feat: add conda/outputs and conda/build_v2 backend protocol

Cargo.toml

@@ -12,9 +12,13 @@ clap = "4.5.29"
 clap-verbosity-flag = "3.0.2"
 either = "1.15.0"
 fs-err = "3.1.0"
+hashlink = "0.10.0"
+insta = "1.43.1"
 indexmap = "2.7.1"
+ordermap = "0.5.7"
 itertools = "0.14.0"
 log = "0.4.25"
+marked-yaml = "0.8.0"
 miette = "7.5.0"
 minijinja = "2.7.0"
 parking_lot = "0.12.3"
@@ -35,19 +39,20 @@ url = "2.5.4"
 pyproject-toml = "0.13.4"
 dirs = "6.0.0"
 pathdiff = "0.2.3"
+thiserror = "2.0.12"
+strum = "0.27.2"
 
 jsonrpc-stdio-server = "18.0.0"
 jsonrpc-http-server = "18.0.0"
 jsonrpc-core = "18.0.0"
 
-rattler-build = { version = "*", default-features = false, features = [
+rattler-build = { git = "https://github.com/prefix-dev/rattler-build", branch = "main", default-features = false, features = [
   "rustls-tls",
 ] }
 
-
-rattler_conda_types = { version = "0.32.0", default-features = false }
-rattler_package_streaming = { version = "0.22.35", default-features = false }
-rattler_virtual_packages = { version = "2.0.9", default-features = false }
+rattler_conda_types = { version = "0.35.3", default-features = false }
+rattler_package_streaming = { version = "0.22.42", default-features = false }
+rattler_virtual_packages = { version = "2.0.16", default-features = false }
 
 pixi_build_types = { version = "*" }
 pixi_consts = { version = "*" }
@@ -80,6 +85,3 @@ pixi_build_type_conversions = { git = "https://github.com/prefix-dev/pixi", bran
 #rattler_virtual_packages = { path = "../rattler/crates/rattler_virtual_packages" }
 #rattler_repodata_gateway = { path = "../rattler/crates/rattler_repodata_gateway" }
 #simple_spawn_blocking = { path = "../rattler/crates/simple_spawn_blocking" }
-
-rattler-build = { git = "https://github.com/prefix-dev/rattler-build", branch = "main" }
-#rattler-build = { path = "../rattler-build" }

crates/pixi-build-backend/Cargo.toml

@@ -10,6 +10,7 @@ clap = { workspace = true, features = ["derive", "env"] }
 clap-verbosity-flag = { workspace = true }
 fs-err = { workspace = true }
 indexmap = { workspace = true }
+ordermap = { workspace = true }
 itertools = { workspace = true }
 log = { workspace = true }
 miette = { workspace = true }
@@ -32,6 +33,7 @@ url = { workspace = true }
 pyproject-toml = { workspace = true }
 dirs = { workspace = true }
 pathdiff = { workspace = true }
+thiserror = { workspace = true }
 
 pixi_build_types = { workspace = true }
 pixi_consts = { workspace = true }

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

@@ -6,7 +6,7 @@ use miette::{Context, IntoDiagnostic};
 use pixi_build_types::{
     BackendCapabilities, ChannelConfiguration, FrontendCapabilities, PlatformAndVirtualPackages,
     procedures::{
-        conda_build::CondaBuildParams,
+        conda_build_v0::CondaBuildParams,
         conda_metadata::{CondaMetadataParams, CondaMetadataResult},
         initialize::InitializeParams,
         negotiate_capabilities::NegotiateCapabilitiesParams,
@@ -93,17 +93,33 @@ pub async fn main<T: ProtocolInstantiator, F: FnOnce(LoggingOutputHandler) -> T>
         Some(Commands::Capabilities) => {
             let backend_capabilities = capabilities::<T>().await?;
             eprintln!(
-                "Supports conda metadata: {}",
+                "Supports {}: {}",
+                pixi_build_types::procedures::conda_metadata::METHOD_NAME,
                 backend_capabilities
                     .provides_conda_metadata
                     .unwrap_or_default()
             );
             eprintln!(
-                "Supports conda build: {}",
+                "Supports {}: {}",
+                pixi_build_types::procedures::conda_outputs::METHOD_NAME,
+                backend_capabilities
+                    .provides_conda_outputs
+                    .unwrap_or_default()
+            );
+            eprintln!(
+                "Supports {}: {}",
+                pixi_build_types::procedures::conda_build_v0::METHOD_NAME,
                 backend_capabilities
                     .provides_conda_build
                     .unwrap_or_default()
             );
+            eprintln!(
+                "Supports {}: {}",
+                pixi_build_types::procedures::conda_build_v1::METHOD_NAME,
+                backend_capabilities
+                    .provides_conda_build_v1
+                    .unwrap_or_default()
+            );
             eprintln!(
                 "Highest project model: {}",
                 backend_capabilities
@@ -156,6 +172,7 @@ async fn initialize<T: ProtocolInstantiator>(
     // Initialize the backend
     let (protocol, _initialize_result) = factory
         .initialize(InitializeParams {
+            source_dir: None,
             manifest_path: manifest_path.to_path_buf(),
             project_model,
             cache_directory: None,
@@ -232,7 +249,7 @@ async fn build<T: ProtocolInstantiator>(factory: T, manifest_path: &Path) -> mie
         .context("failed to create a temporary directory in the current directory")?;
 
     let result = protocol
-        .conda_build(CondaBuildParams {
+        .conda_build_v0(CondaBuildParams {
             host_platform: None,
             build_platform_virtual_packages: None,
             channel_base_urls: None,