Add an errors-only output format

Author: tfeldmann

organize/cli.py

@@ -30,7 +30,8 @@
 Options:
   <config>                        A config name or path to a config file
   -W --working-dir <dir>          The working directory
-  -F --format (DEFAULT|JSONL)     The output format [Default: DEFAULT]
+  -F --format (default|errorsonly|JSONL)
+                                  The output format [Default: default]
   -T --tags <tags>                Tags to run (eg. "initial,release")
   -S --skip-tags <tags>           Tags to skip
   -h --help                       Show this help page.
@@ -72,7 +73,7 @@
 
 Tags = Set[str]
 OutputFormat = Annotated[
-    Literal["default", "jsonl"], BeforeValidator(lambda v: v.lower())
+    Literal["default", "jsonl", "errorsonly"], BeforeValidator(lambda v: v.lower())
 ]
 
 console = Console()
@@ -84,6 +85,16 @@ def _open_uri(uri: str):
     webbrowser.open(uri)
 
 
+def _output_for_format(format: OutputFormat) -> Output:
+    if format == "default":
+        return Default()
+    elif format == "errorsonly":
+        return Default(errors_only=True)
+    elif format == "jsonl":
+        return JSONL()
+    raise ValueError(f"{format} is not a valid output format.")
+
+
 def execute(
     config: Optional[str],
     working_dir: Optional[Path],
@@ -92,12 +103,10 @@ def execute(
     skip_tags: Tags,
     simulate: bool,
 ) -> None:
-    output = JSONL() if format == "jsonl" else Default()
-    assert isinstance(output, Output)
     config_path = find_config(name_or_path=config)
     Config.from_path(config_path).execute(
         simulate=simulate,
-        output=output,
+        output=_output_for_format(format),
         tags=tags,
         skip_tags=skip_tags,
         working_dir=working_dir or Path("."),

organize/output/default.py

@@ -15,6 +15,8 @@
 from .output import Level
 
 if TYPE_CHECKING:
+    from typing import List
+
     from organize.resource import Resource
 
     from ._sender import SenderType
@@ -51,7 +53,7 @@ def set_error_msg(cls, msg: str) -> None:
 
 
 class Default:
-    def __init__(self, theme: Optional[Theme] = None):
+    def __init__(self, theme: Optional[Theme] = None, errors_only: bool = False):
         if theme is None:
             theme = Theme(
                 {
@@ -74,6 +76,10 @@ def __init__(self, theme: Optional[Theme] = None):
                     "summary.fail": "red",
                 }
             )
+        self.errors_only = errors_only
+        self.msg_queue: List[str] = []
+        self.det_resource = ChangeDetector()
+
         self.console = Console(theme=theme, highlight=False)
 
         self.status = Status("", console=self.console)
@@ -141,14 +147,25 @@ def msg(
         sender: SenderType,
         level: Level = "info",
     ) -> None:
-        self.show_resource(res)
         msg_pre = format_sender(sender=sender, standalone=res.path is None)
         if level == "info":
-            self.console.print(f"{msg_pre}{format_info(msg=msg)}")
-        elif level == "error":
-            self.console.print(f"{msg_pre}{format_error(msg=msg)}")
+            msg = f"{msg_pre}{format_info(msg=msg)}"
         elif level == "warn":
-            self.console.print(f"{msg_pre}{format_warn(msg=msg)}")
+            msg = f"{msg_pre}{format_warn(msg=msg)}"
+        elif level == "error":
+            msg = f"{msg_pre}{format_error(msg=msg)}"
+
+        if self.errors_only:
+            if self.det_resource.changed(res):
+                self.msg_queue.clear()
+            self.msg_queue.append(msg)
+            if level == "error":
+                self.show_resource(res)
+                for msg in self.msg_queue:
+                    self.console.print(msg)
+        else:
+            self.show_resource(res)
+            self.console.print(msg)
 
     def confirm(
         self,