Move crates under a sub folder to clean up the code

crates/xtask/Cargo.toml

@@ -0,0 +1,44 @@
+[package]
+name = "xtask"
+version.workspace = true
+authors.workspace = true
+description = "Workspace automation tool following the xtask pattern <https://github.com/matklad/cargo-xtask>"
+homepage.workspace = true
+readme.workspace = true
+edition.workspace = true
+license.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.86"
+build-info = { version = "1.7.0", path = "../build-info" }
+cargo_metadata = "0.18.1"
+clap = { version = "4.5.9", features = ["derive"] }
+futures-core = "0.3.30"
+futures-util = "0.3.30"
+reqwest = { version = "0.12.5", features = [
+    "stream",
+    "json",
+    "rustls-tls",
+], default-features = false }
+serde = { version = "1.0.204", features = ["derive"] }
+serde_json = "1.0.120"
+sha2 = "0.10.8"
+sysinfo = "0.30.13"
+time = { version = "0.3.36", features = [
+    "serde",
+    "serde-human-readable",
+    "macros",
+] }
+tokio = { version = "1.38.0", features = [
+    "rt",
+    "net",
+    "time",
+    "process",
+    "signal",
+] }
+tracing = "0.1.40"
+tracing-subscriber = "0.3.18"
+tracing-trace = { version = "0.1.0", path = "../tracing-trace" }
+uuid = { version = "1.10.0", features = ["v7", "serde"] }

crates/xtask/src/bench/assets.rs

@@ -0,0 +1,250 @@
+use std::collections::BTreeMap;
+use std::io::{Read as _, Seek as _, Write as _};
+
+use anyhow::{bail, Context};
+use futures_util::TryStreamExt as _;
+use serde::Deserialize;
+use sha2::Digest;
+
+use super::client::Client;
+
+#[derive(Deserialize, Clone)]
+pub struct Asset {
+    pub local_location: Option<String>,
+    pub remote_location: Option<String>,
+    #[serde(default)]
+    pub format: AssetFormat,
+    pub sha256: Option<String>,
+}
+
+#[derive(Deserialize, Default, Copy, Clone)]
+pub enum AssetFormat {
+    #[default]
+    Auto,
+    Json,
+    NdJson,
+    Raw,
+}
+
+impl AssetFormat {
+    pub fn to_content_type(self, filename: &str) -> &'static str {
+        match self {
+            AssetFormat::Auto => Self::auto_detect(filename).to_content_type(filename),
+            AssetFormat::Json => "application/json",
+            AssetFormat::NdJson => "application/x-ndjson",
+            AssetFormat::Raw => "application/octet-stream",
+        }
+    }
+
+    fn auto_detect(filename: &str) -> Self {
+        let path = std::path::Path::new(filename);
+        match path.extension().and_then(|extension| extension.to_str()) {
+            Some(extension) if extension.eq_ignore_ascii_case("json") => Self::Json,
+            Some(extension) if extension.eq_ignore_ascii_case("ndjson") => Self::NdJson,
+            extension => {
+                tracing::warn!(asset = filename, ?extension, "asset has format `Auto`, but extension was not recognized. Specify `Raw` format to suppress this warning.");
+                AssetFormat::Raw
+            }
+        }
+    }
+}
+
+pub fn fetch_asset(
+    name: &str,
+    assets: &BTreeMap<String, Asset>,
+    asset_folder: &str,
+) -> anyhow::Result<(std::fs::File, AssetFormat)> {
+    let asset =
+        assets.get(name).with_context(|| format!("could not find asset with name '{name}'"))?;
+    let filename = if let Some(local_filename) = &asset.local_location {
+        local_filename.clone()
+    } else {
+        format!("{asset_folder}/{name}")
+    };
+
+    Ok((
+        std::fs::File::open(&filename)
+            .with_context(|| format!("could not open asset '{name}' at '{filename}'"))?,
+        asset.format,
+    ))
+}
+
+#[tracing::instrument(skip(client, assets), fields(asset_count = assets.len()))]
+pub async fn fetch_assets(
+    client: &Client,
+    assets: &BTreeMap<String, Asset>,
+    asset_folder: &str,
+) -> anyhow::Result<()> {
+    let mut download_tasks = tokio::task::JoinSet::new();
+    for (name, asset) in assets {
+        // trying local
+        if let Some(local) = &asset.local_location {
+            match std::fs::File::open(local) {
+                Ok(file) => {
+                    if check_sha256(name, asset, file)? {
+                        continue;
+                    } else {
+                        tracing::warn!(asset = name, file = local, "found local resource for asset but hash differed, skipping to asset store");
+                    }
+                }
+                Err(error) => match error.kind() {
+                    std::io::ErrorKind::NotFound => { /* file does not exist, go to remote, no need for logs */
+                    }
+                    _ => tracing::warn!(
+                        error = &error as &dyn std::error::Error,
+                        "error checking local resource, skipping to asset store"
+                    ),
+                },
+            }
+        }
+
+        // checking asset store
+        let store_filename = format!("{}/{}", asset_folder, name);
+
+        match std::fs::File::open(&store_filename) {
+            Ok(file) => {
+                if check_sha256(name, asset, file)? {
+                    continue;
+                } else {
+                    tracing::warn!(asset = name, file = store_filename, "found resource for asset in asset store, but hash differed, skipping to remote method");
+                }
+            }
+            Err(error) => match error.kind() {
+                std::io::ErrorKind::NotFound => { /* file does not exist, go to remote, no need for logs */
+                }
+                _ => tracing::warn!(
+                    error = &error as &dyn std::error::Error,
+                    "error checking resource in store, skipping to remote method"
+                ),
+            },
+        }
+
+        // downloading remote
+        match &asset.remote_location {
+            Some(location) => {
+                std::fs::create_dir_all(asset_folder).with_context(|| format!("could not create asset folder at {asset_folder}"))?;
+                download_tasks.spawn({
+                    let client = client.clone();
+                    let name = name.to_string();
+                    let location = location.to_string();
+                    let store_filename = store_filename.clone();
+                    let asset = asset.clone();
+                    download_asset(client, name, asset, location, store_filename)});
+            },
+            None => bail!("asset {name} has no remote location, but was not found locally or in the asset store"),
+        }
+    }
+
+    while let Some(res) = download_tasks.join_next().await {
+        res.context("download task panicked")?.context("download task failed")?;
+    }
+
+    Ok(())
+}
+
+fn check_sha256(name: &str, asset: &Asset, mut file: std::fs::File) -> anyhow::Result<bool> {
+    let mut bytes = Vec::new();
+    file.read_to_end(&mut bytes).with_context(|| format!("hashing file for asset {name}"))?;
+    let mut file_hash = sha2::Sha256::new();
+    file_hash.update(&bytes);
+    let file_hash = file_hash.finalize();
+    let file_hash = format!("{:x}", file_hash);
+    tracing::debug!(hash = file_hash, "hashed local file");
+
+    Ok(match &asset.sha256 {
+        Some(hash) => {
+            tracing::debug!(hash, "hash from workload");
+            if hash.to_ascii_lowercase() == file_hash {
+                true
+            } else {
+                tracing::warn!(
+                    file_hash,
+                    asset_hash = hash.to_ascii_lowercase(),
+                    "hashes don't match"
+                );
+                false
+            }
+        }
+        None => {
+            tracing::warn!(sha256 = file_hash, "Skipping hash for asset {name} that doesn't have one. Please add it to workload file");
+            true
+        }
+    })
+}
+
+#[tracing::instrument(skip(client, asset, name), fields(asset = name))]
+async fn download_asset(
+    client: Client,
+    name: String,
+    asset: Asset,
+    src: String,
+    dest_filename: String,
+) -> anyhow::Result<()> {
+    let context = || format!("failure downloading asset {name} from {src}");
+
+    let response = client.get(&src).send().await.with_context(context)?;
+
+    let file = std::fs::File::options()
+        .create(true)
+        .truncate(true)
+        .write(true)
+        .read(true)
+        .open(&dest_filename)
+        .with_context(|| format!("creating destination file {dest_filename}"))
+        .with_context(context)?;
+
+    let mut dest = std::io::BufWriter::new(
+        file.try_clone().context("cloning I/O handle").with_context(context)?,
+    );
+
+    let total_len: Option<u64> = response
+        .headers()
+        .get(reqwest::header::CONTENT_LENGTH)
+        .and_then(|value| value.to_str().ok())
+        .and_then(|value| value.parse().ok());
+
+    let progress = tokio::spawn({
+        let name = name.clone();
+        async move {
+            loop {
+                match file.metadata().context("could not get file metadata") {
+                    Ok(metadata) => {
+                        let len = metadata.len();
+                        tracing::info!(
+                            asset = name,
+                            downloaded_bytes = len,
+                            total_bytes = total_len,
+                            "asset download in progress"
+                        );
+                    }
+                    Err(error) => {
+                        tracing::warn!(%error, "could not get file metadata");
+                    }
+                }
+                tokio::time::sleep(std::time::Duration::from_secs(60)).await;
+            }
+        }
+    });
+
+    let writing_context = || format!("while writing to destination file at {dest_filename}");
+
+    let mut response = response.bytes_stream();
+
+    while let Some(bytes) =
+        response.try_next().await.context("while downloading file").with_context(context)?
+    {
+        dest.write_all(&bytes).with_context(writing_context).with_context(context)?;
+    }
+
+    progress.abort();
+
+    let mut file = dest.into_inner().with_context(writing_context).with_context(context)?;
+
+    file.rewind().context("while rewinding asset file")?;
+
+    if !check_sha256(&name, &asset, file)? {
+        bail!("asset '{name}': sha256 mismatch for file {dest_filename} downloaded from {src}")
+    }
+
+    Ok(())
+}

crates/xtask/src/bench/client.rs

@@ -0,0 +1,84 @@
+use anyhow::Context;
+use serde::Deserialize;
+
+#[derive(Debug, Clone)]
+pub struct Client {
+    base_url: Option<String>,
+    client: reqwest::Client,
+}
+
+impl Client {
+    pub fn new(
+        base_url: Option<String>,
+        api_key: Option<&str>,
+        timeout: Option<std::time::Duration>,
+    ) -> anyhow::Result<Self> {
+        let mut headers = reqwest::header::HeaderMap::new();
+        if let Some(api_key) = api_key {
+            headers.append(
+                reqwest::header::AUTHORIZATION,
+                reqwest::header::HeaderValue::from_str(&format!("Bearer {api_key}"))
+                    .context("Invalid authorization header")?,
+            );
+        }
+
+        let client = reqwest::ClientBuilder::new().default_headers(headers);
+        let client = if let Some(timeout) = timeout { client.timeout(timeout) } else { client };
+        let client = client.build()?;
+        Ok(Self { base_url, client })
+    }
+
+    pub fn request(&self, method: reqwest::Method, route: &str) -> reqwest::RequestBuilder {
+        if let Some(base_url) = &self.base_url {
+            if route.is_empty() {
+                self.client.request(method, base_url)
+            } else {
+                self.client.request(method, format!("{}/{}", base_url, route))
+            }
+        } else {
+            self.client.request(method, route)
+        }
+    }
+
+    pub fn get(&self, route: &str) -> reqwest::RequestBuilder {
+        self.request(reqwest::Method::GET, route)
+    }
+
+    pub fn put(&self, route: &str) -> reqwest::RequestBuilder {
+        self.request(reqwest::Method::PUT, route)
+    }
+
+    pub fn post(&self, route: &str) -> reqwest::RequestBuilder {
+        self.request(reqwest::Method::POST, route)
+    }
+
+    pub fn delete(&self, route: &str) -> reqwest::RequestBuilder {
+        self.request(reqwest::Method::DELETE, route)
+    }
+
+    pub fn base_url(&self) -> Option<&str> {
+        self.base_url.as_deref()
+    }
+}
+
+#[derive(Debug, Clone, Copy, Deserialize)]
+#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
+pub enum Method {
+    Get,
+    Post,
+    Patch,
+    Delete,
+    Put,
+}
+
+impl From<Method> for reqwest::Method {
+    fn from(value: Method) -> Self {
+        match value {
+            Method::Get => Self::GET,
+            Method::Post => Self::POST,
+            Method::Patch => Self::PATCH,
+            Method::Delete => Self::DELETE,
+            Method::Put => Self::PUT,
+        }
+    }
+}

crates/xtask/src/bench/command.rs

@@ -0,0 +1,194 @@
+use std::collections::BTreeMap;
+use std::fmt::Display;
+use std::io::Read as _;
+
+use anyhow::{bail, Context as _};
+use serde::Deserialize;
+
+use super::assets::{fetch_asset, Asset};
+use super::client::{Client, Method};
+
+#[derive(Clone, Deserialize)]
+pub struct Command {
+    pub route: String,
+    pub method: Method,
+    #[serde(default)]
+    pub body: Body,
+    #[serde(default)]
+    pub synchronous: SyncMode,
+}
+
+#[derive(Default, Clone, Deserialize)]
+#[serde(untagged)]
+pub enum Body {
+    Inline {
+        inline: serde_json::Value,
+    },
+    Asset {
+        asset: String,
+    },
+    #[default]
+    Empty,
+}
+
+impl Body {
+    pub fn get(
+        self,
+        assets: &BTreeMap<String, Asset>,
+        asset_folder: &str,
+    ) -> anyhow::Result<Option<(Vec<u8>, &'static str)>> {
+        Ok(match self {
+            Body::Inline { inline: body } => Some((
+                serde_json::to_vec(&body)
+                    .context("serializing to bytes")
+                    .context("while getting inline body")?,
+                "application/json",
+            )),
+            Body::Asset { asset: name } => Some({
+                let context = || format!("while getting body from asset '{name}'");
+                let (mut file, format) =
+                    fetch_asset(&name, assets, asset_folder).with_context(context)?;
+                let mut buf = Vec::new();
+                file.read_to_end(&mut buf).with_context(context)?;
+                (buf, format.to_content_type(&name))
+            }),
+            Body::Empty => None,
+        })
+    }
+}
+
+impl Display for Command {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{:?} {} ({:?})", self.method, self.route, self.synchronous)
+    }
+}
+
+#[derive(Default, Debug, Clone, Copy, Deserialize)]
+pub enum SyncMode {
+    DontWait,
+    #[default]
+    WaitForResponse,
+    WaitForTask,
+}
+
+pub async fn run_batch(
+    client: &Client,
+    batch: &[Command],
+    assets: &BTreeMap<String, Asset>,
+    asset_folder: &str,
+) -> anyhow::Result<()> {
+    let [.., last] = batch else { return Ok(()) };
+    let sync = last.synchronous;
+
+    let mut tasks = tokio::task::JoinSet::new();
+
+    for command in batch {
+        // FIXME: you probably don't want to copy assets everytime here
+        tasks.spawn({
+            let client = client.clone();
+            let command = command.clone();
+            let assets = assets.clone();
+            let asset_folder = asset_folder.to_owned();
+
+            async move { run(client, command, &assets, &asset_folder).await }
+        });
+    }
+
+    while let Some(result) = tasks.join_next().await {
+        result
+            .context("panicked while executing command")?
+            .context("error while executing command")?;
+    }
+
+    match sync {
+        SyncMode::DontWait => {}
+        SyncMode::WaitForResponse => {}
+        SyncMode::WaitForTask => wait_for_tasks(client).await?,
+    }
+
+    Ok(())
+}
+
+async fn wait_for_tasks(client: &Client) -> anyhow::Result<()> {
+    loop {
+        let response = client
+            .get("tasks?statuses=enqueued,processing")
+            .send()
+            .await
+            .context("could not wait for tasks")?;
+        let response: serde_json::Value = response
+            .json()
+            .await
+            .context("could not deserialize response to JSON")
+            .context("could not wait for tasks")?;
+        match response.get("total") {
+            Some(serde_json::Value::Number(number)) => {
+                let number = number.as_u64().with_context(|| {
+                    format!("waiting for tasks: could not parse 'total' as integer, got {}", number)
+                })?;
+                if number == 0 {
+                    break;
+                } else {
+                    tokio::time::sleep(std::time::Duration::from_secs(1)).await;
+                    continue;
+                }
+            }
+            Some(thing_else) => {
+                bail!(format!(
+                    "waiting for tasks: could not parse 'total' as a number, got '{thing_else}'"
+                ))
+            }
+            None => {
+                bail!(format!(
+                    "waiting for tasks: expected response to contain 'total', got '{response}'"
+                ))
+            }
+        }
+    }
+    Ok(())
+}
+
+#[tracing::instrument(skip(client, command, assets, asset_folder), fields(command = %command))]
+pub async fn run(
+    client: Client,
+    mut command: Command,
+    assets: &BTreeMap<String, Asset>,
+    asset_folder: &str,
+) -> anyhow::Result<()> {
+    // memtake the body here to leave an empty body in its place, so that command is not partially moved-out
+    let body = std::mem::take(&mut command.body)
+        .get(assets, asset_folder)
+        .with_context(|| format!("while getting body for command {command}"))?;
+
+    let request = client.request(command.method.into(), &command.route);
+
+    let request = if let Some((body, content_type)) = body {
+        request.body(body).header(reqwest::header::CONTENT_TYPE, content_type)
+    } else {
+        request
+    };
+
+    let response =
+        request.send().await.with_context(|| format!("error sending command: {}", command))?;
+
+    let code = response.status();
+    if code.is_client_error() {
+        tracing::error!(%command, %code, "error in workload file");
+        let response: serde_json::Value = response
+            .json()
+            .await
+            .context("could not deserialize response as JSON")
+            .context("parsing error in workload file when sending command")?;
+        bail!("error in workload file: server responded with error code {code} and '{response}'")
+    } else if code.is_server_error() {
+        tracing::error!(%command, %code, "server error");
+        let response: serde_json::Value = response
+            .json()
+            .await
+            .context("could not deserialize response as JSON")
+            .context("parsing server error when sending command")?;
+        bail!("server error: server responded with error code {code} and '{response}'")
+    }
+
+    Ok(())
+}

crates/xtask/src/bench/dashboard.rs

@@ -0,0 +1,210 @@
+use std::collections::BTreeMap;
+
+use anyhow::{bail, Context};
+use serde_json::json;
+use tokio::signal::ctrl_c;
+use tokio::task::AbortHandle;
+use tracing_trace::processor::span_stats::CallStats;
+use uuid::Uuid;
+
+use super::client::Client;
+use super::env_info;
+use super::workload::Workload;
+
+#[derive(Debug, Clone)]
+pub enum DashboardClient {
+    Client(Client),
+    Dry,
+}
+
+impl DashboardClient {
+    pub fn new(dashboard_url: String, api_key: Option<&str>) -> anyhow::Result<Self> {
+        let dashboard_client =
+            Client::new(Some(dashboard_url), api_key, Some(std::time::Duration::from_secs(60)))?;
+
+        Ok(Self::Client(dashboard_client))
+    }
+
+    pub fn new_dry() -> Self {
+        Self::Dry
+    }
+
+    pub async fn send_machine_info(&self, env: &env_info::Environment) -> anyhow::Result<()> {
+        let Self::Client(dashboard_client) = self else { return Ok(()) };
+
+        let response = dashboard_client
+            .put("/api/v1/machine")
+            .json(&json!({"hostname": env.hostname}))
+            .send()
+            .await
+            .context("sending machine information")?;
+        if !response.status().is_success() {
+            bail!(
+                "could not send machine information: {} {}",
+                response.status(),
+                response.text().await.unwrap_or_else(|_| "unknown".into())
+            );
+        }
+        Ok(())
+    }
+
+    pub async fn create_invocation(
+        &self,
+        build_info: build_info::BuildInfo,
+        commit_message: &str,
+        env: env_info::Environment,
+        max_workloads: usize,
+        reason: Option<&str>,
+    ) -> anyhow::Result<Uuid> {
+        let Self::Client(dashboard_client) = self else { return Ok(Uuid::now_v7()) };
+
+        let response = dashboard_client
+            .put("/api/v1/invocation")
+            .json(&json!({
+                "commit": {
+                    "sha1": build_info.commit_sha1,
+                    "message": commit_message,
+                    "commit_date": build_info.commit_timestamp,
+                    "branch": build_info.branch,
+                    "tag": build_info.describe.and_then(|describe| describe.as_tag()),
+                },
+                "machine_hostname": env.hostname,
+                "max_workloads": max_workloads,
+                "reason": reason
+            }))
+            .send()
+            .await
+            .context("sending invocation")?;
+        if !response.status().is_success() {
+            bail!(
+                "could not send new invocation: {}",
+                response.text().await.unwrap_or_else(|_| "unknown".into())
+            );
+        }
+        let invocation_uuid: Uuid =
+            response.json().await.context("could not deserialize invocation response as JSON")?;
+        Ok(invocation_uuid)
+    }
+
+    pub async fn create_workload(
+        &self,
+        invocation_uuid: Uuid,
+        workload: &Workload,
+    ) -> anyhow::Result<Uuid> {
+        let Self::Client(dashboard_client) = self else { return Ok(Uuid::now_v7()) };
+
+        let response = dashboard_client
+            .put("/api/v1/workload")
+            .json(&json!({
+                "invocation_uuid": invocation_uuid,
+                "name": &workload.name,
+                "max_runs": workload.run_count,
+            }))
+            .send()
+            .await
+            .context("could not create new workload")?;
+
+        if !response.status().is_success() {
+            bail!("creating new workload failed: {}", response.text().await.unwrap())
+        }
+
+        let workload_uuid: Uuid =
+            response.json().await.context("could not deserialize JSON as UUID")?;
+        Ok(workload_uuid)
+    }
+
+    pub async fn create_run(
+        &self,
+        workload_uuid: Uuid,
+        report: &BTreeMap<String, CallStats>,
+    ) -> anyhow::Result<()> {
+        let Self::Client(dashboard_client) = self else { return Ok(()) };
+
+        let response = dashboard_client
+            .put("/api/v1/run")
+            .json(&json!({
+                "workload_uuid": workload_uuid,
+                "data": report
+            }))
+            .send()
+            .await
+            .context("sending new run")?;
+        if !response.status().is_success() {
+            bail!(
+                "sending new run failed: {}",
+                response.text().await.unwrap_or_else(|_| "unknown".into())
+            )
+        }
+        Ok(())
+    }
+
+    pub async fn cancel_on_ctrl_c(self, invocation_uuid: Uuid, abort_handle: AbortHandle) {
+        tracing::info!("press Ctrl-C to cancel the invocation");
+        match ctrl_c().await {
+            Ok(()) => {
+                tracing::info!(%invocation_uuid, "received Ctrl-C, cancelling invocation");
+                self.mark_as_failed(invocation_uuid, None).await;
+                abort_handle.abort();
+            }
+            Err(error) => tracing::warn!(
+                error = &error as &dyn std::error::Error,
+                "failed to listen to Ctrl-C signal, invocation won't be canceled on Ctrl-C"
+            ),
+        }
+    }
+
+    pub async fn mark_as_failed(&self, invocation_uuid: Uuid, failure_reason: Option<String>) {
+        if let DashboardClient::Client(client) = self {
+            let response = client
+                .post("/api/v1/cancel-invocation")
+                .json(&json!({
+                    "invocation_uuid": invocation_uuid,
+                    "failure_reason": failure_reason,
+                }))
+                .send()
+                .await;
+            let response = match response {
+                Ok(response) => response,
+                Err(response_error) => {
+                    tracing::error!(error = &response_error as &dyn std::error::Error, %invocation_uuid, "could not mark invocation as failed");
+                    return;
+                }
+            };
+
+            if !response.status().is_success() {
+                tracing::error!(
+                    %invocation_uuid,
+                    "could not mark invocation as failed: {}",
+                    response.text().await.unwrap()
+                );
+                return;
+            }
+        }
+
+        tracing::warn!(%invocation_uuid, "marked invocation as failed or canceled");
+    }
+
+    /// Result URL in markdown
+    pub(crate) fn result_url(
+        &self,
+        workload_name: &str,
+        build_info: &build_info::BuildInfo,
+        baseline_branch: &str,
+    ) -> String {
+        let Self::Client(client) = self else { return Default::default() };
+        let Some(base_url) = client.base_url() else { return Default::default() };
+
+        let Some(commit_sha1) = build_info.commit_sha1 else { return Default::default() };
+
+        // https://bench.meilisearch.dev/view_spans?commit_sha1=500ddc76b549fb9f1af54b2dd6abfa15960381bb&workload_name=settings-add-remove-filters.json&target_branch=reduce-transform-disk-usage&baseline_branch=main
+        let mut url = format!(
+            "{base_url}/view_spans?commit_sha1={commit_sha1}&workload_name={workload_name}"
+        );
+
+        if let Some(target_branch) = build_info.branch {
+            url += &format!("&target_branch={target_branch}&baseline_branch={baseline_branch}");
+        }
+
+        format!("[{workload_name} compared with {baseline_branch}]({url})")
+    }
+}

crates/xtask/src/bench/env_info.rs

@@ -0,0 +1,75 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Environment {
+    pub hostname: Option<String>,
+    pub cpu: String,
+
+    /// Advertised or nominal clock speed in Hertz.
+    pub clock_speed: u64,
+
+    /// Total number of bytes of memory provided by the system. */
+    pub memory: u64,
+    pub os_type: String,
+    pub software: Vec<VersionInfo>,
+
+    pub user_name: String,
+
+    /// Is set true when the data was gathered by a manual run,
+    /// possibly on a developer machine, instead of the usual benchmark server.
+    pub manual_run: bool,
+}
+
+impl Environment {
+    pub fn generate_from_current_config() -> Self {
+        use sysinfo::System;
+
+        let unknown_string = String::from("Unknown");
+        let mut system = System::new();
+        system.refresh_cpu();
+        system.refresh_cpu_frequency();
+        system.refresh_memory();
+
+        let (cpu, frequency) = match system.cpus().first() {
+            Some(cpu) => (
+                format!("{} @ {:.2}GHz", cpu.brand(), cpu.frequency() as f64 / 1000.0),
+                cpu.frequency() * 1_000_000,
+            ),
+            None => (unknown_string.clone(), 0),
+        };
+
+        let mut software = Vec::new();
+        if let Some(distribution) = System::name() {
+            software
+                .push(VersionInfo { name: distribution, version: String::from("distribution") });
+        }
+        if let Some(kernel) = System::kernel_version() {
+            software.push(VersionInfo { name: kernel, version: String::from("kernel") });
+        }
+        if let Some(os) = System::os_version() {
+            software.push(VersionInfo { name: os, version: String::from("kernel-release") });
+        }
+        if let Some(arch) = System::cpu_arch() {
+            software.push(VersionInfo { name: arch, version: String::from("arch") });
+        }
+
+        Self {
+            hostname: System::host_name(),
+            cpu,
+            clock_speed: frequency,
+            memory: system.total_memory(),
+            os_type: System::long_os_version().unwrap_or(unknown_string.clone()),
+            user_name: System::name().unwrap_or(unknown_string.clone()),
+            manual_run: false,
+            software,
+        }
+    }
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct VersionInfo {
+    pub name: String,
+    pub version: String,
+}

crates/xtask/src/bench/meili_process.rs

@@ -0,0 +1,112 @@
+use std::collections::BTreeMap;
+
+use anyhow::{bail, Context as _};
+
+use super::assets::Asset;
+use super::client::Client;
+use super::workload::Workload;
+
+pub async fn kill(mut meilisearch: tokio::process::Child) {
+    if let Err(error) = meilisearch.kill().await {
+        tracing::warn!(
+            error = &error as &dyn std::error::Error,
+            "while terminating Meilisearch server"
+        )
+    }
+}
+
+#[tracing::instrument]
+pub async fn build() -> anyhow::Result<()> {
+    let mut command = tokio::process::Command::new("cargo");
+    command.arg("build").arg("--release").arg("-p").arg("meilisearch");
+
+    command.kill_on_drop(true);
+
+    let mut builder = command.spawn().context("error building Meilisearch")?;
+
+    if !builder.wait().await.context("could not build Meilisearch")?.success() {
+        bail!("failed building Meilisearch")
+    }
+
+    Ok(())
+}
+
+#[tracing::instrument(skip(client, master_key, workload), fields(workload = workload.name))]
+pub async fn start(
+    client: &Client,
+    master_key: Option<&str>,
+    workload: &Workload,
+    asset_folder: &str,
+) -> anyhow::Result<tokio::process::Child> {
+    let mut command = tokio::process::Command::new("cargo");
+    command
+        .arg("run")
+        .arg("--release")
+        .arg("-p")
+        .arg("meilisearch")
+        .arg("--bin")
+        .arg("meilisearch")
+        .arg("--");
+
+    command.arg("--db-path").arg("./_xtask_benchmark.ms");
+    if let Some(master_key) = master_key {
+        command.arg("--master-key").arg(master_key);
+    }
+    command.arg("--experimental-enable-logs-route");
+
+    for extra_arg in workload.extra_cli_args.iter() {
+        command.arg(extra_arg);
+    }
+
+    command.kill_on_drop(true);
+
+    let mut meilisearch = command.spawn().context("Error starting Meilisearch")?;
+
+    wait_for_health(client, &mut meilisearch, &workload.assets, asset_folder).await?;
+
+    Ok(meilisearch)
+}
+
+async fn wait_for_health(
+    client: &Client,
+    meilisearch: &mut tokio::process::Child,
+    assets: &BTreeMap<String, Asset>,
+    asset_folder: &str,
+) -> anyhow::Result<()> {
+    for i in 0..100 {
+        let res = super::command::run(client.clone(), health_command(), assets, asset_folder).await;
+        if res.is_ok() {
+            // check that this is actually the current Meilisearch instance that answered us
+            if let Some(exit_code) =
+                meilisearch.try_wait().context("cannot check Meilisearch server process status")?
+            {
+                tracing::error!("Got an health response from a different process");
+                bail!("Meilisearch server exited early with code {exit_code}");
+            }
+
+            return Ok(());
+        }
+        tokio::time::sleep(std::time::Duration::from_millis(500)).await;
+        // check whether the Meilisearch instance exited early (cut the wait)
+        if let Some(exit_code) =
+            meilisearch.try_wait().context("cannot check Meilisearch server process status")?
+        {
+            bail!("Meilisearch server exited early with code {exit_code}");
+        }
+        tracing::debug!(attempt = i, "Waiting for Meilisearch to go up");
+    }
+    bail!("meilisearch is not responding")
+}
+
+fn health_command() -> super::command::Command {
+    super::command::Command {
+        route: "/health".into(),
+        method: super::client::Method::Get,
+        body: Default::default(),
+        synchronous: super::command::SyncMode::WaitForResponse,
+    }
+}
+
+pub fn delete_db() {
+    let _ = std::fs::remove_dir_all("./_xtask_benchmark.ms");
+}

crates/xtask/src/bench/mod.rs

@@ -0,0 +1,243 @@
+mod assets;
+mod client;
+mod command;
+mod dashboard;
+mod env_info;
+mod meili_process;
+mod workload;
+
+use std::io::LineWriter;
+use std::path::PathBuf;
+
+use anyhow::Context;
+use clap::Parser;
+use tracing_subscriber::fmt::format::FmtSpan;
+use tracing_subscriber::layer::SubscriberExt;
+use tracing_subscriber::Layer;
+
+use self::client::Client;
+use self::workload::Workload;
+
+pub fn default_http_addr() -> String {
+    "127.0.0.1:7700".to_string()
+}
+pub fn default_report_folder() -> String {
+    "./bench/reports/".into()
+}
+
+pub fn default_asset_folder() -> String {
+    "./bench/assets/".into()
+}
+
+pub fn default_log_filter() -> String {
+    "info".into()
+}
+
+pub fn default_dashboard_url() -> String {
+    "http://localhost:9001".into()
+}
+
+/// Run benchmarks from a workload
+#[derive(Parser, Debug)]
+pub struct BenchDeriveArgs {
+    /// Filename of the workload file, pass multiple filenames
+    /// to run multiple workloads in the specified order.
+    ///
+    /// Each workload run will get its own report file.
+    #[arg(value_name = "WORKLOAD_FILE", last = false)]
+    workload_file: Vec<PathBuf>,
+
+    /// URL of the dashboard.
+    #[arg(long, default_value_t = default_dashboard_url())]
+    dashboard_url: String,
+
+    /// Don't actually send results to the dashboard
+    #[arg(long)]
+    no_dashboard: bool,
+
+    /// Directory to output reports.
+    #[arg(long, default_value_t = default_report_folder())]
+    report_folder: String,
+
+    /// Directory to store the remote assets.
+    #[arg(long, default_value_t = default_asset_folder())]
+    asset_folder: String,
+
+    /// Log directives
+    #[arg(short, long, default_value_t = default_log_filter())]
+    log_filter: String,
+
+    /// Benchmark dashboard API key
+    #[arg(long)]
+    api_key: Option<String>,
+
+    /// Meilisearch master keys
+    #[arg(long)]
+    master_key: Option<String>,
+
+    /// Authentication bearer for fetching assets
+    #[arg(long)]
+    assets_key: Option<String>,
+
+    /// Reason for the benchmark invocation
+    #[arg(short, long)]
+    reason: Option<String>,
+}
+
+pub fn run(args: BenchDeriveArgs) -> anyhow::Result<()> {
+    // setup logs
+    let filter: tracing_subscriber::filter::Targets =
+        args.log_filter.parse().context("invalid --log-filter")?;
+
+    let subscriber = tracing_subscriber::registry().with(
+        tracing_subscriber::fmt::layer()
+            .with_writer(|| LineWriter::new(std::io::stderr()))
+            .with_span_events(FmtSpan::NEW | FmtSpan::CLOSE)
+            .with_filter(filter),
+    );
+    tracing::subscriber::set_global_default(subscriber).context("could not setup logging")?;
+
+    // fetch environment and build info
+    let env = env_info::Environment::generate_from_current_config();
+    let build_info = build_info::BuildInfo::from_build();
+
+    // tokio runtime
+    let rt = tokio::runtime::Builder::new_current_thread().enable_io().enable_time().build()?;
+    let _scope = rt.enter();
+
+    // setup clients
+    let assets_client =
+        Client::new(None, args.assets_key.as_deref(), Some(std::time::Duration::from_secs(3600)))?; // 1h
+
+    let dashboard_client = if args.no_dashboard {
+        dashboard::DashboardClient::new_dry()
+    } else {
+        dashboard::DashboardClient::new(args.dashboard_url.clone(), args.api_key.as_deref())?
+    };
+
+    // reporting uses its own client because keeping the stream open to wait for entries
+    // blocks any other requests
+    // Also we don't want any pesky timeout because we don't know how much time it will take to recover the full trace
+    let logs_client = Client::new(
+        Some("http://127.0.0.1:7700/logs/stream".into()),
+        args.master_key.as_deref(),
+        None,
+    )?;
+
+    let meili_client = Client::new(
+        Some("http://127.0.0.1:7700".into()),
+        args.master_key.as_deref(),
+        Some(std::time::Duration::from_secs(60)),
+    )?;
+
+    // enter runtime
+
+    rt.block_on(async {
+        dashboard_client.send_machine_info(&env).await?;
+
+        let commit_message = build_info.commit_msg.context("missing commit message")?.split('\n').next().unwrap();
+        let max_workloads = args.workload_file.len();
+        let reason: Option<&str> = args.reason.as_deref();
+        let invocation_uuid = dashboard_client.create_invocation(build_info.clone(), commit_message, env, max_workloads, reason).await?;
+
+        tracing::info!(workload_count = args.workload_file.len(), "handling workload files");
+
+        // main task
+        let workload_runs = tokio::spawn(
+            {
+                let dashboard_client = dashboard_client.clone();
+                let mut dashboard_urls = Vec::new();
+                async move {
+            for workload_file in args.workload_file.iter() {
+                let workload: Workload = serde_json::from_reader(
+                    std::fs::File::open(workload_file)
+                        .with_context(|| format!("error opening {}", workload_file.display()))?,
+                )
+                .with_context(|| format!("error parsing {} as JSON", workload_file.display()))?;
+
+                let workload_name = workload.name.clone();
+
+                workload::execute(
+                    &assets_client,
+                    &dashboard_client,
+                    &logs_client,
+                    &meili_client,
+                    invocation_uuid,
+                    args.master_key.as_deref(),
+                    workload,
+                    &args,
+                )
+                .await?;
+
+                let result_url = dashboard_client.result_url(&workload_name, &build_info, "main");
+
+                if !result_url.is_empty() {
+                dashboard_urls.push(result_url);
+                }
+
+                if let Some(branch) = build_info.branch {
+                    let result_url = dashboard_client.result_url(&workload_name, &build_info, branch);
+
+
+                    if !result_url.is_empty() {
+                    dashboard_urls.push(result_url);
+                    }
+                }
+            }
+            Ok::<_, anyhow::Error>(dashboard_urls)
+        }});
+
+        // handle ctrl-c
+        let abort_handle = workload_runs.abort_handle();
+        tokio::spawn({
+            let dashboard_client = dashboard_client.clone();
+            dashboard_client.cancel_on_ctrl_c(invocation_uuid, abort_handle)
+        });
+
+        // wait for the end of the main task, handle result
+        match workload_runs.await {
+            Ok(Ok(urls)) => {
+                tracing::info!("Success");
+                println!("☀️ Benchmark invocation completed, please find the results for your workloads below:");
+                for url in urls {
+                    println!("- {url}");
+                }
+                Ok::<(), anyhow::Error>(())
+            }
+            Ok(Err(error)) => {
+                tracing::error!(%invocation_uuid, error = %error, "invocation failed, attempting to report the failure to dashboard");
+                dashboard_client.mark_as_failed(invocation_uuid, Some(error.to_string())).await;
+                println!("☔️ Benchmark invocation failed...");
+                println!("{error}");
+                tracing::warn!(%invocation_uuid, "invocation marked as failed following error");
+                Err(error)
+            },
+            Err(join_error) => {
+                match join_error.try_into_panic() {
+                    Ok(panic) => {
+                        tracing::error!("invocation panicked, attempting to report the failure to dashboard");
+                        dashboard_client.mark_as_failed( invocation_uuid, Some("Panicked".into())).await;
+                        println!("‼️ Benchmark invocation panicked 😱");
+                        let msg = match panic.downcast_ref::<&'static str>() {
+                            Some(s) => *s,
+                            None => match panic.downcast_ref::<String>() {
+                                Some(s) => &s[..],
+                                None => "Box<dyn Any>",
+                            },
+                        };
+                        println!("panicked at {msg}");
+                        std::panic::resume_unwind(panic)
+                    }
+                    Err(_) => {
+                        tracing::warn!("task was canceled");
+                        println!("🚫 Benchmark invocation was canceled");
+                        Ok(())
+                    }
+                }
+            },
+        }
+
+    })?;
+
+    Ok(())
+}

crates/xtask/src/bench/workload.rs

@@ -0,0 +1,279 @@
+use std::collections::BTreeMap;
+use std::fs::File;
+use std::io::{Seek as _, Write as _};
+
+use anyhow::{bail, Context as _};
+use futures_util::TryStreamExt as _;
+use serde::Deserialize;
+use serde_json::json;
+use tokio::task::JoinHandle;
+use uuid::Uuid;
+
+use super::assets::Asset;
+use super::client::Client;
+use super::command::SyncMode;
+use super::dashboard::DashboardClient;
+use super::BenchDeriveArgs;
+use crate::bench::{assets, meili_process};
+
+#[derive(Deserialize)]
+pub struct Workload {
+    pub name: String,
+    pub run_count: u16,
+    pub extra_cli_args: Vec<String>,
+    pub assets: BTreeMap<String, Asset>,
+    #[serde(default)]
+    pub target: String,
+    #[serde(default)]
+    pub precommands: Vec<super::command::Command>,
+    pub commands: Vec<super::command::Command>,
+}
+
+async fn run_commands(
+    dashboard_client: &DashboardClient,
+    logs_client: &Client,
+    meili_client: &Client,
+    workload_uuid: Uuid,
+    workload: &Workload,
+    args: &BenchDeriveArgs,
+    run_number: u16,
+) -> anyhow::Result<JoinHandle<anyhow::Result<File>>> {
+    let report_folder = &args.report_folder;
+    let workload_name = &workload.name;
+
+    for batch in workload
+        .precommands
+        .as_slice()
+        .split_inclusive(|command| !matches!(command.synchronous, SyncMode::DontWait))
+    {
+        super::command::run_batch(meili_client, batch, &workload.assets, &args.asset_folder)
+            .await?;
+    }
+
+    std::fs::create_dir_all(report_folder)
+        .with_context(|| format!("could not create report directory at {report_folder}"))?;
+
+    let trace_filename = format!("{report_folder}/{workload_name}-{run_number}-trace.json");
+    let report_filename = format!("{report_folder}/{workload_name}-{run_number}-report.json");
+
+    let report_handle = start_report(logs_client, trace_filename, &workload.target).await?;
+
+    for batch in workload
+        .commands
+        .as_slice()
+        .split_inclusive(|command| !matches!(command.synchronous, SyncMode::DontWait))
+    {
+        super::command::run_batch(meili_client, batch, &workload.assets, &args.asset_folder)
+            .await?;
+    }
+
+    let processor =
+        stop_report(dashboard_client, logs_client, workload_uuid, report_filename, report_handle)
+            .await?;
+
+    Ok(processor)
+}
+
+#[allow(clippy::too_many_arguments)] // not best code quality, but this is a benchmark runner
+#[tracing::instrument(skip(assets_client, dashboard_client, logs_client, meili_client, workload, master_key, args), fields(workload = workload.name))]
+pub async fn execute(
+    assets_client: &Client,
+    dashboard_client: &DashboardClient,
+    logs_client: &Client,
+    meili_client: &Client,
+    invocation_uuid: Uuid,
+    master_key: Option<&str>,
+    workload: Workload,
+    args: &BenchDeriveArgs,
+) -> anyhow::Result<()> {
+    assets::fetch_assets(assets_client, &workload.assets, &args.asset_folder).await?;
+
+    let workload_uuid = dashboard_client.create_workload(invocation_uuid, &workload).await?;
+
+    let mut tasks = Vec::new();
+
+    for i in 0..workload.run_count {
+        tasks.push(
+            execute_run(
+                dashboard_client,
+                logs_client,
+                meili_client,
+                workload_uuid,
+                master_key,
+                &workload,
+                args,
+                i,
+            )
+            .await?,
+        );
+    }
+
+    let mut reports = Vec::with_capacity(workload.run_count as usize);
+
+    for task in tasks {
+        reports.push(
+            task.await
+                .context("task panicked while processing report")?
+                .context("task failed while processing report")?,
+        );
+    }
+
+    tracing::info!(workload = workload.name, "Successful workload");
+
+    Ok(())
+}
+
+#[allow(clippy::too_many_arguments)] // not best code quality, but this is a benchmark runner
+#[tracing::instrument(skip(dashboard_client, logs_client, meili_client, workload, master_key, args), fields(workload = %workload.name))]
+async fn execute_run(
+    dashboard_client: &DashboardClient,
+    logs_client: &Client,
+    meili_client: &Client,
+    workload_uuid: Uuid,
+    master_key: Option<&str>,
+    workload: &Workload,
+    args: &BenchDeriveArgs,
+    run_number: u16,
+) -> anyhow::Result<tokio::task::JoinHandle<anyhow::Result<std::fs::File>>> {
+    meili_process::delete_db();
+
+    meili_process::build().await?;
+    let meilisearch =
+        meili_process::start(meili_client, master_key, workload, &args.asset_folder).await?;
+
+    let processor = run_commands(
+        dashboard_client,
+        logs_client,
+        meili_client,
+        workload_uuid,
+        workload,
+        args,
+        run_number,
+    )
+    .await?;
+
+    meili_process::kill(meilisearch).await;
+
+    tracing::info!(run_number, "Successful run");
+
+    Ok(processor)
+}
+
+async fn start_report(
+    logs_client: &Client,
+    filename: String,
+    target: &str,
+) -> anyhow::Result<tokio::task::JoinHandle<anyhow::Result<std::fs::File>>> {
+    const DEFAULT_TARGET: &str = "indexing::=trace";
+    let target = if target.is_empty() { DEFAULT_TARGET } else { target };
+
+    let report_file = std::fs::File::options()
+        .create(true)
+        .truncate(true)
+        .write(true)
+        .read(true)
+        .open(&filename)
+        .with_context(|| format!("could not create file at {filename}"))?;
+    let mut report_file = std::io::BufWriter::new(report_file);
+
+    let response = logs_client
+        .post("")
+        .json(&json!({
+            "mode": "profile",
+            "target": target,
+        }))
+        .send()
+        .await
+        .context("failed to start report")?;
+
+    let code = response.status();
+    if code.is_client_error() {
+        tracing::error!(%code, "request error when trying to start report");
+        let response: serde_json::Value = response
+            .json()
+            .await
+            .context("could not deserialize response as JSON")
+            .context("response error when trying to start report")?;
+        bail!(
+            "request error when trying to start report: server responded with error code {code} and '{response}'"
+        )
+    } else if code.is_server_error() {
+        tracing::error!(%code, "server error when trying to start report");
+        let response: serde_json::Value = response
+            .json()
+            .await
+            .context("could not deserialize response as JSON")
+            .context("response error trying to start report")?;
+        bail!("server error when trying to start report: server responded with error code {code} and '{response}'")
+    }
+
+    Ok(tokio::task::spawn(async move {
+        let mut stream = response.bytes_stream();
+        while let Some(bytes) = stream.try_next().await.context("while waiting for report")? {
+            report_file
+                .write_all(&bytes)
+                .with_context(|| format!("while writing report to {filename}"))?;
+        }
+        report_file.into_inner().with_context(|| format!("while writing report to {filename}"))
+    }))
+}
+
+async fn stop_report(
+    dashboard_client: &DashboardClient,
+    logs_client: &Client,
+    workload_uuid: Uuid,
+    filename: String,
+    report_handle: tokio::task::JoinHandle<anyhow::Result<std::fs::File>>,
+) -> anyhow::Result<tokio::task::JoinHandle<anyhow::Result<std::fs::File>>> {
+    let response = logs_client.delete("").send().await.context("while stopping report")?;
+    if !response.status().is_success() {
+        bail!("received HTTP {} while stopping report", response.status())
+    }
+
+    let mut file = tokio::time::timeout(std::time::Duration::from_secs(1000), report_handle)
+        .await
+        .context("while waiting for the end of the report")?
+        .context("report writing task panicked")?
+        .context("while writing report")?;
+
+    file.rewind().context("while rewinding report file")?;
+
+    let process_handle = tokio::task::spawn({
+        let dashboard_client = dashboard_client.clone();
+        async move {
+            let span = tracing::info_span!("processing trace to report", filename);
+            let _guard = span.enter();
+            let report = tracing_trace::processor::span_stats::to_call_stats(
+                tracing_trace::TraceReader::new(std::io::BufReader::new(file)),
+            )
+            .context("could not convert trace to report")?;
+            let context = || format!("writing report to {filename}");
+
+            dashboard_client.create_run(workload_uuid, &report).await?;
+
+            let mut output_file = std::io::BufWriter::new(
+                std::fs::File::options()
+                    .create(true)
+                    .truncate(true)
+                    .write(true)
+                    .read(true)
+                    .open(&filename)
+                    .with_context(context)?,
+            );
+
+            for (key, value) in report {
+                serde_json::to_writer(&mut output_file, &json!({key: value}))
+                    .context("serializing span stat")?;
+                writeln!(&mut output_file).with_context(context)?;
+            }
+            output_file.flush().with_context(context)?;
+            let mut output_file = output_file.into_inner().with_context(context)?;
+
+            output_file.rewind().context("could not rewind output_file").with_context(context)?;
+
+            Ok(output_file)
+        }
+    });
+
+    Ok(process_handle)
+}

crates/xtask/src/lib.rs

@@ -0,0 +1 @@
+pub mod bench;

crates/xtask/src/main.rs

@@ -0,0 +1,45 @@
+use std::collections::HashSet;
+
+use clap::Parser;
+use xtask::bench::BenchDeriveArgs;
+
+/// List features available in the workspace
+#[derive(Parser, Debug)]
+struct ListFeaturesDeriveArgs {
+    /// Feature to exclude from the list. Repeat the argument to exclude multiple features
+    #[arg(short, long)]
+    exclude_feature: Vec<String>,
+}
+
+/// Utilitary commands
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about)]
+#[command(name = "cargo xtask")]
+#[command(bin_name = "cargo xtask")]
+enum Command {
+    ListFeatures(ListFeaturesDeriveArgs),
+    Bench(BenchDeriveArgs),
+}
+
+fn main() -> anyhow::Result<()> {
+    let args = Command::parse();
+    match args {
+        Command::ListFeatures(args) => list_features(args),
+        Command::Bench(args) => xtask::bench::run(args)?,
+    }
+    Ok(())
+}
+
+fn list_features(args: ListFeaturesDeriveArgs) {
+    let exclude_features: HashSet<_> = args.exclude_feature.into_iter().collect();
+    let metadata = cargo_metadata::MetadataCommand::new().no_deps().exec().unwrap();
+    let features: Vec<String> = metadata
+        .packages
+        .iter()
+        .flat_map(|package| package.features.keys())
+        .filter(|feature| !exclude_features.contains(feature.as_str()))
+        .map(|s| s.to_owned())
+        .collect();
+    let features = features.join(" ");
+    println!("{features}")
+}