CI check comments of cheanged Python files

### What problem does this PR solve?

### Type of change

- [x] Documentation Update

.github/workflows/tests.yml

@@ -95,6 +95,38 @@ jobs:
           version: ">=0.11.x"
           args: "check"
 
+      - name: Check comments of changed Python files
+        if: ${{ !cancelled() && !failure() }}
+        run: |
+          if [[ ${{ github.event_name }} == 'pull_request_target' ]]; then
+            CHANGED_FILES=$(git diff --name-only ${{ github.event.pull_request.base.sha }}...${{ github.event.pull_request.head.sha }} \
+              | grep -E '\.(py)$' || true)
+
+            if [ -n "$CHANGED_FILES" ]; then
+              echo "Check comments of changed Python files with check_comment_ascii.py"
+
+              readarray -t files <<< "$CHANGED_FILES"
+              HAS_ERROR=0
+
+              for file in "${files[@]}"; do
+                if [ -f "$file" ]; then
+                  if python3 check_comment_ascii.py $file"; then
+                    echo "✅ $file"
+                  else
+                    echo "❌ $file"
+                    HAS_ERROR=1
+                  fi
+                fi
+              done
+
+              if [ $HAS_ERROR -ne 0 ]; then
+                exit 1
+              fi
+            else
+              echo "No Python files changed"
+            fi
+          fi
+
       - name: Build ragflow:nightly
         run: |
           RUNNER_WORKSPACE_PREFIX=${RUNNER_WORKSPACE_PREFIX:-${HOME}}

check_comment_ascii.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+import sys
+import tokenize
+import ast
+import pathlib
+import re
+
+ASCII = re.compile(r"^[ -~]*\Z")  # Only printable ASCII
+
+
+def check(src: str, name: str) -> int:
+    """
+    I'm a docstring
+    """
+    ok = 1
+    # A common comment begins with `#`
+    with tokenize.open(src) as fp:
+        for tk in tokenize.generate_tokens(fp.readline):
+            if tk.type == tokenize.COMMENT and not ASCII.fullmatch(tk.string):
+                print(f"{name}:{tk.start[0]}: non-ASCII comment: {tk.string}")
+                ok = 0
+    # A docstring begins and ends with `'''`
+    for node in ast.walk(ast.parse(pathlib.Path(src).read_text(), filename=name)):
+        if isinstance(node, (ast.FunctionDef, ast.ClassDef, ast.Module)):
+            if (doc := ast.get_docstring(node)) and not ASCII.fullmatch(doc):
+                print(f"{name}:{node.lineno}: non-ASCII docstring: {doc}")
+                ok = 0
+    return ok
+
+
+if __name__ == "__main__":
+    status = 0
+    for file in sys.argv[1:]:
+        if not check(file, file):
+            status = 1
+    sys.exit(status)

docs/guides/dataset/add_data_source/_category_.json

@@ -0,0 +1,8 @@
+{
+  "label": "Add data source",
+  "position": 18,
+  "link": {
+    "type": "generated-index",
+    "description": "Add various data sources"
+  }
+}

docs/guides/dataset/add_data_source/add_google_drive.md

@@ -0,0 +1,137 @@
+---
+sidebar_position: 3
+slug: /add_google_drive
+---
+
+# Add Google Drive
+
+## 1. Create a Google Cloud Project
+
+You can either create a dedicated project for RAGFlow or use an existing
+Google Cloud external project.
+
+**Steps:** 
+1. Open the project creation page\
+`https://console.cloud.google.com/projectcreate` 
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image1.jpeg?raw=true)
+2. Select **External** as the Audience
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image2.png?raw=true)
+3. Click **Create**
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image3.jpeg?raw=true)
+
+------------------------------------------------------------------------
+
+## 2. Configure OAuth Consent Screen
+
+1.  Go to **APIs & Services → OAuth consent screen**
+2.  Ensure **User Type = External**
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image4.jpeg?raw=true)
+3.  Add your test users under **Test Users** by entering email addresses
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image5.jpeg?raw=true)
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image6.jpeg?raw=true)
+
+------------------------------------------------------------------------
+
+## 3. Create OAuth Client Credentials
+
+1.  Navigate to:\
+    `https://console.cloud.google.com/auth/clients`
+2.  Create a **Web Application**
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image7.png?raw=true)
+3.  Enter a name for the client
+4.  Add the following **Authorized Redirect URIs**:
+
+```
+http://localhost:9380/v1/connector/google-drive/oauth/web/callback
+```
+
+### If using Docker deployment:
+
+**Authorized JavaScript origin:**
+```
+http://localhost:80
+```
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image8.png?raw=true)
+### If running from source:
+**Authorized JavaScript origin:**
+```
+http://localhost:9222
+```
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image9.png?raw=true)
+5.  After saving, click **Download JSON**. This file will later be
+    uploaded into RAGFlow.
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image10.png?raw=true)
+
+------------------------------------------------------------------------
+
+## 4. Add Scopes
+
+1.  Open **Data Access → Add or remove scopes**
+
+2.  Paste and add the following entries:
+
+```
+https://www.googleapis.com/auth/drive.readonly
+https://www.googleapis.com/auth/drive.metadata.readonly
+https://www.googleapis.com/auth/admin.directory.group.readonly
+https://www.googleapis.com/auth/admin.directory.user.readonly
+```
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image11.jpeg?raw=true)
+3.  Update and Save changes
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image12.jpeg?raw=true)
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image13.jpeg?raw=true)
+
+------------------------------------------------------------------------
+
+## 5. Enable Required APIs
+Navigate to the Google API Library:\
+`https://console.cloud.google.com/apis/library`
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image14.png?raw=true)
+
+Enable the following APIs:
+
+- Google Drive API 
+- Admin SDK API 
+- Google Sheets API 
+- Google Docs API
+  
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image15.png?raw=true)
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image16.png?raw=true)
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image17.png?raw=true)
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image18.png?raw=true)
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image19.png?raw=true)
+
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image21.png?raw=true)
+
+------------------------------------------------------------------------
+
+## 6. Add Google Drive As a Data Source in RAGFlow
+
+1.  Go to **Data Sources** inside RAGFlow
+2.  Select **Google Drive**
+3.  Upload the previously downloaded JSON credentials
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image22.jpeg?raw=true)
+4.  Enter the shared Google Drive folder link (https://drive.google.com/drive), such as:
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image23.png?raw=true)
+
+5.  Click **Authorize with Google**
+A browser window will appear. 
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image25.jpeg?raw=true)
+Click: - **Continue** - **Select All → Continue** - Authorization should
+succeed - Select **OK** to add the data source
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image26.jpeg?raw=true)
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image27.jpeg?raw=true)
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image28.png?raw=true)
+![placeholder-image](https://github.com/infiniflow/ragflow-docs/blob/040e4acd4c1eac6dc73dc44e934a6518de78d097/images/google_drive/image29.png?raw=true)
+
+

docs/guides/dataset/best_practices/_category_.json

@@ -1,6 +1,6 @@
 {
   "label": "Best practices",
-  "position": 11,
+  "position": 19,
   "link": {
     "type": "generated-index",
     "description": "Best practices on configuring a dataset."

docs/guides/manage_users_and_services.md

@@ -64,7 +64,10 @@ The Admin CLI and Admin Service form a client-server architectural suite for RAG
     
     - -p: RAGFlow admin server port
 
+## Default administrative account
 
+- Username: admin@ragflow.io
+- Password: admin
 
 ## Supported Commands