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Update the Dependency Handling Scheme

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This commit is contained in:
马一丁
2025-11-19 13:37:59 +08:00
parent be1fe539b5
commit 69ba0f22e3
4 changed files with 100 additions and 14 deletions
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ReportEngine/flask_interface.py
+6 -4
View File
@@ -1047,8 +1047,9 @@ def export_pdf(task_id: str):
if not pango_available:
return jsonify({
'success': False,
'error': 'PDF 导出功能不可用：缺少 Pango 系统依赖',
'details': '请查看 requirements.txt 文件中的 "===== PDF生成 =====" 部分了解如何安装 Pango',
'error': 'PDF 导出功能不可用：缺少系统依赖',
'details': '请查看根目录 README.md 第393行「PDF 导出依赖」部分了解如何安装依赖',
'help_url': 'https://github.com/666ghj/BettaFish#3-安装-pdf-导出所需系统依赖可选',
'system_message': pango_message
}), 503
@@ -1135,8 +1136,9 @@ def export_pdf_from_ir():
if not pango_available:
return jsonify({
'success': False,
'error': 'PDF 导出功能不可用：缺少 Pango 系统依赖',
'details': '请查看 requirements.txt 文件中的 "===== PDF生成 =====" 部分了解如何安装 Pango',
'error': 'PDF 导出功能不可用：缺少系统依赖',
'details': '请查看根目录 README.md 第393行「PDF 导出依赖」部分了解如何安装依赖',
'help_url': 'https://github.com/666ghj/BettaFish#3-安装-pdf-导出所需系统依赖可选',
'system_message': pango_message
}), 503
ReportEngine/renderers/pdf_renderer.py
+12 -2
View File
@@ -16,9 +16,19 @@ try:
from weasyprint import HTML, CSS
from weasyprint.text.fonts import FontConfiguration
WEASYPRINT_AVAILABLE = True
except ImportError:
except (ImportError, OSError) as e:
WEASYPRINT_AVAILABLE = False
logger.warning("WeasyPrint未安装，PDF导出功能将不可用")
# 判断错误类型以提供更友好的提示
if isinstance(e, OSError):
logger.warning(
"PDF 导出依赖缺失（系统库未安装或环境变量未设置），"
"PDF 导出功能将不可用。其他功能不受影响。"
)
else:
logger.warning("WeasyPrint未安装，PDF导出功能将不可用")
except Exception as e:
WEASYPRINT_AVAILABLE = False
logger.warning(f"WeasyPrint 加载失败: {e}，PDF导出功能将不可用")
from .html_renderer import HTMLRenderer
from .pdf_layout_optimizer import PDFLayoutOptimizer, PDFLayoutConfig
ReportEngine/utils/dependency_check.py
+60 -4
View File
@@ -3,9 +3,57 @@
用于检测 PDF 生成所需的系统依赖
"""
import sys
import platform
from loguru import logger
def _get_platform_specific_instructions():
"""
获取针对当前平台的安装说明
Returns:
str: 平台特定的安装说明
"""
system = platform.system()
if system == "Darwin": # macOS
return (
"║ 🍎 macOS 系统解决方案： ║\n"
"║ ║\n"
"║ 1. 安装系统依赖： ║\n"
"║ brew install pango gdk-pixbuf libffi ║\n"
"║ ║\n"
"║ 2. 设置环境变量（重要！）： ║\n"
"║ export DYLD_LIBRARY_PATH=/opt/homebrew/lib:$DYLD_LIBRARY_PATH ║\n"
"║ ║\n"
"║ 3. 永久生效（推荐）： ║\n"
"║ echo 'export DYLD_LIBRARY_PATH=/opt/homebrew/lib:$DYLD_LIBRARY_PATH' >> ~/.zshrc ║\n"
"║ source ~/.zshrc ║\n"
)
elif system == "Linux":
return (
"║ 🐧 Linux 系统解决方案： ║\n"
"║ ║\n"
"║ Ubuntu/Debian: ║\n"
"║ sudo apt-get install libpango-1.0-0 libpangoft2-1.0-0 \\ ║\n"
"║ libgdk-pixbuf2.0-0 libffi-dev libcairo2 ║\n"
"║ ║\n"
"║ CentOS/RHEL: ║\n"
"║ sudo yum install pango gdk-pixbuf2 libffi-devel cairo ║\n"
)
elif system == "Windows":
return (
"║ 🪟 Windows 系统解决方案： ║\n"
"║ ║\n"
"║ 下载并安装 GTK3 Runtime： ║\n"
"║ https://github.com/tschoonj/GTK-for-Windows-Runtime-Environment-Installer/releases ║\n"
)
else:
return (
"║ 请查看 README.md 了解您系统的安装方法 ║\n"
)
def check_pango_available():
"""
检测 Pango 库是否可用
@@ -25,19 +73,27 @@ def check_pango_available():
except OSError as e:
# Pango 库未安装或无法加载
error_msg = str(e)
if 'pango' in error_msg.lower():
platform_instructions = _get_platform_specific_instructions()
if 'gobject' in error_msg.lower() or 'pango' in error_msg.lower() or 'gdk' in error_msg.lower():
return False, (
"╔════════════════════════════════════════════════════════════════╗\n"
"║ ⚠️ Pango 依赖未安装或无法加载 ║\n"
"║ ⚠️ PDF 导出依赖缺失 ║\n"
"║ ║\n"
"║ 📄 PDF 导出功能将不可用（其他功能不受影响） ║\n"
"║ 📖 详细安装说明请查看：根目录下的 README.md ║\n"
"║ ║\n"
f"{platform_instructions}"
"║ ║\n"
"║ 📖 完整文档：根目录 README.md 第393行「PDF 导出依赖」 ║\n"
"╚════════════════════════════════════════════════════════════════╝"
)
return False, f"⚠ PDF 依赖加载失败: {error_msg}"
except ImportError as e:
# weasyprint 未安装
return False, f"⚠ WeasyPrint 未安装: {e}"
return False, (
"⚠ WeasyPrint 未安装\n"
"解决方法: pip install weasyprint"
)
except Exception as e:
# 其他未知错误
return False, f"⚠ PDF 依赖检测失败: {e}"