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163 lines
8.5 KiB
163 lines
8.5 KiB
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<a href="https://blog.juliobiason.me"><h1>Julio Biason .Me 4.3</h1></a> |
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<p class="lead">Old school dev living in a 2.0 dev world</p> |
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<h1 class="post-title">Commented Links for 2020-06-20</h1> |
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2020-06-20 |
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<a href="https://blog.juliobiason.me/tags/links/">#links</a> |
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<a href="https://blog.juliobiason.me/tags/sigsegv/">#sigsegv</a> |
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<a href="https://blog.juliobiason.me/tags/segmentation-fault/">#segmentation fault</a> |
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<a href="https://blog.juliobiason.me/tags/activitypub/">#activitypub</a> |
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<a href="https://blog.juliobiason.me/tags/conference/">#conference</a> |
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<a href="https://blog.juliobiason.me/tags/git/">#git</a> |
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<a href="https://blog.juliobiason.me/tags/names/">#names</a> |
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<a href="https://blog.juliobiason.me/tags/branches/">#branches</a> |
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<a href="https://blog.juliobiason.me/tags/rust/">#rust</a> |
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<a href="https://blog.juliobiason.me/tags/ecosystem/">#ecosystem</a> |
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<a href="https://blog.juliobiason.me/tags/cli/">#cli</a> |
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<a href="https://blog.juliobiason.me/tags/design/">#design</a> |
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<a href="https://blog.juliobiason.me/tags/scp/">#scp</a> |
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<p>SIGSEGV, ActivityPub Conf, Git Branch Names, Rust Ecosystem, Learning Rust |
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with CLI, Design Problems, SCP.</p> |
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<span id="continue-reading"></span><h2 id="why-is-there-a-v-in-sigsegv-segmentation-fault"><a href="https://blog.cloudflare.com/why-is-there-a-v-in-sigsegv-segmentation-fault/">Why is there a "V" in SIGSEGV Segmentation Fault?</a></h2> |
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<p>A little bit of UNIX/POSIX based-operating systemas -- and something that |
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never actually made me wonder what it meant, specially considering the names |
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of the other interruptions and some internal commands (<code>creat</code>, for example).</p> |
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<h2 id="activitypub-conference-2020"><a href="https://conf.activitypub.rocks/#home">ActivityPub Conference 2020</a></h2> |
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<p>Ok, it is a bit early for this -- the CFP just opened -- but as a fan of what |
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ActivityPub proposes to solve, I must share this: A conference related to the |
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discussion of the protocol and its tools (well, I <em>guess</em> that the topic, |
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anyway).</p> |
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<p>Stay tuned for the selected talks in the future.</p> |
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<h2 id="on-git-branch-naming"><a href="http://meta.ath0.com/2020/06/git-branch-naming/">On Git branch naming</a></h2> |
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<p>The change of Git main branch name to something that is not "master" generated |
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some discussion online, even with the major Git services (Github, for example) |
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already announced that new repositories will get new names.</p> |
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<p>There is a problem with the meaning of the name and what it represents to a |
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significant part of the world population, but what the post shows is that even |
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if you ignore that, the name "master" makes no sense in the Git architecture; |
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it is based on the name used by BitKeeper, which had the master/slave |
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architecture, which Git <em>does not</em> have.</p> |
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<p>And yes, I do agree with all the answers there. And: If it is a simple change, |
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won't break anything, and oppressed groups (in the past or present) don't get |
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offended, why not?</p> |
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<p>There is another point thought: Git is distributed, right? This means it has |
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not a central server; every installation is the central of itself. The same |
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goes for its branches, though: Every branch is a copy in itself and you don't |
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<em>have</em> to put them all in the same basket at some point, e.g., merging back to |
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the main branch, because there is no <em>main</em> branch. It is just a name and |
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doesn't hold any special functionality compared to other branches.</p> |
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<h2 id="understanding-the-rust-ecosystem"><a href="https://joeprevite.com/rust-lang-ecosystem">Understanding the Rust Ecosystem</a></h2> |
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<p>I tend to mention that "languages do not exist in a vacuum", and by that I |
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mean that you must not look only at some programming language or just a small |
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piece of it, but the whole; how is the ecosystem for this thing?</p> |
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<p>And, for Rust, it felt always a vibrant system, with all its weirdness and |
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coolness. And this post goes one step further showing most of the things going |
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around, from platforms, to forums, to meetups, to companies using the |
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language, to famous tools.</p> |
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<h2 id="diving-into-rust-with-a-cli"><a href="https://kbknapp.dev/rust-cli/">Diving into Rust with a CLI</a></h2> |
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<p>Speaking of Rust, Kevin K wrote this post about a command line tool to |
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download the XKCD comics. But instead of building the most simple solution for |
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it, he used the most known libraries for specific points (explaining why he |
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picked some) and showing a complete final solution.</p> |
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<p>I'm writing some other command line tool in Rust to explore more the language, and the current result is not even near the niceness of what is shown here.</p> |
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<h2 id="stop-blaming-people-it-s-a-design-problem"><a href="https://quinnkeast.com/writing/stop-blaming-people-its-a-design-problem/">Stop Blaming People: It’s a Design Problem</a></h2> |
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<p>Developers are famous for not being able to design a button in the right way |
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or making it too damn hard to use the damn button -- or, in worse cases, |
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building an interface so cluttered with options that it is basically |
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impossible to use the application.</p> |
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<p>But it is not just the software world that suffers from that: the fire in the |
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Notre Dame Cathedral could be prevented if the interface didn't use some |
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indirect information; the ballistic missile warning in Hawaii wouldn't have |
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happened if the interface for the alarm wasn't so simplistic. And so on.</p> |
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<p>Sometimes it is necessary to think a bit more about how the service will be |
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used instead of making things complex (or too simplistic).</p> |
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<h2 id="scp-familiar-simple-insecure-and-slow"><a href="https://gravitational.com/blog/scp-familiar-simple-insecure-slow/">SCP - Familiar, Simple, Insecure, and Slow</a></h2> |
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<p>I already knew SCp was slow, but I wasn't sure how slow. What impressed me |
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most in the post is this line here:</p> |
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<pre style="background-color:#2b303b;color:#c0c5ce;"><code><span>tar cf - /tmp/big_folder | ssh server 'tar xC /tmp/ -f -' |
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</span></code></pre> |
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<p>Basically, using <code>tar</code> to get the content of several files and turn it in a |
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single sequence of bytes, send it through stdout to ssh and, there, run <code>tar</code> |
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to undo the sequence (making them back into files). Curious, and potentially |
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4x faster than copying files directly through <code>scp</code>.</p> |
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