.bashrc

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
shopt -s globstar

# make less more friendly for non-text input files, see lesspipe(1)
#[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

#
# Smarter completion
#

# Perform file completion in a case insensitive fashion
bind "set completion-ignore-case on"

# Treat hyphens and underscores as equivalent
bind "set completion-map-case on"

# Show all possible completions if not specific enough
bind 'set show-all-if-ambiguous on'

# Immediately add a trailing slash when autocompleting symlinks to directories
bind "set mark-symlinked-directories on"

# Prepend cd to directory names automatically
shopt -s autocd 2> /dev/null

# Correct spelling errors during tab-completion
shopt -s dirspell 2> /dev/null

# Correct spelling errors in arguments supplied to cd
shopt -s cdspell 2> /dev/null

#
# History options
#

# Append to the history file, don't overwrite it
shopt -s histappend

# Save multi-line commands as one command
shopt -s cmdhist

# For setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=10000
HISTFILESIZE=20000

# Avoid duplicate entries and lines starting with space
HISTCONTROL="erasedups:ignoreboth"

# Don't record some commands
export HISTIGNORE="&:[ ]*:cd:ls:y:clear:bash:exit:history:reboot:\
    btop:ptop:ff:sys:lg:y";

#
# Prompt
#

# Chroot name (if any)
[ -r /etc/debian_chroot ] && debian_chroot=$(< /etc/debian_chroot)

# Enable color if supported
case "$TERM" in
   	*-256color|alacritty|foot) color_prompt=yes ;;
esac

if [ "$color_prompt" = yes ]; then
   	# Default prompt
    # PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '

   	# # Timing code from https://stackoverflow.com/a/34812608
#    timer_now() {
   	# 	date +%s%N
   	# }

   	# Dynamic prompt function
   	set_prompt() {
   	# 	local timer_show=""
   	# 	if [[ -n "$timer_start" ]]; then
   	# 	    local now=$(timer_now)
   	# 	    local delta_us=$(( (now - timer_start) / 1000 ))

   	# 	    local us=$((delta_us % 1000))
   	# 	    local ms=$(((delta_us / 1000) % 1000))
   	# 	    local s=$(((delta_us / 1000000) % 60))
   	# 	    local m=$(((delta_us / 60000000) % 60))
   	# 	    local h=$((delta_us / 3600000000))

   	# 	    if ((h > 0)); then timer_show=${h}h${m}m
   	# 	    elif ((m > 0)); then timer_show=${m}m${s}s
   	# 	    elif ((s >= 10)); then timer_show=${s}.$((ms / 100))s
   	# 	    elif ((s > 0)); then timer_show=${s}.$(printf %03d $ms)s
   	# 	    elif ((ms >= 100)); then timer_show=${ms}ms
   	# 	    elif ((ms > 0)); then timer_show=${ms}.$((us / 100))ms
   	# 	    else timer_show=${us}us
   	# 	    fi
   	# 	fi

   	#     local last_exit=$__LAST_EXIT

   	    local last_exit=$?

  		# # Regular text colors
  		# local BLACK='\[\e[0;30m\]'
  		local RED='\[\e[0;31m\]'
  		# local GREEN='\[\e[0;32m\]'
  		# local YELLOW='\[\e[0;33m\]'
  		# local BLUE='\[\e[0;34m\]'
  		# local MAGENTA='\[\e[0;35m\]'
  		# local CYAN='\[\e[0;36m\]'
  		local WHITE='\[\e[0;37m\]'

  		# Bold text colors
  		# local BBLACK='\[\e[1;30m\]'
  		local BRED='\[\e[1;31m\]'
  		local BGREEN='\[\e[1;32m\]'
  		local BYELLOW='\[\e[1;33m\]'
  		local BBLUE='\[\e[1;34m\]'
  		local BMAGENTA='\[\e[1;35m\]'
  		local BCYAN='\[\e[1;36m\]'
  		# local BWHITE='\[\e[1;37m\]'

  		# # Background colors
  		# local BGBLACK='\[\e[40m\]'
  		# local BGRED='\[\e[41m\]'
  		# local BGGREEN='\[\e[42m\]'
  		# local BGYELLOW='\[\e[43m\]'
  		# local BGBLUE='\[\e[44m\]'
  		# local BGMAGENTA='\[\e[45m\]'
  		# local BGCYAN='\[\e[46m\]'
  		# local BGWHITE='\[\e[47m\]'

   	    local CHROOT='${debian_chroot:+'"$BMAGENTA"'($debian_chroot) '"$WHITE"'}'
  		local NIX=""
  		if [[ -n "$IN_NIX_SHELL" ]]; then
  		    NIX="$BBLUE(nix-shell)$WHITE "
  		fi
  		local CONDA=""
  		if [[ -n "$CONDA_DEFAULT_ENV" ]]; then
  		    CONDA="$BRED($CONDA_DEFAULT_ENV) $WHITE"
  		fi
  		local VENV=""
  		if [[ -n "$VIRTUAL_ENV_PROMPT" ]]; then
  		    # Strip whitespace
  		    local v="${VIRTUAL_ENV_PROMPT//[[:space:]]/}"
  		
  		    # Add parentheses if missing
  		    if [[ "$v" != \(*\) ]]; then
  		        v="($v)"
  		    fi
  		
 			# Formatted like "(venv_name) "
  		    VENV="$BMAGENTA$v "
  		fi

   	    local USER="$BGREEN\u"
  		local AT="$BMAGENTA@"
  		local HOST="$BCYAN\h$WHITE"
  		local DIRECTORY="$BYELLOW\w"

  		# Red # for root
  		# Red $ on failed command
  		# White $ otherwise
   	    local symbol
   	    if [ "$UID" -eq 0 ]; then
   	        symbol="$RED#$WHITE "
   	    elif [ "$last_exit" -eq 0 ]; then
   	        symbol="$WHITE\$ "
   	    else
   	        symbol="$RED\$ $WHITE"
   	    fi

   	    PS1="$CHROOT$NIX$CONDA$VENV$USER$AT$HOST:$DIRECTORY$symbol"
   	    # PS1="($timer_show) $VENV$CHROOT$USER$HOST:$DIRECTORY$symbol"
   	}

   	# trap 'timer_start=$(timer_now)' DEBUG
   	# PROMPT_COMMAND='__LAST_EXIT=$?; set_prompt'
   	PROMPT_COMMAND='set_prompt'
else
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
fi
unset color_prompt

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    ;;
*)
    ;;
esac

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    #alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    #alias grep='grep --color=auto'
    #alias fgrep='fgrep --color=auto'
    #alias egrep='egrep --color=auto'
fi

# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

# Alias definitions.
if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
    if [ -f /usr/share/bash-completion/bash_completion ]; then
        . /usr/share/bash-completion/bash_completion
    elif [ -f /etc/bash_completion ]; then
        . /etc/bash_completion
    fi
fi

#
# Enable CLI tools enhancements
#

# Show a warning only in interactive shells
_warn_missing() {
    [[ $- == *i* ]] && printf 'Warning: %s not found; skipping %s\n' "$1" "$2" >&2
}

# Enable fzf
if command -v fzf >/dev/null 2>&1; then
    [ -f ~/.fzf.bash ] && source ~/.fzf.bash
else
    _warn_missing fzf "fzf initialization"
fi

# Enable zoxide and replace cd (can also use cdi to search cd history)
if command -v zoxide >/dev/null 2>&1; then
    eval "$(zoxide init bash --cmd cd)"
else
    _warn_missing zoxide $'zoxide initialization\n\tInstall through package manager or with: curl -sSfL https://raw.githubusercontent.com/ajeetdsouza/zoxide/main/install.sh | sh'
fi

# Enable batman (colored man pages)
if command -v batman >/dev/null 2>&1; then
    eval "$(batman --export-env)"
else
    _warn_missing batman "batman initialization"
fi

# Enable batpipe (colored less)
if command -v batpipe >/dev/null 2>&1; then
    eval "$(batpipe)"
else
    _warn_missing batpipe "batpipe initialization"
fi

# Enable atuin for better bash history (atuin needs bash-preexec)
if command -v atuin >/dev/null 2>&1; then
   	if [[ -f ~/.bash-preexec.sh ]]; then
        source ~/.bash-preexec.sh
        eval "$(atuin init bash)"
    else
   	    _warn_missing ~/.bash-preexec.sh $'atuin initialization\n\tInstall with: curl -fsSL https://raw.githubusercontent.com/rcaloras/bash-preexec/master/bash-preexec.sh -o ~/.bash-preexec.sh'
    fi
else
    _warn_missing atuin $'atuin initialization\n\tInstall through package manager or with: curl --proto '=https' --tlsv1.2 -LsSf https://setup.atuin.sh | sh'
fi


# Direnv integration
if command -v direnv >/dev/null 2>&1; then
   	eval "$(direnv hook bash)"
else
   	_warn_missing direnv "direnv initialization"
fi


# Use yazi shell wrapper to enable changing cwd from yazi
if command -v yazi >/dev/null 2>&1; then
    function y() {
       	local tmp="$(mktemp -t "yazi-cwd.XXXXXX")" cwd
       	command yazi "$@" --cwd-file="$tmp"
       	IFS= read -r -d '' cwd < "$tmp"
       	[ "$cwd" != "$PWD" ] && [ -d "$cwd" ] && builtin cd -- "$cwd"
       	rm -f -- "$tmp"
    }
else
   	_warn_missing yazi "yazi shell wrapper function"
fi

unset -f _warn_missing

# Set Zed as default editor
export EDITOR="zeditor"
export VISUAL="zeditor"
export SUDO_EDITOR="zeditor --wait" # (sudoedit)
export GIT_EDITOR="zeditor --wait"