Merge #261

261: Replace shell scripts with integration test r=therealprof a=jonas-schievink

* Removes the Clippy check from CI (I don't think we should fail CI when Clippy finds something, it seems better to use the GitHub Actions plugin)
* Tests all targets (thumbv8m.base was missing)
* Bumps MSRV to 1.35.0 (to get the thumbv8m.base libcore)

Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/xtask/tests/ci.rs b/xtask/tests/ci.rs
new file mode 100644
index 0000000..48356e4
--- /dev/null
+++ b/xtask/tests/ci.rs
@@ -0,0 +1,57 @@
+use std::process::Command;
+use std::{env, str};
+use xtask::{check_blobs, install_targets};
+
+static TARGETS: &[&str] = &[
+    "thumbv6m-none-eabi",
+    "thumbv7m-none-eabi",
+    "thumbv7em-none-eabi",
+    "thumbv7em-none-eabihf",
+    "thumbv8m.base-none-eabi",
+    "thumbv8m.main-none-eabi",
+    "thumbv8m.main-none-eabihf",
+];
+
+fn build(target: &str, features: &[&str]) {
+    println!("building for {} {:?}", target, features);
+    let mut cargo = Command::new("cargo");
+    cargo.args(&["build", "--target", target]);
+    for feat in features {
+        cargo.args(&["--features", *feat]);
+    }
+
+    let status = cargo.status().unwrap();
+    assert!(status.success());
+}
+
+fn main() {
+    // Tests execute in the containing crate's root dir, `cd ..` so that we find `asm` etc.
+    env::set_current_dir("..").unwrap();
+
+    install_targets(&mut TARGETS.iter().cloned(), None);
+
+    // Check that the ASM blobs are up-to-date.
+    check_blobs();
+
+    let output = Command::new("rustc").arg("-V").output().unwrap();
+    let is_nightly = str::from_utf8(&output.stdout).unwrap().contains("nightly");
+
+    // Build `cortex-m` for each supported target.
+    for target in TARGETS {
+        build(*target, &[]);
+
+        if is_nightly {
+            // This may fail when nightly breaks. That's fine, the CI job isn't essential.
+            build(*target, &["inline-asm"]);
+        }
+
+        if target.starts_with("thumbv7em") {
+            // These can target Cortex-M7s, which have an errata workaround.
+            build(*target, &["cm7-r0p1"]);
+
+            if is_nightly {
+                build(*target, &["inline-asm", "cm7-r0p1"]);
+            }
+        }
+    }
+}