We all love the odd debugging story, so I finally sat down and wrote up how I debugged a configuration issue that got in the way of the iOS mail app's ability to retrieve email while I was on the go.

Turns out I made some unnecessary "work" for myself when I tried to add support for command history to inf-mongo. As Mickey over at Mastering Emacs points out in a blog post, comint mode already comes with M-n and M-p mapped to comint-next-input and comint-previous-input. And of course they work in inf-mongo right out of the box. I still prefer using M-up and M-down, plus I learned a bit about sparse key maps and general interaction with comint-mode. So from that perspective, no time was wasted although it wasn't strictly necessary to put in the work.

I'm spending a lot of time in the MongoDB shell at the moment, so of course I went to see if someone had built an Emacs mode to support the MongoDB shell. Google very quickly pointed me at endofunky's inf-mongo mode, which implements a basic shell interaction mode with MongoDB using comint. We have a winner, well, almost. The mode does exactly what it says on the tin, but I wanted a little more, namely being able to scroll through my command history. Other repl modes like Cider have this functionality already, so it couldn't be too hard to implement, could it?

A problem archivists have been bringing up for a while now is that with the majority of content going digital and the pace of change in storage mechanisms and formats, it's becoming harder to preserve content even when it is not what would be considered old by the standards of other historic documents created by humanity.

I've had a 'manual' install of JDK 8 on my Mac for quite a while, mainly to run Clojure. It was the typical "download from the Oracle website, then manually run the installer" deployment. As I move the management of more development tools from manual management over to homebrew, I decided to use homebrew to manage my Java installation also. It's just so much easier to get updates and update information all in one place. Oh, and installs the same JDK anyway, just without all the additional pointy clicky work.