export PS1="\W\$ "

add_to_path() {
    if [ -d "$1" ] && [[ ! $PATH =~ (^|:)$1(:|$) ]]; then
        PATH+=:$1
    fi
}

# if this is a CygWin .bashrc, then set CygWin's commands first in PATH
# because link.exe and find.exe exist in Windows's path.
# Add /usr/lib/lapack at the end so python's numpy can find lapack_lite
# (Note: BSD bash, used by OS X doesn't have the "substr" test for expr.)
if [[ $(uname -s) == CYGWIN* ]]; then
    PATH=/usr/local/bin:/usr/bin:$PATH
    PATH=${PATH//":/usr/local/bin:/usr/bin"/} # delete any instances in middle
    add_to_path /usr/lib/lapack
    ulimit -n 1024 # for "duplicity"
    alias ls='ls --color=auto'
elif [[ $(uname -s) == Darwin* ]]; then
    export LSCOLORS=gxfxcxdxbxegedabagacad
    export CLICOLOR=1
fi

# change the color of directories in the ls command 
#
# After executing: dircolors -p > .dircolors
# Lighten the color of directories from blue to light blue
# sed -i '/# directory/c\DIR 00;36 # directory' .dircolors
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
fi

alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'

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

# Add to PATH only if not already in PATH.
add_to_path $HOME/bin

alias findinchppfiles="find . -type f \( -name \*.[ch]pp -or -name \*.[ch] \) -print0 | xargs -0 grep -nI"
alias findinpyfiles="find . -name \*.py -print0 | xargs -0 grep -nI"