diff --git a/setup_main_tex_file.py b/setup_main_tex_file.py
index 57f4d12..f7b4c3e 100755
--- a/setup_main_tex_file.py
+++ b/setup_main_tex_file.py
@@ -68,16 +68,45 @@ def git_integration(func):
                 master_ref = repo.references['refs/heads/master']
                 commit = master_ref.peel()
                 repo.branches.local.create(branch_name, commit)
-
-            # état du dépôt, si il n’est pas propre, sortir
-            # checkout sur la branche master
-            # création d’une branche spécifique pour le document à partir de la branche master
-        # création des fichiers
         func(args)
-        if repo: # à transformer en decorateur éventuellement
-            print('add et commit')
-            # ajout tout le contenu hors presentations dans la branche master
-            # ajout de tout le contenu de presentations dans la branche spécifique
+        if repo:
+            repo_status = repo.status()
+            to_add_status = [pygit2.GIT_STATUS_WT_NEW,
+                             pygit2.GIT_STATUS_WT_MODIFIED]
+            branch_add_paths = [fp for fp in repo_status
+                    if fp.startswith(f'presentations/') and repo_status[fp] in to_add_status]
+            master_add_paths = [fp for fp in repo_status
+                    if (fp.startswith('content/') or fp.startswith('slides/')) and repo_status[fp] in to_add_status]
+
+            author = pygit2.Signature(repo.config['user.name'], repo.config['user.email'])
+            committer = author
+
+            index = repo.index
+            for fp in master_add_paths:
+                index.add(fp)
+            index.write()
+            tree = index.write_tree()
+            master_ref = repo.references['refs/heads/master']
+            parents = [master_ref.peel().hex]
+            repo.create_commit('refs/heads/master', 
+                    author,
+                    committer,
+                    'comment',
+                    tree,
+                    parents)
+
+            for fp in branch_add_paths:
+                index.add(fp)
+            index.write()
+            tree = index.write_tree()
+            branch_ref = repo.references[f'refs/heads/{branch_name}']
+            parents = [branch_ref.peel().hex]
+            repo.create_commit(f'refs/heads/{branch_name}', 
+                    author,
+                    committer,
+                    'comment',
+                    tree,
+                    parents)
     return inner
 
 def main():
@@ -105,7 +134,7 @@ def main():
         if args.directory:
             root = root + re.sub(r'[\w-]+/?', '../', args.directory)
         
-        name = 'master.tex'
+        name = 'diaporama.tex'
         
         title = args.title
         if not title: