config.phundrak.com/org/config/WIP/neofetch.org

#+title: Neofetch configuration
#+setupfile: headers
#+OPTIONS: auto-id:t
#+HTML_HEAD_EXTRA: <meta name="description" content="Phundrak's Neofetch config" />
#+HTML_HEAD_EXTRA: <meta property="og:title" content="Phundrak's Neofetch config" />
#+HTML_HEAD_EXTRA: <meta property="og:description" content="Description of the Neofetch config file of Phundrak" />
#+PROPERTY: header-args :noweb yes :exports code :tangle no :exports none
#+PROPERTY: header-args:sh :tangle ~/.config/neofetch/config.conf :exports code :noweb yes :padline no :mkdir yes :shebang "#!/usr/bin/env sh"

* Introduction
:PROPERTIES:
:CUSTOM_ID: Introduction-5942aea3
:END:
[[https://github.com/dylanaraps/neofetch][Neofetch]] is a CLI utility used to display system information. It was written in Bash, and thus its configuration file is written as a Bash script too. This document was written with org-mode, and my configuration file is tangled from the source blocks you will see below to ~~/.config/neofetch/config.conf~. This configuration will only contain what I need. For any further information, please refer to the [[https://github.com/dylanaraps/neofetch][original repository]] and [[https://github.com/dylanaraps/neofetch/wiki/Customizing-Info][its documentation]].

* The ~print_info~ functions
:PROPERTIES:
:CUSTOM_ID: The_print_info_functions-bb30763f
:END:
The ~print_info~ function is the function called by Neofetch in order to print the system information it could fetch. In this function, we’ll choose what to display, and how. This function looks like this:
#+BEGIN_SRC sh :tangle no
  print_info() {
      # Print information here…
  }
#+END_SRC

Generally, what we will display will be shown through the ~info~ function, redefined inside Neofetch (this is not ~info(1)~). This ~info~ function accepts one or two arguments. With one argument, such as with ~info memory~, we can get a result that looks like ~5136MiB / 15873MiB~, while calling it with two arguments will treat the first one as a prefix and the second one as the interesting information; ~info "Memory" memory~ will look like ~Memory: 5136MiB / 15873MiB~. Here is what we want to display:
#+NAME: info-elements-table
| Prefix   | Information | What it does                 |
|----------+-------------+------------------------------|
|          | title       | Username and hostname        |
|          | line_break  | Insert a blank line          |
|          | cols        | System theme                 |
|          | line_break  | Insert a blank line          |
| OS       | distro      | Distribution name            |
| Kernel   | kernel      | Kernel version               |
| Uptime   | uptime      | Machine uptime               |
| Packages | packages    | Number of installed packages |
| Shell    | shell       | User’s default shell         |
| WM       | wm          | User’s Window Manager        |
| Terminal | term        | Default terminal             |
| CPU      | cpu         | CPU information              |
| GPU      | gpu         | GPU information              |
| Memory   | memory      | RAM information              |

#+NAME: info-elements-gen
#+BEGIN_SRC emacs-lisp :var table=info-elements-table :cache yes
  (mapconcat (lambda (x)
               (format "info %s%s"
                       (if (not (string= (car x) ""))
                           (format "\"%s\" " (car x))
                         "")
                       (cadr x)))
             table
             "\n")
#+END_SRC

#+RESULTS[1e66bf48472ad24006f0cb9dc9c86078764ba84e]: info-elements-gen
#+begin_example
info line_break
info title
info line_break
info cols
info line_break
info "OS" distro
info "Kernel" kernel
info "Uptime" uptime
info "Packages" packages
info "Shell" shell
info "WM" wm
info "Terminal" term
info "CPU" cpu
info "GPU" gpu
info "Memory" memory
info "Disks" disks
#+end_example

Hence, the function looks like so:
#+BEGIN_SRC sh
  print_info() {
      <<info-elements-gen()>>
  }
#+END_SRC

Each of these modules can be tuned with the variables presented below.

* Information settings
:PROPERTIES:
:CUSTOM_ID: Information_settings-9d4cfe88
:END:
Each of the following variable tunes a function that can be called in ~print_info~ described above. It is possible to tune them by modifying this document or the configuration file itself, and they can be overridden by the command line with flags passed to ~neofetch~. I will divide these variables in two main categories: hardware and software-related properties.

** Software
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-59f4cb0f
:END:
*** OS
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-OS-67908fc4
:END:
**** Distro
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-OS-Distro-cd12bc4f
:END:
This variable can shorten the output of the ~distro~ function.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--distro_shorthand~
- Supports :: Everything except Windows and Haiku
- Examples ::
  - on :: ~Arch Linux~
  - off :: ~Arch~
#+begin_src sh
  distro_shorthand="off"
#+end_src

It is possible to display when the distro has been installed on the computer.

**** Kernel
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-OS-Kernel-658cedce
:END:
The variable below can shorten the output ofh the ~kernel~ function.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--kernel_shorthand~
- Supports :: Everything except *BSDs (except PacBSD and PC-BSD)
- Examples ::
  - on :: ~4.8.9-1-ARCH~
  - off :: ~Linux 4.8.9-1-ARCH~
#+begin_src sh
  kernel_shorthand="off"
#+end_src

**** OS Architecture
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-OS-OS_Architecture-2f60c93c
:END:
This variable can show or hide the OS architecture in the ~distro~ output.
- Default value :: ~"off"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--os_arch~
- Examples ::
  - on :: ~Arch Linux x86_64~
  - off :: ~Arch Linux~
#+begin_src sh
  os_arch="off"
#+end_src

**** Packages
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-OS-Packages-f836a58d
:END:
It is possible to show or hide Package Manager names.
- Default :: ~'tiny'~
- Values :: ~'on'~ / ~'tiny'~ / ~'off'~
- Flag :: ~--package_managers~
- Example ::
  - on :: ~'998 (pacman), 8 (flatpak), 4 (snap)'~
  - tiny :: ~'908 (pacman, flatpak, snap)'~
  - off :: ~'908'~
#+BEGIN_SRC sh
  package_managers="on"
#+END_SRC

**** Shell
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Shell-76439406
:END:
***** Shell path
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Shell-Shell_path-9eda636d
:END:
This allows to show either the path of the user’s shell, or simply its name.
- Default value :: ~"off"~
- Values ::
 - ~"on"~
 - ~"off"~
- Flag :: ~--shell_path~
- Examples ::
  - on :: ~/bin/bash~
  - off :: ~bash~
+begin_src sh
 shell_path="off"
+end_src

***** Shell version
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Shell-Shell_version-03964bb3
:END:
This allows to show the shell’s version in the output of ~shell~.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--shell_version~
- Examples ::
  - on :: ~bash 4.4.5~
  - off :: ~bash~
#+begin_src sh
  shell_version="off"
#+end_src

*** Uptime
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Uptime-a7b5361a
:END:
This variable can shorten the output of the ~uptime~ function. ~on~ shortens
it a bit, while ~tiny~ shortens it greatly.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"tiny"~
  - ~"off"~
- Flag :: ~--uptime_shorthand~
- Examples ::
  - on :: ~2 days, 10 hours, 3 mins~
  - off :: ~2 days, 10 hours, 3 minutes~
  - tiny :: ~2d 10h 3m~
#+begin_src sh
  uptime_shorthand="on"
#+end_src

*** IP address
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-IP_address-26df5e1d
:END:
It is possible to display the machine’s public IP address with the function ~ip~. The value below allows the user to change the website used to fetch it.
- Default value :: ~"http://ident.me"~
- Value :: ~"url"~
- Flag :: ~--ip_host~
#+begin_src sh
  public_ip_host="http://ident.me"
#+end_src

- Default value :: ~""~
- Values ::
  - ~""~
  - ~""~
- Flag :: ~""~
- Supports ::
- Examples ::
  - on :: ~~
  - off :: ~~
#+begin_src sh
#+end_src

*** Theming
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Theming-ba7f1ccd
:END:
This section will allow the user to modify what Neofetch can and cannot display about the machine’s theming —by this, I mean its GTK theme, its icons and its default font.

**** Shorten output
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Theming-Shorten_output-cbef1fa4
:END:
With this value, it is possible to shorten the output of the computer’s theming.
- Default value :: ~"off"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--gtk_shorthand~
- Examples ::
  - on :: ~Numix, Adwaita~
  - off :: ~Numix [GTK2], Adwaita [GTK3]~
#+begin_src sh
  gtk_shorthand="on"
#+end_src

**** Enable or disable theming display for GTK2
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Theming-Enable_or_disable_theming_display_for_GTK2-f4398571
:END:
It is possible to explicitely show or hide the computer’s theming with GTK2 with this variable.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--gtk2~
- Examples ::
  - on :: ~Numix [GTK2], Adwaita [GTK3]~
  - off :: ~Adwaita [GTK3]~
#+begin_src sh
  gtk2="off"
#+end_src

**** Enable or disable theming display for GTK3
:PROPERTIES:
:CUSTOM_ID: Information_settings-Software-Theming-Enable_or_disable_theming_display_for_GTK3-c4070e66
:END:
The same variable as above is also available for GTK3.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--gtk3~
- Examples ::
  - on :: ~Numix [GTK2], Adwaita [GTK3]~
  - off :: ~Numix [GTK2]~
#+begin_src sh
  gtk3="off"
#+end_src

** Hardware
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-de7ed990
:END:
*** CPU
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-eb0bcd7d
:END:
**** CPU brand
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-CPU_brand-5b25776b
:END:
With this variables, it  is possible to show or hide the brand  of a CPU in
the ~cpu~ output.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--cpu_brand~
- Examples ::
  - on :: ~Intel i7-6500U~
  - off :: ~i7-6500U~
#+begin_src sh
  cpu_brand="off"
#+end_src

**** CPU speed
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-CPU_speed-2bf6e5f7
:END:
With this variable, it is possible to show or hide the speed of the CPU.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--cpu_speed~
- Examples ::
  - on :: ~Intel i7-6500U (4) @ 3.1GHz~
  - off :: ~Intel i7-6500U (4)~
#+begin_src sh
  cpu_speed="off"
#+end_src

**** CPU speed type
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-CPU_speed_type-a24de48f
:END:
This allows Neofetch to know what type of speed it has to fetch regarding the machine’s CPU. Any file in ~/sys/devices/system/cpu/cpu0/cpufreq~ can be used as a value.
- Default value :: ~"bios_limit"~
- Values ::
  - ~"scaling_cur_freq"~
  - ~"scaling_min_freq"~
  - ~"scaling_max_freq"~
  - ~"bios_limit"~
- Flag :: ~--speed_type~
- Supports :: Linux with ~cpufreq~
#+begin_src sh
  speed_type="bios_limit"
#+end_src

**** CPU speed shorthand
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-CPU_speed_shorthand-0d15fe08
:END:
This value allows to show sorter CPU speed with less digits. This flag is not supported in systems with CPU speed below 1GHz.
- Default value :: ~"off"~
- Values ::
  - ~"on"~
  - ~"on"~
- Flag :: ~--speed_shorthand~
- Examples ::
  - on :: ~i7-6500U (4) @ 3.1GHz~
  - off :: ~i7-6500U (4) @ 3.100GHz~
#+begin_src sh
  speed_shorthand="on"
#+end_src

**** CPU cores
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-CPU_cores-30177354
:END:
With this variable, it is possible to display the number of cores that are available in the CPU.
- Default value :: ~"logical"~
- Values ::
  - ~"logical"~
  - ~"physical"~
  - ~"off"~
- Flag :: ~--cpu_cores~
- Supports :: ~physical~ does not work on BSD.
- Examples ::
  - logical :: ~Intel i7-6500U (4) @ 3.1GHz~ (All virtual cores)
  - physical :: ~Intel i7-6500U (2) @ 3.1GHz~ (All physical cores)
  - off :: ~Intel i7-6500U @ 3.1GHz~
#+begin_src sh
  cpu_cores="off"
#+end_src

**** CPU temperature
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-CPU-CPU_temperature-a22e522c
:END:
This variable allows the user to hide or show the CPU’s temperature, and if shown, the user can display it in Celcius or Farenheit degrees. For FreeBSD and NetBSD-based systems, you’ll need to enable the ~coretemp~ kernel module. This only supports newer Intel processors.
- Default value :: ~"off"~
- Values ::
  - ~"C"~
  - ~"F"~
  - ~"off"~
- Flag :: ~--cpu_temp~
- Supports :: Linux, BSD
- Examples ::
  - C :: ~Intel i7-6500U (4) @ 3.1GHz [27.2°C]~
  - F :: ~Intel i7-6500U (4) @ 3.1GHz [82.0°F]~
  - off :: ~Intel i7-6500U (4) @ 3.1GHz~
#+begin_src sh
  cpu_temp="off"
#+end_src

*** GPU
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-GPU-2c842575
:END:
The function responsible for displaying information regarding the GPUs is ~gpu~. It will try to list all available GPUs and display what it knows about them.

**** GPU brand
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-GPU-GPU_brand-6e2da615
:END:
This value allows the user to hide or show the brand of their GPU in the output of ~gpu~.
- Default value :: ~"on"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--gpu_brand~
- Supports ::
- Examples ::
  - on :: ~AMD HD 7950~
  - off :: ~HD 7950~
#+begin_src sh
  gpu_brand="off"
#+end_src

**** Which GPU to display
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-GPU-Which_GPU_to_display-f40d3aac
:END:
This allows the user to choose which GPU appears in the output of the function ~gpu~.
- Default value :: ~"all"~
- Values ::
  - ~"all"~
  - ~"dedicated"~
  - ~"integrated"~
- Flag :: ~--gpu_type~
- Supports :: Linux
- Examples ::
  - all ::
    #+BEGIN_SRC text
      GPU1: AMD HD 7950
      GPU2: Intel Integrated Graphics
   #+END_SRC
  - dedicated :: ~GPU1: AMD HD 7950~
  - integrated :: ~GPU1: Intel Integrated Graphics~
#+begin_src sh
  gpu_type="all"
#+end_src

*** Resolution
:PROPERTIES:
:CUSTOM_ID: Information_settings-Hardware-Resolution-b768f865
:END:
This will try to list all the connected screens and display their resolution individually. It is possible to display the refresh rate or to hide it.
- Default value :: ~"off"~
- Values ::
  - ~"on"~
  - ~"off"~
- Flag :: ~--refresh_rate~
- Supports :: Does not work on Windows
- Examples ::
  - on :: ~1920x1080 @ 60Hz~
  - off :: ~1920x1080~
#+begin_src sh
  refresh_rate="off"
#+end_src