feat: add rust backend

Author: nichmor

Cargo.lock

@@ -1,9 +1,8 @@
-//! This module contains some functions that I copied from rattler-build. We
-//! should refactor these.
+//! We could expose the `default_compiler` function from the `rattler-build` crate
 
 use rattler_conda_types::Platform;
 
-pub(crate) fn default_compiler(platform: Platform, language: &str) -> Option<String> {
+pub fn default_compiler(platform: Platform, language: &str) -> Option<String> {
     Some(
         match language {
             // Platform agnostic compilers

crates/pixi-build-cmake/src/stub.rs renamed to crates/pixi-build-backend/src/compilers.rs

@@ -3,6 +3,7 @@ pub mod protocol;
 pub mod server;
 
 pub mod common;
+pub mod compilers;
 mod consts;
 pub mod dependencies;
 pub mod project;

crates/pixi-build-backend/src/lib.rs

@@ -7,6 +7,7 @@ use std::{
 use miette::IntoDiagnostic;
 use pixi_build_backend::{
     common::{requirements, BuildConfigurationParams},
+    compilers::default_compiler,
     traits::{project::new_spec, Dependencies},
 };
 use pixi_build_backend::{ProjectModel, Targets};
@@ -29,7 +30,6 @@ use rattler_package_streaming::write::CompressionLevel;
 use crate::{
     build_script::{BuildPlatform, BuildScriptContext},
     config::CMakeBackendConfig,
-    stub::default_compiler,
 };
 
 pub struct CMakeBuildBackend<P: ProjectModel> {

crates/pixi-build-cmake/src/cmake.rs

@@ -2,7 +2,6 @@ mod build_script;
 mod cmake;
 mod config;
 mod protocol;
-mod stub;
 
 use protocol::CMakeBuildBackendInstantiator;
 

crates/pixi-build-cmake/src/main.rs

@@ -0,0 +1,50 @@
+[package]
+name = "pixi-build-rust"
+version = "0.1.3"
+edition.workspace = true
+
+[dependencies]
+async-trait = { workspace = true }
+chrono = { workspace = true }
+clap = { workspace = true, features = ["derive", "env"] }
+clap-verbosity-flag = { workspace = true }
+fs-err = { workspace = true }
+indexmap = { workspace = true }
+itertools = { workspace = true }
+log = { workspace = true }
+miette = { workspace = true }
+minijinja = { workspace = true }
+parking_lot = { workspace = true }
+rattler_conda_types = { workspace = true }
+rattler_package_streaming = { workspace = true }
+rattler_virtual_packages = { workspace = true }
+rattler-build = { workspace = true }
+reqwest = { workspace = true }
+reqwest-middleware = { workspace = true }
+serde = { workspace = true, features = ["derive"] }
+serde_yaml = { workspace = true }
+serde_json = { workspace = true }
+toml_edit = { workspace = true }
+tempfile = { workspace = true }
+tokio = { workspace = true, features = ["macros"] }
+tracing-subscriber = { workspace = true }
+url = { workspace = true }
+pyproject-toml = { workspace = true }
+dirs = { workspace = true }
+pathdiff = { workspace = true }
+
+pixi-build-backend = { workspace = true }
+
+pixi_build_types = { workspace = true }
+pixi_consts = { workspace = true }
+pixi_manifest = { workspace = true }
+pixi_spec = { workspace = true }
+pixi_build_type_conversions = { workspace = true }
+
+jsonrpc-stdio-server = { workspace = true }
+jsonrpc-http-server = { workspace = true }
+jsonrpc-core = { workspace = true }
+
+[dev-dependencies]
+insta = { version = "1.42.1", features = ["yaml", "redactions", "filters"] }
+toml_edit = { version = "0.22.24" }

crates/pixi-build-rust/Cargo.toml

@@ -0,0 +1,32 @@
+[workspace]
+authors = ["Bas Zalmstra <bas@prefix.dev>"]
+channels = ["conda-forge"]
+description = "Showcases how to create a simple C++ executable with Pixi"
+name = "pixi_build_rust"
+platforms = ["win-64", "linux-64", "osx-64", "osx-arm64"]
+preview = ["pixi-build"]
+version = "0.1.0"
+
+# [tasks.start]
+# # Start the built executable
+# cmd = ".build/bin/sdl_example"
+# depends-on = ["build"]
+
+[package]
+authors = ["Wolf Vollprecht <wolf@prefix.dev>"]
+description = "Showcases how to create a simple C++ executable with Pixi"
+name = "pixi-build-rust"
+version = "0.1.0"
+
+
+[dependencies]
+pixi-build-rust = { path = "." }
+
+[package.build]
+backend = { name = "pixi-build-rust", version = "*" }
+
+# [feature.build.dependencies]
+# cmake = "3.26.4.*"
+# cxx-compiler = "1.5.2.*"
+# make = ">=4.3,<5"
+# ninja = "1.11.1.*"

crates/pixi-build-rust/pixi.lock

@@ -0,0 +1,2 @@
+export OPENSSL_DIR="$PREFIX"
+cargo install --locked --root $PREFIX --path {{ source_dir }} --no-track

crates/pixi-build-rust/pixi.toml

@@ -0,0 +1,28 @@
+
+use minijinja::Environment;
+use serde::Serialize;
+
+#[derive(Serialize)]
+pub struct BuildScriptContext {
+    pub build_platform: BuildPlatform,
+    pub source_dir: String,
+    pub extra_args: Vec<String>,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "kebab-case")]
+pub enum BuildPlatform {
+    Windows,
+    Unix,
+}
+
+impl BuildScriptContext {
+    pub fn render(&self) -> Vec<String> {
+        let env = Environment::new();
+        let template = env
+            .template_from_str(include_str!("build_script.j2"))
+            .unwrap();
+        let rendered = template.render(self).unwrap().to_string();
+        rendered.lines().map(|s| s.to_string()).collect()
+    }
+}