cli: Add --only-old argument to all commands

By default, all commands show all annotations, branches, etc.,
including those that are recent. When exporting to a CSV format, it's
useful to filter out the recent items and only display old ones.

src/check_oldies/annotations.py

@@ -22,6 +22,7 @@ class Config:
     max_age: int = 180
 
     output_format: output.OutputFormat = output.OutputFormat.TEXT
+    only_old: bool = False
     colorize_errors: bool = True
 
     annotations: typing.Sequence = ("todo", "fixme", )  # no-check-fixmes

src/check_oldies/branches.py

@@ -43,6 +43,7 @@ class Config:
 
     output_format: output.OutputFormat = output.OutputFormat.TEXT
     colorize_errors: bool = True
+    only_old: bool = False
 
     calm_branches: typing.Sequence = ("gh-pages", "master", "main", "prod", "maint(enance)?/.*")
     ignore_branches_without_pull_request: bool = False

src/check_oldies/check_branches.py

@@ -43,6 +43,12 @@ def get_parser():
             f"Defaults to {check_oldies.branches.Config.max_age}."
         ),
     )
+    parser.add_argument(
+        "--only-old",
+        action="store_true",
+        default=False,
+        help="Show only old branches. By default, the command shows all branches."
+    )
     parser.add_argument(
         "--no-color",
         action="store_false",
@@ -62,6 +68,8 @@ def main():
         sys.exit(f'Invalid path: "{config.path}" is not a Git repository.')
 
     branches = check_oldies.branches.get_branches(config)
+    if config.only_old:
+        branches = [branch for branch in branches if branch.is_old]
     branches.sort(key=lambda branch: (branch.author, -branch.age, branch.name))
     has_old_branches = any(branch for branch in branches if branch.is_old)
 

src/check_oldies/check_fixmes.py

@@ -43,6 +43,12 @@ def get_parser():
             f"Defaults to {check_oldies.annotations.Config.max_age}."
         ),
     )
+    parser.add_argument(
+        "--only-old",
+        action="store_true",
+        default=False,
+        help="Show only old annotations. By default, the command shows all annotations."
+    )
     parser.add_argument(
         "--no-color",
         action="store_false",
@@ -62,6 +68,8 @@ def main():
         sys.exit(f'Invalid path: "{config.path}" is not a Git repository.')
 
     annotations = check_oldies.annotations.get_annotations(config)
+    if config.only_old:
+        annotations = [a for a in annotations if a.is_old]
     annotations.sort(key=lambda f: (f.assignee, -f.age, f.filename, f.line_no))
     has_old_annotations = any(ann for ann in annotations if ann.is_old)