Create workflow to prepare new releases

.github/workflows/generate-release.yml

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+name: Generate new release (manual)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "New Version (without leading v)"
+        required: true
+        type: string
+
+jobs:
+  generate-release:
+    name: Generate new release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: "scripts/release.py ${{ github.event.inputs.version }})"

scripts/release.py

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+#!/usr/bin/env python3
+# Run in root of repository
+# scripts/release.py <version number>
+
+import sys
+import json
+import subprocess
+from datetime import datetime
+
+CHANGELOG_FILE = "CHANGELOG.md"
+MAIN_CPP_FILE = "src/main.cpp"
+PACKAGE_JSON_FILE = "editors/code/package.json"
+
+assert len(sys.argv) == 2, "Usage: scripts/release.py <version number>"
+VERSION = sys.argv[1]
+
+CHANGELOG_DATE = datetime.now().strftime("%Y-%m-%d")
+
+# Update version in CHANGELOG.md
+new_changelog_lines: list[str] = []
+with open(CHANGELOG_FILE, "r") as file:
+    lines = file.readlines()
+
+    for line in lines:
+        new_changelog_lines.append(line)
+        if line.startswith("## [Unreleased]"):
+            new_changelog_lines.append("\n")
+            new_changelog_lines.append(f"## [{VERSION}] - {CHANGELOG_DATE}")
+            new_changelog_lines.append("\n")
+
+with open(CHANGELOG_FILE, "w") as file:
+    file.writelines(new_changelog_lines)
+
+# Update version in main.cpp
+new_main_cpp_lines: list[str] = []
+with open(MAIN_CPP_FILE, "r") as file:
+    lines = file.readlines()
+
+    for line in lines:
+        if line.strip().startswith('argparse::ArgumentParser program("luau-lsp", '):
+            new_line = (
+                line[0 : line.find(line.strip())]
+                + f'argparse::ArgumentParser program("luau-lsp", "{VERSION}");\n'
+            )
+            new_main_cpp_lines.append(new_line)
+        else:
+            new_main_cpp_lines.append(line)
+
+with open(MAIN_CPP_FILE, "w") as file:
+    file.writelines(new_main_cpp_lines)
+
+# Update version in package.json
+package_json_data = None
+with open(PACKAGE_JSON_FILE, "r") as t:
+    package_json_data = json.load(t)
+    package_json_data["version"] = VERSION
+
+with open(PACKAGE_JSON_FILE, "w") as t:
+    json.dump(package_json_data, t)
+
+# Run prettier
+subprocess.run(
+    ["npx", "prettier", "--write", CHANGELOG_FILE, PACKAGE_JSON_FILE], check=True
+)
+
+# Commit
+subprocess.run(
+    ["git", "add", CHANGELOG_FILE, MAIN_CPP_FILE, PACKAGE_JSON_FILE], check=True
+)
+subprocess.run(["git", "commit", "-m", f"v{VERSION}"], check=True)
+
+# Tag
+subprocess.run(["git", "tag", "-a", VERSION, "-m", VERSION], check=True)
+
+# Push
+subprocess.run(["git", "push"], check=True)
+subprocess.run(["git", "push", "--tags"], check=True)