dotfiles/bash_functions

#!/bin/bash

function __available_projects(){
    /bin/ls $HOME/src | tr " " "\n"
}


function __proj_activate_comp(){
   cur=${COMP_WORDS[COMP_CWORD]}
   if [ $COMP_CWORD -eq 1 ]
   then
       COMPREPLY=( $( compgen -W "$(__available_projects)" $cur ) )
   fi
}


function __proj_deactivate_reactivate_comp(){
    cur=${COMP_WORDS[COMP_CWORD]}

    if [ -n "$VIRTUAL_ENV" ]
    then
        COMPREPLY=( $(basename "$VIRTUAL_ENV") )
        return 0
    elif [ -n "$PROJ" ]
    then
        COMPREPLY=( $(basename "$PROJ") )
        return 0
    else
        COMPREPLY=( $cur )
    fi
}


function a(){
    source $HOME/.activate_proj "$@"
}


function d(){
    source $HOME/.deactivate_proj "$@"
}


function r(){
    d "$1"
    a "$1"
}


complete -F __proj_activate_comp -o default a
complete -F __proj_deactivate_reactivate_comp -o default d r


# if the command-not-found package is installed, use it
if [ -x /usr/lib/command-not-found ]; then
    command_not_found_handle(){
            # check because c-n-f could've been removed in the meantime
                if [ -x /usr/lib/command-not-found ]; then
           /usr/bin/python /usr/lib/command-not-found -- $1
                   return $?
        else
           return 127
        fi
    }
fi


function add_ssh_keys()
{
    if [[ "$1" == "all" ]]
    then
        for key in $__SSH_KEYS__
        do
            ssh-add $key
        done
    else
        ssh-add
    fi
}


function get_ssh_agent(){
    ssh-add -l
    test $? -eq 2 || return

    agent_out="$HOME/.ssh/agent.out"
    source $agent_out
    ssh-add -l
    test $? -eq 2 || return

    ssh-agent > $agent_out
    source $agent_out
    ssh-add
}


function get_gpg_agent(){
    readlink -f "$HOME/.gnupg" >/dev/null || return 0
    agent_out="$HOME/.gnupg/agent.out"
    tmp=$(mktemp /tmp/gnupgXXXX)
    gpg-agent $* > $tmp && mv $tmp $agent_out

    grep GPG_TTY $agent_out >/dev/null || \
        cat >> $agent_out <<EOF
export GPG_TTY="$(tty)"
EOF
    source $agent_out
}


function retag(){
    langs="python"
    if [ -n "$1" ] ; then
        langs="$langs,$1"
    fi
    rm -f $PWD/tags
    ctags --recurse=yes --languages=$langs $PWD
}


function top_commands(){
    history | awk '{ print $2 }' | sort | uniq -c | sort -k1 -rn | head
}


function rss_pid_command(){
    cmd="ps -o rss,pid,command U $USER"
    if [ -n "$1" ] ; then
        grep_filter="grep $1"
        $cmd | $grep_filter | grep -v "$grep_filter"
    else
        $cmd
    fi
}


function exit_status() {
    if [[ $1 -eq 0 ]]; then
        echo "\[\033[1;32m\]✓\[\033[00m\]"
    else
        echo "\[\033[1;31m\]✗\[\033[00m\]:\[\033[31m\]$1\[\033[00m\]"
    fi
}


function precmd(){
    last_status=$?

    PS1="\[\033[1;32m\]\u@\h\[\033[00m\]:\[\033[1;32m\]"
    PS1="$PS1$(truncpwd)\[\033[00m\] -$(print-color-loadavg)- "
    PS1="$PS1$(__git_ps1 "(%s)")\n$(exit_status $last_status) "

    export PS1
}


function unhyphenate() {
    ruby -e "puts '$1'.gsub(/[\-_]/, ' ')"
}


function rbenv_init() {
    if [ -n "$DEBUG" ] ; then
        export RBENV_DEBUG=1
        time eval "$(rbenv init -)"
        unset RBENV_DEBUG
    else
        eval "$(rbenv init -)"
    fi
}