Julio Merino's personal blog
Back in September 2019, I embarked into the task of rewriting Bazel’s dynamic scheduler to deal with slow and flaky networks. Initial testing had shown that dynamic builds might become slower, and it was all due to this feature having been designed for a different use case (in-office, high-speed network). We had to fix two different issues in the scheduler. The first fix was making the downloads of the remote artifacts happen without holding the output lock.
Shamefully this is a first for me. I have never blogged or tweeted about politics, but somehow this time around the situation is truly settling in—and for good reason. It should affect you too. You see, I’m a firm believer in equality, and seeing all that’s happening around is not acceptable. See Paradox of tolerance. I don’t have much to say, in particular because saying things like “racism is wrong” or, as the image says, “Black Lives Matter” are like saying “the sky is blue”… and I feel silly for stating the obvious.
I just spent sometime between 30 minutes and 1 hour convincing the Mac Pro that sits in my office to successfully codesign an iOS app via Bazel. This was after having to update the signing key to a newer one and after rebooting the machine due to the macOS 10.15.5 upgrade—all remotely thanks to COVID-19. The build of the app was failing with an errSecInternalComponent error printed by codesign. It is not the first time I face this, but in all previous cases, I had either been at the computer to click through security popups, had had functional Chrome Remote Desktop access, or did not have to install a new signing key remotely.
A couple of weeks ago, I announced EndBASIC: a simple BASIC language interpreter written in Rust with a goal to provide an environment for teaching my kids how to code. That first release provided what-I-think-is a robust interpreter, but that was about it: the language features were still minimal and the interactive features were non-existent. Well, EndBASIC 0.2.0 is here and things are changing! It’s still far from the vision I want to reach, but it’s slowly moving towards that direction.
Rust provides a bunch of traits that you may use or implement in your code, but unless you have experienced them first-hand, it can be hard to imagine what their real utility is. For example, if you go read Into’s documentation, all you find is: Trait std::convert::Into A value-to-value conversion that consumes the input value. The opposite of From. […] Yay, very useful. This text tells me what this trait does, which is fine for a reference manual, but not when I could find it useful.
Introducing EndBASIC, a new interpreter for a BASIC-like language that is inspired by Amstrad's Locomotive BASIC 1.1 and Microsoft's QuickBASIC 4.5. Like the former, EndBASIC intends to provide an interactive environment that seamlessly merges coding with immediate visual feedback. Like the latter, EndBASIC offers higher-level programming constructs and strong typing. The main idea behind EndBASIC is to provide a playground for learning the foundations of programming in a simplified environment.