🐟 Switch to Fish shell

It's about the time for a better interactive
shell experience. We can do better than Apple,
we can do better than ZSH. The "leap year" of
the shell is best modeled by Fish.

I still use Bash, but want to use it only
secondarily. I used Bash from 2016-2020
primarily, only because of wanting to keep
memory fresh of how to work with legacy
systems with only a POSIX/Bash console.

 * Mod+Enter now spawns fish shells.
 * Mod+Shift+Enter added for default
   (99.99% Bash in today's systems)

Fish is better most immediately because
of how it deals with aliases. The `abbr`
feature alone makes Fish compelling for
the daily shell user.

Added a `_setup` script which for now,
only contains the fisher setup.

.aliases

@@ -44,7 +44,14 @@ function dotfile_update() {
 }
 export -f dotfile_update
 
-# Hide untracked items by default
+###
+## Git aliases
+## 
+## Brevity is preferred here, to enable
+## robust and expedited SCM management.
+###
+alias g="git"
+# Hides untracked items by default
 alias s="git status -uno"
 alias a="git add -u"
 alias r="git reset HEAD"

.config/fish/config.fish

@@ -1 +1,22 @@
-set fish_greeting "The quieter you become, the more you are able to hear."
+set fish_greeting "The Quieter you Become, the More you are able to Hear."
+
+abbr -a -g l ls -ltrah
+abbr -a -U pbcopy xclip -selection c
+
+# git aliases
+abbr -a -g g git
+abbr -a -g s git status -uno
+abbr -a -g a git add -u
+abbr -a -g r git reset HEAD
+abbr -a -g p git pull --rebase
+abbr -a -g P git push
+abbr -a -g H git show HEAD
+abbr -a -g x git checkout --
+abbr -a -g c git commit -v
+abbr -a -g C git commit --amend --no-edit
+
+# check entropy
+abbr -a -g S cat /proc/sys/kernel/random/entropy_avail
+
+# super diff
+# todo: port

.config/i3/config

@@ -169,8 +169,10 @@ bindsym $mod+$X4 exec $term -e htop
 # Use Mouse+$mod to drag floating windows to their wanted position
 floating_modifier $mod
 
-# App launching hotkeys
-bindsym $mod+Return   exec $term
+# Mod+Enter: default to fish, fallback to Bash with shift
+bindsym $mod+Return        exec $term -e fish
+bindsym $mod+Shift+Return  exec $term
+
 # Freedom first
 bindsym $mod+C        exec firefox
 bindsym $mod+alt+C    exec killall firefox && firefox

bin/_setup

@@ -0,0 +1,6 @@
+#!/usr/bin/fish
+
+# Install fisher (package manager for fish)
+curl -sL git.io/fisher | source && fisher install jorgebucaran/fisher
+
+fisher install jethrokuan/fzf