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rust: update cargo builder to fetch registry dynamically

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The biggest benefit is that we no longer have to update the registry
package. This means that just about any cargo package can be built by
nix. No longer does `cargo update` need to be feared because it will
update to packages newer then what is available in nixpkgs.

Instead of fetching the cargo registry this bundles all the source code
into a "vendor/" folder.

This also uses the new --frozen and --locked flags which is nice.

Currently cargo-vendor only provides binaries for Linux and
macOS 64-bit. This can be solved by building it for the other
architectures and uploading it somewhere (like the NixOS cache).

This also has the downside that it requires a change to everyone's deps
hash. And if the old one is used because it was cached it will fail to
build as it will attempt to use the old version. For this reason the
attribute has been renamed to `cargoSha256`.

Authors:
* Kevin Cox <kevincox@kevincox.ca>
* Jörg Thalheim <Mic92@users.noreply.github.com>
* zimbatm <zimbatm@zimbatm.com>
This commit is contained in:
Kevin Cox
2017-08-05 15:38:48 +01:00
committed by zimbatm
parent d170c2cead
commit 5f8cf0048e
47 changed files with 167 additions and 400 deletions
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21
doc/languages-frameworks/rust.md
View File

@@ -9,16 +9,15 @@ date: 2017-03-05
To install the rust compiler and cargo put
```
rustStable.rustc
rustStable.cargo
rust
```
into the `environment.systemPackages` or bring them into scope with
`nix-shell -p rustStable.rustc -p rustStable.cargo`.
into the `environment.systemPackages` or bring them into
scope with `nix-shell -p rust`.
There are also `rustBeta` and `rustNightly` package sets available.
These are not updated very regularly. For daily builds use either rustup from
nixpkgs or use the [Rust nightlies overlay](#using-the-rust-nightlies-overlay).
For daily builds (beta and nightly) use either rustup from
nixpkgs or use the [Rust nightlies
overlay](#using-the-rust-nightlies-overlay).
## Packaging Rust applications
@@ -38,7 +37,7 @@ buildRustPackage rec {
sha256 = "0y5d1n6hkw85jb3rblcxqas2fp82h3nghssa4xqrhqnz25l799pj";
};
depsSha256 = "0q68qyl2h6i0qsz82z840myxlnjay8p1w5z7hfyr8fqp7wgwa9cx";
cargoSha256 = "0q68qyl2h6i0qsz82z840myxlnjay8p1w5z7hfyr8fqp7wgwa9cx";
meta = with stdenv.lib; {
description = "A utility that combines the usability of The Silver Searcher with the raw speed of grep";
@@ -50,7 +49,7 @@ buildRustPackage rec {
}
```
`buildRustPackage` requires a `depsSha256` attribute which is computed over
`buildRustPackage` requires a `cargoSha256` attribute which is computed over
all crate sources of this package. Currently it is obtained by inserting a
fake checksum into the expression and building the package once. The correct
checksum can be then take from the failed build.
@@ -76,11 +75,11 @@ in the `~/.config/nixpkgs/overlays` directory.
The latest version can be installed with the following command:
$ nix-env -Ai nixos.rustChannels.stable.rust
$ nix-env -Ai nixos.latest.rustChannels.stable.rust
Or using the attribute with nix-shell:
$ nix-shell -p nixos.rustChannels.stable.rust
$ nix-shell -p nixos.latest.rustChannels.stable.rust
To install the beta or nightly channel, "stable" should be substituted by
"nightly" or "beta", or