From 2227702b7fe02b96632af33c08c801da9445ff6b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= Date: Tue, 16 May 2023 15:45:52 +0300 Subject: [PATCH] roadmap summer --- content/log/2023/roadmap-summer-2023.md | 93 +++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 content/log/2023/roadmap-summer-2023.md diff --git a/content/log/2023/roadmap-summer-2023.md b/content/log/2023/roadmap-summer-2023.md new file mode 100644 index 0000000..cb66ec5 --- /dev/null +++ b/content/log/2023/roadmap-summer-2023.md @@ -0,0 +1,93 @@ +--- +title: "Summer Roadmap 2023" +date: 2023-05-15T08:38:08+03:00 +--- + +Now that I have 6 weeks of employment remaining, my wife encouraged me to come +up with something to do for the summer, and possibly after it. This post will +list a few ideas I've been thinking about. + +Next 6 weeks of employment +-------------------------- + +The roadmap [described 6 weeks ago]({{< ref +"log/2023/my-zig-and-go-work-for-the-next-3-months" >}}) is still mostly +applicable. Quick update: + +- The blog post I have mentioned [has been published][uber-zig-blog-post]. + Hooray. +- For the next 6 weeks I will work on making the Zig/Go ecosystem as best as I + can. Many thanks to my leadership for understanding the long-term importance + of this initiative. +- I have de-prioritized `hermetic_cc_toolchain`'s MacOS target support. + +[uber-zig-blog-post]: https://www.uber.com/en-US/blog/bootstrapping-ubers-infrastructure-on-arm64-with-zig/ + +With employment out of the way, what is waiting for me past June 30? + +Project 1: City Limits +---------------------- + +Hereby is my definition of "living in a city" for the purpose of this project: + +> If there is a coffee shop within 15 minute walk from a location, then the +> location is indeed a town/city location. Locations outside a 15-minute walk +> are "not a city": suburbia, farmstead, homestead, whatever you want to call +> it. + +Given the above definition of a city, I want to draw the a map of *Vilnius City +Boundaries*. I have not found the suitable algorithm yet: there are many +algorithms to calculate the duration from point A to B, but not an algorithm +which will draw the boundaries from point A (the coffee shop) to all reachable +points under a certain [cost][cost]. + +Of course, this definition is a joke. Not all of us live for coffee. I have a +few more applications for extending such a map, but the coffee is the first +one. + +[cost]: http://theory.stanford.edu/~amitp/GameProgramming/MovementCosts.html + +Project 2: my take on universal headers +--------------------------------------- + +Caution: this section is highly technical and probably interesting only to +folks who compile lots C or C++ applications. + +Zig [universal-headers][universal-headers] project was started about 2 years +ago by now, but still quite far from completion. This project is important for +me, because I want to easily compile my software with different versions of +glibc using only the command-line switch. Zig already offers that for the +symbols exposed by glibc, but not for the headers. Currently zig offers headers +for only latest glibc versions, which [is][9485] [problematic][10713]. + +My take on universal-headers: +1. Compress all headers with `zstd --ultra -22` +2. Make the compressed tarball [seekable][seekable], so it can be extracted + faster. +3. When user requests a specific glibc version, extract the headers for that + particular version only and point the compiler to that directory. + +Currently [`ziglang@universal-headers/headers`][all-headers], when compressed +naïvely, don't weigh that much: + + $ ls --block-size=M -1s headers.tar headers.tar.zst + 1121M headers.tar + 17M headers.tar.zst + +Granted, they are incomplete (looks like only glibc 2.33-2.36 are present, +whereas we want at least [2.17][rhel-glibc]), but a reasonable start. + +[universal-headers]: https://github.com/ziglang/universal-headers +[9485]: https://github.com/ziglang/zig/issues/9485 +[10713]: https://github.com/ziglang/zig/issues/10713 +[seekable]: https://github.com/facebook/zstd/blob/7806d803383b75b00868a5367154a18caf535a92/contrib/seekable_format/zstd_seekable_compression_format.md +[all-headers]: https://github.com/ziglang/universal-headers/tree/093de8cdcc2b7cb1d50342ef79812a864a8fde74/headers +[rhel-glibc]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.0_release_notes/sect-red_hat_enterprise_linux-7.0_release_notes-compiler_and_tools-glibc + +Project 3: home and vacation +---------------------------- + +Quite some things have accumulated to improve and fix at home. That will get +some love and attention too. + +Looking forward to all of the above!