmentation fault      (コアダンプ) lemonblocks
~ Σ

I put the fonts that I use normally and commented out xdo.

Memory Leak

There is a small memory leak that accumulates over time. I'm fairly certain the code in updateStatus that writes to blockToUpdate->status is part of the problem. I don't see the old value being free'd anywhere. Perhaps instead of dynamically allocating memory, moving to statically allocated arrays would be a safer and more optimal pattern to adopt?