feat: extra build artifacts

.gitignore

@@ -2,6 +2,7 @@
 *.snap.new
 /book/book/
 cargo-dist/wix
+/dist-manifest-schema.json
 
 # Oranda
 oranda-debug.log

Cargo.toml

@@ -28,6 +28,10 @@ targets = ["x86_64-unknown-linux-gnu", "aarch64-apple-darwin", "x86_64-apple-dar
 # Publish jobs to run in CI
 pr-run-mode = "plan"
 
+[[workspace.metadata.dist.extra-artifacts]]
+artifacts = ["dist-manifest-schema.json"]
+build = ["cargo", "run", "--", "dist", "manifest-schema", "--output=dist-manifest-schema.json"]
+
 # The profile that 'cargo dist' will build with
 [profile.dist]
 inherits = "release"

cargo-dist-schema/src/lib.rs

@@ -302,6 +302,9 @@ pub enum ArtifactKind {
     /// A tarball containing the source code
     #[serde(rename = "source-tarball")]
     SourceTarball,
+    /// Some form of extra artifact produced by a sidecar build
+    #[serde(rename = "extra-artifact")]
+    ExtraArtifact,
     /// Unknown to this version of cargo-dist-schema
     ///
     /// This is a fallback for forward/backward-compat

cargo-dist-schema/src/snapshots/cargo_dist_schema__emit.snap

@@ -180,6 +180,21 @@ expression: json_schema
             }
           }
         },
+        {
+          "description": "Some form of extra artifact produced by a sidecar build",
+          "type": "object",
+          "required": [
+            "kind"
+          ],
+          "properties": {
+            "kind": {
+              "type": "string",
+              "enum": [
+                "extra-artifact"
+              ]
+            }
+          }
+        },
         {
           "description": "Unknown to this version of cargo-dist-schema\n\nThis is a fallback for forward/backward-compat",
           "type": "object",

cargo-dist/src/cli.rs

@@ -374,7 +374,11 @@ pub enum OutputFormat {
 }
 
 #[derive(Args, Clone, Debug)]
-pub struct ManifestSchemaArgs {}
+pub struct ManifestSchemaArgs {
+    /// Write the manifest schema to the named file instead of stdout
+    #[clap(long)]
+    pub output: Option<String>,
+}
 
 #[derive(Args, Clone, Debug)]
 pub struct HostArgs {

cargo-dist/src/config.rs

@@ -272,6 +272,10 @@ pub struct DistMetadata {
     /// Hosting provider
     #[serde(skip_serializing_if = "Option::is_none")]
     pub hosting: Option<Vec<HostingStyle>>,
+
+    /// Any extra artifacts and their buildscripts
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub extra_artifacts: Option<Vec<ExtraArtifact>>,
 }
 
 impl DistMetadata {
@@ -308,6 +312,7 @@ impl DistMetadata {
             ssldotcom_windows_sign: _,
             msvc_crt_static: _,
             hosting: _,
+            extra_artifacts: _,
         } = self;
         if let Some(include) = include {
             for include in include {
@@ -353,6 +358,7 @@ impl DistMetadata {
             ssldotcom_windows_sign,
             msvc_crt_static,
             hosting,
+            extra_artifacts,
         } = self;
 
         // Check for global settings on local packages
@@ -444,6 +450,9 @@ impl DistMetadata {
         if publish_jobs.is_none() {
             *publish_jobs = workspace_config.publish_jobs.clone();
         }
+        if extra_artifacts.is_none() {
+            *extra_artifacts = workspace_config.extra_artifacts.clone();
+        }
 
         // This was historically implemented as extend, but I'm not convinced the
         // inconsistency is worth the inconvenience...
@@ -1034,6 +1043,16 @@ pub enum ProductionMode {
     Prod,
 }
 
+/// An extra artifact to upload alongside the release tarballs,
+/// and the build command which produces it.
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct ExtraArtifact {
+    /// The build command to invoke
+    pub build: Vec<String>,
+    /// The artifact(s) produced via this build script
+    pub artifacts: Vec<String>,
+}
+
 impl std::fmt::Display for ProductionMode {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {

cargo-dist/src/generic_build.rs

@@ -3,7 +3,7 @@
 use std::{
     env,
     io::{stderr, Write},
-    process::Command,
+    process::{Command, Output},
 };
 
 use camino::Utf8Path;
@@ -14,7 +14,8 @@ use crate::{
     copy_file,
     env::{calculate_cflags, calculate_ldflags, fetch_brew_env, parse_env, select_brew_env},
     errors::Result,
-    BinaryIdx, BuildStep, DistGraph, DistGraphBuilder, GenericBuildStep, SortedMap, TargetTriple,
+    BinaryIdx, BuildStep, DistGraph, DistGraphBuilder, ExtraBuildStep, GenericBuildStep, SortedMap,
+    TargetTriple,
 };
 
 impl<'a> DistGraphBuilder<'a> {
@@ -72,14 +73,12 @@ fn platform_appropriate_cxx(target: &str) -> &str {
     }
 }
 
-/// Build a generic target
-pub fn build_generic_target(dist_graph: &DistGraph, target: &GenericBuildStep) -> Result<()> {
-    let mut command_string = target.build_command.clone();
-    eprintln!(
-        "building generic target ({} via {})",
-        target.target_triple,
-        command_string.join(" ")
-    );
+fn run_build(
+    dist_graph: &DistGraph,
+    command_string: &[String],
+    target: Option<&str>,
+) -> Result<Output> {
+    let mut command_string = command_string.to_owned();
 
     let mut desired_extra_env = vec![];
     let mut cflags = None;
@@ -109,16 +108,16 @@ pub fn build_generic_target(dist_graph: &DistGraph, target: &GenericBuildStep) -
     // inject into the environment, apply them now.
     command.envs(desired_extra_env);
 
-    // Ensure we inform the build what architecture and platform
-    // it's building for.
-    command.env("CARGO_DIST_TARGET", &target.target_triple);
+    if let Some(target) = target {
+        // Ensure we inform the build what architecture and platform
+        // it's building for.
+        command.env("CARGO_DIST_TARGET", target);
 
-    let cc =
-        std::env::var("CC").unwrap_or(platform_appropriate_cc(&target.target_triple).to_owned());
-    command.env("CC", cc);
-    let cxx =
-        std::env::var("CXX").unwrap_or(platform_appropriate_cxx(&target.target_triple).to_owned());
-    command.env("CXX", cxx);
+        let cc = std::env::var("CC").unwrap_or(platform_appropriate_cc(target).to_owned());
+        command.env("CC", cc);
+        let cxx = std::env::var("CXX").unwrap_or(platform_appropriate_cxx(target).to_owned());
+        command.env("CXX", cxx);
+    }
 
     // Pass CFLAGS/LDFLAGS for C builds
     if let Some(cflags) = cflags {
@@ -133,10 +132,25 @@ pub fn build_generic_target(dist_graph: &DistGraph, target: &GenericBuildStep) -
     }
 
     info!("exec: {:?}", command);
-    let result = command
+    command
         .output()
         .into_diagnostic()
-        .wrap_err_with(|| format!("failed to exec generic build: {command:?}"))?;
+        .wrap_err_with(|| format!("failed to exec generic build: {command:?}"))
+}
+
+/// Build a generic target
+pub fn build_generic_target(dist_graph: &DistGraph, target: &GenericBuildStep) -> Result<()> {
+    eprintln!(
+        "building generic target ({} via {})",
+        target.target_triple,
+        target.build_command.join(" ")
+    );
+
+    let result = run_build(
+        dist_graph,
+        &target.build_command,
+        Some(&target.target_triple),
+    )?;
 
     if !result.status.success() {
         println!("Build exited non-zero: {}", result.status);
@@ -163,3 +177,37 @@ pub fn build_generic_target(dist_graph: &DistGraph, target: &GenericBuildStep) -
 
     Ok(())
 }
+
+/// Similar to the above, but with slightly different signatures since
+/// it's not based around axoproject-identified binaries
+pub fn run_extra_artifacts_build(dist_graph: &DistGraph, target: &ExtraBuildStep) -> Result<()> {
+    eprintln!(
+        "building extra artifacts target (via {})",
+        target.build_command.join(" ")
+    );
+
+    let result = run_build(dist_graph, &target.build_command, None)?;
+    let dest = dist_graph.dist_dir.to_owned();
+
+    if !result.status.success() {
+        println!("Build exited non-zero: {}", result.status);
+    }
+    eprintln!();
+    eprintln!("stdout:");
+    stderr().write_all(&result.stdout).into_diagnostic()?;
+
+    // Check that we got everything we expected, and copy into the distribution path
+    for artifact in &target.expected_artifacts {
+        let binary_path = Utf8Path::new(artifact);
+        if binary_path.exists() {
+            copy_file(binary_path, &dest.join(artifact))?;
+        } else {
+            return Err(miette!(
+                "failed to find bin {} -- did the build above have errors?",
+                binary_path
+            ));
+        }
+    }
+
+    Ok(())
+}

cargo-dist/src/init.rs

@@ -251,6 +251,7 @@ fn get_new_dist_metadata(
             ssldotcom_windows_sign: None,
             msvc_crt_static: None,
             hosting: None,
+            extra_artifacts: None,
         }
     };
 
@@ -770,6 +771,7 @@ fn apply_dist_to_metadata(metadata: &mut toml_edit::Item, meta: &DistMetadata) {
         ssldotcom_windows_sign,
         msvc_crt_static,
         hosting,
+        extra_artifacts: _,
     } = &meta;
 
     apply_optional_value(

cargo-dist/src/lib.rs

@@ -25,7 +25,7 @@ use config::{
     ArtifactMode, ChecksumStyle, CompressionImpl, Config, DirtyMode, GenerateMode, ZipStyle,
 };
 use console::Term;
-use generic_build::build_generic_target;
+use generic_build::{build_generic_target, run_extra_artifacts_build};
 use semver::Version;
 use tracing::info;
 
@@ -138,6 +138,7 @@ fn run_build_step(
             prefix,
             target,
         }) => Ok(generate_source_tarball(committish, prefix, target)?),
+        BuildStep::Extra(target) => run_extra_artifacts_build(dist_graph, target),
     }
 }
 

cargo-dist/src/main.rs

@@ -4,6 +4,7 @@
 
 use std::io::Write;
 
+use axoasset::LocalAsset;
 use camino::Utf8PathBuf;
 // Import everything from the lib version of ourselves
 use cargo_dist::{linkage::Linkage, *};
@@ -492,10 +493,16 @@ fn print_help_markdown(out: &mut dyn Write) -> std::io::Result<()> {
 
 fn cmd_manifest_schema(
     _config: &Cli,
-    _args: &cli::ManifestSchemaArgs,
+    args: &cli::ManifestSchemaArgs,
 ) -> Result<(), miette::ErrReport> {
     let schema = cargo_dist_schema::DistManifest::json_schema();
     let json_schema = serde_json::to_string_pretty(&schema).expect("failed to stringify schema!?");
-    println!("{json_schema}");
+
+    if let Some(destination) = args.output.to_owned() {
+        let contents = json_schema + "\n";
+        LocalAsset::write_new(&contents, destination)?;
+    } else {
+        println!("{json_schema}");
+    }
     Ok(())
 }

cargo-dist/src/manifest.rs

@@ -274,6 +274,11 @@ fn manifest_artifact(
             description = None;
             kind = cargo_dist_schema::ArtifactKind::SourceTarball;
         }
+        ArtifactKind::ExtraArtifact(_) => {
+            install_hint = None;
+            description = None;
+            kind = cargo_dist_schema::ArtifactKind::ExtraArtifact;
+        }
     };
 
     let checksum = artifact.checksum.map(|idx| dist.artifact(idx).id.clone());