chore: fix release workflow node version

.gitea/workflows/build.yml

@@ -15,11 +15,13 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '24'
+          node-version: '26'
           cache: npm
 
       - name: Install dependencies
@@ -28,6 +30,48 @@ jobs:
       - name: Clean dist
         run: rm -f dist/*.exe
 
+      - name: Generate release notes
+        run: |
+          python - <<'PY'
+          import os
+          import pathlib
+          import subprocess
+
+          tag = os.environ["BUILD_VERSION"]
+
+          try:
+            previous_tag = subprocess.check_output(
+              ["git", "describe", "--tags", "--abbrev=0", f"{tag}^"],
+              text=True,
+            ).strip()
+          except subprocess.CalledProcessError:
+            previous_tag = ""
+
+          log_range = f"{previous_tag}..{tag}" if previous_tag else tag
+          subjects = subprocess.check_output(
+            ["git", "log", "--pretty=format:%s", log_range],
+            text=True,
+          ).splitlines()
+
+          notes = []
+          for subject in subjects:
+            subject = subject.strip()
+            if not subject:
+              continue
+            if subject.startswith("chore: bump version"):
+              continue
+            if subject.lower() == "no message":
+              continue
+            notes.append(f"- {subject}")
+
+          if not notes:
+            notes = ["- Release build and version bump."]
+
+          body = "## What\'s new\n\n" + "\n".join(notes) + "\n"
+          pathlib.Path("release-notes.md").write_text(body, encoding="utf-8")
+          print(body)
+          PY
+
       - name: Build Windows executable
         run: npm run build:win
 
@@ -36,6 +80,7 @@ jobs:
         with:
           tag_name: ${{ github.ref_name }}
           name: gSheets-Rate-Assistant ${{ github.ref_name }}
+          body_path: release-notes.md
           files: dist/*.exe
 
       - name: Mirror release to GitHub
@@ -61,6 +106,8 @@ jobs:
           tag = os.environ["BUILD_VERSION"]
           release_name = f"gSheets-Rate-Assistant {tag}"
           asset_path = next((os.path.join("dist", name) for name in os.listdir("dist") if name.endswith(".exe")), None)
+          with open("release-notes.md", "r", encoding="utf-8") as notes_file:
+            release_notes = notes_file.read()
 
           if asset_path is None:
             raise SystemExit("No Windows executable found in dist/")
@@ -100,6 +147,7 @@ jobs:
           payload = {
             "tag_name": tag,
             "name": release_name,
+            "body": release_notes,
             "draft": False,
             "prerelease": False,
             "generate_release_notes": False,

index.js

@@ -10,6 +10,7 @@ const stringifyModule = require('./node_modules/csv-stringify/dist/cjs/sync.cjs'
 const stringify = typeof stringifyModule === 'function'
   ? stringifyModule
   : stringifyModule.default || stringifyModule.stringify || stringifyModule;
+const {version: packageVersion} = require('./package.json');
 const {loadConfig, resolveOutputPath} = require('./lib/config');
 const {buildThrottle, applyRateLimitBuffer, getTotalRateLimitPerMinute} = require('./lib/rate');
 const {runOnboarding} = require('./lib/onboarding');
@@ -336,7 +337,7 @@ async function scheduleRuns(config) {
     throw new Error('No sheets configured to pull in config.json');
   }
 
-  console.log('Google Sheets Rate Assistant');
+  console.log(`Google Sheets Rate Assistant v${packageVersion}`);
 
   const firstApiKey = getFirstApiKey(config);
   const titleMap = {};

lib/auth.js

@@ -1,5 +1,7 @@
 const fs = require('fs');
 const path = require('path');
+const https = require('https');
+const crypto = require('crypto');
 const {applyRateLimitBuffer} = require('./rate');
 const {fetchSpreadsheetValuesBatch} = require('./sheets');
 
@@ -24,6 +26,128 @@ function resolveConfigPath(config, candidatePath) {
   return path.resolve(getConfigBaseDir(config), candidatePath);
 }
 
+function base64UrlEncode(value) {
+  return Buffer.from(value)
+    .toString('base64')
+    .replace(/=/g, '')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_');
+}
+
+function createServiceAccountAuthClient(credentials) {
+  const scopes = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
+  const tokenUri = credentials.token_uri || 'https://oauth2.googleapis.com/token';
+  const tokenCache = {accessToken: '', expiryDate: 0};
+
+  async function requestAccessToken() {
+    if (!credentials.client_email || !credentials.private_key) {
+      throw new Error('Service account credentials must include client_email and private_key');
+    }
+
+    const now = Math.floor(Date.now() / 1000);
+    const header = {alg: 'RS256', typ: 'JWT'};
+    const payload = {
+      iss: credentials.client_email,
+      scope: scopes.join(' '),
+      aud: tokenUri,
+      iat: now,
+      exp: now + 3600,
+    };
+    const unsignedToken = `${base64UrlEncode(JSON.stringify(header))}.${base64UrlEncode(JSON.stringify(payload))}`;
+    const signer = crypto.createSign('RSA-SHA256');
+    signer.update(unsignedToken);
+    signer.end();
+    const signature = signer.sign(credentials.private_key);
+    const assertion = `${unsignedToken}.${base64UrlEncode(signature)}`;
+    const body = `grant_type=${encodeURIComponent('urn:ietf:params:oauth:grant-type:jwt-bearer')}&assertion=${encodeURIComponent(assertion)}`;
+
+    const tokenUrl = new URL(tokenUri);
+    const requestOptions = {
+      protocol: tokenUrl.protocol,
+      hostname: tokenUrl.hostname,
+      port: tokenUrl.port || 443,
+      method: 'POST',
+      path: `${tokenUrl.pathname}${tokenUrl.search}`,
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+        'Content-Length': Buffer.byteLength(body),
+      },
+    };
+
+    const responseBody = await new Promise((resolve, reject) => {
+      const request = https.request(requestOptions, response => {
+        let responseText = '';
+        response.setEncoding('utf8');
+
+        response.on('data', chunk => {
+          responseText += chunk;
+        });
+
+        response.on('end', () => {
+          if (response.statusCode >= 200 && response.statusCode < 300) {
+            resolve(responseText);
+            return;
+          }
+
+          let message = `Token request failed with status ${response.statusCode}`;
+          try {
+            const parsed = JSON.parse(responseText);
+            if (parsed && parsed.error && parsed.error_description) {
+              message = `${parsed.error}: ${parsed.error_description}`;
+            } else if (parsed && parsed.error && parsed.error.message) {
+              message = parsed.error.message;
+            }
+          } catch (_) {
+            if (responseText) {
+              message = responseText;
+            }
+          }
+
+          reject(new Error(message));
+        });
+      });
+
+      request.on('error', reject);
+      request.write(body);
+      request.end();
+    });
+
+    const tokenData = JSON.parse(responseBody);
+    if (!tokenData.access_token) {
+      throw new Error('Token response did not include access_token');
+    }
+
+    tokenCache.accessToken = tokenData.access_token;
+    tokenCache.expiryDate = Date.now() + Math.max(0, (tokenData.expires_in || 3600) - 60) * 1000;
+    return tokenData.access_token;
+  }
+
+  return {
+    scopes,
+    async getAccessToken() {
+      if (tokenCache.accessToken && Date.now() < tokenCache.expiryDate) {
+        return {token: tokenCache.accessToken, expiry_date: tokenCache.expiryDate};
+      }
+
+      const accessToken = await requestAccessToken();
+      return {token: accessToken, expiry_date: tokenCache.expiryDate};
+    },
+    async getRequestHeaders() {
+      const token = await this.getAccessToken();
+      return {Authorization: `Bearer ${token.token}`};
+    },
+  };
+}
+
+function readServiceAccountCredentials(resolvedPath) {
+  try {
+    const raw = fs.readFileSync(resolvedPath, 'utf8');
+    return JSON.parse(raw);
+  } catch (e) {
+    throw new Error(`Failed to read/parse service account credentials at ${resolvedPath}: ${e.message}`);
+  }
+}
+
 function loadApiKeys(config) {
   const apiKeys = [];
   const defaultRateLimit = config.rateLimitPerMinute || 50;
@@ -85,21 +209,8 @@ function createServiceAccountBatchFetcher(config) {
     if (!fs.existsSync(resolvedPath)) {
       throw new Error(`Service account credentials not found: ${resolvedPath}`);
     }
-
+    const credentials = readServiceAccountCredentials(resolvedPath);
-    let credentials;
+    const authClient = createServiceAccountAuthClient(credentials);
-    try {
-      credentials = JSON.parse(fs.readFileSync(resolvedPath, 'utf8'));
-    } catch (e) {
-      throw new Error(`Failed to read/parse service account credentials at ${resolvedPath}: ${e.message}`);
-    }
-
-    let authClient;
-    try {
-      authClient = google.auth.fromJSON(credentials);
-    } catch (e) {
-      throw new Error(`Failed to initialize auth client from credentials at ${resolvedPath}: ${e.message}`);
-    }
-    authClient.scopes = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
 
     const bufferedRateLimit = applyRateLimitBuffer(rateLimitPerMinute);
     const interval = Math.ceil(60000 / bufferedRateLimit);
@@ -222,11 +333,8 @@ function getFirstServiceAccountAuthClient(config) {
   if (!fs.existsSync(resolvedPath)) return null;
 
   try {
-    const raw = fs.readFileSync(resolvedPath, 'utf8');
+    const credentials = readServiceAccountCredentials(resolvedPath);
-    const credentials = JSON.parse(raw);
+    return createServiceAccountAuthClient(credentials);
-    const authClient = google.auth.fromJSON(credentials);
-    authClient.scopes = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
-    return authClient;
   } catch (e) {
     console.error(`Failed to load first service account from ${resolvedPath}: ${e.message}`);
     return null;
@@ -242,11 +350,8 @@ function loadAuth(config) {
     if (!fs.existsSync(resolvedPath)) {
       throw new Error(`Credentials file not found: ${resolvedPath}`);
     }
-    const raw = fs.readFileSync(resolvedPath, 'utf8');
+    const credentials = readServiceAccountCredentials(resolvedPath);
-    const credentials = JSON.parse(raw);
+    return createServiceAccountAuthClient(credentials);
-    const authClient = google.auth.fromJSON(credentials);
-    authClient.scopes = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
-    return authClient;
   }
 
   return getFirstServiceAccountAuthClient(config);
@@ -258,6 +363,6 @@ module.exports = {
   createServiceAccountBatchFetcher,
   createApiKeyBatchFetcher,
   getFirstApiKey,
-  getFirstServiceAccountAuthClient
+  getFirstServiceAccountAuthClient,
-  , loadAuth
+  loadAuth,
 };

lib/config.js

@@ -1,6 +1,14 @@
 const fs = require('fs');
 const path = require('path');
 
+let isSingleExecutableApp = false;
+try {
+  const sea = require('node:sea');
+  isSingleExecutableApp = typeof sea.isSea === 'function' && sea.isSea();
+} catch {
+  isSingleExecutableApp = false;
+}
+
 const CONFIG_FILE_NAME = 'config.json';
 const DEFAULT_CONFIG_TEMPLATE = JSON.stringify({
   apiKeys: [
@@ -56,12 +64,12 @@ const DEFAULT_CONFIG_TEMPLATE = JSON.stringify({
 }, null, 2) + '\n';
 
 function getDefaultConfigPath() {
-  const packagedApp = Boolean(process.pkg);
+  const packagedApp = isSingleExecutableApp;
   return path.resolve(packagedApp ? path.dirname(process.execPath) : process.cwd(), CONFIG_FILE_NAME);
 }
 
 function getConfigPathCandidates() {
-  const packagedApp = Boolean(process.pkg);
+  const packagedApp = isSingleExecutableApp;
   const externalDefault = getDefaultConfigPath();
 
   return [

lib/sheets.js

@@ -45,35 +45,37 @@ function extractErrorMessage(data) {
 function requestJson(urlString, headers = {}) {
   return new Promise((resolve, reject) => {
     const url = new URL(urlString);
-    const request = https.request(
+    const requestOptions = {
-      url,
+      protocol: url.protocol,
-      {
+      hostname: url.hostname,
-        method: 'GET',
+      port: url.port || 443,
-        headers: Object.assign({Accept: 'application/json'}, headers),
+      method: 'GET',
-      },
+      path: `${url.pathname}${url.search}`,
-      response => {
+      headers: Object.assign({Accept: 'application/json'}, headers),
-        let body = '';
+    };
-        response.setEncoding('utf8');
 
-        response.on('data', chunk => {
+    const request = https.request(requestOptions, response => {
-          body += chunk;
+      let body = '';
-        });
+      response.setEncoding('utf8');
 
-        response.on('end', () => {
+      response.on('data', chunk => {
-          const data = parseResponseBody(body);
+        body += chunk;
+      });
 
-          if (response.statusCode >= 200 && response.statusCode < 300) {
+      response.on('end', () => {
-            resolve({status: response.statusCode, headers: response.headers, data});
+        const data = parseResponseBody(body);
-            return;
-          }
 
-          const message = extractErrorMessage(data) || `Request failed with status ${response.statusCode}`;
+        if (response.statusCode >= 200 && response.statusCode < 300) {
-          const error = new Error(message);
+          resolve({status: response.statusCode, headers: response.headers, data});
-          error.response = {status: response.statusCode, headers: response.headers, data};
+          return;
-          reject(error);
+        }
-        });
+
-      }
+        const message = extractErrorMessage(data) || `Request failed with status ${response.statusCode}`;
-    );
+        const error = new Error(message);
+        error.response = {status: response.statusCode, headers: response.headers, data};
+        reject(error);
+      });
+    });
 
     request.on('error', reject);
     request.end();
@@ -96,15 +98,15 @@ async function requestSheetsJson(pathname, context, queryParams = {}) {
   const headers = {};
 
   if (context && context.authClient) {
-    if (typeof context.authClient.getRequestHeaders === 'function') {
+    if (typeof context.authClient.getAccessToken === 'function') {
-      const authHeaders = await context.authClient.getRequestHeaders(url.toString());
-      Object.assign(headers, authHeaders || {});
-    } else if (typeof context.authClient.getAccessToken === 'function') {
       const token = await context.authClient.getAccessToken();
       const accessToken = token && typeof token === 'object' ? token.token || token.access_token : token;
       if (accessToken) {
         headers.Authorization = `Bearer ${accessToken}`;
       }
+    } else if (typeof context.authClient.getRequestHeaders === 'function') {
+      const authHeaders = await context.authClient.getRequestHeaders(url.toString());
+      Object.assign(headers, authHeaders || {});
     }
   }
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "google-sheets-rate-assistant",
-  "version": "2.1.8",
+  "version": "2.1.11",
   "description": "Pull Google Sheets data and export to CSV with configurable schedules and rate limiting.",
   "main": "index.js",
   "bin": "index.js",
@@ -14,11 +14,6 @@
     "p-throttle": "^8.1.0"
   },
   "devDependencies": {
-    "pkg": "^5.8.1"
+    "esbuild": "^0.25.9"
-  },
-  "pkg": {
-    "assets": [
-      "node_modules/csv-stringify/dist/cjs/sync.cjs"
-    ]
   }
 }

readme.md

@@ -4,7 +4,7 @@ This Node.js application pulls configured Google Sheets documents and exports th
 
 ## Setup
 
-Download the latest version from the [Releases tab](./releases) and run it.
+Download the latest version from the Releases and run it.
 
 1. If `config.json` does not exist, the app will ask whether you want a wizard or a starter config file.
 2. If you choose the config-file path instead of the wizard, configure authentication in `config.json` — choose one of:
@@ -63,18 +63,9 @@ If `config.json` is missing, the app creates a starter file next to the executab
 
 If you choose the wizard, it will ask for the auth method, credential count, document count, and sheet names. It will not ask for output directories or file names.
 
-## Windows Packaging
+## Build Note
 
-To build a Windows executable from source, run:
+The Windows packaging script in `scripts/build-win.js` now builds a single executable using Node 26's SEA workflow.
-
-```bash
-npm run build:win
-```
-
-That creates `dist/gSheets-Rate-Assistant-v2.1.8.exe` using the current version in the filename. For distribution, ship the exe alongside a `config.json` and any service account credential files, or set `GSA_CONFIG` to point at a different config file.
-
-Gitea now builds only on version tags like `v1.1.1` through the workflow in `.gitea/workflows/build.yml`.
-If you also want the same tag to create a GitHub release, add `RELEASE_GITHUB_TOKEN` and `RELEASE_GITHUB_REPO` as secrets in Gitea so the workflow can mirror the release and upload the Windows asset to GitHub.
 
 ## AI Disclosure
 

scripts/build-win.js

@@ -1,6 +1,8 @@
 const fs = require('fs');
+const os = require('os');
 const path = require('path');
-const {exec} = require('pkg');
+const {execFileSync} = require('child_process');
+const esbuild = require('esbuild');
 const {version: packageVersion} = require('../package.json');
 
 function normalizeBuildVersion(value) {
@@ -14,9 +16,33 @@ async function main() {
     fs.mkdirSync(distDir, {recursive: true});
   }
 
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gsa-sea-'));
+  const bundlePath = path.join(tempDir, 'index.cjs');
+  const seaBlobPath = path.join(tempDir, 'sea-prep.blob');
+  const seaConfigPath = path.join(tempDir, 'sea-config.json');
   const buildVersion = normalizeBuildVersion(process.env.BUILD_VERSION);
   const outputFile = path.join(distDir, `gSheets-Rate-Assistant-${buildVersion}.exe`);
-  await exec(['.', '--targets', 'latest-win-x64', '--output', outputFile]);
+
+  await esbuild.build({
+    entryPoints: [path.resolve(__dirname, '..', 'index.js')],
+    bundle: true,
+    platform: 'node',
+    format: 'cjs',
+    target: 'node26',
+    outfile: bundlePath,
+    logLevel: 'info',
+  });
+
+  fs.writeFileSync(seaConfigPath, JSON.stringify({
+    main: bundlePath,
+    output: outputFile,
+    mainFormat: 'commonjs',
+    disableExperimentalSEAWarning: true,
+    useCodeCache: false,
+    useSnapshot: false,
+  }, null, 2));
+
+  execFileSync(process.execPath, ['--build-sea', seaConfigPath], {stdio: 'inherit'});
 }
 
 main().catch(error => {