feat: publish Dever core with project scaffolding and versioned AI skills

test/performance/settings.py

@@ -0,0 +1,59 @@
+"""基准配置与隔离 peer 布置；配置只来自 config/setting.json。"""
+
+import errno
+import json
+import os
+from pathlib import Path
+import shutil
+import tempfile
+
+ROOT = Path(__file__).resolve().parents[2]
+PEER_CONFIGURATION = "setting-json-v1"
+
+
+def write_private_json(path, value, *, replace=False):
+    path = Path(path)
+    temporary = None
+    if replace:
+        descriptor, temporary = tempfile.mkstemp(dir=path.parent, prefix=f".{path.name}-")
+    else:
+        descriptor = os.open(path, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o600)
+    try:
+        with os.fdopen(descriptor, "w") as output:
+            os.fchmod(output.fileno(), 0o600)
+            json.dump(value, output, indent=2)
+            output.write("\n")
+        if temporary is not None:
+            os.replace(temporary, path)
+    finally:
+        if temporary is not None:
+            Path(temporary).unlink(missing_ok=True)
+
+
+def stage_peer(executable, directory, settings):
+    """独立配置共用不可变程序；测量期间不得重写输入二进制。"""
+    executable = Path(executable).resolve(strict=True)
+    destination = directory / executable.name
+    (directory / "config").mkdir()
+    write_private_json(directory / "config/setting.json", {"benchmark": settings})
+    try:
+        os.link(executable, destination)
+    except OSError as error:
+        if error.errno != errno.EXDEV:
+            raise
+        # 配置目录可以位于另一文件系统；这种情况下硬链接不可用。
+        with destination.open("xb") as output, executable.open("rb") as source:
+            shutil.copyfileobj(source, output)
+        shutil.copymode(executable, destination)
+    return destination.resolve()
+
+
+def configured_peer(name, setting_path=ROOT / "config/setting.json"):
+    document = json.loads(setting_path.read_text())
+    section = document.get("performance") if isinstance(document, dict) else None
+    value = section.get(name) if isinstance(section, dict) else None
+    if not isinstance(value, str) or not value.strip():
+        raise ValueError(f"config/setting.json must define performance.{name} as a binary path")
+    # 仓库设置中的相对路径以项目根目录为基准。
+    path = Path(value)
+    return (setting_path.parent.parent / path).resolve(strict=True)