fix: update

3 files changed, 326 insertions, 30 deletions

diff --git a/release/src/cargo.rs b/release/src/cargo.rs
new file mode 100644
index 000000000..1a4f79f20
--- /dev/null
+++ b/release/src/cargo.rs
@@ -0,0 +1,194 @@
+//! Tools for working with Cargo.
+
+use std::{
+    ffi::OsStr,
+    path::{Path, PathBuf},
+    process::{Command, Stdio},
+};
+
+use anyhow::{bail, Context as _, Result};
+use clap::ValueEnum as _;
+use serde::{Deserialize, Serialize};
+use toml_edit::{DocumentMut, Formatted, Item, Value};
+
+use crate::{windows_safe_path, Crate};
+
+#[derive(Clone, Debug, PartialEq)]
+pub enum CargoAction {
+    Build(PathBuf),
+    Run,
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct Artifact {
+    pub executable: PathBuf,
+}
+
+/// Execute cargo with the given arguments and from the specified directory.
+pub fn run(args: &[String], cwd: &Path) -> Result<()> {
+    run_with_env::<[(&str, &str); 0], _, _>(args, cwd, [], false)?;
+    Ok(())
+}
+
+/// Execute cargo with the given arguments and from the specified directory.
+pub fn run_with_env<I, K, V>(args: &[String], cwd: &Path, envs: I, capture: bool) -> Result<String>
+where
+    I: IntoIterator<Item = (K, V)> + core::fmt::Debug,
+    K: AsRef<OsStr>,
+    V: AsRef<OsStr>,
+{
+    if !cwd.is_dir() {
+        bail!("The `cwd` argument MUST be a directory");
+    }
+
+    // Make sure to not use a UNC as CWD!
+    // That would make `OUT_DIR` a UNC which will trigger things like the one fixed in https://github.com/dtolnay/rustversion/pull/51
+    // While it's fixed in `rustversion` it's not fixed for other crates we are
+    // using now or in future!
+    let cwd = windows_safe_path(cwd);
+
+    println!(
+        "Running `cargo {}` in {:?} - Environment {:?}",
+        args.join(" "),
+        cwd,
+        envs
+    );
+
+    let mut command = Command::new(get_cargo());
+
+    command
+        .args(args)
+        .current_dir(cwd)
+        .envs(envs)
+        .stdout(if capture { Stdio::piped() } else { Stdio::inherit() })
+        .stderr(if capture { Stdio::piped() } else { Stdio::inherit() });
+
+    if args.iter().any(|a| a.starts_with('+')) {
+        // Make sure the right cargo runs
+        command.env_remove("CARGO");
+    }
+
+    let output = command.stdin(Stdio::inherit()).output()?;
+
+    // Make sure that we return an appropriate exit code here, as Github Actions
+    // requires this in order to function correctly:
+    if output.status.success() {
+        Ok(String::from_utf8_lossy(&output.stdout).to_string())
+    } else {
+        bail!("Failed to execute cargo subcommand `cargo {}`", args.join(" "),)
+    }
+}
+
+fn get_cargo() -> String {
+    // On Windows when executed via `cargo run` (e.g. via the xtask alias) the
+    // `cargo` on the search path is NOT the cargo-wrapper but the `cargo` from the
+    // toolchain - that one doesn't understand `+toolchain`
+    #[cfg(target_os = "windows")]
+    let cargo = if let Ok(cargo) = std::env::var("CARGO_HOME") {
+        format!("{cargo}/bin/cargo")
+    } else {
+        String::from("cargo")
+    };
+
+    #[cfg(not(target_os = "windows"))]
+    let cargo = String::from("cargo");
+
+    cargo
+}
+
+#[derive(Debug, Default)]
+pub struct CargoArgsBuilder {
+    toolchain: Option<String>,
+    subcommand: String,
+    target: Option<String>,
+    features: Vec<String>,
+    args: Vec<String>,
+}
+
+impl CargoArgsBuilder {
+    #[must_use]
+    pub fn toolchain<S>(mut self, toolchain: S) -> Self
+    where
+        S: Into<String>,
+    {
+        self.toolchain = Some(toolchain.into());
+        self
+    }
+
+    #[must_use]
+    pub fn subcommand<S>(mut self, subcommand: S) -> Self
+    where
+        S: Into<String>,
+    {
+        self.subcommand = subcommand.into();
+        self
+    }
+
+    #[must_use]
+    pub fn target<S>(mut self, target: S) -> Self
+    where
+        S: Into<String>,
+    {
+        self.target = Some(target.into());
+        self
+    }
+
+    #[must_use]
+    pub fn features(mut self, features: &[String]) -> Self {
+        self.features = features.to_vec();
+        self
+    }
+
+    #[must_use]
+    pub fn arg<S>(mut self, arg: S) -> Self
+    where
+        S: Into<String>,
+    {
+        self.args.push(arg.into());
+        self
+    }
+
+    #[must_use]
+    pub fn args<S>(mut self, args: &[S]) -> Self
+    where
+        S: Clone + Into<String>,
+    {
+        for arg in args {
+            self.args.push(arg.clone().into());
+        }
+        self
+    }
+
+    pub fn add_arg<S>(&mut self, arg: S) -> &mut Self
+    where
+        S: Into<String>,
+    {
+        self.args.push(arg.into());
+        self
+    }
+
+    #[must_use]
+    pub fn build(&self) -> Vec<String> {
+        let mut args = vec![];
+
+        if let Some(ref toolchain) = self.toolchain {
+            args.push(format!("+{toolchain}"));
+        }
+
+        args.push(self.subcommand.clone());
+
+        if let Some(ref target) = self.target {
+            args.push(format!("--target={target}"));
+        }
+
+        if !self.features.is_empty() {
+            args.push(format!("--features={}", self.features.join(",")));
+        }
+
+        for arg in self.args.iter() {
+            args.push(arg.clone());
+        }
+
+        args
+    }
+}
diff --git a/release/src/main.rs b/release/src/main.rs
index 769611c78..0dbcc5d45 100644
--- a/release/src/main.rs
+++ b/release/src/main.rs
@@ -1,3 +1,4 @@
+use simple_logger::SimpleLogger;
 use std::collections::{BTreeMap, HashMap};
 use std::fs;
 use std::path::{Path, PathBuf};
@@ -11,6 +12,8 @@ use petgraph::{Directed, Direction};
 use toml_edit::{DocumentMut, Item, Value};
 use types::*;
 
+mod cargo;
+mod semver_check;
 mod types;
 
 /// Tool to traverse and operate on intra-repo Rust crate dependencies
@@ -70,7 +73,7 @@ fn load_release_config(repo: &Path) -> ReleaseConfig {
 }
 
 fn update_version(c: &mut Crate, new_version: &str) -> Result<()> {
-    let path = &c.path;
+    let path = c.path.join("Cargo.toml");
     c.version = new_version.to_string();
     let content = fs::read_to_string(&path)?;
     let mut doc: DocumentMut = content.parse()?;
@@ -84,7 +87,7 @@ fn update_version(c: &mut Crate, new_version: &str) -> Result<()> {
 }
 
 fn update_versions(to_update: &Crate, dep: &CrateId, new_version: &str) -> Result<()> {
-    let path = &to_update.path;
+    let path = to_update.path.join("Cargo.toml");
     let content = fs::read_to_string(&path)?;
     let mut doc: DocumentMut = content.parse()?;
     let mut changed = false;
@@ -117,15 +120,16 @@ fn update_versions(to_update: &Crate, dep: &CrateId, new_version: &str) -> Resul
     Ok(())
 }
 
-fn list_crates(path: &PathBuf) -> Result<BTreeMap<CrateId, Crate>> {
-    let d = std::fs::read_dir(path)?;
-    let release_config = load_release_config(path);
+fn list_crates(root: &PathBuf) -> Result<BTreeMap<CrateId, Crate>> {
+    let d = std::fs::read_dir(root)?;
+    let release_config = load_release_config(root);
     let mut crates = BTreeMap::new();
     for c in d {
         let entry = c?;
         let name = entry.file_name().to_str().unwrap().to_string();
         if entry.file_type()?.is_dir() && name.starts_with("embassy-") {
-            let entry = entry.path().join("Cargo.toml");
+            let path = root.join(entry.path());
+            let entry = path.join("Cargo.toml");
             if entry.exists() {
                 let content = fs::read_to_string(&entry)?;
                 let parsed: ParsedCrate = toml::from_str(&content)?;
@@ -138,7 +142,6 @@ fn list_crates(path: &PathBuf) -> Result<BTreeMap<CrateId, Crate>> {
                     }
                 }
 
-                let path = path.join(entry);
                 if let Some(config) = release_config.get(&id) {
                     crates.insert(
                         id.clone(),
@@ -191,6 +194,7 @@ fn build_graph(crates: &BTreeMap<CrateId, Crate>) -> (Graph<CrateId, ()>, HashMa
 }
 
 fn main() -> Result<()> {
+    SimpleLogger::new().init().unwrap();
     let args = Args::parse();
 
     let root = args.repo.canonicalize()?;
@@ -306,7 +310,7 @@ fn main() -> Result<()> {
                 let mut args: Vec<String> = vec![
                     "publish".to_string(),
                     "--manifest-path".to_string(),
-                    c.path.display().to_string(),
+                    c.path.join("Cargo.toml").display().to_string(),
                 ];
 
                 if let Some(features) = &c.config.features {
@@ -337,26 +341,9 @@ fn main() -> Result<()> {
 }
 
 fn check_semver(c: &Crate) -> Result<()> {
-    let mut args: Vec<String> = vec![
-        "semver-checks".to_string(),
-        "--manifest-path".to_string(),
-        c.path.display().to_string(),
-        "--default-features".to_string(),
-    ];
-    if let Some(features) = &c.config.features {
-        args.push("--features".into());
-        args.push(features.join(","));
-    }
-
-    let status = ProcessCommand::new("cargo").args(&args).output()?;
-
-    println!("{}", core::str::from_utf8(&status.stdout).unwrap());
-    eprintln!("{}", core::str::from_utf8(&status.stderr).unwrap());
-    if !status.status.success() {
-        return Err(anyhow!("semver check failed"));
-    } else {
-        Ok(())
-    }
+    let min_version = semver_check::minimum_update(c)?;
+    println!("Version should be bumped to {:?}", min_version);
+    Ok(())
 }
 
 fn update_changelog(repo: &Path, c: &Crate) -> Result<()> {
@@ -366,7 +353,7 @@ fn update_changelog(repo: &Path, c: &Crate) -> Result<()> {
         "--config".to_string(),
         repo.join("release").join("release.toml").display().to_string(),
         "--manifest-path".to_string(),
-        c.path.display().to_string(),
+        c.path.join("Cargo.toml").display().to_string(),
         "--execute".to_string(),
         "--no-confirm".to_string(),
     ];
@@ -386,7 +373,7 @@ fn publish_release(_repo: &Path, c: &Crate, push: bool) -> Result<()> {
     let mut args: Vec<String> = vec![
         "publish".to_string(),
         "--manifest-path".to_string(),
-        c.path.display().to_string(),
+        c.path.join("Cargo.toml").display().to_string(),
     ];
 
     if let Some(features) = &c.config.features {
@@ -415,3 +402,8 @@ fn publish_release(_repo: &Path, c: &Crate, push: bool) -> Result<()> {
         Ok(())
     }
 }
+
+/// Make the path "Windows"-safe
+pub fn windows_safe_path(path: &Path) -> PathBuf {
+    PathBuf::from(path.to_str().unwrap().to_string().replace("\\\\?\\", ""))
+}
diff --git a/release/src/semver_check.rs b/release/src/semver_check.rs
new file mode 100644
index 000000000..b43164334
--- /dev/null
+++ b/release/src/semver_check.rs
@@ -0,0 +1,110 @@
+use std::fs;
+use std::io::Write;
+use std::path::{Path, PathBuf};
+
+use cargo_semver_checks::{Check, GlobalConfig, ReleaseType, Rustdoc};
+
+use crate::cargo::CargoArgsBuilder;
+use crate::types::Crate;
+use crate::windows_safe_path;
+
+/// Return the minimum required bump for the next release.
+/// Even if nothing changed this will be [ReleaseType::Patch]
+pub fn minimum_update(krate: &Crate) -> Result<ReleaseType, anyhow::Error> {
+    println!("Crate = {:?}", krate);
+
+    let package_name = krate.name.clone();
+    let package_path = krate.path.clone();
+    let current_path = build_doc_json(krate)?;
+
+    let baseline = Rustdoc::from_registry_latest_crate_version();
+    let doc = Rustdoc::from_path(&current_path);
+    let mut semver_check = Check::new(doc);
+    semver_check.with_default_features();
+    semver_check.set_baseline(baseline);
+    semver_check.set_packages(vec![package_name]);
+    if let Some(features) = &krate.config.features {
+        let extra_current_features = features.clone();
+        let extra_baseline_features = features.clone();
+        semver_check.set_extra_features(extra_current_features, extra_baseline_features);
+    }
+    if let Some(target) = &krate.config.target {
+        semver_check.set_build_target(target.clone());
+    }
+    let mut cfg = GlobalConfig::new();
+    cfg.set_log_level(Some(log::Level::Trace));
+    let result = semver_check.check_release(&mut cfg)?;
+    log::info!("Result {:?}", result);
+
+    let mut min_required_update = ReleaseType::Patch;
+    for (_, report) in result.crate_reports() {
+        if let Some(required_bump) = report.required_bump() {
+            let required_is_stricter =
+                (min_required_update == ReleaseType::Patch) || (required_bump == ReleaseType::Major);
+            if required_is_stricter {
+                min_required_update = required_bump;
+            }
+        }
+    }
+
+    Ok(min_required_update)
+}
+
+pub(crate) fn build_doc_json(krate: &Crate) -> Result<PathBuf, anyhow::Error> {
+    let target_dir = std::env::var("CARGO_TARGET_DIR");
+
+    let target_path = if let Ok(target) = target_dir {
+        PathBuf::from(target)
+    } else {
+        PathBuf::from(&krate.path).join("target")
+    };
+
+    let current_path = target_path;
+    let current_path = if let Some(target) = &krate.config.target {
+        current_path.join(target.clone())
+    } else {
+        current_path
+    };
+    let current_path = current_path
+        .join("doc")
+        .join(format!("{}.json", krate.name.to_string().replace("-", "_")));
+
+    std::fs::remove_file(&current_path).ok();
+    let features = if let Some(features) = &krate.config.features {
+        features.clone()
+    } else {
+        vec![]
+    };
+
+    log::info!("Building doc json for {} with features: {:?}", krate.name, features);
+
+    let envs = vec![(
+        "RUSTDOCFLAGS",
+        "--cfg docsrs --cfg not_really_docsrs --cfg semver_checks",
+    )];
+
+    // always use `specific nightly` toolchain so we don't have to deal with potentially
+    // different versions of the doc-json
+    let cargo_builder = CargoArgsBuilder::default()
+        .toolchain("nightly-2025-06-29")
+        .subcommand("rustdoc")
+        .features(&features);
+    let cargo_builder = if let Some(target) = &krate.config.target {
+        cargo_builder.target(target.clone())
+    } else {
+        cargo_builder
+    };
+
+    let cargo_builder = cargo_builder
+        .arg("-Zunstable-options")
+        .arg("-Zhost-config")
+        .arg("-Ztarget-applies-to-host")
+        .arg("--lib")
+        .arg("--output-format=json")
+        .arg("-Zbuild-std=alloc,core")
+        .arg("--config=host.rustflags=[\"--cfg=instability_disable_unstable_docs\"]");
+    let cargo_args = cargo_builder.build();
+    log::debug!("{cargo_args:#?}");
+    crate::cargo::run_with_env(&cargo_args, &krate.path, envs, false)?;
+    Ok(current_path)
+}