dotfiles/.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

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

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

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# 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)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color|*-256color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
	# We have color support; assume it's compliant with Ecma-48
	# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
	# a case would tend to support setf rather than setaf.)
	color_prompt=yes
    else
	color_prompt=
    fi
fi

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

# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

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

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/.local/bin" ] ; then
    PATH="$HOME/.local/bin:$PATH"
fi

export EDITOR=vim

sshAgentPid=`pgrep ssh-agent`
if [[ $sshAgentPid == "" ]]; then
  ssh-agent > ~/.ssh/agent-env.sh
fi
source ~/.ssh/agent-env.sh


# requires the following utilities:
#   git
#   GNU coreutils (for realpath)
#   BSD basename

prompt_command() {
  local retval=$?
  local branch=""
  local branchLength=0
  local clean=""
  local workingDir=""

  local numcolor="\[\e[0;33m\]"
  local red="\[\e[0;31m\]"
  local sepcolor="\[\e[1;30m\]"
  local default="\[\e[0m\]"
  local green="\[\e[0;32m\]"
  local cyan="\[\e[0;94m\]"
  local columns="${COLUMNS:-80}"

  if [[ ! $columns =~ ^[0-9]+$ ]] || (( columns <= 0 )); then
    columns=80
  fi
  local longPromptThreshold=$(( columns / 3 ))

  if [[ $retval -ne 0 ]]; then
    numcolor="\[\e[1;41;33m\]"
  fi

  # If we're in a git repo
  local repoDir
  if repoDir=$(git rev-parse --show-toplevel 2>/dev/null); then
    local branchName
    local branchPrompt
    local relDir

    if branchName=$(git symbolic-ref --quiet --short HEAD 2>/dev/null); then
      :
    elif branchName=$(git describe --tags --exact-match 2>/dev/null); then
      branchName="tag:${branchName}"
    elif branchName=$(git rev-parse --short HEAD 2>/dev/null); then
      branchName="detached:${branchName}"
    else
      branchName=""
    fi

    if [[ -n $branchName ]]; then
      branchLength=${#branchName}
      branchPrompt=$branchName
      branchPrompt=${branchPrompt//\\/\\\\}
      branchPrompt=${branchPrompt//$/\\\$}
      branchPrompt=${branchPrompt//\`/\\\`}
      branch="$cyan${branchPrompt}"
    fi

    if [[ -n $(git status --porcelain 2>/dev/null) ]]; then
      clean="${red}++"
    fi

    relDir=$(realpath "--relative-to=${repoDir}" "${PWD}")
    workingDir=$(basename "${repoDir}")
    if [[ $relDir != "." ]]; then
      workingDir+="/${relDir}"
    fi
  else
    workingDir=$PWD
  fi

  local workingDirPrompt=$workingDir
  workingDirPrompt=${workingDirPrompt//\\/\\\\}
  workingDirPrompt=${workingDirPrompt//$/\\\$}
  workingDirPrompt=${workingDirPrompt//\`/\\\`}

  PS1="$numcolor\!$red \u$sepcolor@${green}\h${default}:${branch}${clean} "

  # Add a linebreak if the branch name + working dir will make the line
  # overly long.
  if (( branchLength + ${#workingDir} > longPromptThreshold )); then
    PS1="\r\n${PS1}\r\n"
  fi

  PS1+="$default$workingDirPrompt"

  # If the working dir is itself too long, put it on its own line and put
  # the prompt below it.
  if (( ${#workingDir} > longPromptThreshold )); then
    PS1+="\r\n"
  fi

  PS1+="${green}\\\$${default} "
}

PROMPT_COMMAND=prompt_command

set -o vi


eval "$(mise activate bash)"