Create app.py

app.py

@@ -0,0 +1,56 @@
+import gradio as gr
+from pathlib import Path
+import subprocess, json, tempfile, sys
+
+COMFY_DIR = Path("ComfyUI")
+WORKFLOW_JSON = Path("workflow_api.json")   # we’ll create it later
+
+def patch_workflow(wf, pic_path, face_path, prompt):
+    for node in wf.values():
+        if node.get("_meta", {}).get("title") == "Picture to swap":
+            node["inputs"]["image"] = str(pic_path)
+        if node.get("_meta", {}).get("title") == "Input face":
+            node["inputs"]["image"] = str(face_path)
+        if node["class_type"] == "easy positive":
+            node["inputs"]["text"] = prompt
+    return wf
+
+def run(picture, face, positive):
+    tmpdir = Path(tempfile.mkdtemp())
+    pic_path  = tmpdir / "pic.png"
+    face_path = tmpdir / "face.png"
+    picture.save(pic_path)
+    face.save(face_path)
+
+    with open(WORKFLOW_JSON) as f:
+        wf = json.load(f)
+    wf = patch_workflow(wf, pic_path, face_path, positive)
+    tmp_wf = tmpdir / "wf.json"
+    with open(tmp_wf, "w") as f:
+        json.dump(wf, f)
+
+    subprocess.run([
+        sys.executable, "ComfyUI/main.py",
+        "--disable-auto-launch",
+        "--input", str(tmpdir),
+        "--output", str(tmpdir),
+        "--workflow", str(tmp_wf)
+    ], cwd=COMFY_DIR, check=True)
+
+    out = list(tmpdir.glob("*.png"))
+    if not out:
+        raise RuntimeError("No output image")
+    return out[0]
+
+demo = gr.Interface(
+    fn=run,
+    inputs=[
+        gr.Image(type="pil", label="Picture to swap"),
+        gr.Image(type="pil", label="Face input"),
+        gr.Textbox(label="Positive prompt", lines=3,
+                   placeholder="portrait of a woman, detailed face...")
+    ],
+    outputs=gr.Image(type="filepath", label="Swapped"),
+    title="ComfyUI Face Swap"
+)
+demo.queue().launch()