feat: add presets

project_manager/preset/entry.py

@@ -0,0 +1,28 @@
+from collections import defaultdict
+from pathlib import Path
+from typing import Optional
+
+from ..entry import Entry, EntryDetector
+from .util import PresetUtil
+
+__all__ = ("PresetEntryDetector",)
+
+
+class PresetEntryDetector(EntryDetector):
+    def __init__(self, filename: Path):
+        self._preset = PresetUtil.resolve_preset(filename)
+
+    def detect_entry(self, basepath: Path) -> Optional["Entry"]:
+        tasks = defaultdict(list)
+        for preset_name, preset in self._preset.presets.items():
+            filename = basepath / preset.filename
+            if filename.exists():
+                loader = PresetUtil.resolve_loader(preset.loader)
+                with open(filename, "rb") as fd:
+                    data = loader(fd)
+                for task_name, task_pack in preset.tasks.items():
+                    for task_item_name, task in task_pack.items():
+                        if PresetUtil.check_conditions(data, task.conditions):
+                            tasks[task_name] += task.commands
+        if tasks:
+            return Entry(tasks, basepath)