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Create app.py
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app.py
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import os
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import subprocess
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import gradio as gr
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# 程序根目录
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BASE_DIR = os.path.dirname(__file__)
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# 可执行文件路径:app.py 与 PptxToJpgZip 同目录
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BINARY_PATH = os.path.join(BASE_DIR, "PptxToJpgZip")
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# 启动时确保二进制有执行权限(在 Hugging Face Spaces 里无法手动 chmod)
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try:
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os.chmod(BINARY_PATH, 0o755)
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except Exception as e:
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# 如果权限设置失败,也无需中断,只要后续能调用即可
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print(f"⚠️ 警告:设置执行权限失败:{e}")
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def convert_pptx_to_zip(pptx_file):
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"""
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调用外部 PptxToJpgZip,可执行文件将上传的 PPTX 转为 JPG 并打包 ZIP。
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pptx_file.name 是 Gradio 上传后的临时文件路径。
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"""
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src_path = pptx_file.name # Gradio 会在后台保存上传文件,并提供 .name 属性
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# 调用外部程序:PptxToJpgZip <输入文件.pptx>
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proc = subprocess.run(
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[BINARY_PATH, src_path],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE
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)
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if proc.returncode != 0:
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stderr = proc.stderr.decode("utf-8", errors="ignore")
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raise RuntimeError(f"转换失败:\n{stderr}")
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# 可执行程序会在同目录生成 <原文件名>_images.zip
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zip_path = os.path.splitext(src_path)[0] + "_images.zip"
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if not os.path.isfile(zip_path):
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raise FileNotFoundError(f"转换完成,但未找到输出 ZIP:{zip_path}")
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return zip_path # Gradio 会自动为此路径生成下载链接
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# —— 构建 Gradio 界面 ——
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with gr.Blocks(title="PPTX→JPG→ZIP 转换器") as demo:
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gr.Markdown("""
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# PPTX→JPG→ZIP
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上传一个 `.pptx` 文件,后台调用 `PptxToJpgZip` 可执行程序,
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将每页幻灯片导出为高质量 JPG,并打包成 ZIP,最后提供下载。
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""")
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with gr.Row():
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pptx_in = gr.File(label="上传 PPTX (.pptx)", file_types=[".pptx"])
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btn = gr.Button("开始转换")
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zip_out = gr.File(label="下载 ZIP 文件")
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btn.click(fn=convert_pptx_to_zip, inputs=pptx_in, outputs=zip_out)
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if __name__ == "__main__":
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demo.launch(
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server_name="0.0.0.0",
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server_port=7860,
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share=False
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)
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