mirror of
https://github.com/par274/sharpemu.git
synced 2026-07-22 19:06:15 +08:00
added a release script to automate the release process (#309)
This commit is contained in:
Berk
@@ -0,0 +1,408 @@
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#!/usr/bin/env python3
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# Copyright (C) 2026 SharpEmu Emulator Project
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# SPDX-License-Identifier: GPL-2.0-or-later
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from __future__ import annotations
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import argparse
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import re
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import subprocess
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import sys
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from pathlib import Path
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VERSION_PATTERN = re.compile(r"^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?$")
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VERSION_ELEMENT_PATTERN = re.compile(
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r"(<SharpEmuVersion>)([^<]+)(</SharpEmuVersion>)"
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)
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class ReleaseError(RuntimeError):
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pass
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def run_git(
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*args: str,
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cwd: Path,
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capture_output: bool = False,
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) -> str:
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command = ["git", *args]
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try:
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result = subprocess.run(
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command,
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cwd=cwd,
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check=True,
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text=True,
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capture_output=capture_output,
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)
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except FileNotFoundError:
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raise ReleaseError("Git was not found in PATH.") from None
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except subprocess.CalledProcessError as error:
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stderr = error.stderr.strip() if error.stderr else ""
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detail = f"\n{stderr}" if stderr else ""
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raise ReleaseError(
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f"Git command failed: {' '.join(command)}{detail}"
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) from error
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return result.stdout.strip() if capture_output else ""
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def find_repository_root(script_path: Path) -> Path:
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root = run_git(
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"rev-parse",
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"--show-toplevel",
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cwd=script_path.resolve().parent,
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capture_output=True,
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)
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return Path(root)
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def get_status(repository_root: Path) -> str:
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return run_git(
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"status",
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"--porcelain",
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cwd=repository_root,
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capture_output=True,
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)
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def ensure_clean_worktree(repository_root: Path) -> None:
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status = get_status(repository_root)
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if status:
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raise ReleaseError(
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"The working tree is not clean.\n\n"
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f"{status}\n\n"
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"Commit, stash, or remove these changes first."
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)
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def get_current_branch(repository_root: Path) -> str:
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branch = run_git(
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"branch",
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"--show-current",
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cwd=repository_root,
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capture_output=True,
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)
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if not branch:
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raise ReleaseError(
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"HEAD is detached. Switch to a branch before continuing."
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)
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return branch
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def ensure_branch_does_not_exist(
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repository_root: Path,
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branch: str,
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remote: str,
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) -> None:
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local_branch = run_git(
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"branch",
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"--list",
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branch,
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cwd=repository_root,
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capture_output=True,
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)
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if local_branch:
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raise ReleaseError(f"Branch {branch} already exists locally.")
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remote_branch = run_git(
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"ls-remote",
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"--heads",
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remote,
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branch,
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cwd=repository_root,
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capture_output=True,
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)
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if remote_branch:
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raise ReleaseError(
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f"Branch {branch} already exists on {remote}."
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)
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def ensure_tag_does_not_exist(
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repository_root: Path,
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tag: str,
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remote: str,
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) -> None:
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local_tag = run_git(
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"tag",
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"--list",
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tag,
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cwd=repository_root,
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capture_output=True,
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)
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if local_tag:
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raise ReleaseError(f"Tag {tag} already exists locally.")
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remote_tag = run_git(
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"ls-remote",
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"--tags",
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remote,
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f"refs/tags/{tag}",
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cwd=repository_root,
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capture_output=True,
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)
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if remote_tag:
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raise ReleaseError(f"Tag {tag} already exists on {remote}.")
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def read_version(props_path: Path) -> str:
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if not props_path.exists():
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raise ReleaseError(f"Version file not found: {props_path}")
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content = props_path.read_text(encoding="utf-8")
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match = VERSION_ELEMENT_PATTERN.search(content)
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if match is None:
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raise ReleaseError(
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f"SharpEmuVersion was not found in {props_path.name}."
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)
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return match.group(2).strip()
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def update_version(props_path: Path, version: str) -> str:
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content = props_path.read_text(encoding="utf-8")
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current_version = read_version(props_path)
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if current_version == version:
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raise ReleaseError(
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f"SharpEmuVersion is already set to {version}."
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)
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updated_content, replacement_count = VERSION_ELEMENT_PATTERN.subn(
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rf"\g<1>{version}\g<3>",
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content,
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count=1,
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)
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if replacement_count != 1:
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raise ReleaseError(
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"Expected exactly one SharpEmuVersion element."
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)
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props_path.write_text(
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updated_content,
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encoding="utf-8",
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newline="\n",
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)
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return current_version
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def prepare_release(
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repository_root: Path,
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props_path: Path,
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version: str,
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remote: str,
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) -> None:
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ensure_clean_worktree(repository_root)
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current_branch = get_current_branch(repository_root)
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if current_branch != "main":
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raise ReleaseError(
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f"Prepare must be run from main, not {current_branch}."
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)
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run_git(
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"pull",
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"--ff-only",
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remote,
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"main",
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cwd=repository_root,
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)
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branch = f"release/{version}"
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ensure_branch_does_not_exist(
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repository_root,
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branch,
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remote,
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)
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previous_version = read_version(props_path)
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run_git(
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"switch",
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"-c",
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branch,
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cwd=repository_root,
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)
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try:
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update_version(props_path, version)
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relative_props_path = props_path.relative_to(repository_root)
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run_git(
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"add",
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relative_props_path.as_posix(),
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cwd=repository_root,
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)
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run_git(
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"commit",
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"-m",
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f"chore: bump version to {version}",
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cwd=repository_root,
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)
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run_git(
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"push",
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"-u",
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remote,
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branch,
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cwd=repository_root,
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)
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except Exception:
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print(
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"\nPrepare failed. The release branch may still exist locally.",
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file=sys.stderr,
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)
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raise
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print()
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print(f"Prepared release {previous_version} -> {version}")
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print(f"Branch pushed: {branch}")
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print()
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print("Open a pull request from:")
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print(f" {branch}")
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print("into:")
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print(" main")
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print()
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print("After merging the PR, run:")
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print(f" python scripts/release.py tag {version}")
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def create_release_tag(
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repository_root: Path,
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props_path: Path,
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version: str,
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remote: str,
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) -> None:
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ensure_clean_worktree(repository_root)
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current_branch = get_current_branch(repository_root)
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if current_branch != "main":
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raise ReleaseError(
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f"Tagging must be run from main, not {current_branch}."
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)
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run_git(
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"pull",
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"--ff-only",
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remote,
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"main",
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cwd=repository_root,
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)
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current_version = read_version(props_path)
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if current_version != version:
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raise ReleaseError(
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"Version mismatch:\n"
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f" Directory.Build.props: {current_version}\n"
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f" Requested tag: {version}"
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)
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tag = f"v{version}"
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ensure_tag_does_not_exist(
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repository_root,
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tag,
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remote,
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)
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run_git(
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"tag",
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"-a",
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tag,
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"-m",
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f"SharpEmu {version}",
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cwd=repository_root,
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)
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run_git(
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"push",
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remote,
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tag,
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cwd=repository_root,
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)
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print()
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print(f"Successfully pushed tag {tag}.")
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print("The release workflow should start automatically.")
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def parse_arguments() -> argparse.Namespace:
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parser = argparse.ArgumentParser(
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description="Prepare or tag a SharpEmu release."
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)
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subparsers = parser.add_subparsers(
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dest="command",
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required=True,
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)
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for command in ("prepare", "tag"):
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subparser = subparsers.add_parser(command)
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subparser.add_argument(
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"version",
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help="Version without the v prefix, e.g. 0.0.2-beta.2.",
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)
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subparser.add_argument(
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"--remote",
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default="origin",
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help="Git remote. Default: origin.",
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)
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arguments = parser.parse_args()
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if not VERSION_PATTERN.fullmatch(arguments.version):
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parser.error(
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"Version must look like 0.0.2, "
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"0.0.2-beta.2, or 0.0.2-rc.1."
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)
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return arguments
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def main() -> int:
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arguments = parse_arguments()
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try:
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repository_root = find_repository_root(Path(__file__))
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props_path = repository_root / "Directory.Build.props"
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if arguments.command == "prepare":
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prepare_release(
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repository_root,
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props_path,
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arguments.version,
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arguments.remote,
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)
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else:
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create_release_tag(
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repository_root,
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props_path,
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arguments.version,
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arguments.remote,
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)
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except ReleaseError as error:
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print(f"Error: {error}", file=sys.stderr)
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return 1
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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