rust: remove legacy cargo fetcher

We have now migrated every single Rust package in NixPkgs! This deletes the
legacy fetcher, which is now unused.

Resolves #79975
This commit is contained in:
Benjamin Hipple 2020-03-18 20:43:07 -04:00 committed by Jon
parent 6865db4d3c
commit 05343f6ff1
4 changed files with 10 additions and 108 deletions

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@ -60,9 +60,9 @@ Nix depends on this file, so if it missing you can use `cargoPatches` to apply
it in the `patchPhase`. Consider sending a PR upstream with a note to the
maintainer describing why it's important to include in the application.
Unless `legacyCargoFetcher` is set to `true`, the fetcher will also verify that
the `Cargo.lock` file is in sync with the `src` attribute, and will compress the
vendor directory into a tar.gz archive.
The fetcher will verify that the `Cargo.lock` file is in sync with the `src`
attribute, and fail the build if not. It will also will compress the vendor
directory into a tar.gz archive.
### Building a crate for a different target

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@ -1,4 +1,4 @@
{ stdenv, cacert, git, rust, cargo, rustc, fetchcargo, fetchCargoTarball, buildPackages, windows }:
{ stdenv, cacert, git, rust, cargo, rustc, fetchCargoTarball, buildPackages, windows }:
{ name ? "${args.pname}-${args.version}"
, cargoSha256 ? "unset"
@ -14,7 +14,6 @@
, cargoUpdateHook ? ""
, cargoDepsHook ? ""
, cargoBuildFlags ? []
, legacyCargoFetcher ? false
, buildType ? "release"
, meta ? {}
, target ? null
@ -26,21 +25,17 @@ assert buildType == "release" || buildType == "debug";
let
cargoFetcher = if legacyCargoFetcher
then fetchcargo
else fetchCargoTarball;
cargoDeps = if cargoVendorDir == null
then cargoFetcher {
then fetchCargoTarball {
inherit name src srcs sourceRoot unpackPhase cargoUpdateHook;
patches = cargoPatches;
sha256 = cargoSha256;
}
else null;
# If we're using the modern fetcher that always preserves the original Cargo.lock
# and have vendored deps, check them against the src attr for consistency.
validateCargoDeps = cargoSha256 != "unset" && !legacyCargoFetcher;
# If we have a cargoSha256 fixed-output derivation, validate it at build time
# against the src fixed-output derivation to check consistency.
validateCargoDeps = cargoSha256 != "unset";
# Some cargo builds include build hooks that modify their own vendor
# dependencies. This copies the vendor directory into the build tree and makes
@ -50,8 +45,6 @@ let
then (''
unpackFile "$cargoDeps"
cargoDepsCopy=$(stripHash $cargoDeps)
'' + stdenv.lib.optionalString legacyCargoFetcher ''
chmod -R +w "$cargoDepsCopy"
'')
else ''
cargoDepsCopy="$sourceRoot/${cargoVendorDir}"
@ -65,13 +58,9 @@ let
cxxForHost="${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++";
releaseDir = "target/${rustTarget}/${buildType}";
# Fetcher implementation choice should not be part of the hash in final
# derivation; only the cargoSha256 input matters.
filteredArgs = builtins.removeAttrs args [ "legacyCargoFetcher" ];
in
stdenv.mkDerivation (filteredArgs // {
stdenv.mkDerivation (args // {
inherit cargoDeps;
patchRegistryDeps = ./patch-registry-deps;

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@ -1,81 +0,0 @@
{ stdenv, cacert, git, cargo, python3 }:
let cargo-vendor-normalise = stdenv.mkDerivation {
name = "cargo-vendor-normalise";
src = ./cargo-vendor-normalise.py;
nativeBuildInputs = [ python3.pkgs.wrapPython ];
dontUnpack = true;
installPhase = "install -D $src $out/bin/cargo-vendor-normalise";
pythonPath = [ python3.pkgs.toml ];
postFixup = "wrapPythonPrograms";
doInstallCheck = true;
installCheckPhase = ''
# check that ./fetchcargo-default-config.toml is a fix point
reference=${./fetchcargo-default-config.toml}
< $reference $out/bin/cargo-vendor-normalise > test;
cmp test $reference
'';
preferLocalBuild = true;
};
in
{ name ? "cargo-deps"
, src ? null
, srcs ? []
, patches ? []
, sourceRoot
, sha256
, cargoUpdateHook ? ""
, # whenever to also include the Cargo.lock in the output
copyLockfile ? false
, ...
} @ args:
stdenv.mkDerivation ({
name = "${name}-vendor";
nativeBuildInputs = [ cacert git cargo-vendor-normalise cargo ];
phases = "unpackPhase patchPhase installPhase";
installPhase = ''
if [[ ! -f Cargo.lock ]]; then
echo
echo "ERROR: The Cargo.lock file doesn't exist"
echo
echo "Cargo.lock is needed to make sure that cargoSha256 doesn't change"
echo "when the registry is updated."
echo
exit 1
fi
# Keep the original around for copyLockfile
cp Cargo.lock Cargo.lock.orig
export CARGO_HOME=$(mktemp -d cargo-home.XXX)
CARGO_CONFIG=$(mktemp cargo-config.XXXX)
${cargoUpdateHook}
mkdir -p $out
cargo vendor $out | cargo-vendor-normalise > $CARGO_CONFIG
# fetchcargo used to never keep the config output by cargo vendor
# and instead hardcode the config in ./fetchcargo-default-config.toml.
# This broke on packages needing git dependencies, so now we keep the config.
# But not to break old cargoSha256, if the previous behavior was enough,
# we don't store the config.
if ! cmp $CARGO_CONFIG ${./fetchcargo-default-config.toml} > /dev/null; then
install -D $CARGO_CONFIG $out/.cargo/config;
fi;
'' + stdenv.lib.optionalString copyLockfile ''
# add the Cargo.lock to allow hash invalidation
cp Cargo.lock.orig $out/Cargo.lock
'';
outputHashAlgo = "sha256";
outputHashMode = "recursive";
outputHash = sha256;
impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars;
preferLocalBuild = true;
} // (builtins.removeAttrs args [
"name" "sha256" "cargoUpdateHook" "copyLockfile"
]))

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@ -30,14 +30,8 @@
inherit cargo;
};
# N.B. This is a legacy fetcher implementation that is being phased out and deleted.
# See ../../../build-support/rust/README.md for details.
fetchcargo = buildPackages.callPackage ../../../build-support/rust/fetchcargo.nix {
inherit cargo;
};
buildRustPackage = callPackage ../../../build-support/rust {
inherit rustc cargo fetchcargo fetchCargoTarball;
inherit rustc cargo fetchCargoTarball;
};
rustcSrc = callPackage ./rust-src.nix {