1 files changed, 25 insertions, 0 deletions
diff --git a/src/summain.rs b/src/summain.rs
new file mode 100644
index 0000000..ce9cf0f
--- /dev/null
+++ b/src/summain.rs
@@ -0,0 +1,25 @@
+use std::path::Path;
+use std::process::Command;
+
+#[derive(Debug, thiserror::Error)]
+pub enum SummainError {
+    #[error("failed to run summain: {0}")]
+    Run(std::io::Error),
+}
+
+pub fn summain(root: &Path) -> Result<String, SummainError> {
+    let output = Command::new("summain")
+        .arg(".")
+        .current_dir(root)
+        .output()
+        .map_err(SummainError::Run)?;
+    if output.status.code() != Some(0) {
+        eprintln!("{}", String::from_utf8_lossy(&output.stdout));
+        eprintln!("{}", String::from_utf8_lossy(&output.stderr));
+        std::process::exit(1);
+    }
+
+    Ok(String::from_utf8_lossy(&output.stdout)
+        .to_owned()
+        .to_string())
+}