Manage fish with home-manager

I patched home-manager locally to support fzf keybindings for fish. I will PR
this into home-manager, but I haven't yet, which means that my home.nix file
depends on my local ~/home-manager.

3 files changed, 113 insertions, 249 deletions

diff --git a/configs/.config/fish/config.fish b/configs/.config/fish/config.fish
deleted file mode 100644
index 552b5d1c9b33..000000000000
--- a/configs/.config/fish/config.fish
+++ /dev/null
@@ -1,249 +0,0 @@
-# While I work use a variety of programs, below of some of my more commonly used
-# programs that I have decided to support with aliases.
-# Applications
-#   java:       jv
-#   tmux:       t
-#   $EDITOR:    e
-#   vim:        v
-#   GnuPG:      gpg
-#   blaze:      bz
-#   borgcfg:    br
-#   piper:      pi
-#   pass:       ps
-#   pastebin:   pb
-#   pacman:     pm
-#   codesearch: cs
-#   git:        g
-#   mercurial:  hg
-#   aptitude:   apt
-#   chrome:     c
-#   elixir:     ex
-#   haskell:    hk
-#   wifi:       wf
-#   piper:      pp
-#   g4:         pp
-#   g4d:        pp
-#   cci:        circleci
-#
-# Below are some common modifiers or flags that programs support.
-# Supported qualifiers:
-#   hidden:      h
-#   ignore-case: i
-#
-# I've found that much of my time is spent working with programs that support
-# some many of the following actions.
-# Supported verbs:
-#   source:  s
-#   install: i
-#   test:    t
-#   build:   b
-#   list:    ls
-#   shell:   REPL
-#
-# Commentary:
-# Ideally a file like this would be either unnecessary in the case of a fully
-# embraced Emacs workflow or compiled from some high-level language like
-# Elisp.
-
-# Adding this to support tramp.
-if test "$TERM" = "dumb"
-    function fish_prompt
-        echo "\$ "
-    end
-    function fish_right_prompt; end
-    function fish_greeting; end
-    function fish_title; end
-else
-    # Remove the default greeting from fish
-    set fish_greeting ""
-
-    # Prompt
-    function fish_prompt
-        # My custom prompt.
-        #
-        # Design objectives:
-        # - max-length <= 80 characters
-        # - minimal
-        # - no dependencies (well, you know what I mean)
-        #
-        # Components
-        # - ssh connection
-        # - user
-        # - host
-        # - git repo
-        # - git branch
-        # - lambda character as prompt
-
-        # Cache status before we overwrite it.
-        set -l last_status $status
-
-        # Colors
-        set -l color_inactive (set_color red --bold)
-        set -l color_active (set_color green --bold)
-        set -l color_normal (set_color normal)
-
-        # SSH information
-        if set -q SSH_CLIENT; or set -q SSH_TTY
-            echo -en "$color_active \bssh ✓ [$color_normal$USER@"(hostname)"$color_active]$color_normal"
-        else
-            echo -en "$color_inactive \bssh ✗ [$color_normal$USER@"(hostname)"$color_inactive]$color_normal"
-        end
-
-        # Separator
-        echo -n " "
-
-        # Git information
-        set -l git_repo (git rev-parse --show-toplevel 2>/dev/null)
-        set -l git_status $status
-        set -l dir_parent (basename (realpath ..))
-        set -l dir_current (basename (realpath .))
-        if test $git_status -eq 0
-            set -l git_repo_name (basename (git rev-parse --show-toplevel))
-            set -l git_branch (git branch 2>/dev/null | grep '^\*' | cut -d' ' -f2-)
-            echo -en "$color_active \bgit ✓ [$color_normal$git_branch$color_active|$color_normal$git_repo_name$color_active|$color_normal$dir_parent/$dir_current$color_active]$color_normal"
-        else
-            echo -en "$color_inactive \bgit ✗ [$color_normal$dir_parent/$dir_current$color_inactive]$color_normal"
-        end
-
-        # Newline
-        echo
-
-        # Handle root vs non-root
-        if [ "$USER" = "root" ]
-            set -g prompt_sigil "#"
-        else
-            set -g prompt_sigil "λ"
-        end
-
-        # TODO(wpcarro): For root directories like /tmp, there will not be a parent
-        # directory. Support these directories.
-        set -l time (date +"%T")
-        if test $last_status -eq 0
-            # TODO(wpcarro): I'd prefer to use black here instead of white, but for
-            # some reason white is black and black is invisible.
-            set -l color_prompt (set_color white --bold)
-            echo -n "$time$color_prompt $prompt_sigil$color_normal "
-        else
-            set -l color_prompt (set_color red --bold)
-            echo -n "$time$color_prompt $prompt_sigil$color_normal "
-        end
-    end
-
-    # Setup fzf for fuzzily finding commands, files, directories
-    source (fzf-share)/key-bindings.fish && fzf_key_bindings
-
-    # TODO: What is the difference between `source` and `eval`
-    # direnv
-    eval (direnv hook fish)
-
-    # Miscellaneous
-    alias c='xclip -selection clipboard -i'
-    alias p='xclip -selection clipboard -o'
-    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 cat='bat --theme=TwoDark'
-    alias vim=nvim
-    alias rg='rg --ignore-case'
-    alias rgh='rg --hidden' # By default, rg skips hidden files
-    alias fdh='fd --hidden' # By default, fd skips hidden files
-    alias tpr='tput reset'
-    alias define=sdcv # uses stardict to lookup a word
-    alias perms='ls -ld' # list the permissions of a directory
-    alias rmrf='rm -rf' # sometimes the space and dash are too much...
-    alias open=xdg-open
-    alias stopx='sudo service lightdm stop' # stop X server session
-    alias please='eval sudo $history[1]'
-    alias chrome=google-chrome
-    alias sys='systemctl'
-    alias sysu='systemctl --user'
-
-    # Filesystem
-    # TODO: Depend on `mkdir_cd`.
-    alias mdd=mkdir_cd
-    alias ls='exa --sort=type'
-    alias ll='exa --long --sort=type'
-    alias la='exa --long --all --sort=type'
-    # TODO: Depend on these functions once they're defined.
-    alias files=laf
-    alias dirs=lad
-    alias links=lal
-
-    # Device and power management
-    alias off='shutdown now'
-    alias suspend='systemctl suspend'
-    alias hibernate='systemctl hibernate'
-
-    # TODO: Debug `Error: No interface specified.`.
-    alias wfls='nmcli device wifi'
-    alias wfc='nmcli device connect'
-
-    # Tmux
-    alias tls='tmux list-sessions'
-    alias ta ='tmux attach'
-    alias td ='tmux detach'
-
-    # Dropbox
-    alias drst='dropbox.py status'
-
-    # GPG
-    alias gpged='gpg --edit-key wpcarro@gmail.com'
-    alias gpge='gpg --encrypt'
-    alias gpgd='gpg --decrypt'
-    alias gpgls='gpg --list-keys'
-
-    # 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 ga='git add'
-    alias gc='git commit'
-    alias gco='git checkout'
-    alias gd='git diff'
-    alias gp='git push'
-    alias grbi='git rebase --interactive'
-    alias grba='git rebase --abort'
-    alias grbc='git rebase --continue'
-    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 gwip='git add . && git commit -m wip'
-    alias gpr='git pull-request'
-    alias gst='git status'
-
-    # 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='hg status'
-    alias hglp'=hg xl'
-    alias hgp='hg uploadchain'
-    alias hga='hg add'
-    alias hgc='hg commit'
-    alias hgcan='hg amend'
-    alias hgpr='hg mail -r . -m'
-    alias hgd='hg diff'
-    alias hgsh='hg export'
-    alias hgco='hg update'
-    alias hgls='hg citc --list'
-    alias hgrc='hg rebase --continue'
-    alias hgra='hg rebase --abort'
-    alias hgrm='hg citc -d'
-    alias hgconflicts='hg resolve --list "set:unresolved()"'
-
-    # Aptitude (apt)
-    alias apti='sudo apt-get install --assume-yes'
-    alias aptrm='sudo apt remove'
-
-    # Google stuff
-    alias bzb='blaze build'
-    alias bzt='blaze test --test_output=all'
-    alias br=borgcfg
-    alias pils='p4 listclients'
-    alias pirm='p4 citc -d'
-    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.
-    alias aclcheck=/google/data/ro/projects/ganpati/aclcheck
-end
diff --git a/configs/.config/fish/prompt.fish b/configs/.config/fish/prompt.fish
new file mode 100644
index 000000000000..17d807da0f02
--- /dev/null
+++ b/configs/.config/fish/prompt.fish
@@ -0,0 +1,82 @@
+# When the Emacs SSH client, Tramp, connects to a remote host that uses Fish,
+# it's important to keep the shell prompt simple so that Tramp can parse it.
+if test "$TERM" = "dumb"
+    function fish_prompt
+        echo "\$ "
+    end
+    function fish_right_prompt; end
+    function fish_greeting; end
+    function fish_title; end
+else
+    function fish_prompt
+        # My custom prompt.
+        #
+        # Design objectives:
+        # - max-length <= 80 characters
+        # - minimal
+        # - no dependencies (well, you know what I mean)
+        #
+        # Components
+        # - ssh connection
+        # - user
+        # - host
+        # - git repo
+        # - git branch
+        # - lambda character as prompt
+
+        # Cache status before we overwrite it.
+        set -l last_status $status
+
+        # Colors
+        set -l color_inactive (set_color red --bold)
+        set -l color_active (set_color green --bold)
+        set -l color_normal (set_color normal)
+
+        # SSH information
+        if set -q SSH_CLIENT; or set -q SSH_TTY
+            echo -en "$color_active \bssh ✓ [$color_normal$USER@"(hostname)"$color_active]$color_normal"
+        else
+            echo -en "$color_inactive \bssh ✗ [$color_normal$USER@"(hostname)"$color_inactive]$color_normal"
+        end
+
+        # Separator
+        echo -n " "
+
+        # Git information
+        set -l git_repo (git rev-parse --show-toplevel 2>/dev/null)
+        set -l git_status $status
+        set -l dir_parent (basename (realpath ..))
+        set -l dir_current (basename (realpath .))
+        if test $git_status -eq 0
+            set -l git_repo_name (basename (git rev-parse --show-toplevel))
+            set -l git_branch (git branch 2>/dev/null | grep '^\*' | cut -d' ' -f2-)
+            echo -en "$color_active \bgit ✓ [$color_normal$git_branch$color_active|$color_normal$git_repo_name$color_active|$color_normal$dir_parent/$dir_current$color_active]$color_normal"
+        else
+            echo -en "$color_inactive \bgit ✗ [$color_normal$dir_parent/$dir_current$color_inactive]$color_normal"
+        end
+
+        # Newline
+        echo
+
+        # Handle root vs non-root
+        if [ "$USER" = "root" ]
+            set -g prompt_sigil "#"
+        else
+            set -g prompt_sigil "λ"
+        end
+
+        # TODO(wpcarro): For root directories like /tmp, there will not be a parent
+        # directory. Support these directories.
+        set -l time (date +"%T")
+        if test $last_status -eq 0
+            set -l color_prompt (set_color white --bold)
+            echo -n "$time$color_prompt $prompt_sigil$color_normal "
+        else
+            set -l color_prompt (set_color red --bold)
+            echo -n "$time$color_prompt $prompt_sigil$color_normal "
+        end
+    end
+    function fish_right_prompt; end
+    function fish_greeting; end
+    function fish_title; end
+end
diff --git a/configs/.config/nixpkgs/home.nix b/configs/.config/nixpkgs/home.nix
index d9b3cae931a8..c5765a843cff 100644
--- a/configs/.config/nixpkgs/home.nix
+++ b/configs/.config/nixpkgs/home.nix
@@ -71,9 +71,40 @@
     };
   };
 
+  programs.fish = {
+    enable = true;
+    shellAliases = {
+      c = "xclip -selection clipboard -i";
+      p = "xclip -selection clipboard -o";
+      cat = "bat";
+      rgh = "rg --hidden";
+      fdh = "fd --hidden";
+      tpr = "tput reset";
+      ls = "exa --sort=type";
+      ll = "exa --long --sort=type";
+      la = "exa --long --all --sort=type";
+      gst = "git status";
+      gsh = "git show HEAD";
+      gpf = "git push --force-with-lease";
+      gd = "git diff";
+    };
+    shellAbbrs = {
+      sys = "systemctl";
+      sysu = "systemctl --user";
+    };
+    promptInit = builtins.readFile ../fish/prompt.fish;
+  };
+
   programs.fzf = rec {
+    enable = true;
     defaultCommand = "fd --hidden --follow --exclude '.git'";
     fileWidgetCommand = defaultCommand;
+    enableFishIntegration = true;
+  };
+
+  programs.direnv = {
+    enable = true;
+    enableFishIntegration = true;
   };
 
   ##############################################################################