build: first implementation

wrap around dpkg-buildpackage

src/build.rs

@@ -0,0 +1,26 @@
+use std::error::Error;
+use std::path::Path;
+use std::process::Command;
+
+pub fn build_source_package(cwd: Option<&Path>) -> Result<(), Box<dyn Error>> {
+    let cwd = cwd.unwrap_or_else(|| Path::new("."));
+
+    let status = Command::new("dpkg-buildpackage")
+        .current_dir(cwd)
+        .args(["-S", "-I", "-i", "-d"])
+        .status()?;
+
+    if !status.success() {
+        return Err(format!("dpkg-buildpackage failed with status: {}", status).into());
+    }
+
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    // We are not testing the build part, as for now this is just a wrapper
+    // around dpkg-buildpackage.
+}