q

q is a better way to do print statement debugging.

Type q.Q instead of fmt.Printf and your variables will be printed like this:

Why is this better than fmt.Printf?

• Faster to type
• Pretty-printed vars and expressions
• Easier to see inside structs
• Doesn't go to noisy-ass stdout. It goes to $TMPDIR/$USER.q.
• Pretty colors!

Basic Usage

import "q"
...
q.Q(a, b, c)

For best results, dedicate a terminal to tailing $TMPDIR/$USER.q while you work.

Install

git get github.com/bingoohuang/q@latest

Put these functions in your shell config. Typing qq or rmqq will then start tailing $TMPDIR/$USER.q.

qq() {
    clear

    logpath="$TMPDIR/$USER.q"
    if [[ -z "$TMPDIR" ]]; then
        logpath="/tmp/q"
    fi

    if [[ ! -f "$logpath" ]]; then
        echo 'Q LOG' > "$logpath"
    fi

    tail -100f -- "$logpath"
}

rmqq() {
    logpath="$TMPDIR/$USER.q"
    if [[ -z "$TMPDIR" ]]; then
        logpath="/tmp/q"
    fi
    if [[ -f "$logpath" ]]; then
        rm "$logpath"
    fi
    qq
}

You also can simply tail -f $TMPDIR/$USER.q, but it's highly recommended to use the above commands.

Haven't I seen this somewhere before?

Python programmers will recognize this as a Golang port of the q module by zestyping.

Ping does a great job of explaining q in his awesome lightning talk from PyCon 2013. Watch it! It's funny :)

FAQ

Why q.Q?

It's quick to type and unlikely to cause naming collisions.

Is q.Q() safe for concurrent use?

Yes.