exp: cross #2

src/deb/mod.rs

@@ -0,0 +1,70 @@
+mod cross;
+mod local;
+mod sbuild;
+
+use crate::context;
+use std::error::Error;
+use std::path::Path;
+
+pub fn build_binary_package(
+    arch: Option<&str>,
+    series: Option<&str>,
+    cwd: Option<&Path>,
+    cross: bool,
+) -> Result<(), Box<dyn Error>> {
+    let cwd = cwd.unwrap_or_else(|| Path::new("."));
+
+    // Parse changelog to get package name, version and series
+    let changelog_path = cwd.join("debian/changelog");
+    let (package, version, package_series) =
+        crate::changelog::parse_changelog_header(&changelog_path)?;
+    let series = if let Some(s) = series {
+        s
+    } else {
+        &package_series
+    };
+    let current_arch = crate::get_current_arch();
+    let arch = arch.unwrap_or(&current_arch);
+
+    // Specific case: native cross-compilation, we don't allow that
+    // instead this wraps to an automatic unshare chroot
+    // using an ephemeral context
+    if cross {
+        cross::setup_native_context(series)?;
+    }
+
+    // Prepare Environment
+    let ctx = context::current();
+    let build_root = ctx.create_temp_dir()?;
+
+    // Ensure availability of all needed files for the build
+    let parent_dir = cwd.parent().ok_or("Cannot find parent directory")?;
+    ctx.ensure_available(parent_dir, &build_root)?;
+    let parent_dir_name = parent_dir
+        .file_name()
+        .ok_or("Cannot find parent directory name")?;
+    let build_root = format!("{}/{}", build_root, parent_dir_name.to_str().unwrap());
+
+    // Run sbuild
+    if cross {
+        local::build(cwd, &package, &version, arch, series, &build_root, cross)?;
+    } else {
+        sbuild::build(cwd, &package, &version, arch, series, &build_root, cross)?;
+    }
+
+    // Retrieve artifacts
+    // Always retrieve to the directory containing the .dsc file
+    println!("Retrieving artifacts to {}...", parent_dir.display());
+
+    // Only retrieve .deb files
+    let remote_files = ctx.list_files(Path::new(&build_root))?;
+    for remote_file in remote_files {
+        if remote_file.extension().is_some_and(|ext| ext == "deb") {
+            let file_name = remote_file.file_name().ok_or("Invalid remote filename")?;
+            let local_dest = parent_dir.join(file_name);
+            ctx.retrieve_path(&remote_file, &local_dest)?;
+        }
+    }
+
+    Ok(())
+}