I often deal with a repl-crashing amount of data via Babashka and so needed to find a nice way of browsing data. In clojure I reach for hashp but this time I thought I’d try out Chris Badahdah’s Portal which describes itself as the following: “A clojure tool to navigate through your data”. Amazingly, you can even try it out online!

At least in Doom Emacs the default keybindings for evil-mc are really cumbersome, here’s a Hydra that makes things much easier:

(defmacro named-time
  "Evaluates expr and prints the `nme` and the time it took. Returns the value of
  expr."
  [nme# expr]
  `(let [start# (. System (nanoTime))
         ret# ~expr]
     (prn (str "Elapsed time (" ~nme# ") "
               (/ (double (- (. System (nanoTime)) start#)) 1000000.0)
               " msecs"))
     ret#))

Like the time function that Babashka/Clojure has in core, but accepts a name so that it’s easier to identify stuff in a busy console:

(named-time :plus (+ 1 1)) => 2, prints "Elapsed time (:plus) 0.022612 msecs"

I recently ran rm -rf * in my home directory, which apart from being very foolish, reminded me that I have backups of basically every file I’ve edited:

I was just introduced to a tool called Delta which is a pager you can use with Git to give you Github-esque diffs.

To save all attachments from an mu4e email to a particular directory, you can use this handy snippet for older versions of the client. For more modern mu4e versions, use the elisp by @sj30.

Hopefully the docstring explains this well enough:

Handy function to export environment variables to Emacs from the command line:

Yadm’s an amazing dotfile manager that’s basically a thin wrapper around git and a bare repo. With it being a bare repo, you’ll not be able to manage it directly with Magit so here’s a really smart tip I found that will let you access it via Tramp:

To load a random emacs theme on startup (I restart daily) you can use the following snippet. Just add your theme as a new function to funs. If you don’t restart often, you could add a timer to change themes while you’re going.

Here’s a little evil operator that will fill in the first part of an evil/ex substitution with the region / visual / object. This allows you to replace objects quickly without having to type out the ex command in full.

If you’re in a monorepo searching through stuff can be a bit chaotic. Here’s a way of narrowing down to specific file extensions with counsel-projectile-rg:

When using evil and CIDER together, you might find that rebinding the keys required to control the debugger is a pain. Luckily, you don’t actually have to, you can just enter insert mode instead:

If ever I’m writing a chunk of text that will change a lot over time, I like to use this script to make sure I have a constant record of what has changed over time. Combined with your equivelent of git-timemachine, it’s really handy for looking back at progression or finding where you might have gone wrong. 🙂

On a widescreen monitor, especially the really wide ones, it’s nice to have only vertical splits. This snippet will give bias to vertical splits:

As described here, when using evil-mc, it’s very frustrating when a Smartparens command works on only the first of the multiple cursors. Here’s how to fix that: