add support for prompts, negative prompts, and sampler-by-name in text file script

scripts/prompts_from_file.py

@@ -9,6 +9,7 @@ import shlex
 import modules.scripts as scripts
 import gradio as gr
 
+from modules import sd_samplers
 from modules.processing import Processed, process_images
 from PIL import Image
 from modules.shared import opts, cmd_opts, state
@@ -44,6 +45,7 @@ prompt_tags = {
     "seed_resize_from_h": process_int_tag,
     "seed_resize_from_w": process_int_tag,
     "sampler_index": process_int_tag,
+    "sampler_name": process_string_tag,
     "batch_size": process_int_tag,
     "n_iter": process_int_tag,
     "steps": process_int_tag,
@@ -66,14 +68,28 @@ def cmdargs(line):
         arg = args[pos]
 
         assert arg.startswith("--"), f'must start with "--": {arg}'
+        assert pos+1 < len(args), f'missing argument for command line option {arg}'
+
         tag = arg[2:]
 
+        if tag == "prompt" or tag == "negative_prompt":
+            pos += 1
+            prompt = args[pos]
+            pos += 1
+            while pos < len(args) and not args[pos].startswith("--"):
+                prompt += " "
+                prompt += args[pos]
+                pos += 1
+            res[tag] = prompt
+            continue
+
+
         func = prompt_tags.get(tag, None)
         assert func, f'unknown commandline option: {arg}'
 
-        assert pos+1 < len(args), f'missing argument for command line option {arg}'
-
         val = args[pos+1]
+        if tag == "sampler_name":
+            val = sd_samplers.samplers_map.get(val.lower(), None)
 
         res[tag] = func(val)