Commit graph

12 commits

Author SHA1 Message Date
Horki eaef251b2b rust: small patches 2020-10-08 13:40:47 +02:00
Leonhard Markert 1b56de8cd1 Remove macro_use
As of Rust 2018, macro_use is no longer required in most circumstances.
I think it is generally a good idea to remove these when not needed, to
stop them from polluting the crate's global namespace.
https://doc.rust-lang.org/edition-guide/rust-2018/macros/macro-changes.html#macro_rules-style-macros
2020-02-10 09:03:24 +01:00
Eelco Dolstra 14d82baba4 StorePath::new(): Check store directory 2019-12-16 17:41:56 +01:00
Eelco Dolstra f800d450b7 Speed up StorePath::to_string()
1.81% -> 0.56%
2019-12-10 22:15:20 +01:00
Eelco Dolstra bbe97dff8b Make the Store API more type-safe
Most functions now take a StorePath argument rather than a Path (which
is just an alias for std::string). The StorePath constructor ensures
that the path is syntactically correct (i.e. it looks like
<store-dir>/<base32-hash>-<name>). Similarly, functions like
buildPaths() now take a StorePathWithOutputs, rather than abusing Path
by adding a '!<outputs>' suffix.

Note that the StorePath type is implemented in Rust. This involves
some hackery to allow Rust values to be used directly in C++, via a
helper type whose destructor calls the Rust type's drop()
function. The main issue is the dynamic nature of C++ move semantics:
after we have moved a Rust value, we should not call the drop function
on the original value. So when we move a value, we set the original
value to bitwise zero, and the destructor only calls drop() if the
value is not bitwise zero. This should be sufficient for most types.

Also lots of minor cleanups to the C++ API to make it more modern
(e.g. using std::optional and std::string_view in some places).
2019-12-10 22:06:05 +01:00
Eelco Dolstra ebd89999c2 Add StorePath tests 2019-12-10 22:04:40 +01:00
Eelco Dolstra 9e565781c6 Shut up warnings 2019-12-10 13:37:23 +01:00
Eelco Dolstra 14aa0c3259 Use hyper directly instead of reqwest 2019-12-10 13:37:23 +01:00
Eelco Dolstra a6f0bef0a7 Update to async/await-enabled tokio 2019-12-10 13:37:23 +01:00
Eelco Dolstra 6317f0f7a0 StorePath improvements 2019-12-10 13:37:23 +01:00
Eelco Dolstra cce218f950 Add base32 encoder/decoder 2019-12-10 13:37:23 +01:00
Eelco Dolstra a1ff43045b Move stuff around 2019-12-10 13:37:23 +01:00