Drop support for ZSH

I've been using Fish consistently for about a month now, and I don't see myself
switching back to ZSH. Some of the code from this commit should be published. I
may get around to that one day. Before I did that, I would need to clean it up
and document it, which I won't be doing today.

Thank you, ZSH, for your service.

README.md

@@ -73,10 +73,9 @@ $ xclip -sel clip <~/.ssh/id_rsa.pub
 $ browse github.com # paste ssh public key in settings
 ```
 
-1. Install Antigen, Vundle, nix-env
+1. Install Vundle, nix-env
 
 ```bash
-$ ln -s ~/Dropbox/antigen.zsh ~/antigen.zsh
 $ ln -s ~/Dropbox/Vundle.vim ~/.config/nvim/bundle/Vundle.vim
 $ cat ~/Dropbox/install_nix.sh | sh
 $ for p in $(cat nix-env.txt); do
@@ -112,10 +111,10 @@ $ DOTFILES="$(pwd)" make install
 
 For now, this deserves its own section since it isn't automated.
 
-```zsh
+```bash
-gclone tj/n       # clone repo
+$ gclone tj/n       # clone repo
-sudo make install # build from source
+$ sudo make install # build from source
-n stable          # install the stable version of node
+$ n stable          # install the stable version of node
 ```
 
 - TODO: support dependencies like terminal themes

configs/shared/.zprofile

@@ -1,12 +0,0 @@
-# ZSH seems to avoid sourcing ~/.profile during SSH sessions.
-# X (or something else) seems to source ~/.profile with it initializes.
-# Putting this here allows my SSH sessions to have the expected configuration.
-#
-# Putting this here instead of in my .zshrc or .zshenv is advantageous since it
-# is only called once when a terminal is created; subshells and nested ZSH
-# sessions don't re-source this file.
-#
-# See this thread for more information: https://groups.google.com/a/google.com/forum/#!topic/zsh-users/VO2lEJRfFzk
-source ~/.profile
-
-export PATH="$HOME/.cargo/bin:$PATH"

configs/shared/.zshrc

@@ -1,89 +0,0 @@
-# Necessary to add this line and keep it at the top of my ~/.zshrc to ensure
-# that Tramp works as expected. This was taken from here:
-# https://www.emacswiki.org/emacs/TrampMode
-[[ $TERM == "dumb" ]] && unsetopt zle && PS1='$ ' && return
-
-source ~/antigen.zsh
-
-# Helper functions
-# TODO: Find a way to share these functions across zsh files.
-defensively_source() {
-  # Checks if the file exists before sourcing it
-  if [ -f $1 ]; then
-    source $1
-  else
-    "Cannot source: $1. Aborting..."
-  fi
-}
-
-command_exists() {
-  # Predicate to check if the command exists
-  command -v $1 >/dev/null
-}
-
-# Load the oh-my-zsh library
-antigen use oh-my-zsh
-
-# Bundles from robbyrussell's oh-my-zsh repo.
-antigen bundle git
-antigen bundle extract         # extracts archives polymorphically
-antigen bundle zsh-completions # extracts archives polymorphically
-
-# Syntax highlighting
-antigen bundle zsh-users/zsh-syntax-highlighting
-
-# Theming
-case $(hostname) in
-  $DESKTOP)     antigen theme frisk;;
-  $LAPTOP)      antigen theme refined;;
-  $CLOUDTOP)    antigen theme cloud;;
-  acer-manjaro) antigen theme frisk;;
-esac
-
-# Leave this last
-antigen apply
-
-# Configure fzf
-if command_exists fzf-share; then
-  source "$(fzf-share)/key-bindings.zsh"
-
-  fzf-locate-widget() {
-    # Press M-i to search entire locate database with fzf.
-    local selected
-    if selected=$(locate / | fzf); then
-      LBUFFER+=$selected
-    fi
-    zle redisplay
-  }
-  zle -N fzf-locate-widget
-  bindkey '\ei' fzf-locate-widget
-
-else
-  defensively_source "/usr/share/fzf/key-bindings.zsh"
-fi
-
-# Configure fasd
-eval "$(fasd --init auto)"
-
-# the above line slows tab-completion down dramatically because it attemtps to
-# autocomplete for the 600k+ users found in `compgen -u`. Below is a fix which
-# also restores the function of `cd ~<tab>` to display only ZSH Named
-# Directories.
-zstyle ':completion:*' users root $USER
-
-# Avoiding the defensive source because I want to ensure these files are
-# available.
-source "$DOTFILES/configs/shared/variables.zsh"
-source "$DOTFILES/configs/shared/aliases.zsh"
-source "$DOTFILES/configs/shared/functions.zsh"
-source "$DOTFILES/configs/shared/zle.zsh"
-
-preexec() {
-  # `preexec` runs before every command is run.
-  update_x11_forwarding
-}
-
-defensively_source ~/.rvm/scripts/rvm         # Ruby
-defensively_source ~/.opam/opam-init/init.zsh # OCaml
-defensively_source ~/.ghcup/env               # Haskell
-defensively_source /etc/bash_completion.d/g4d # Google's g4d

configs/shared/aliases.zsh

@@ -1,255 +0,0 @@
-# Applications
-#   java:       jv
-#   tmux:       t
-#   $EDITOR:    e
-#   vim:        v
-#   GnuPG:      gpg
-#   blaze:      bz
-#   borgcfg:    br
-#   piper:      pi
-#   pass:       ps
-#   pastebin:   pb
-#   pacman:     pm
-#   codesearch: cs
-#   git:        g
-#   mercurial:  hg
-#   aptitude:   apt
-#   chrome:     c
-#   elixir:     ex
-#   haskell:    hk
-#   wifi:       wf
-#   piper:      pp
-#   g4:         pp
-#   g4d:        pp
-#   cci:        circleci
-#
-# Supported qualifiers:
-#   hidden:      h
-#   ignore-case: i
-#
-# Supported verbs:
-#   source:  s
-#   install: i
-#   test:    t
-#   build:   b
-#   list:    ls
-#   shell:   sh
-
-# Misc
-alias c="xclip -selection clipboard -i"
-alias p="xclip -selection clipboard -o"
-alias cp=cp_dwim
-alias mdd=mkdir_cd
-alias mdp='mkdir --parents'
-alias ls="exa              --sort=type"
-alias ll="exa --long       --sort=type"
-alias la="exa --long --all --sort=type"
-alias lorem="echo Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
-alias e="emacsclient --no-wait --create-frame"
-alias cat="bat --theme=TwoDark"
-alias j='fasd_cd -d' # to emulate autojump; my muscle memory is hardened here
-alias vim=nvim # prefer neovim to vim
-alias di=dired
-alias chrome=google-chrome
-alias btctl=bluetoothctl
-alias rg='rg --ignore-case'
-alias rgh='rg --hidden' # By default, rg skips hidden files
-alias fdh='fd --hidden' # By default, rg skips hidden files
-alias define=sdcv # uses stardict to lookup a word
-alias intellij='nohup /opt/intellij-ce-stable/bin/idea.sh >/dev/null 2>&1 &'
-alias tpr='tput reset'
-alias nordvpn='sudo openvpn /etc/openvpn/ovpn_tcp/us3559.nordvpn.com.tcp.ovpn' # connects to the nordvpn servers in USA
-alias perms='ls -ld' # list the permissions of a directory
-alias please='sudo $(fc -ln -1)'
-alias plz=please # for those keystroke-conscience folks
-alias rmrf='rm -rf' # sometimes the dash is just too much...
-alias open=xdg-open
-alias o=open
-alias simple_vim='vim -u ~/.config/nvim/simple.vim' # vim without a zero-dependency vimrc
-alias stopx='sudo service lightdm stop' # stop X server session
-alias next_wallpaper="emacsclient --eval '(wallpaper/next)'" # Cycles forwards one wallpaper.
-alias prev_wallpaper="emacsclient --eval '(wallpaper/prev)'" # Cycles backwards one wallpaper.
-
-# filesystem
-alias files=laf
-alias dirs=lad
-alias links=lal
-
-# device / power mgt
-alias off='shutdown now' # TODO: Consider using `systemctl poweroff`
-alias suspend='systemctl suspend'
-alias hibernate='systemctl hibernate'
-
-# pass
-alias pscp='pass show --clip'
-
-# nmcli
-# NOTE: check out `tldr nmcli` for more information
-alias wfls='nmcli device wifi' # list available wifi network
-alias wfc='nmcli device wifi connect' # connect to a Wifi network
-
-# Gnome
-alias na=nautilus # Gnome's graphical file browser. Useful to click and dragging files into emails
-
-# Tmux
-alias tls='tmux list-sessions'
-alias ta='tmux attach' # NOTE: `t` works for this as well
-alias td='tmux detach' # prefer using the KBD for this (i.e. <leader>d)
-
-# Chrome
-alias cssh='chrome --app-id=pnhechapfaindjhompbnflcldabbghjo' # Secure Shell
-alias crd='chrome --app-id=gbchcmhmhahfdphkhkmpfmihenigjmpp'  # Chrome Remote Desktop
-
-# Dropbox
-alias drst='dropbox.py status'
-
-# Docker
-alias dk="docker"
-alias dkps="docker ps"
-alias dkpsa="docker ps -a"
-alias dkrm="docker rm"
-alias dkrmi="docker rmi"
-alias dkrd="docker run -d"
-alias dki="docker images"
-
-# Java
-alias jvsh='CLASSPATH=$(fd \\.jar$ ~pro/jars | tr \\n :) jshell'
-
-# Elixir
-alias m="mix"
-alias mc="mix compile"
-alias mcf="mix compile --force"
-alias ism="iex -S mix"
-alias tism="MIX_ENV=test iex -S mix"
-alias mdg="mix deps.get"
-alias mdu="mix deps.update"
-alias mdup="mix docker.up"
-alias repl_ex='dkish elixir iex' # depends on the docker aliases
-
-# Clojure
-alias repl_clj='dkish clojure lein repl'
-
-# GPG
-alias gpged='gpg --edit-key wpcarro@gmail.com'
-alias gpge='gpg --encrypt'
-alias gpgd='gpg --decrypt'
-alias gpgls='gpg --list-keys'
-
-# Git
-alias g="git"
-alias glp='git log --graph --pretty=format:"%Cred%h%Creset -%Cblue %an %Creset - %C(yellow)%d%Creset %s %Cgreen(%cr)%Creset" --abbrev-commit --date=relative'
-alias git="hub"
-alias gprom="git pull --rebase origin master"
-alias gca="git commit --amend"
-alias gcan="git commit --amend --no-edit"
-alias gpf="git push --force"
-alias gpff="git push --force --no-verify"
-alias gds="git diff --staged"
-alias gfx="git commit --fixup"
-alias gsh="git show"
-alias gbm="git branch --merged"
-alias gwip="git add . && git commit -m wip"
-alias gpr="git pull-request"
-alias gst="git status && hub pr list" # git status and list open hub PRs (if is a GH repository)
-
-# Mercurial
-# The attempt here is to map my well-known, existing `git` aliases to their
-# Mercurial counterparts. Some may map 1:1, others may be like putting a square
-# peg into a round hole. I will try and use my best judgement in these cases
-# while erring on the side of unifying the two APIs.
-alias hgst='PAGER="" hg status'
-alias hglp='hg xl'
-alias hgp='hg uploadchain' # this is like `git push`
-alias hga='hg add'
-alias hgc='hg commit'
-alias hgcan='hg amend' # like `git commit --amend --no-edit'
-alias hgpr='hg mail -r . -m' # this may be similar to `hub pull-request`
-alias hgd='hg diff'
-alias hgsh='hg export'
-alias hgco='hg update'
-alias hgls='hg citc --list' # should have different output from `pils`
-alias hgrc='hg rebase --continue'
-alias hgra='hg rebase --abort'
-alias hgconflicts="hg resolve --list 'set:unresolved()'" # much like `gconflicts`
-alias hgrm='hg citc -d' # delete a CitC client created with Fig
-
-# Piper
-alias ppls='g4 listclients | sed "s/^Client wpcarro://" | sed "s/:[0-9]*:citc.*$//g"'
-alias pprm='p4 citc -d -f' # warning this will forcefully delete a CitC client even if contains pending changes
-
-# Haskell
-alias sb="stack build"
-alias se="stack exec --"
-alias sc="stack clean"
-# alias st="stack test" # blocks suckless-terminal
-alias haddocks='open "$(stack path --local-doc-root)/index.html"'
-alias repl_hk='dkish haskell ghci'
-
-# Kubernetes
-alias kc="kubectl"
-alias kpods="kubectl get pods"
-alias knodes="kubectl get nodes"
-alias kdeploys="kubectl get deployments"
-alias kdns="kubectl get ing"
-alias kedit="kubectl edit deployments "
-alias kswitch="gcloud container clusters get-credentials "
-
-# Nix
-alias nq="nix_introspect"
-alias nsh="nix-shell"
-alias nshp="nix-shell --pure"
-alias nr="nix repl"
-alias ni='nix-env --install'
-alias nrm='nix-env --uninstall'
-alias nls='nix-env --query'
-alias nrs='sudo nixos-rebuild switch'
-
-# Aptitude (apt)
-alias apti='sudo apt-get install --assume-yes'
-alias aptrm='sudo apt remove'
-
-# Pacman
-alias pmi='sudo pacman -S --noconfirm'
-alias pms='pacman -Ss'
-alias pmrm='sudo pacman -Rs'
-
-# couple the e* aliases to the <leader>e* kbds in vim
-alias ev='e ~/.config/nvim/init.vim'
-alias ee='e ~/.emacs.d/init.el'
-alias ez='e ~/.zshrc'
-alias ea='e ~/aliases.zsh'
-alias ef='e ~/functions.zsh'
-alias el='e ~/variables.zsh'
-alias ex='e ~/.Xresources'
-alias em='e ~/.tmux.conf'
-# TODO: consider DRYing this up with `e`. Unfortunately, `sudo` won't support
-# aliases.
-alias en='sudo ALTERNATE_EDITOR=nvim emacsclient --no-wait --create-frame /etc/nixos/configuration.nix'
-
-# couple the s* aliases to the <leader>s* kbds in vim
-alias sz='source ~/.zshrc'
-alias sa='source ~/aliases.zsh'
-alias sf='source ~/functions.zsh'
-alias sl='source ~/variables.zsh'
-alias sx='xrdb ~/.Xresources'
-alias sm='tmux source-file ~/.tmux.conf'
-alias sn='sudo nixos-rebuild switch'
-
-# CircleCI
-alias cci='circleci local'
-alias ccijob='circleci local execute --job'
-
-# Google aliases
-alias bzb='blaze build'
-alias bzt='blaze test --test_output=all'
-alias br='borgcfg'
-alias pils='p4 listclients'
-alias pirm='p4 citc -d'
-alias pb=/google/src/head/depot/eng/tools/pastebin
-alias pbc='pb --private --title $(date +${date_fmt})| tee >(c && chrome $(p))' # create a private gPaste from your clipboard's content; open the result in a browser
-alias pbcp='p | pb --private --title $(date +${date_fmt})| tee >(c && chrome $(p))' # create a private gPaste from your clipboard's content; open the result in a browser
-alias pbls='$BROWSER https://paste.googleplex.com/$(whoami)'
-alias flagpick=/google/data/ro/users/sk/skaushik/www/public-tools/flagpick
-alias jaze=/google/data/ro/projects/devtools/javascript/jaze
-alias aclcheck=/google/data/ro/projects/ganpati/aclcheck
-alias g3python=/google/data/ro/projects/g3python/g3python

configs/shared/variables.zsh

@@ -1,66 +0,0 @@
-export GPG_TTY=$(tty) # "It is important that this environment variable always reflects the output of the tty command". Source: https://gnupg.org/documentation/manuals/gnupg-devel/Invoking-GPG_002dAGENT.html
-
-date_fmt=%b-%d-%Y_%T # my preferred date formatting string used for generated filename
-
-# ZSH's static named directories
-hash -d pro=~/programming
-hash -d dot="$DOTFILES"
-hash -d wpg=~/.config/wpg/templates
-hash -d citc=/google/src/cloud/$USER
-hash -d doc=~/Documents
-hash -d d=~/Downloads
-hash -d ss=~/Pictures/screenshots
-hash -d fonts="$DOTFILES/configs/shared/.local/share/fonts"
-hash -d sounds="$DOTFILES/configs/shared.local/share/sounds"
-hash -d wallpaper="$DOTFILES/configs/shared/.local/share/wallpaper"
-hash -d org="$ORG_DIRECTORY"
-hash -d x20=/google/data/rw/users/wp/wpcarro # remember: to access x20, you need to run `prodaccess`
-hash -d experimental=./experimental/users/wpcarro
-# named directories for commonly used projects
-hash -d korvus_framework=./java/com/google/corp/sales
-hash -d korvus_services=./corp/sales/casesautomation
-hash -d escalations=./corp/gtech/pto/tda/beacons_extension
-hash -d ultra=./ads/doubleclick/systems/crm
-hash -d incentives_fe=./experimental/adservices/jarvis/jarvis_extension/jarvis_staging/js
-hash -d incentives_be=./experimental/adservices/tesseract/handlers/incentives
-hash -d spewall_fe=./alkali/apps/speakeasydashboard
-hash -d spewall_be=./java/com/google/alkali/applications/speakeasydashboard
-hash -d spewall_protos=./google/internal/alkali/applications/speakeasydashboard
-hash -d spewall_tests=./javatests/com/google/alkali/applications/speakeasydashboard
-
-# 8-bit colors
-black='\u001b[30m'
-red='\u001b[31m'
-green='\u001b[32m'
-yellow='\u001b[33m'
-blue='\u001b[34m'
-magenta='\u001b[35m'
-cyan='\u001b[36m'
-white='\u001b[37m'
-bright_black='\u001b[30;1m'
-bright_red='\u001b[31;1m'
-bright_green='\u001b[32;1m'
-bright_yellow='\u001b[33;1m'
-bright_blue='\u001b[34;1m'
-bright_magenta='\u001b[35;1m'
-bright_cyan='\u001b[36;1m'
-bright_white='\u001b[37;1m'
-
-# some of my favorite emojis as unicode
-facepalm='\U1F926'
-eyeroll='\U1F644'
-sheesh='\U1F62C'
-see_no_evil='\U1F648'
-blush='\U1F60A'
-wink='\U1F609'
-laugh='\U1F923'
-
-# commonly used config files
-v="$HOME/.config/nvim/init.vim"
-e="$HOME/.emacs.d/init.el"
-z="$HOME/.zshrc"
-a="$HOME/aliases.zsh"
-f="$HOME/functions.zsh"
-l="$HOME/variables.zsh" # v is taken by vim
-x="$HOME/.Xresources"
-n="/etc/nixos/configuration.nix"

configs/shared/zle.zsh

@@ -1,31 +0,0 @@
-#!/usr/bin/env zsh
-
-zle_insert_subshell() {
-  LBUFFER+='$(' ; RBUFFER=")$RBUFFER"
-}
-zle -N zle_insert_subshell
-bindkey '^j' zle_insert_subshell
-
-zle_insert_variable() {
-  LBUFFER+='${' ; RBUFFER="}$RBUFFER"
-}
-zle -N zle_insert_variable
-bindkey '^v' zle_insert_variable
-
-zle_insert_2x_dash() {
-  LBUFFER+=' --'
-}
-zle -N zle_insert_2x_dash
-bindkey '^[^f' zle_insert_2x_dash
-
-zle_insert_2x_quote() {
-  LBUFFER+=' "' ; RBUFFER="\"$RBUFFER"
-}
-zle -N zle_insert_2x_quote
-bindkey '^["' zle_insert_2x_quote
-
-zle_insert_quote() {
-  LBUFFER+=" '" ; RBUFFER="'$RBUFFER"
-}
-zle -N zle_insert_quote
-bindkey "^['" zle_insert_quote