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24 commits

Author SHA1 Message Date
Eelco Dolstra b4edc3ca61 Don't leak exceptions 2019-12-13 19:05:26 +01:00
Eelco Dolstra ca87707c90 Get rid of CBox 2019-12-13 19:05:26 +01:00
Eelco Dolstra 5a6d6da7ae Validate tarball components 2019-12-13 19:05:26 +01:00
Eelco Dolstra f800d450b7 Speed up StorePath::to_string() 
1.81% -> 0.56%
 2019-12-10 22:15:20 +01:00
Eelco Dolstra f64b58b45e Speed up base32::decode() 
From 1.03% to 0.19% of the runtime of 'nix-instantiate "<nixpkgs>" -A
texlive.combined.scheme-full --dry-run'.
 2019-12-10 22:06:05 +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 7f08975050 Add NAR parser 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
Eelco Dolstra dd5d76e2ed Basic BinaryCacheStore implementation using async Rust 2019-12-10 13:37:23 +01:00
Eelco Dolstra dbc4f9d478 Fix macOS build 
https://hydra.nixos.org/build/107466992
 2019-11-27 00:17:39 +01:00
Eelco Dolstra f2bd847092 Ignore tar header entries 
In particular, these are emitted by 'git archive' (in fetchGit).
 2019-11-26 22:07:28 +01:00
Eelco Dolstra d33dd6e6c0 Move code around 2019-11-26 22:07:28 +01:00
Eelco Dolstra d14b1c261c Shut up some rust warnings 2019-11-26 22:07:28 +01:00
Eelco Dolstra f738cd4d97 More Rust FFI adventures 
We can now convert Rust Errors to C++ exceptions. At the Rust->C++ FFI
boundary, Result<T, Error> will cause Error to be converted to and
thrown as a C++ exception.
 2019-11-26 22:07:28 +01:00
Eelco Dolstra 8110b4ebb2 Rust cleanup 2019-11-26 22:07:28 +01:00
Eelco Dolstra 045708db43 Make <nix/unpack-channel.nix> a builtin builder 
This was the last function using a shell script, so this allows us to
get rid of tar, coreutils, bash etc.
 2019-11-26 22:07:28 +01:00
Eelco Dolstra e60f6bd4ce Enable Rust code to call C++ Source objects 2019-11-26 22:07:28 +01:00
Eelco Dolstra 11da5b2816 Add some Rust code 2019-11-26 22:07:28 +01:00