[dotfiles] / .bashrc

# ~/.bashrc: executed by bash(1) for non-login shells.
cat /dev/null > ~/.bash_history

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

# don't put duplicate lines in the history. See bash(1) for more options
# don't overwrite GNU Midnight Commander's setting of `ignorespace'.
export HISTCONTROL=$HISTCONTROL${HISTCONTROL+,}ignoredups
# ... or force ignoredups and ignorespace
export 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)

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

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

# set the prompt
PS1='\w\$ '

# 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

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    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

alias emacs='emacs -nw'
alias serve='python -m SimpleHTTPServer 8080'
alias gpg='gpg2'
alias gnupg='gnupg2'

export SVN_EDITOR=vim

# 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 [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

# Add the ~/bin directory to the path.  This allows you to install simple
# binaries by simply moving them into ~/bin.
if [ -d $HOME/bin ]; then
        PATH="$HOME/bin:$PATH"
        export PATH
fi

# Put $HOME/.cabal/bin on the path. Installing cabal doesn't
# automatically put installed packages on the path.
if [ -d $HOME/.cabal/bin ]; then
    PATH="$HOME/.cabal/bin:$PATH"
    export PATH
fi

# Put /usr/local/bin (where homebrew installs stuff) before /usr/bin on the
# path. This means that if a program exists at both locations, calls to that
# program will use the homebrew version rather than the system version.
PATH="/usr/local/bin:$PATH"
export PATH

# Run a machine-specific bashrc (if it exists).
if [ -f $HOME/.bashrc_local ]; then
        source $HOME/.bashrc_local
fi

# Automatically open screen.
# The if statement prevents it from recursing (since screen opens bash).
if [ $TERM != screen ] && [ $TERM != screen.xterm-256color ] ; then
        screen
fi

# Gets a directory named .env or .venv if it exists in the currend directory or any of its parents
get_env() {
  if [ -d "$1/.env" ] ; then
    echo "$1/.env"
  else
    if [ -d "$1/.venv" ] ; then
      echo "$1/.venv"
    else
      if [ -d "$1/.." ] ; then
        get_env "$1/.."
      fi
    fi
  fi
}

get_absolute_path() {
  python3 -c "import os; print(os.path.realpath('$1'))"
}

on_prompt() {
  # Load a virtualenv environment if it exists in a file named .env
  env_folder=$(get_env $(pwd))

  if [ -d "$env_folder" ] ; then
    if [[ $VIRTUAL_ENV != $(get_absolute_path $env_folder) ]] ; then
      echo "Activating env '$env_folder'"
      source "$env_folder/bin/activate"
    fi
  else
    if [ -d "$VIRTUAL_ENV" ] ; then
      deactivate
    fi
  fi
}

# Call on_prompt() every time the command prompt executes
PROMPT_COMMAND=on_prompt

# Set vi keybindings
set -o vi

# pip should only run if there is a virtualenv currently activated
export PIP_REQUIRE_VIRTUALENV=true