.bashrc.symlink

#===============================================================================
# ~/.bashrc configuration file.
# See the bash(1) man page.
#
# Maintainer: Harenome RANAIVOARIVONY RAZANAJATO
# License: WTFPLv2
#
# For the latest version (or any previous version) of this file,
# see https://github.com/Harenome/dotfiles/blob/master/.bashrc.symlink
#===============================================================================

################################################################################
# Helper functions.
################################################################################

# Append existing directories to paths
# $1: Environment variable
# $2: Directory
function __append_to_path
{
  if [[ -d "$2" ]]; then
    [[ -z $(eval "echo \$$1") ]] && eval "export $1=$2" || eval "export $1=\$$1:$2"
  fi
}

# Prepend existing directories to paths
# $1: Environment variable
# $2: Directory
function __prepend_to_path
{
  if [[ -d "$2" ]]; then
    [[ -z $(eval "echo \$$1") ]] && eval "export $1=$2" || eval "export $1=$2:\$$1"
  fi
}

# Use a modifier function to modify standard paths
# $1: Modifier function
# $2: Directory
function __modify_standard_paths
{
  if [[ -d "$2" ]]; then
    # Compiler paths
    "$1" "LIBRARY_PATH" "$2/lib"
    "$1" "LIBRARY_PATH" "$2/lib64"
    "$1" "CPATH" "$2/include"

    # Runtime paths
    "$1" "PATH" "$2/bin"
    "$1" "PATH" "$2/sbin"
    "$1" "MANPATH" "$2/man"
    "$1" "MANPATH" "$2/share/man"
    "$1" "LD_LIBRARY_PATH" "$2/lib"
    "$1" "LD_LIBRARY_PATH" "$2/lib64"
  fi
}

# Append a directory to standard paths
# $1: Directory
function __append_to_standard_paths
{
  __modify_standard_paths "__append_to_path" "$1"
}

# Prepend a directory to standard paths
# $1: Directory
function __prepend_to_standard_paths
{
  __modify_standard_paths "__prepend_to_path" "$1"
}

################################################################################
# $HOME/bin
################################################################################

# Although I prefer to put "global" (shared between setups) scripts in
# ~/.opt/sbin and specific (to a particular setup) scripts in ~/.opt/bin,
# ~/bin is quite conventionnal. Thus, let's add it to $PATH. Just in case...

HOME_BIN="$HOME/bin"
[[ -d "$HOME_BIN" ]] && export PATH="$HOME_BIN:$PATH"

################################################################################
# RVM support.
################################################################################

# Do this first, so that even non-interactive shells load it as well.
if [[ -d "$HOME/.rvm/bin" ]]; then
  # Add RVM to PATH for scripting
  export PATH="$PATH:$HOME/.rvm/bin"
  source $(rvm 1.9.3 do rvm env --path)
fi

################################################################################
# XDG directories
################################################################################

#export XDG_DATA_HOME="$HOME/.local/share"
#export XDG_CONFIG_HOME="$HOME/.config"
#export XDG_DATA_DIRS="/usr/local/share/:/usr/share/"
#export XDG_CONFIG_DIRS="/etc/xdg"
#export XDG_CACHE_HOME="$HOME/.cache"

################################################################################
# User opt directory
################################################################################

__prepend_to_standard_paths "$HOME/.opt"

################################################################################
# Interactive shell test.
################################################################################

# If not running interactively, don't do anything
[[ -z "$PS1" ]] && return

################################################################################
# Aliases.
################################################################################

BASH_ALIASES="$HOME/.bash_aliases"
[[ -f "$BASH_ALIASES" ]] && source "$BASH_ALIASES"

################################################################################
# Bash completion
################################################################################

# Probably already enabled in /etc/bash.bashrc which itself is probably
# already sourced by /etc/profile.
BASH_COMPLETION="/etc/bash_completion"
if [[ -f "$BASH_COMPLETION" ]] && ! shopt -oq posix; then
  source "$BASH_COMPLETION"
fi

################################################################################
# History.
################################################################################

# 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

################################################################################
# Misceallenous.
################################################################################

# 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)"

################################################################################
# Prompt.
################################################################################

LIQUIDPROMPT="$HOME/.liquidprompt/liquidprompt"
if [[ -f "$LIQUIDPROMPT" ]]; then
  # Liquidprompt
  source "$LIQUIDPROMPT"
else
  # This section comes from the default .bashrc provided on Ubuntu.
  # (Ubuntu 6.10 ? I have been using some parts of this .bashrc for years...)

  # 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) 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

  # If this is an xterm set the title to user@host:dir
  case "$TERM" in
    xterm*|rxvt*)
      PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1" ;;
    *)
      ;;
  esac
fi

################################################################################
# Local configurations.
################################################################################

# This file is shared between machines. Sometimes, a specific system needs
# specific configuration.
# Any file in $HOME/.local/dotfiles/bash will be sourced.
LOCAL_BASH_CONFIG_FILES="$XDG_CONFIG_HOME/dotfiles/bash"
if [[ -d "$LOCAL_BASH_CONFIG_FILES" ]]; then
  for file in "$LOCAL_BASH_CONFIG_FILES/"*; do
    source $file
  done
fi

################################################################################
# Cleaning.
################################################################################

#unset __append_to_path

# vim:ft=sh