config/bash/bashrc-linux

## Enable color support of ls and also add handy aliases
# Some colors
alias ls='ls --color=auto'
alias grep='grep --color=auto'

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

# Set history size to unlimited
if [[ $EUID == 0 ]] ; then
	export HISTSIZE=0
	export HISTFILESIZE=0
else
	export HISTSIZE=-1
	export HISTFILESIZE=-1
fi

#export LANG=en_US.UTF-8


# Used for vim header
export VIUSER=bchanot
export VIMAIL=bchanot@gmail.fr

## Activate and custom bash completion
#bind 'TAB:menu-complete'
#bind 'set show-all-if-ambiguous on'

## Setting prompt style
# Get current branch in git repo
function parse_git_branch() {
	BRANCH=`git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'`
	if [ ! "${BRANCH}" == "" ]
		then
			STAT=`parse_git_dirty`
			echo " [${BRANCH}${STAT}]"
		else
			echo ""
	fi
}
function timer_now {
    date +%s%N
}

function timer_start {
    timer_start=${timer_start:-$(timer_now)}
}

function timer_stop {
    local delta_us=$((($(timer_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))
    # Goal: always show around 3 digits of accuracy
    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=${us}us
    fi
    unset timer_start
}
# get current status of git repo
function parse_git_dirty {
	status=`git status 2>&1 | tee`
	dirty=`echo -n "${status}" 2> /dev/null | grep "modified:" &> /dev/null; echo "$?"`
	untracked=`echo -n "${status}" 2> /dev/null | grep "Untracked files" &> /dev/null; echo "$?"`
	ahead=`echo -n "${status}" 2> /dev/null | grep "Your branch is ahead of" &> /dev/null; echo "$?"`
	newfile=`echo -n "${status}" 2> /dev/null | grep "new file:" &> /dev/null; echo "$?"`
	renamed=`echo -n "${status}" 2> /dev/null | grep "renamed:" &> /dev/null; echo "$?"`
	deleted=`echo -n "${status}" 2> /dev/null | grep "deleted:" &> /dev/null; echo "$?"`
	bits=''
	if [ "${renamed}" == "0" ] || [ "${newfile}" == "0" ] || [ "${untracked}" == "0" ] || [ "${dirty}" == "0" ]; then
		bits="+${bits}"
	fi
	if [ "${ahead}" == "0" ]; then
		bits="*${bits}"
	fi
	if [ "${deleted}" == "0" ]; then
		bits="-${bits}"
	fi
	if [ ! "${bits}" == "" ]
		then
			echo " ${bits}"
		else
			echo ""
	fi
}

function set_prompt {
	timer_stop

	if [[ $EUID == 0 ]] ; then
		export PS1='`if [ $? = 0 ]; then echo "\[\033[01;36m\]✔"; else echo "\[\033[01;31m\]✘"; fi` ($timer_show) \[\033[01;31m\]\u [\[\033[00;0m\] \w \[\033[01;31m\]]\[\033[01;34m\]$(parse_git_branch " %s") \[\033[00;00m\]> '
	else
		export PS1='`if [ $? = 0 ]; then echo "\[\033[01;36m\]✔"; else echo "\[\033[01;31m\]✘"; fi` ($timer_show) \[\033[01;32m\]\u [\[\033[00;0m\] \w \[\033[01;32m\]]\[\033[01;34m\]$(parse_git_branch " %s") \[\033[00;00m\]> '
	fi
}

trap 'timer_start' DEBUG
PROMPT_COMMAND='set_prompt'
## Lancement des commandes au demarrages