fix: HF build

.huggingface.yml

@@ -1,23 +1,60 @@
+# ============================================
+# Hugging Face Space build configuration
+# Project: PaperShow
+# ============================================
+
 build:
   python_version: "3.10"
   env:
     HF_HUB_ENABLE_HF_TRANSFER: "1"
+
   commands:
-    # ⚙️ 系统依赖：OpenCV 所需
+    # ⚙️ Step 0: 安装系统依赖（OpenCV / Matplotlib / PDF支持）
+    - echo "===== [STEP 0] Installing system dependencies ====="
     - apt-get update && apt-get install -y libgl1 libsm6 libxext6 libxrender-dev && rm -rf /var/lib/apt/lists/*
 
-    # ⚙️ Python 基础准备
-    - pip install --upgrade pip wheel setuptools
-    - pip config set global.timeout 120
+    # ⚙️ Step 1: 升级 pip 基础环境
+    - echo "===== [STEP 1] Upgrading pip / setuptools / wheel ====="
+    - pip install --upgrade pip setuptools wheel
+    - pip config set global.timeout 180
     - pip config set global.index-url https://pypi.org/simple
 
-    # 🚀 核心依赖
-    - echo "Installing core requirements..."
-    - pip install --prefer-binary --timeout 120 -r requirements_core.txt
+    # 🚀 Step 2: 安装核心依赖
+    - echo "===== [STEP 2] Installing core requirements ====="
+    - if [ -f requirements_core.txt ]; then \
+          echo "Found requirements_core.txt ✅"; \
+          pip install --no-cache-dir --prefer-binary -r requirements_core.txt; \
+      else \
+          echo "⚠️ requirements_core.txt not found!"; \
+      fi
+
+    # 💡 Step 3: 安装额外依赖（失败不阻塞）
+    - echo "===== [STEP 3] Installing extra requirements (non-blocking) ====="
+    - if [ -f requirements_extra.txt ]; then \
+          pip install --no-cache-dir --prefer-binary -r requirements_extra.txt || true; \
+      else \
+          echo "⚠️ requirements_extra.txt not found, skipping."; \
+      fi
+
+    # 🔍 Step 4: 显示安装结果
+    - echo "===== [STEP 4] Installed Python packages ====="
+    - pip list | head -n 50
 
-    # 💡 额外依赖（失败不阻塞）
-    - echo "Installing extra requirements..."
-    - pip install --prefer-binary --timeout 120 -r requirements_extra.txt || true
+    # 🧠 Step 5: 验证关键依赖导入（明确打印）
+    - echo "===== [STEP 5] Verifying critical imports ====="
+    - python - <<'PYCODE'
+import sys
+print("Python version:", sys.version)
+try:
+    import torch, transformers
+    print("✅ torch OK (version)", torch.__version__)
+    print("✅ transformers OK (version)", transformers.__version__)
+except Exception as e:
+    print("❌ Dependency import failed:", e)
+    sys.exit(1)
+    
+PYCODE
 
-    # 启动 app
+    # 🚀 Step 6: 启动主应用
+    - echo "===== [STEP 6] Launching app.py ====="
     - python app.py