deb: consider package directories with version

src/deb/local.rs

@@ -80,10 +80,16 @@ pub fn build(
         return Err("Could not install essential packages for the build".into());
     }
 
+    // Find the actual package directory
+    let package_dir = crate::deb::find_package_directory(Path::new(build_root), package, version)?;
+    let package_dir_str = package_dir
+        .to_str()
+        .ok_or("Invalid package directory path")?;
+
     // Install build dependencies
     log::debug!("Installing build dependencies...");
     let mut cmd = ctx.command("apt-get");
-    cmd.current_dir(format!("{build_root}/{package}"))
+    cmd.current_dir(package_dir_str)
         .envs(env.clone())
         .arg("-y")
         .arg("build-dep");
@@ -102,7 +108,7 @@ pub fn build(
     log::debug!("Building (debian/rules build) package...");
     let status = ctx
         .command("debian/rules")
-        .current_dir(format!("{build_root}/{package}"))
+        .current_dir(package_dir_str)
         .envs(env.clone())
         .arg("build")
         .status()?;
@@ -113,7 +119,7 @@ pub fn build(
     // Run the 'binary' step to produce deb
     let status = ctx
         .command("fakeroot")
-        .current_dir(format!("{build_root}/{package}"))
+        .current_dir(package_dir_str)
         .envs(env.clone())
         .arg("debian/rules")
         .arg("binary")

src/deb/mod.rs

@@ -85,6 +85,45 @@ pub fn build_binary_package(
     Ok(())
 }
 
+/// Find the current package directory by trying both patterns:
+/// - package/package
+/// - package/package-origversion
+pub(crate) fn find_package_directory(
+    parent_dir: &Path,
+    package: &str,
+    version: &str,
+) -> Result<PathBuf, Box<dyn Error>> {
+    let ctx = context::current();
+
+    // Try package/package pattern first
+    let package_dir_pattern1 = parent_dir.join(package).join(package);
+    if ctx.exists(&package_dir_pattern1)? {
+        return Ok(package_dir_pattern1);
+    }
+
+    // Compute origversion from version: remove everything after first '-', after stripping epoch
+    let version_without_epoch = version.split_once(':').map(|(_, v)| v).unwrap_or(version);
+    let origversion = version_without_epoch
+        .split_once('-')
+        .map(|(v, _)| v)
+        .unwrap_or(version);
+
+    // Try package/package-origversion pattern
+    let package_dir_pattern2 = parent_dir
+        .join(package)
+        .join(format!("{}-{}", package, origversion));
+    if ctx.exists(&package_dir_pattern2)? {
+        return Ok(package_dir_pattern2);
+    }
+
+    Err(format!(
+        "Could not find package directory for {} in {}",
+        package,
+        parent_dir.display()
+    )
+    .into())
+}
+
 fn find_dsc_file(
     build_root: &str,
     package: &str,
@@ -135,7 +174,7 @@ mod tests {
         log::info!("Successfully pulled package {}", package);
 
         // Change directory to the package directory
-        let cwd = cwd.join(package).join(package);
+        let cwd = crate::deb::find_package_directory(cwd, package, &package_info.stanza.version).expect("Cannot find package directory");
         log::debug!("Package directory: {}", cwd.display());
 
         log::info!("Starting binary package build...");

src/deb/sbuild.rs

@@ -2,18 +2,26 @@
 /// Call 'sbuild' with the dsc file to build the package with unshare
 use crate::context;
 use std::error::Error;
+use std::path::Path;
 
 pub fn build(
     package: &str,
-    _version: &str,
+    version: &str,
     arch: &str,
     series: &str,
     build_root: &str,
     cross: bool,
 ) -> Result<(), Box<dyn Error>> {
     let ctx = context::current();
+
+    // Find the actual package directory
+    let package_dir = crate::deb::find_package_directory(Path::new(build_root), package, version)?;
+    let package_dir_str = package_dir
+        .to_str()
+        .ok_or("Invalid package directory path")?;
+
     let mut cmd = ctx.command("sbuild");
-    cmd.current_dir(format!("{}/{}", build_root, package));
+    cmd.current_dir(package_dir_str);
     cmd.arg("--chroot-mode=unshare");
     cmd.arg("--no-clean-source");