feat: add ability to actually publish

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/flux-releaser/src/services/archive.rs

@@ -1,7 +1,10 @@
 #[derive(Clone, Default)]
 pub struct Archive {}
 
-use std::{io::Cursor, path::Path};
+use std::{
+    io::{Bytes, Cursor},
+    path::Path,
+};
 
 use anyhow::Context;
 
@@ -45,6 +48,17 @@ impl Archive {
 
         Ok(buffer.into())
     }
+
+    pub async fn unpack_archive(&self, archive: &ArchiveFile, dest: &Path) -> anyhow::Result<()> {
+        tracing::trace!("unpacking archive: {}", dest.display());
+
+        let cursor = Cursor::new(archive.content.clone());
+        let mut arc = tar::Archive::new(cursor);
+
+        arc.unpack(dest)?;
+
+        Ok(())
+    }
 }
 
 pub struct ArchiveFile {