Disabled Progress should not start attached Live

CHANGELOG.md

@@ -35,7 +35,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed table style taking precedence over row style https://github.com/willmcgugan/rich/issues/1129
 - Fixed incorrect measurement of Text with new lines and whitespace https://github.com/willmcgugan/rich/issues/1133
 - Made type annotations consistent for various `total` keyword arguments in `rich.progress` and rich.`progress_bar`
-
+- Disabled Progress no longer displays itself when starting https://github.com/willmcgugan/rich/pull/1125
 
 ## [9.13.0] - 2021-03-06
 

CONTRIBUTORS.md

@@ -6,6 +6,7 @@ The following people have contributed to the development of Rich:
 
 - [Oleksis Fraga](https://github.com/oleksis)
 - [Finn Hughes](https://github.com/finnhughes)
+- [Josh Karpel](https://github.com/JoshKarpel)
 - [Hedy Li](https://github.com/hedythedev)
 - [Alexander Mancevice](https://github.com/amancevice)
 - [Will McGugan](https://github.com/willmcgugan)

rich/progress.py

@@ -634,7 +634,8 @@ def finished(self) -> bool:
 
     def start(self) -> None:
         """Start the progress display."""
-        self.live.start(refresh=True)
+        if not self.disable:
+            self.live.start(refresh=True)
 
     def stop(self) -> None:
         """Stop the progress display."""

tests/test_progress.py

@@ -434,6 +434,44 @@ def get_time() -> float:
     )
 
 
+def test_live_is_started_if_progress_is_enabled() -> None:
+    progress = Progress(auto_refresh=False, disable=False)
+
+    with progress:
+        assert progress.live._started
+
+
+def test_live_is_not_started_if_progress_is_disabled() -> None:
+    progress = Progress(auto_refresh=False, disable=True)
+
+    with progress:
+        assert not progress.live._started
+
+
+def test_no_output_if_progress_is_disabled() -> None:
+    console = Console(
+        file=io.StringIO(),
+        force_terminal=True,
+        width=60,
+        color_system="truecolor",
+        legacy_windows=False,
+        _environ={},
+    )
+    progress = Progress(
+        console=console,
+        disable=True,
+    )
+    test = ["foo", "bar", "baz"]
+    expected_values = iter(test)
+    with progress:
+        for value in progress.track(test, description="test"):
+            assert value == next(expected_values)
+    result = console.file.getvalue()
+    print(repr(result))
+    expected = ""
+    assert result == expected
+
+
 if __name__ == "__main__":
     _render = render_progress()
     print(_render)