add resume and git-subtrac
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title: "git-subtrac met andrewrk"
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date: 2022-04-23T05:37:51+03:00
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draft: true
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---
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TLDR: I wish `git clone` with default parameters would clone the submodules if
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they are in the same repository.
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git submodules meet andrewrk
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----------------------------
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I use [`git-subtrac`][git-subtrac] for some of my projects, and was not very
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enthusiastic about Zig getting it's own package manager (can we all use
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git-subtrac and be done with it?). A few weeks ago in a park in Milan my
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conversation with [Andrew Kelley](https://andrewkelley.me/) was something like:
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- me: "yadda yadda git submodules vendoring dependencies yadda yadda".
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- Andrew: "if I clone a repository that uses git-subtrac with no extra
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parameters, will it work as expected?"
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- me: "no, you have to pass `--recursive`, so git will checkout submodules...
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even if they are already available locally."
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- Andrew: "then it's a piece-of-shit-approach."
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Uh, I agree. People have not grown muscle memory to add `git clone --recursive
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<repo>` and never will, so it's impossible to adopt git-subtrac beyond
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well-controlled silos. Which is why we will have a
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yet-another-programming-language-specific-package-manager, this time for zig.
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Or at least my argument for using git-subtrac stops right there.
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About git-subtrac
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-----------------
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[`git-subtrac`][git-subtrac] manages dependencies of some of my projects. It is
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like git submodules, but all refs of the dependencies stay in the same
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repository. Wait, stop here. Repeat after me: _it is like git submodules, but
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all refs stay in the same repository_. I call it "good vendoring". Since all
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the deps are in our repo, no external force can make our dependency
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unavailable.
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It is, howerver, harder to *add* a dependency than with, say, `go get
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<dependency>`. Let's talk about auditing dependencies.
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Auditing dependencies
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---------------------
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In "modern" programming languages with their package managers dependencies are
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easy to add, hard to remove, and the maintenance burden grows with their
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amount. Package managers claim to take care of transitive dependencies. Which
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is convenient to the developer, but, as Corbet says, frees (or denies,
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depending how one looks at it) developers from their basic right (or
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obligation?) to understand them. "We can't understand why Kids These Days
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just don't want to live that way" -- [Jonathan Corbet, 2022 April][linux-rust].
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Here is my dependency checklist:
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- Obvious: does it work at all?
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- How easy is it to build, run and run it's tests?
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- Is it well written? API surface, documentation, tests, error handling, error
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signaling, logging, metrics (if applicable), etc.
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- It's system dependencies.
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- It's transitive dependencies.
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Zooming into the last part: C projects tend to do it well. For Go and Python
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projects a small number of dependencies is often a sign of care and quality on
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other areas, too. [mattn/go-sqlite3](https://github.com/mattn/go-sqlite3),
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[google/brotli](https://github.com/google/brotli),
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[apenwarr/redo](https://github.com/apenwarr/redo),
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[cmph](http://cmph.sourceforge.net/) are good examples.
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If a dependency is well written, but has more transitive dependencies than I
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need and there is no good alternative, I will fork it and remove unnecessary
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code and dependencies. My recent example is
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[sql-migrate](https://github.com/motiejus/sql-migrate).
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If I may combine Corbet's views with mine: if we understand and audit our
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dependencies (and transitive ones), we will have less dependencies and a more
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maintainable system. Win-win.
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Which brings us to...
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Transitive dependencies and git-subtrac
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---------------------------------------
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[`git-subtrac`][git-subtrac] does not deal with transitive dependencies. At
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least not directly. Or I am not aware of it. Ok, I haven't tried.
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If we audit and thus understand our dependencies, we will be able to add
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transitive ones to our project even without support of git-subtrac. So perhaps
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git-subtrac shouldn't care?
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Conclusion
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----------
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Can git checkout local submodules when they are in the same repository, so we
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can reconsider (of not having) a package manager for zig?
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[git-subtrac]: https://github.com/apenwarr/git-subtrac/
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[linux-rust]: https://lwn.net/SubscriberLink/889924/a733d6630e3b5115/
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48
content/resume.md
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---
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title: "Resume"
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---
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In reverse-chronological order.
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## Uber: 2016-now
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Core Infrastructure. Areas:
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- Solving problems of Core Infra via various initiatives.
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- Writing tools that manage our fleet.
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- Trained an Incident Response team in EU.
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Tech: Go and Linux.
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## Amazon: 2014-2016
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- Worked on Amazon WorkMail.
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- Intersection between the business application and the system (and networks)
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that are running it.
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Tech: Java, Linux and AWS public offerings.
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## Spil Games: 2012-2014
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- Backend application developer.
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- Networking and Linux investigator.
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Tech: Erlang, C and Linux.
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## Glasgow University: 2011-2012
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Linux systems and hardware administrator.
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## Mano Numeris: 2010-2011
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Business line application developer in Erlang.
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# Education
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## Vilnius University: 2019-2021
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MSc in Cartography.
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## University of Glasgow: 2010-2013
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BSc in Computing Science.
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