69 lines
2.9 KiB
TypeScript
69 lines
2.9 KiB
TypeScript
// MigrationService — 旧版数据迁移（FR-D1/D3）
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import nodePath from 'node:path';
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import { promises as fs } from 'node:fs';
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import { MD_EXT } from '@hunter/shared';
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import { joinFrontmatter } from '../safe/frontmatter-codec.js';
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export interface MigrationResult {
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migrated: boolean;
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count: number;
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errors: { path: string; reason: string }[];
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}
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export class MigrationService {
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// FR-D1：检测旧版板块三级结构数据（.hunter/boards/），转换为文件库结构
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async detectAndMigrate(root: string): Promise<MigrationResult> {
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const oldDataDir = nodePath.join(root, '.hunter', 'boards');
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const exists = await fs.access(oldDataDir).then(() => true).catch(() => false);
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if (!exists) return { migrated: false, count: 0, errors: [] };
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const errors: { path: string; reason: string }[] = [];
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let count = 0;
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try {
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const boards = await fs.readdir(oldDataDir, { withFileTypes: true });
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for (const board of boards) {
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if (!board.isDirectory()) continue;
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const boardDir = nodePath.join(oldDataDir, board.name);
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try {
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const targetDir = nodePath.join(root, board.name);
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await fs.mkdir(targetDir, { recursive: true });
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await this.convertDir(boardDir, targetDir);
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count++;
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} catch (e) {
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errors.push({ path: board.name, reason: e instanceof Error ? e.message : String(e) });
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}
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}
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if (errors.length === 0) {
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await fs.rename(oldDataDir, nodePath.join(root, '.hunter', 'boards.migrated'));
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}
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} catch (e) {
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errors.push({ path: oldDataDir, reason: e instanceof Error ? e.message : String(e) });
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}
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return { migrated: count > 0, count, errors };
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}
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private async convertDir(srcAbs: string, destAbs: string): Promise<void> {
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const entries = await fs.readdir(srcAbs, { withFileTypes: true });
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for (const e of entries) {
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const srcPath = nodePath.join(srcAbs, e.name);
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if (e.isDirectory()) {
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const destPath = nodePath.join(destAbs, e.name);
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await fs.mkdir(destPath, { recursive: true });
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await this.convertDir(srcPath, destPath);
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} else if (e.isFile() && e.name.endsWith('.json')) {
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const raw = await fs.readFile(srcPath, 'utf8');
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const data = JSON.parse(raw);
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const title = data.title ?? e.name.slice(0, -5);
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const body = data.content ?? '';
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const meta: Record<string, unknown> = { title, createdAt: data.createdAt ?? Date.now() };
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if (data.tags) meta.tags = data.tags;
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if (data.star) meta.star = true;
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const mdName = String(title).replace(/[^\w\u4e00-\u9fa5\-]/g, '_') + MD_EXT;
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await fs.writeFile(nodePath.join(destAbs, mdName), joinFrontmatter(meta as any, body), 'utf8');
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} else if (e.isFile() && e.name.endsWith(MD_EXT)) {
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await fs.copyFile(srcPath, nodePath.join(destAbs, e.name));
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}
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}
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}
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}
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