fix(export): не падать с EPERM при сохранении в корень диска на Windows

Перед записью zip больше не вызываем mkdir для E:\ / C:\ — на Windows это даёт operation not permitted.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/main/project/ensureParentDir.test.ts

@@ -0,0 +1,26 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+import test from 'node:test';
+
+import { ensureParentDir } from './ensureParentDir';
+
+void test('ensureParentDir: creates nested parent', async () => {
+  const root = await fs.mkdtemp(path.join(os.tmpdir(), 'dnd-mkdir-'));
+  try {
+    const file = path.join(root, 'a', 'b', 'out.ttrpg.zip');
+    await ensureParentDir(file);
+    const st = await fs.stat(path.dirname(file));
+    assert.equal(st.isDirectory(), true);
+  } finally {
+    await fs.rm(root, { recursive: true, force: true });
+  }
+});
+
+void test('ensureParentDir: drive root is a no-op (Windows)', async () => {
+  if (process.platform !== 'win32') return;
+  // Must not throw EPERM the way fs.mkdir('E:\\') often does.
+  await ensureParentDir('E:\\campaign.ttrpg.zip');
+  await ensureParentDir('C:\\file.ttrpg.zip');
+});

app/main/project/ensureParentDir.ts

@@ -0,0 +1,14 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+
+/**
+ * Создаёт родительский каталог для файла.
+ * На Windows `mkdir('E:\\')` даёт EPERM — корень диска пропускаем.
+ */
+export async function ensureParentDir(filePath: string): Promise<void> {
+  const dir = path.dirname(filePath);
+  if (!dir || dir === '.') return;
+  const root = path.parse(path.resolve(filePath)).root;
+  if (root && path.resolve(dir) === path.resolve(root)) return;
+  await fs.mkdir(dir, { recursive: true });
+}

app/main/project/zipStore.legacyContract.test.ts

@@ -139,6 +139,16 @@ void test('main index: full zip import loads app-tokens like playlists', () => {
   assert.match(importFromPath[0], /importAppTokensFromOpenProjectCache/);
 });
 
+void test('zipStore: zipDir uses ensureParentDir (no mkdir of drive root)', () => {
+  const src = fs.readFileSync(path.join(here, 'zipStore.ts'), 'utf8');
+  assert.match(src, /from '\.\/ensureParentDir'/);
+  const i = src.indexOf('async function zipDir(');
+  assert.ok(i >= 0);
+  const block = src.slice(i, i + 800);
+  assert.match(block, /await ensureParentDir\(outZipPath\)/);
+  assert.doesNotMatch(block, /fs\.mkdir\(path\.dirname\(outZipPath\)/);
+});
+
 void test('atomicReplace: replaceFileAtomic must not rm destination before successful commit', () => {
   const src = fs.readFileSync(path.join(here, 'atomicReplace.ts'), 'utf8');
   const i = src.indexOf('export async function replaceFileAtomic');

app/main/project/zipStore.ts

@@ -112,6 +112,7 @@ import { getAppSemanticVersion } from '../versionInfo';
 
 import { reconcileAssetFiles } from './assetPrune';
 import { recoverOrphanProjectZipTmpInRoot, replaceFileAtomic } from './atomicReplace';
+import { ensureParentDir } from './ensureParentDir';
 import { rmWithRetries } from './fsRetry';
 import { optimizeImageBufferVisuallyLossless } from './optimizeImageImport.lib.mjs';
 import { getLegacyProjectsRootDirs, getProjectsCacheRootDir, getProjectsRootDir } from './paths';
@@ -475,7 +476,7 @@ export class ZipProjectStore {
     const relPath = `assets/${id}_${safeOrig}`;
     const abs = path.join(open.cacheDir, relPath);
     const sha256 = crypto.createHash('sha256').update(buf).digest('hex');
-    await fs.mkdir(path.dirname(abs), { recursive: true });
+    await ensureParentDir(abs);
     await fs.writeFile(abs, buf);
     const asset = buildMediaAsset(id, kind0, orig, relPath, sha256, buf.length);
 
@@ -1165,7 +1166,7 @@ export class ZipProjectStore {
       const safeOrig = sanitizeFileName(orig);
       const relPath = `assets/${id}_${safeOrig}`;
       const abs = path.join(open.cacheDir, relPath);
-      await fs.mkdir(path.dirname(abs), { recursive: true });
+      await ensureParentDir(abs);
       await fs.copyFile(filePath, abs);
       staged.push(buildMediaAsset(id, kind, orig, relPath, sha256, buf.length));
     }
@@ -1226,7 +1227,7 @@ export class ZipProjectStore {
       const safeOrig = sanitizeFileName(orig);
       const relPath = `assets/${id}_${safeOrig}`;
       const abs = path.join(open.cacheDir, relPath);
-      await fs.mkdir(path.dirname(abs), { recursive: true });
+      await ensureParentDir(abs);
       await fs.copyFile(filePath, abs);
       staged.push(buildMediaAsset(id, kind, orig, relPath, sha256, buf.length));
     }
@@ -1316,7 +1317,7 @@ export class ZipProjectStore {
       const safeOrig = sanitizeFileName(orig);
       const relPath = `assets/${id}_${safeOrig}`;
       const abs = path.join(open.cacheDir, relPath);
-      await fs.mkdir(path.dirname(abs), { recursive: true });
+      await ensureParentDir(abs);
       await fs.writeFile(abs, buf);
       stagedAsset = buildMediaAsset(id, kind, orig, relPath, sha256, buf.length);
       nextAssetId = id;
@@ -1551,7 +1552,7 @@ export class ZipProjectStore {
       const safeOrig = sanitizeFileName(orig);
       const relPath = `assets/${id}_${safeOrig}`;
       const abs = path.join(open.cacheDir, relPath);
-      await fs.mkdir(path.dirname(abs), { recursive: true });
+      await ensureParentDir(abs);
       await fs.writeFile(abs, buf);
       stagedAsset = buildMediaAsset(id, kind, orig, relPath, sha256, buf.length);
       nextAssetId = id;
@@ -2038,7 +2039,7 @@ export class ZipProjectStore {
 
   private async packZipFromCache(cacheDir: string, zipPath: string): Promise<void> {
     const tmpPath = `${zipPath}.tmp`;
-    await fs.mkdir(path.dirname(zipPath), { recursive: true });
+    await ensureParentDir(zipPath);
     await zipDir(cacheDir, tmpPath);
     const st = await fs.stat(tmpPath).catch(() => null);
     if (!st?.isFile() || st.size < 22) {
@@ -2178,7 +2179,7 @@ export class ZipProjectStore {
     }
     const src = path.join(getProjectsRootDir(), entry.fileName);
     const dest = path.resolve(destinationPath);
-    await fs.mkdir(path.dirname(dest), { recursive: true });
+    await ensureParentDir(dest);
     if (onProgress) onProgress({ stage: 'copy', percent: 1, detail: 'Копирование…' });
     await copyFileWithProgress(src, dest, (pct) => {
       if (onProgress) onProgress({ stage: 'copy', percent: pct, detail: 'Копирование…' });
@@ -2291,7 +2292,7 @@ export class ZipProjectStore {
         if (!a) continue;
         const srcAbs = path.join(snap.cacheDir, a.relPath);
         const destAbs = path.join(exportCache, a.relPath);
-        await fs.mkdir(path.dirname(destAbs), { recursive: true });
+        await ensureParentDir(destAbs);
         await fs.copyFile(srcAbs, destAbs);
         if (onProgress) {
           const pct = Math.round(((i + 1) / Math.max(1, assetIds.length)) * 75);
@@ -2428,7 +2429,7 @@ export class ZipProjectStore {
       if (!srcAsset || !tgtMeta) continue;
       const srcAbs = path.join(sourceCache, srcAsset.relPath);
       const destAbs = path.join(targetCache, tgtMeta.relPath);
-      await fs.mkdir(path.dirname(destAbs), { recursive: true });
+      await ensureParentDir(destAbs);
       await fs.copyFile(srcAbs, destAbs);
       if (onProgress) {
         const pct = Math.round(((i + 1) / Math.max(1, assetCopies.length)) * 90);
@@ -2894,7 +2895,7 @@ async function copyFileWithProgress(
     onPercent(100);
     return;
   }
-  await fs.mkdir(path.dirname(dest), { recursive: true });
+  await ensureParentDir(dest);
   await new Promise<void>((resolve, reject) => {
     let done = 0;
     const rs = fssync.createReadStream(src);
@@ -3027,7 +3028,7 @@ async function zipDir(srcDir: string, outZipPath: string): Promise<void> {
     }
     zipfile.addBuffer(buf, rel, zipOptionsForRelativeEntry(rel));
   }
-  await fs.mkdir(path.dirname(outZipPath), { recursive: true });
+  await ensureParentDir(outZipPath);
   const out = fssync.createWriteStream(outZipPath);
   const done = new Promise<void>((resolve, reject) => {
     out.on('close', resolve);