Fix publish --build prompt behavior in non-interactive mode

src/poetry/console/commands/publish.py

@@ -72,13 +72,21 @@ def handle(self) -> int:
 
         # Building package first, if told
         if self.option("build"):
-            if publisher.files and not self.confirm(
-                f"There are <info>{len(publisher.files)}</info> files ready for"
-                " publishing. Build anyway?"
-            ):
-                self.line_error("<error>Aborted!</error>")
-
-                return 1
+            if publisher.files:
+                if self.io.is_interactive():
+                    if not self.confirm(
+                        f"There are <info>{len(publisher.files)}</info> files ready for"
+                        f" publishing in {dist_dir}. Build anyway?"
+                    ):
+                        self.line_error("<error>Aborted!</error>")
+
+                        return 1
+
+                else:
+                    self.line(
+                        f"<warning>Warning: There are <info>{len(publisher.files)}</info> files "
+                        f"ready for publishing in {dist_dir}. Build anyway!</warning>"
+                    )
 
             self.call("build", args=f"--output {dist_dir}")
 

tests/console/commands/test_publish.py

@@ -5,6 +5,7 @@
 from pathlib import Path
 from typing import TYPE_CHECKING
 from typing import NoReturn
+from unittest.mock import PropertyMock
 
 import pytest
 import requests
@@ -215,3 +216,31 @@ def test_publish_dist_dir_and_build_options(
     assert "Publishing simple-project (1.2.3) to PyPI" in output
     assert "- Uploading simple_project-1.2.3.tar.gz" in error
     assert "- Uploading simple_project-1.2.3-py2.py3-none-any.whl" in error
+
+
+def test_publish_build_no_interaction_skips_confirmation(
+    app_tester: ApplicationTester, mocker: MockerFixture
+) -> None:
+    mocker.patch(
+        "poetry.publishing.publisher.Publisher.files",
+        new_callable=PropertyMock,
+        return_value=[Path("dist/simple_project-1.2.3-py2.py3-none-any.whl")],
+    )
+    confirm = mocker.patch("poetry.console.commands.publish.PublishCommand.confirm")
+    command_call = mocker.patch("poetry.console.commands.publish.PublishCommand.call")
+    publisher_publish = mocker.patch("poetry.publishing.Publisher.publish")
+
+    exit_code = app_tester.execute("publish --build --no-interaction --dry-run")
+
+    assert exit_code == 0
+    output = app_tester.io.fetch_output()
+    error = app_tester.io.fetch_error()
+
+    confirm.assert_not_called()
+    assert "Build anyway?" not in output
+    assert "Build anyway?" not in error
+    assert (
+        "Warning: There are 1 files ready for publishing in dist. Build anyway!"
+    ) in output
+    command_call.assert_called_once_with("build", args="--output dist")
+    assert publisher_publish.call_count == 1