add external script to run demo on a folder

gen_sdxl_turbo.py

@@ -0,0 +1,26 @@
+from app import BZHStableSignatureDemo
+import sys
+from pathlib import Path
+
+def generate_all(captions, outdir='out'):
+    backend = BZHStableSignatureDemo()
+    decoders = list(backend.decoders.keys())
+    outdir = Path(outdir)
+    outdir.mkdir(parents=True, exist_ok=True)
+
+    for decoder in decoders:
+        # TODO: optimize by patching only once..
+        # TEMP
+        if decoder != 'medium':
+            continue
+        outdirdec = Path(outdir) / Path(decoder)
+        outdirdec.mkdir(parents=True, exist_ok = True)
+        for i, prompt in enumerate(captions):
+            img = backend.generate(decoder, 0, prompt)
+            img.save(outdirdec / Path('%04d.png' % i), format='PNG')
+
+if __name__ == '__main__':
+    infile = sys.argv[1]
+    outdir = sys.argv[2]
+    with open(infile) as f:
+        generate_all([line.strip() for line in f.readlines()], outdir=outdir)