#444 を実装する（スプリント m10b）

docs/specifications/post-start.md

@@ -143,8 +143,10 @@ Container startup failed: 2 of 3 instances did not become ready.
 
 ### 起動の後の処理の段
 
-`_run_post_start(project_name, scale, indices, dev_service_name, config, compose_file, run_deploy=True)` は、
+`_run_post_start(deployment, indices, config, run_deploy=True)` は、
 後処理の対象 `indices` へ次の順で処理を行う。対象が空なら何も行わない（token も発行しない）。
+`deployment` は起動した構成（`_ComposeDeployment`。`project_name`・`scale`・`dev_service_name`・`compose_file` の組）で、
+`up` / `scale` / `project post-start` が組んで渡す。
 
 | 順 | 処理 | 条件 | 失敗したとき |
 | --- | --- | --- | --- |

lib/devbase/commands/container.py

@@ -8,6 +8,7 @@
 import sys
 import time
 from contextlib import contextmanager
+from dataclasses import dataclass
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import List, Optional
@@ -1273,8 +1274,21 @@ def _run_pre_up_checks(config) -> bool:
     return True
 
 
-def _run_post_start(project_name: str, scale: int, indices, dev_service_name: str,
-                    config, compose_file, run_deploy: bool = True) -> None:
+@dataclass(frozen=True)
+class _ComposeDeployment:
+    """起動した構成。``up`` / ``scale`` / ``project post-start`` が起動の後の処理の段へ渡す組。
+
+    ``compose_file`` は ``-f`` で渡すファイル (スケールのファイルが無ければ ``None``)。
+    """
+
+    project_name: str
+    scale: int
+    dev_service_name: str
+    compose_file: Optional[Path]
+
+
+def _run_post_start(deployment: _ComposeDeployment, indices, config,
+                    run_deploy: bool = True) -> None:
     """起動の後の処理の段。後処理の対象の番号へ、インスタンスごとの処理を決まった順に行う。
 
     順は、不足リポジトリの報告 → ``./deploy`` → token の配布 → 窓のタイトルの設定で、
@@ -1287,6 +1301,10 @@ def _run_post_start(project_name: str, scale: int, indices, dev_service_name: st
     indices = list(indices)
     if not indices:
         return
+    project_name = deployment.project_name
+    scale = deployment.scale
+    dev_service_name = deployment.dev_service_name
+    compose_file = deployment.compose_file
 
     # clone できなかった repo があれば伝える (揃っていれば何も出さない)。
     _report_missing_repos(config, scale, dev_service_name, project_name,
@@ -1450,8 +1468,9 @@ def cmd_up(project_name: str = None, scale: int = None,
         if startup_error is not None:
             _warn_partial_start(startup_error, started, dev_service_name)
 
-        _run_post_start(project_name, scale, started, dev_service_name, config,
-                        override_file)
+        _run_post_start(
+            _ComposeDeployment(project_name, scale, dev_service_name, override_file),
+            started, config)
 
         _maybe_open_editor(project_name, open_editor, open_index, scale,
                            config, compose_file=override_file,
@@ -1565,8 +1584,8 @@ def cmd_post_start(project_name: Optional[str] = None, context: Optional[str] =
         return 1
 
     compose_file = _SCALE_COMPOSE_FILE if _SCALE_COMPOSE_FILE.exists() else None
-    _run_post_start(project_name, scale, targets, dev_service_name, config, compose_file,
-                    run_deploy=False)
+    _run_post_start(_ComposeDeployment(project_name, scale, dev_service_name, compose_file),
+                    targets, config, run_deploy=False)
     logger.info("=== Post-start completed ===")
     return 0
 
@@ -1882,8 +1901,9 @@ def cmd_scale(new_scale: int, project_name: str = None,
         if startup_error is not None:
             _warn_partial_start(startup_error, targets, dev_service_name)
 
-        _run_post_start(project_name, new_scale, targets, dev_service_name, config,
-                        override_file)
+        _run_post_start(
+            _ComposeDeployment(project_name, new_scale, dev_service_name, override_file),
+            targets, config)
 
         if _finish_partial('Scale', startup_error, project_name):
             return 1