feat: draft of the --empty parameter

Author: 12rambau

Diff for: commitizen/cli.py

@@ -209,6 +209,12 @@
                         "default": None,
                         "choices": version_types.VERSION_TYPES,
                     },
+                    {
+                        "name": ["--empty"],
+                        "default": False,
+                        "help": "bump tags without new commits",
+                        "action": "store_true",
+                    },
                 ],
             },
             {

Diff for: commitizen/commands/bump.py

@@ -121,6 +121,7 @@ def __call__(self):  # noqa: C901
         is_files_only: Optional[bool] = self.arguments["files_only"]
         is_local_version: Optional[bool] = self.arguments["local_version"]
         manual_version = self.arguments["manual_version"]
+        is_empty: Optional[bool] = self.arguments["empty"]
 
         if manual_version:
             if increment:
@@ -175,7 +176,7 @@ def __call__(self):  # noqa: C901
 
         # No commits, there is no need to create an empty tag.
         # Unless we previously had a prerelease.
-        if not commits and not current_version_instance.is_prerelease:
+        if not commits and not current_version_instance.is_prerelease and not is_empty:
             raise NoCommitsFoundError("[NO_COMMITS_FOUND]\n" "No new commits found.")
 
         if manual_version:
@@ -208,6 +209,10 @@ def __call__(self):  # noqa: C901
             if prerelease and current_version_instance.is_prerelease:
                 increment = None
 
+            # we create an empty PATCH increment for empty tag
+            if increment is None and is_empty:
+                increment = "PATCH"
+
             new_version = bump.generate_version(
                 current_version,
                 increment,