Find the list of missing control files

src/main.rs

@@ -1,9 +1,11 @@
 use std::env;
+use std::collections::HashSet;
+use std::path::Path;
 
 use rusoto_core::Region;
 use rusoto_credential::StaticProvider;
 use rusoto_core::request::HttpClient;
-use rusoto_s3::ListObjectsV2Request;
+use rusoto_s3::ListObjectsRequest;
 use rusoto_s3::S3;
 use rusoto_s3::S3Client;
 
@@ -29,16 +31,40 @@ fn main() {
         region
     );
 
-    let list_objects_request = ListObjectsV2Request {
-        bucket: bucket.to_owned(),
-        ..Default::default()
-    };
+    let mut truncated = Some(true);
+    let mut start_at = None;
+    let mut files_dirs: HashSet<String> = HashSet::new();
+    let mut directory_files: HashSet<String> = HashSet::new();
+
+    while truncated.unwrap_or(false) {
+        let list_objects_request = ListObjectsRequest {
+            bucket: bucket.to_owned(),
+            marker: start_at,
+            ..Default::default()
+        };
+        println!("Request: {:?}", list_objects_request);
+
+        let result = client
+            .list_objects(list_objects_request)
+            .sync()
+            .expect("Can't list contents of buckets");
+        truncated = result.is_truncated;
+        start_at = result.next_marker;
+
+        result.contents
+            .expect("Didn't get any objects")
+            .iter()
+            .for_each(|item| { 
+                let filename = item.key.as_ref().unwrap();
+                if filename.ends_with("/") {
+                    files_dirs.insert(filename.clone());
+                } else {
+                    directory_files.insert(Path::new(filename).parent().unwrap().to_str().unwrap().to_string() + "/");
+                }
+            });
+    }
 
-    let _result = client
-        .list_objects_v2(list_objects_request)
-        .sync()
-        .expect("Can't list contents of buckets")
-        .contents.unwrap()
-        .iter()
-        .for_each(|item| { println!("{}", item.key.as_ref().unwrap()) });
+    println!("Directories with files:\n{:#?}", directory_files);
+    println!("Directories with controllers:\n{:#?}", files_dirs);
+    println!("Difference:\n{:#?}", directory_files.difference(&files_dirs));
 }