diff --git a/scratch/swh-check-contents.py b/scratch/swh-check-contents.py
new file mode 100755
index 0000000..d404877
--- /dev/null
+++ b/scratch/swh-check-contents.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env python3
+
+import os
+import subprocess
+
+from swh.loader.dir.git import utils
+
+
+BATCH_SIZE=10000
+
+
+config = {
+    'dir_path': '/home/tony/work/inria/repo/linux-tryouts',
+
+    'storage_class': 'remote_storage',
+    'storage_args': ['http://localhost:5000/'],
+}
+
+
+if config['storage_class'] == 'remote_storage':
+    from swh.storage.api.client import RemoteStorage as Storage
+else:
+    from swh.storage import Storage
+
+
+storage = Storage(*config['storage_args'])
+
+
+def list_files_from(rootpath):
+    """Git ls tree from rootpath's latest revision's tree.
+
+    Yields:
+        Tuple of (perms, type, hex sha1, name)
+
+    """
+    with subprocess.Popen(
+            ['find', '.', '-type', 'f'],
+            stdout=subprocess.PIPE,
+            cwd=rootpath) as proc:
+        for filepath in proc.stdout:
+            yield os.path.join(rootpath, filepath.strip().decode('utf-8'))
+
+
+def hashfile(filepath):
+    """Hash a file according to what expects storage's api.
+
+    """
+    hashes = utils.hashfile(filepath)
+    hashes.update({'length': os.path.getsize(filepath)})
+    return hashes
+
+
+def check_missing_content_from_file(rootpath):
+    print('Folder to check: %s' % rootpath)
+    # List of contents to check in storage
+    contents_batch = []
+    # map of content index by sha1, value is their actual path
+    contents_map = {}
+    # full contents missing is a list of files not in storage
+    content_missings = []
+    # batch of contents to check
+    count_batch_contents = 0
+    # total number of checked contents
+    count_checked_contents = 0
+    # nb files read
+    nb_files = 0
+
+    for filepath in list_files_from(rootpath):
+        nb_files += 1
+        content_hashes = hashfile(filepath)
+        contents_map.update({content_hashes['sha1']: filepath})
+        contents_batch.append(content_hashes)
+        count_batch_contents += 1
+        if count_batch_contents < BATCH_SIZE:  # accumulate content to check on storage
+            continue
+
+        print('Checks %s contents' % len(contents_batch))
+        for content_missing in storage.content_missing(contents_batch):
+            content_missings.append(contents_map[content_missing['sha1']])
+        count_checked_contents += count_batch_contents
+
+        # reinitialize list
+        contents_batch = []
+        count_batch_contents = 0
+
+    if contents_batch is not []:
+        contents_batch_len = len(contents_batch)
+        print('Checks %s contents' % contents_batch_len)
+        for content_missing in storage.content_missing(contents_batch):
+            content_missings.append(contents_map[content_missing['sha1']])
+        count_checked_contents += contents_batch_len
+
+    print('Number of contents checked: %s' % count_checked_contents)
+    print('Number of files: %s' % nb_files)
+    print('Stats on missing contents -')
+    if len(content_missings) > 0:
+        print('Missing files: ')
+        for file_missing in content_missings:
+            print('- %s', file_missing)
+    else:
+        print('Nothing missing!')
+
+check_missing_content_from_file(config['dir_path'])