config.phundrak.com/.config/fish/README.org

#+TITLE: Phundrak’s fish config
#+AUTHOR: Lucien "Phundrak” Cartier-Tilet
#+EMAIL: lucien@phundrak.com
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* Table of Contents                                        :TOC_4_gh:noexport:
  :PROPERTIES:
  :CUSTOM_ID: h-c7ab05d0-4c5f-4a4c-8603-4c79e264141c
  :END:
- [[#presentation][Presentation]]
- [[#fish-from-within-emacs][Fish from within Emacs]]
- [[#tramp-remote-access][Tramp remote access]]
- [[#regular-fish-shell-appearance][Regular fish shell appearance]]
- [[#global-variables][Global variables]]
- [[#theme-customization][Theme customization]]
- [[#abbreviations][Abbreviations]]
  - [[#system-monitoring][System monitoring]]
  - [[#system-management-packages-and-services][System management (packages and services)]]
    - [[#package-mangaement][Package mangaement]]
    - [[#service-management][Service management]]
  - [[#development][Development]]
    - [[#cmake][CMake]]
    - [[#compilation][Compilation]]
    - [[#docker][Docker]]
    - [[#git][Git]]
    - [[#prolog][Prolog]]
    - [[#text-editors][Text editors]]
  - [[#latex][LaTeX]]
  - [[#some-security-measures][Some security measures]]
  - [[#typos][Typos]]
  - [[#misc][Misc]]
    - [[#sudo][Sudo]]
    - [[#exit][Exit]]
    - [[#history][History]]
    - [[#song-download-from-youtube][Song download from YouTube]]
    - [[#mpv][MPV]]
    - [[#compression][Compression]]
    - [[#feh][Feh]]
    - [[#ls][ls]]
    - [[#network-management][Network Management]]
    - [[#wget][Wget]]

* Presentation
  :PROPERTIES:
  :CUSTOM_ID: h-c2560b46-7f97-472f-b898-5ab483832228
  :HEADER-ARGS: :tangle config.fish :exports code
  :END:
  The file present in =~/.config/fish/config.fish= is the configuration file for
  the  [[https://fishshell.com/][fish  shell]]. It  contains  custom  functions, environment  variables  and
  abbreviations.

  Just  in  case,  we  might  need   sometimes  to  declare  the  fish  function
 =fish_title= as =true=, so let’s do so.
  #+BEGIN_SRC fish
    function fish_title
        true
    end
  #+END_SRC

* Fish from within Emacs
  :PROPERTIES:
  :CUSTOM_ID: h-97d738f4-1ea0-4f64-a31d-19643486a951
  :HEADER-ARGS: :tangle config.fish :exports code
  :END:
  I sometimes call fish from within  emacs, with =M-x ansi-term=. In this case,
  the variable =TERM= needs to have the value =eterm-color=.
  #+BEGIN_SRC fish
    if test -n "$EMACS"
        set -x TERM eterm-color
    end
  #+END_SRC

* Tramp remote access
  :PROPERTIES:
  :CUSTOM_ID: h-6cad2cc9-aef6-4df4-90f9-97053e82072a
  :HEADER-ARGS: :tangle config.fish :exports code
  :END:
  When accessing from  a remote machine our computer from  Emacs, tramp needs a
  precise shell appearance: a simple =$= followed by a space after which to put
  the  commands it  needs to  execute,  and nothing  else. Due  to this,  let’s
  deactivate  and redefine  some of  the functions  defining the  appearance of
  fish.
  #+BEGIN_SRC fish
    if test "$TERM" = "dumb"
        function fish_prompt
            echo "\$ "
        end
        function fish_right_prompt; end
        function fish_greeting; end
        function fish_title; end
    end
  #+END_SRC

* Regular fish shell appearance
  :PROPERTIES:
  :CUSTOM_ID: h-a8434b29-c146-4141-b8f8-1b446c791907
  :HEADER-ARGS: :tangle config.fish :exports code
  :END:
  Now, there is only  one function I modify when it comes  to the appearance of
  fish  when I’m  the  one  using it:  I  simply  “delete” the =fish_greeting=
  function.
  #+BEGIN_SRC fish
    function fish_greeting; end
  #+END_SRC

* Global variables
  :PROPERTIES:
  :CUSTOM_ID: h-0eff37da-af9f-4546-8ad3-201961a2200f
  :HEADER-ARGS: :tangle config.fish :exports code
  :END:
  Some global variables might sometimes be needed and need to be modified. This
  is for example the case with my =PATH= variable in which I add Rust’s Cargo’s
  binaries, Go’s binaries  and my own executables. And of  course, don’t forget
  to add the already existing =PATH=.
  #+BEGIN_SRC fish
    set -gx PATH \
    $HOME/.pub-cache/bin $HOME/.local/bin $HOME/go/bin $HOME/.cargo/bin \
    $HOME/.gem/ruby/2.6.0/bin $PATH
  #+END_SRC

  Sometimes, software  will rely on =SUDO_ASKPASS=  to get a GUI  from which it
  can get the sudo password. So, let’s declare it.
  #+BEGIN_SRC fish
    set -gx SUDO_ASKPASS ~/.local/bin/askpass
  #+END_SRC

  Now, let’s declare  our editor of choice, EmacsClient; not  Emacs itself since
  it will  most often be just  quick edits, nothing  too heavy, if it  is called
  from the =EDITOR= variable (from Git, for example).
  #+BEGIN_SRC fish
    set -gx EDITOR emacsclient -c
  #+END_SRC

  We also need to set the path to the Dart SDK.
  #+BEGIN_SRC fish
  set -gx DART_SDK /opt/dart-sdk/bin
  #+END_SRC

  And we also need to specify where the Android SDK it located.
  #+BEGIN_SRC fish
  set -gx ANDROID_HOME $HOME/Android/Sdk
  #+END_SRC

  Finally, some development  packages require the =PKG_CONFIG_PATH=  to be set,
  so let’s do so.
  #+BEGIN_SRC fish
    set -gx PKG_CONFIG_PATH /usr/local/lib/pkgconfig/ $PKG_CONFIG_PATH
  #+END_SRC

* Theme customization
  :PROPERTIES:
  :CUSTOM_ID: h-e9dccb31-8350-459d-b688-b5b7cbeab272
  :END:

  The theme I use is =bobthefish=. Although its default configuration is quite
  alright, it allows some customization. The first thing I want to enable is the
  support for =nerd-fonts=:
  #+BEGIN_SRC fish
    set -g theme_nerd_fonts_support yes
  #+END_SRC

  Next, I want the name of the current process to be shown in the terminal
  title.
  #+BEGIN_SRC fish
    set -g theme_title_display_process yes
  #+END_SRC

  I also wish to display the current host in the prompt, but only when I am
  connected through an SSH session.
  #+BEGIN_SRC fish
    set -g theme_display_hostname ssh
  #+END_SRC

  I also want the sudo username to be displayed, as a warning that I am indeed
  running a session as root.
  #+BEGIN_SRC fish
    set -g theme_display_sudo_user yes
  #+END_SRC

  The exit status can be sometimes really useful, hence why I want it activated.
  #+BEGIN_SRC fish
    set -g theme_show_exit_status yes
  #+END_SRC

  I also want to have proper git worktree support.
  #+BEGIN_SRC fish
    set -g theme_git_worktree_support yes
  #+END_SRC

* Abbreviations
  :PROPERTIES:
  :CUSTOM_ID: h-740bd904-3e32-4c09-b0a4-bde16ae2e116
  :HEADER-ARGS: :tangle config.fish :exports code
  :END:
** System monitoring
   :PROPERTIES:
   :CUSTOM_ID: h-ec910a8c-9154-48a4-b4cd-df28cb4e54d9
   :END:
   Here I have  some abbreviations which are quite useful  when performing some
   system  monitoring. With =df=, we  can get  an overview  of our  filesystem
   usage, while with =diskspace= we get some more precise information.
   #+BEGIN_SRC fish
     abbr df 'df -H'
     abbr diskspace 'sudo df -h | grep -E "sd|lv|Size"'
   #+END_SRC

 =meminfo= is a call to =free= with sane defaults.
   #+BEGIN_SRC fish
     abbr meminfo 'free -m -l -t'
   #+END_SRC

   Similar to =meminfo=, we  also have =gpumeminfo= so we can  get a quick look
   at the memory-related logs of our X session.
   #+BEGIN_SRC fish
     abbr gpumeminfo 'grep -i --color memory /var/log/Xorg.0.log'
   #+END_SRC

   I also  declared =cpuinfo= an alias  of =lscpu= in order  to keep consistent
   with =meminfo=.
   #+BEGIN_SRC fish
     abbr cpuinfo lscpu
   #+END_SRC

 =pscpu=  gives us  information on  what the  CPU is  running right  now, and
 =pscpu10= limits that to the top 10 threads.
   #+BEGIN_SRC fish
     abbr pscpu 'ps auxf | sort -nr -k 3'
     abbr pscpu10 'ps auxf | sort -nr -k 3 | head -10'
   #+END_SRC

   Similarly, =psmem= gives  us information on the memory usage  of the current
   threads,  and =psmem10=  only the  ten most  important threads  in terms  of
   memory usage.
   #+BEGIN_SRC fish
     abbr psmem 'ps auxf | sort -nr -k 4'
     abbr psmem10 'ps auxf | sort -nr -k 4 | head -10'
   #+END_SRC

** System management (packages and services)
   :PROPERTIES:
   :CUSTOM_ID: h-78ac23f0-960d-4f56-9cba-64413fd61885
   :END:
   I added  some of these abbreviations  due to how  often I have to  write the
   whole thing.

*** Package mangaement
    :PROPERTIES:
    :CUSTOM_ID: h-281a59aa-4ea0-47ab-a4cc-33fff8d38165
    :END:
    The first  command is =remove= which  removes a package from  my system, as
    well as its dependencies no longer needed.
    #+BEGIN_SRC fish
      abbr remove 'sudo pacman -Rscnd'
    #+END_SRC

    But if I just  want to run =pacman= as sudo, then I  could always just type
 =p=.
    #+BEGIN_SRC fish
      abbr p 'sudo -A pacman'
    #+END_SRC

    Sometimes,  I  just  want  to  purge my  package  manager’s  cache,  be  it
 =pacman='s or =yay='s. This is why I simply type =purge=.
    #+BEGIN_SRC fish
      abbr purge 'yay -Sc'
    #+END_SRC

    And  if I  want  to simply  seach  among  the =pacman=  repos,  I can  type
 =search=. Otherwise, if I want to include AUR results, I’ll use =yay=.
    #+BEGIN_SRC fish
      abbr search 'pacman -Ss'
    #+END_SRC

    To update everything from the  official repos, I’ll sometimes type =update=
    instead of the full command.
    #+BEGIN_SRC fish
      abbr update 'sudo pacman -Syu'
    #+END_SRC

*** Service management
    :PROPERTIES:
    :CUSTOM_ID: h-3a734119-ccee-4cdf-b04c-d55a37dea571
    :END:
    I don’t have the muscle memory of =systemctl=. So instead, I simply type
 =c= when I want to do something user service related.
    #+BEGIN_SRC fish
      abbr s 'systemctl --user'
    #+END_SRC

    And if I  want to manipulate system  services, I can instead  type a simple
    capital =S=.
    #+BEGIN_SRC fish
      abbr S 'sudo systemctl'
    #+END_SRC

** Development
   :PROPERTIES:
   :CUSTOM_ID: h-32ae38a2-41ad-438e-b619-220a63166115
   :END:
   A good amount of these commands  are development related, especially when it
   comes to compilation or Docker.

*** CMake
    :PROPERTIES:
    :CUSTOM_ID: h-887c87aa-b100-4b27-9006-778fd7e3329c
    :END:
    I have the following abbreviations so I  can quickly run CMake and create a
    configuration for debug or release profiles.
    #+BEGIN_SRC fish
      abbr cdebug 'cmake -DCMAKE_BUILD_TYPE=Debug'
      abbr crelease 'cmake -DCMAKE_BUILD_TYPE=Release'
    #+END_SRC

*** Compilation
    :PROPERTIES:
    :CUSTOM_ID: h-0beb47e5-d76a-4037-8f58-e8de141e3761
    :END:
    By  default, I  set =clang=, =clang++=, =gcc=  and =g++=  to the  latest
    standard and with the =-Wall= flag activated.
    #+BEGIN_SRC fish :tangle
      abbr clang 'clang -Wall'
      abbr clang++ 'clang++ -Wall'
      abbr g++ 'g++ -Wall -std=c++17'
      abbr gcc 'gcc -Wall -std=c18'
    #+END_SRC

*** Docker
    :PROPERTIES:
    :CUSTOM_ID: h-91c7ff90-7b43-4802-be69-5d102281c6d3
    :END:
    And of course, when it comes to  Docker Compose, I don’t have time to write
    the full command, so I use these instead.
    #+BEGIN_SRC fish
      abbr dc docker-compose
      abbr dcd 'docker-compose down'
      abbr dcr 'docker-compose run --rm'
      abbr dcu 'docker-compose up'
      abbr dcub 'docker-compose up --build'
    #+END_SRC

*** Git
    :PROPERTIES:
    :CUSTOM_ID: h-e72347d4-590e-448c-bc33-0a70fa8ab35b
    :END:
    And let’s  face it:  we all  at one point  just wanted  to commit  our code
    without thinking about the message, to  just get over with it. Don’t worry,
    I got you covered.
    #+BEGIN_SRC fish :tangle
      abbr randcommit 'git commit -m (curl -s whatthecommit.com/index.txt)'
    #+END_SRC

*** Prolog
    :PROPERTIES:
    :CUSTOM_ID: h-cbb6c31e-faaa-48c3-a83a-d1f143fdcb8d
    :END:
    When I  launch =swipl=,  I prefer  to have my  terminal cleaned  before and
    after it runs, I find it more clean.
    #+BEGIN_SRC fish
      abbr swipl 'clear && swipl -q && clear'
    #+END_SRC

*** Text editors
    :PROPERTIES:
    :CUSTOM_ID: h-51155e06-872d-4a12-9bf7-ae5eabc256ad
    :END:
    I greatly prefer to use Emacsclient as my main text editor; Emacs has
    basically all I need. So, it’s only normal I have an abbreviation to launch
    a new instance of it.
    #+BEGIN_SRC fish
      abbr e 'emacsclient -c'
    #+END_SRC
    However,  in a  graphical environment,  this  will launch  a new  graphical
    window of Emacs. To launch a terminal instance, I’ll use =enw= (=nw= stands
    for the option “nowindow” =-nw= of Emacs).
    #+BEGIN_SRC fish
      abbr enw 'emacsclient -c -nw'
    #+END_SRC

    I also  have the abbreviation =vi=  which refers to =vim=.  I really should
    learn =vi=, but I also really don’t feel like it.
    #+BEGIN_SRC fish
      abbr vi vim
    #+END_SRC

** LaTeX
   :PROPERTIES:
   :CUSTOM_ID: h-a8f8a707-90d7-4784-982d-d959b183148e
   :END:
   Yes, although  I use org-mode, I  still have some use  for LaTeX, especially
   when it  comes to PDF  exports of my  org files. Hence  why I use  the LaTeX
   package manager. It  is recommended to use =tllocalmgr=  instead of =tlmgr=,
   but I can never  remember the command, and the latter is  faster to type, so
   time for an abbreviation.
   #+BEGIN_SRC fish
   abbr tlmgr tllocalmgr
   #+END_SRC

   #+BEGIN_SRC fish
   abbr texhash 'sudo texhash'
   #+END_SRC

** Some security measures
   :PROPERTIES:
   :CUSTOM_ID: h-dd97ea71-c43f-4b79-8bb7-1f857284b1b4
   :END:
   Some commands can be quite dangerous when  not used properly, which is why I
   added default  flags and  options so  I can get  warnings before  things get
   ugly.
   #+BEGIN_SRC fish
     abbr cp 'cp -i'
     abbr ln 'ln -i'
     abbr lns 'ln -si'
     abbr mv 'mv -i'
     abbr rm 'rm -I'
     abbr rmd 'rm --preserve-root -Ir'
     abbr rmdf 'rm --preserve-root -Irf'
     abbr rmf 'rm --preserve-root -If'
   #+END_SRC
   The =-i= and =-I= add prompts in case  we might not want to do what we asked
   the shell  to do. Notice =lns=  which creates symlinks, =rmd=  which removes
   directories, =rmf=  which forces  deletion,  and =rmdf= which  forces  the
   delition  of  a directory.  Notice  also  the =--preserve-root=  which  will
   prevent me  from accidentally  removing the  root folder.  I added  the same
   option to =chgrp=, =chmod=, and =chown=.
   #+BEGIN_SRC fish
     abbr chgrp 'chgrp --preserve-root'
     abbr chmod 'chmod --preserve-root'
     abbr chown 'chown --preserve-root'
   #+END_SRC

** Typos
   :PROPERTIES:
   :CUSTOM_ID: h-4c5a03cd-20a8-437e-87b7-af990780084e
   :END:
   Let’s admit it, we  all make typos from time to time in  the shell, and some
   are  recurrent  enough we  make  abbreviations  or  aliases of  the  correct
   command.  Well, I  have some  of my  abbreviations which  were make  exactly
   because of this.

   Sometimes  for some  reasons, my  brain makes  me write =clean= instead  of
 =clear=. So, let’s just replace the former by the latter.
   #+BEGIN_SRC fish
   abbr clean clear
   #+END_SRC

   I’m also very bad at typing =exit=.
   #+BEGIN_SRC fish
     abbr exi exit
     abbr exti exit
   #+END_SRC

   And sometimes I suck at typing =htop=.
   #+BEGIN_SRC fish
     abbr hotp htop
   #+END_SRC

** Misc
   :PROPERTIES:
   :CUSTOM_ID: h-3a237ec0-c535-42c7-9c60-3d083745b643
   :END:
   Finally, some miscellaneous abbreviations that don’t really fit into any of
   the above categories.

*** Sudo
    :PROPERTIES:
    :CUSTOM_ID: h-0955e2fc-ec25-41b6-814a-929fa3718dda
    :END:
    First, I make it so that =sudo= comes with the =-A= switch in order to call
    my    custom   graphical    script   for    getting   my    password   (see
    [[file:~/.local/bin/askpass][.local/bin/askpass]]). I also  made it so =please= is an  equivalent to =sudo
    -A= as a joke.
    #+BEGIN_SRC fish
      abbr sudo 'sudo -A'
      abbr please 'sudo -A'
    #+END_SRC

*** Exit
    :PROPERTIES:
    :CUSTOM_ID: h-8cf0e895-b919-41a8-ad3d-c5294dc507fd
    :END:
    Sometimes I find it easier to just type =q= instead of =exit=.
    #+BEGIN_SRC fish
      abbr q exit
    #+END_SRC

*** History
    :PROPERTIES:
    :CUSTOM_ID: h-162052c5-63c4-435a-b973-422346522c69
    :END:
    I also find  it more intuitive and  faster to just write =hist= instead of
 =history=, so let’s declare that.
    #+BEGIN_SRC fish
      abbr hist history
    #+END_SRC

*** Song download from YouTube
    :PROPERTIES:
    :CUSTOM_ID: h-4bc663a9-b609-4c86-9a4d-a220013c67f9
    :END:
    When I  want to  download a song  from YouTube, I’ll  just use  the command
 =flac videoIdentifier= to get it through =youtube-dl=.
    #+BEGIN_SRC fish
      abbr flac 'youtube-dl -x --audio-format flac --audio-quality 0'
    #+END_SRC

*** MPV
    :PROPERTIES:
    :CUSTOM_ID: h-3fd5a7eb-4ed4-4b0b-87ca-28f36fb22793
    :END:
    When it comes to mpv, I do not  want to force it to open a graphical window
    if for example  I want to listen to  an audio file. I also do  not want any
    border on that window. So, I declared this abbreviation.
    #+BEGIN_SRC fish
      abbr mpv 'mpv --no-border --force-window=no'
    #+END_SRC

*** Compression
    :PROPERTIES:
    :CUSTOM_ID: h-05919be3-360a-45c6-8c89-76836375d55b
    :END:
    It seems it’s just like many other people,  but I cannot for the life of me
    remember the syntax  of =tar=. So, I made the  following abbreviations, and
    one day hopefully, after seeing  the abbreviations’ expansion over and over
    I’ll remember the command like I  did for the abbreviation of =remove= (see
    [[#h-281a59aa-4ea0-47ab-a4cc-33fff8d38165][Package management]]).
    #+BEGIN_SRC fish
      abbr compress 'tar -czf'
      abbr untar 'tar -xvzf'
    #+END_SRC

*** Feh
    :PROPERTIES:
    :CUSTOM_ID: h-41cfc583-14ba-4f15-9578-bc37b432a3ce
    :END:
    Some sane default options for =feh=, including auto-zoom to fit the picture
    to the window,  a borderless window, and  again scale the image  to fit the
    window geometry.
    #+BEGIN_SRC fish
      abbr feh 'feh -Zx.'
    #+END_SRC

*** ls
    :PROPERTIES:
    :CUSTOM_ID: h-9980009d-3fc4-4e2e-861b-1af007212f8d
    :END:
    Yep, an  abbreviation of =ls=  called =lsl=. It allows  me to view  all the
    files in a directory as a list with detailed, human-readable information.
    #+BEGIN_SRC fish
      abbr lsl 'ls -ahl'
    #+END_SRC

*** Network Management
    :PROPERTIES:
    :CUSTOM_ID: h-5f9d4866-3086-4ed9-9ff3-d80a0af36593
    :END:
    First, we have just =nmcli= with  sane default options,  that is a  pretty output
    with colors.
    #+BEGIN_SRC fish
      abbr nmcli 'nmcli -p -c auto'
    #+END_SRC

    Next, we  have some  NordVPN-related shortcuts.  The first  one is  a simple
    abbreviation to =nordvpn=. The  second one  is a shortcut  to connect  to a
    server, and to disconnect from the current server.
    #+BEGIN_SRC fish
      abbr n 'nordvpn'
      abbr nc 'nordvpn c'
      abbr nd 'nordvpn d'
    #+END_SRC

    I also  have a couple  of shortcuts to  quickly connect to  some preselected
    countries, mainly France, Germany, Japan and the US.
    #+BEGIN_SRC fish
      abbr ncf 'nordvpn c France'
      abbr ncg 'nordvpn c Germany'
      abbr ncj 'nordvpn c Japan'
      abbr ncu 'nordvpn c United_States'
    #+END_SRC

*** Wget
    :PROPERTIES:
    :CUSTOM_ID: h-74f84f1c-433d-488a-88a7-89915c1a3bd5
    :END:
    By default, continue a download that was interupted.
    #+BEGIN_SRC fish
      abbr wget 'wget -c'
    #+END_SRC