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208 lines
5.1 KiB
Markdown
208 lines
5.1 KiB
Markdown
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# Ly - a TUI display manager
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Ly is a lightweight TUI (ncurses-like) display manager for Linux and BSD.
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## Dependencies
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- Compile-time:
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- zig 0.12.0
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- a C standard library
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- pam
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- xcb
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- Runtime (with default config):
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- xorg
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- xorg-xauth
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- mcookie
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- tput
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- shutdown
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### Debian
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```
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# apt install build-essential libpam0g-dev libxcb-xkb-dev
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```
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### Fedora
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**Warning**: You may encounter issues with SELinux on Fedora.
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It is recommended to add a rule for Ly as it currently does not ship one.
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```
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# dnf install kernel-devel pam-devel libxcb-devel
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```
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## Support
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The following desktop environments were tested with success:
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- awesome
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- bspwm
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- budgie
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- cinnamon
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- deepin
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- dwl
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- dwm
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- enlightenment
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- gnome
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- i3
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- kde
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- labwc
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- lxde
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- lxqt
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- mate
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- maxx
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- pantheon
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- qtile
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- spectrwm
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- sway
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- windowmaker
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- xfce
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- xmonad
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Ly should work with any X desktop environment, and provides
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basic wayland support (sway works very well, for example).
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## systemd?
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Unlike what you may have heard, Ly does not require `systemd`,
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and was even specifically designed not to depend on `logind`.
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You should be able to make it work easily with a better init,
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changing the source code won't be necessary :)
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## Cloning and Compiling
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Clone the repository
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```
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$ git clone https://github.com/fairyglade/ly
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```
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Change the directory to ly
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```
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$ cd ly
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```
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Compile
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```
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$ zig build
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```
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Test in the configured tty (tty2 by default)
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or a terminal emulator (but desktop environments won't start)
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```
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# zig build run
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```
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Install Ly and the provided systemd service file
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```
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# zig build installsystemd
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```
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Enable the service
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```
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# systemctl enable ly.service
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```
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If you need to switch between ttys after Ly's start you also have to
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disable getty on Ly's tty to prevent "login" from spawning on top of it
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```
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# systemctl disable getty@tty2.service
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```
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### OpenRC
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**NOTE**: On Gentoo, Ly will disable the `display-manager-init` service in order to run.
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Clone, compile and test.
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Install Ly and the provided OpenRC service
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```
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# zig build installopenrc
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```
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Enable the service
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```
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# rc-update add ly
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```
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You can edit which tty Ly will start on by editing the `tty` option in the configuration file.
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If you choose a tty that already has a login/getty running (has a basic login prompt),
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then you have to disable getty, so it doesn't respawn on top of ly
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```
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# rc-update del agetty.tty2
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```
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### runit
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```
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# zig build installrunit
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# ln -s /etc/sv/ly /var/service/
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```
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By default, ly will run on tty2. To change the tty it must be set in `/etc/ly/config.ini`
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You should as well disable your existing display manager service if needed, e.g.:
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```
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# rm /var/service/lxdm
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```
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The agetty service for the tty console where you are running ly should be disabled.
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For instance, if you are running ly on tty2 (that's the default, check your `/etc/ly/config.ini`)
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you should disable the agetty-tty2 service like this:
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```
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# rm /var/service/agetty-tty2
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```
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### Updating
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You can also install Ly without copying the system service and the configuration file. That's
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called *updating*. To update, simply run:
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```
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# zig build installnoconf
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```
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If you want to also copy the default config file (but still not the system service), run:
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```
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# zig build installexe
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```
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## Arch Linux Installation
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You can install ly from the [`[extra]` repos](https://archlinux.org/packages/extra/x86_64/ly/):
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```
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$ sudo pacman -S ly
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```
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## Configuration
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You can find all the configuration in `/etc/ly/config.ini`.
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The file is commented, and includes the default values.
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## Controls
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Use the up and down arrow keys to change the current field, and the
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left and right arrow keys to change the target desktop environment
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while on the desktop field (above the login field).
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## .xinitrc
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If your .xinitrc doesn't work make sure it is executable and includes a shebang.
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This file is supposed to be a shell script! Quoting from xinit's man page:
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> If no specific client program is given on the command line, xinit will look for a file in the user's home directory called .xinitrc to run as a shell script to start up client programs.
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On Arch Linux, the example .xinitrc (/etc/X11/xinit/xinitrc) starts like this:
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```
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#!/bin/sh
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```
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## Tips
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The numlock and capslock state is printed in the top-right corner.
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Use the F1 and F2 keys to respectively shutdown and reboot.
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Take a look at your .xsession if X doesn't start, as it can interfere
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(this file is launched with X to configure the display properly).
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## PSX DOOM fire animation
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To enable the famous PSX DOOM fire described by [Fabien Sanglard](http://fabiensanglard.net/doom_fire_psx/index.html),
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just uncomment `animate = true` in `/etc/ly/config.ini`. You may also
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disable the main box borders with `hide_borders = true`.
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## Additional Information
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The name "Ly" is a tribute to the fairy from the game Rayman.
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Ly was tested by oxodao, who is some seriously awesome dude.
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## Gentoo (OpenRC) installation tip
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To avoid a console spawning on top on Ly, comment out the appropriate line from /etc/inittab (default is 2).
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