a.sh

note ()
{
    local note_path base;
    if test -z "$1"; then
        base="$(basename "$(pwd)")";
    else
        base="$1";
    fi;
    local note_path="${HOME}/link/$base";
    if [ ! -d "${HOME}/link" ]; then
        mkdir "${HOME}/link";
    fi;
    if [ -e "${note_path}" ]; then
        echo "Error: already exists: ${note_path}" 1>&2;
        return 1;
    else
        ( set -e;
        command cd -P .;
        ln -vs "`pwd`" "${note_path}" );
    fi
}

cd ()
{
    if [ "$1" = . -o "$1" = .. -o "$1" = "" ]; then
        command cd "$@" || return 1;
    else
        if [ ! -e "$1" -a -d "${HOME}/link/$1" ]; then
            command cd -P "${HOME}/link/$1" || return 1;
            pwd;
        else
            command cd "$@" || return 1;
        fi;
    fi;
    deactivate;
    local p="$(pwd)";
    while ! [ -d "$p/dev" ]; do
        if [ -d "$p/.venv" ]; then
            VIRTUAL_ENV="$(command cd -P "$p"/.venv; pwd)";
            PATH="$VIRTUAL_ENV/bin:$PATH";
            break;
        fi;
        p="$p/..";
    done
}

f ()
{
    local pat="$1";
    shift;
    find . -name "*$pat*" -and ! -path "*.svn*" -and ! -path "*.hg*" -and ! -path "*/.git" -and ! -path "*.git/*" -and ! -path "*.py[co]" "$@"
}

vf ()
{
    vim $(f "$1" | grep -v \\.swp | grep -v \\.swo )
}