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nix flakes support #64

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sb10q merged 7 commits from mwojcik/thermostat:nixflakes into master 2022-01-19 11:13:47 +08:00
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@ -27,45 +27,51 @@
rustc = rust;
cargo = rust;
});
cargoSha256 = "0qb4s06jwgj3i9df6qq9gwcnyr3jq6dh4l5ygjghq5x1bmcqliix";
buildStm32Firmware = { name, src, cargoDepsName ? name, patchPhase ? "", extraNativeBuildInputs ? [], checkPhase ? "", doCheck ? true, binaryName ? name, extraCargoBuildArgs ? "" }:
rustPlatform.buildRustPackage rec {
inherit name cargoDepsName;
version = "0.0.0";
thermostat = rustPlatform.buildRustPackage rec {
name = "thermostat";
version = "0.0.0";
inherit src;
inherit cargoSha256;
inherit patchPhase;
nativeBuildInputs = [ pkgs.llvm ] ++ extraNativeBuildInputs;
buildPhase = ''
export CARGO_HOME=$(mktemp -d cargo-home.XXX)
cargo build --release --bin ${binaryName} ${extraCargoBuildArgs}
'';
inherit checkPhase doCheck;
# binaryName defaults to the `name` arg (i.e. the Rust package name);
# it is used as the Cargo binary filename
installPhase = ''
mkdir -p $out $out/nix-support
cp target/thumbv7em-none-eabihf/release/${binaryName} $out/${name}.elf
echo file binary-dist $out/${name}.elf >> $out/nix-support/hydra-build-products
llvm-objcopy -O binary target/thumbv7em-none-eabihf/release/${binaryName} $out/${name}.bin
echo file binary-dist $out/${name}.bin >> $out/nix-support/hydra-build-products
'';
dontFixup = true;
};
in {
packages.x86_64-linux = rec {
thermostat = buildStm32Firmware {
name = "thermostat";
src = self;
checkPhase = ''
cargo test --target=${pkgs.rust.toRustTarget pkgs.stdenv.targetPlatform};
'';
src = self;
cargoLock = {
lockFile = ./Cargo.lock;
outputHashes = {
"stm32-eth-0.2.0" = "sha256-HXRr/NDhdIKqyjdA4D8ZmcO1dDpDawdlYPUOwcEbPQk=";
"stm32f4xx-hal-0.8.3" = "sha256-MOv7tVtVMxr3IYMaN0Q8EQWxv3rubmCxjXMXuw/ZKAw=";
};
};
patchPhase = "";
nativeBuildInputs = [ pkgs.llvm ];
buildPhase = ''
sb10q commented 2022-01-18 11:05:16 +08:00
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cargoBuildFlags?

cargoBuildFlags?
mwojcik commented 2022-01-18 11:18:04 +08:00
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Is there API of that function described somewhere for quick reference? Besides the little tutorial section...

Is there API of that function described somewhere for quick reference? Besides the little tutorial section...
mwojcik commented 2022-01-18 11:27:27 +08:00
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Actually, using just cargoBuildFlags (--bin thermostat as release is already included) causes the build to fail, as the default builder forces --target=x86_64-linux.

Actually, using just cargoBuildFlags (``--bin thermostat`` as release is already included) causes the build to fail, as the default builder forces ``--target=x86_64-linux``.
sb10q commented 2022-01-18 11:38:40 +08:00
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One usually has to RTFS of nixpkgs for this kind of extended documentation :)
If there's no easy solution then overriding buildPhase is fine.

One usually has to RTFS of nixpkgs for this kind of extended documentation :) If there's no easy solution then overriding buildPhase is fine.
export CARGO_HOME=$(mktemp -d cargo-home.XXX)
cargo build --release --bin thermostat
'';
checkPhase = ''
cargo test --target=${pkgs.rust.toRustTarget pkgs.stdenv.targetPlatform};
'';
# binaryName defaults to the `name` arg (i.e. the Rust package name);
# it is used as the Cargo binary filename
installPhase = ''
mkdir -p $out $out/nix-support
cp target/thumbv7em-none-eabihf/release/thermostat $out/thermostat.elf
echo file binary-dist $out/thermostat.elf >> $out/nix-support/hydra-build-products
llvm-objcopy -O binary target/thumbv7em-none-eabihf/release/thermostat $out/thermostat.bin
echo file binary-dist $out/thermostat.bin >> $out/nix-support/hydra-build-products
'';
dontFixup = true;
};
in rec {
packages.x86_64-linux = rec {
inherit thermostat;
};
hydraJobs = {
inherit (packages.x86_64-linux) thermostat;
sb10q commented 2022-01-18 11:06:20 +08:00
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gcc?

gcc?
};
sb10q commented 2022-01-18 11:06:54 +08:00
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Did you test this? I think this doesn't work and you need python3.withPackages instead.

Did you test this? I think this doesn't work and you need ``python3.withPackages`` instead.
mwojcik commented 2022-01-18 11:18:34 +08:00
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Weirdly enough it seems to work

❯ nix develop

[spaqin@hera:~/m-labs/thermostat]$ python
Python 3.9.6 (default, Jun 28 2021, 08:57:49) 
[GCC 10.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>> import matplotlib
>>>
Weirdly enough it seems to work ```shell ❯ nix develop [spaqin@hera:~/m-labs/thermostat]$ python Python 3.9.6 (default, Jun 28 2021, 08:57:49) [GCC 10.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import numpy >>> import matplotlib >>> ```
sb10q commented 2022-01-18 11:41:34 +08:00
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This is the lab computer and those packages are already included in the system Python. You can use nix develop --ignore-environment to isolate the system profile (see https://github.com/NixOS/nix/issues/4359).

This is the lab computer and those packages are already included in the system Python. You can use ``nix develop --ignore-environment`` to isolate the system profile (see https://github.com/NixOS/nix/issues/4359).
mwojcik commented 2022-01-18 11:43:10 +08:00
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Still available:

❯ nix develop --ignore-environment
bash-5.1$ python
Python 3.9.6 (default, Jun 28 2021, 08:57:49) 
[GCC 10.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>> import numpy 
>>>
Still available: ```shell ❯ nix develop --ignore-environment bash-5.1$ python Python 3.9.6 (default, Jun 28 2021, 08:57:49) [GCC 10.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import matplotlib >>> import numpy >>> ```
devShell.x86_64-linux = pkgs.mkShell {
name = "thermostat-dev-shell";
buildInputs = with pkgs; [
@ -76,6 +82,6 @@
numpy matplotlib
]);
};
defaultPackage.x86_64-linux = pkgs.python3.withPackages(ps: [ ]);
defaultPackage.x86_64-linux = thermostat;
};
}