git_cache_http_server.into_rust(): parsing args
08 June 2021. Estimated reading time: 5 min.
I decided to start rewriting the git cache server in Rust by the command-line interface.
The Haxe implementation used docopt. Originally developed for Python by Vladimir Keleshev, docopt is a command-line argument parsing library where the parser is automatically constructed from the usage message.
I could just use docopt for Rust and be done with it. But what else is there in Rust? And what are my requirements?
git_cache_http_server.into_rust(): preamble
17 July 2020. Estimated reading time: 3 min.
I originally wrote the git-cache-http-server in 2015, as a proof of concept
to ensure the viability of a CI system my company was about to pitch. The
system would require cloning fairly large repositories very frequently, and the
use of a simple shared local directory was undesirable.
as, to and into methods in rust
15 July 2020. Estimated reading time: 3 min.
Rust standard library types frequently have methods with names that look like
as_something, to_something, or into_something. Clearly the difference
between "as", "to" and "into" is intentional, and I realized I didn't know why.
So let's pick String, and take a closer look at the as/to/into methods that
are available.
about these notes
14 July 2020. Estimated reading time: 1 min.
As I type these words, I am learning about Rust, and this is a place to write down interesting things I discover along the way.
But one invariant of reality is that the future is unpredictable, and this description is bound to become inaccurate...
when rust lifetimes finally click
11 July 2020. Estimated reading time: 2 min.
I started learning Rust by reading the Book, cover to cover. Lifetimes were far from the hardest topic for me to get used to, and I even took care to make a mental note that
Lifetime annotations don’t change how long any of the references live.
So I was very surprised to realize that, a few days later, I had no idea what
my custom error types were supposed to return when implementing
Error::source.