69 lines
2.5 KiB
Python
69 lines
2.5 KiB
Python
"""Safely fast-forward a Git installation of this node package."""
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import os
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import subprocess
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from pathlib import Path
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PLUGIN_DIR = Path(__file__).resolve().parent.parent
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class UpdateError(Exception):
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pass
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def _git(*args, timeout=60, check=True):
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env = os.environ.copy()
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env["GIT_TERMINAL_PROMPT"] = "0"
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env["GCM_INTERACTIVE"] = "Never"
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try:
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result = subprocess.run(
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["git", *args],
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cwd=PLUGIN_DIR,
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env=env,
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capture_output=True,
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text=True,
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encoding="utf-8",
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errors="replace",
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timeout=timeout,
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)
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except FileNotFoundError as exc:
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raise UpdateError("未找到 Git，请先安装 Git。") from exc
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except subprocess.TimeoutExpired as exc:
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raise UpdateError("Git 操作超时，请检查网络后重试。") from exc
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if check and result.returncode:
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detail = (result.stderr or result.stdout).strip().splitlines()
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raise UpdateError(detail[-1] if detail else "Git 操作失败。")
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return result
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def update_package():
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"""Update origin/main without discarding local changes or switching branches."""
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if not (PLUGIN_DIR / ".git").exists():
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raise UpdateError("当前节点包不是 Git 安装。请通过 Git 安装后再使用界面更新。")
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branch = _git("symbolic-ref", "--quiet", "--short", "HEAD", check=False)
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if branch.returncode or branch.stdout.strip() != "main":
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raise UpdateError("当前不在 main 分支，请手动检查分支后更新。")
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if _git("status", "--porcelain", "--untracked-files=no").stdout.strip():
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raise UpdateError("节点包有本地修改，请先保存或处理修改后再更新。")
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old_commit = _git("rev-parse", "HEAD").stdout.strip()
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old_requirements = _git("show", "HEAD:requirements.txt", check=False).stdout
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_git("fetch", "origin", "main")
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new_commit = _git("rev-parse", "FETCH_HEAD").stdout.strip()
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if old_commit == new_commit:
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return {"updated": False, "version": old_commit[:7], "requirements_changed": False}
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if _git("merge-base", "--is-ancestor", "HEAD", "FETCH_HEAD", check=False).returncode:
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raise UpdateError("本地与 origin/main 已分叉，无法安全快进。请手动处理。")
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_git("merge", "--ff-only", "FETCH_HEAD")
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requirements_changed = old_requirements != (PLUGIN_DIR / "requirements.txt").read_text(encoding="utf-8")
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return {
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"updated": True,
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"version": new_commit[:7],
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"requirements_changed": requirements_changed,
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}
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