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Allow use of mutiple styles csv files

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* https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/14122
Fix edge case where style text has multiple {prompt} placeholders
* https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/14005
This commit is contained in:
Charlie Joynt 2023-11-27 11:39:50 +00:00
parent f0f100e67b
commit 26a0c29587
1 changed files with 170 additions and 31 deletions
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201
modules/styles.py
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@ -1,4 +1,5 @@
import csv
import fnmatch
import os
import os.path
import re
@ -10,6 +11,23 @@ class PromptStyle(typing.NamedTuple):
name: str
prompt: str
negative_prompt: str
path: str = None
def clean_text(text: str) -> str:
"""
Iterating through a list of regular expressions and replacement strings, we
clean up the prompt and style text to make it easier to match against each
other.
"""
re_list = [
("multiple commas", re.compile("(,+\s+)+,?"), ", "),
("multiple spaces", re.compile("\s{2,}"), " "),
]
for _, regex, replace in re_list:
text = regex.sub(replace, text)
return text.strip(", ")
def merge_prompts(style_prompt: str, prompt: str) -> str:
@ -26,41 +44,64 @@ def apply_styles_to_prompt(prompt, styles):
for style in styles:
prompt = merge_prompts(style, prompt)
return prompt
return clean_text(prompt)
re_spaces = re.compile(" +")
def unwrap_style_text_from_prompt(style_text, prompt):
"""
Checks the prompt to see if the style text is wrapped around it. If so,
returns True plus the prompt text without the style text. Otherwise, returns
False with the original prompt.
def extract_style_text_from_prompt(style_text, prompt):
stripped_prompt = re.sub(re_spaces, " ", prompt.strip())
stripped_style_text = re.sub(re_spaces, " ", style_text.strip())
Note that the "cleaned" version of the style text is only used for matching
purposes here. It isn't returned; the original style text is not modified.
"""
stripped_prompt = clean_text(prompt)
stripped_style_text = clean_text(style_text)
if "{prompt}" in stripped_style_text:
left, right = stripped_style_text.split("{prompt}", 2)
# Work out whether the prompt is wrapped in the style text. If so, we
# return True and the "inner" prompt text that isn't part of the style.
try:
left, right = stripped_style_text.split("{prompt}", 2)
except ValueError as e:
# If the style text has multple "{prompt}"s, we can't split it into
# two parts. This is an error, but we can't do anything about it.
print(f"Unable to compare style text to prompt:\n{style_text}")
print(f"Error: {e}")
return False, prompt
if stripped_prompt.startswith(left) and stripped_prompt.endswith(right):
prompt = stripped_prompt[len(left):len(stripped_prompt)-len(right)]
prompt = stripped_prompt[len(left) : len(stripped_prompt) - len(right)]
return True, prompt
else:
# Work out whether the given prompt ends with the style text. If so, we
# return True and the prompt text up to where the style text starts.
if stripped_prompt.endswith(stripped_style_text):
prompt = stripped_prompt[:len(stripped_prompt)-len(stripped_style_text)]
if prompt.endswith(', '):
prompt = stripped_prompt[: len(stripped_prompt) - len(stripped_style_text)]
if prompt.endswith(", "):
prompt = prompt[:-2]
return True, prompt
return False, prompt
def extract_style_from_prompts(style: PromptStyle, prompt, negative_prompt):
def extract_original_prompts(style: PromptStyle, prompt, negative_prompt):
"""
Takes a style and compares it to the prompt and negative prompt. If the style
matches, returns True plus the prompt and negative prompt with the style text
removed. Otherwise, returns False with the original prompt and negative prompt.
"""
if not style.prompt and not style.negative_prompt:
return False, prompt, negative_prompt
match_positive, extracted_positive = extract_style_text_from_prompt(style.prompt, prompt)
match_positive, extracted_positive = unwrap_style_text_from_prompt(
style.prompt, prompt
)
if not match_positive:
return False, prompt, negative_prompt
match_negative, extracted_negative = extract_style_text_from_prompt(style.negative_prompt, negative_prompt)
match_negative, extracted_negative = unwrap_style_text_from_prompt(
style.negative_prompt, negative_prompt
)
if not match_negative:
return False, prompt, negative_prompt
@ -69,25 +110,88 @@ def extract_style_from_prompts(style: PromptStyle, prompt, negative_prompt):
class StyleDatabase:
def __init__(self, path: str):
self.no_style = PromptStyle("None", "", "")
self.no_style = PromptStyle("None", "", "", None)
self.styles = {}
self.path = path
folder, file = os.path.split(self.path)
self.default_file = file.split("*")[0] + ".csv"
if self.default_file == ".csv":
self.default_file = "styles.csv"
self.default_path = os.path.join(folder, self.default_file)
self.prompt_fields = [field for field in PromptStyle._fields if field != "path"]
self.reload()
def reload(self):
"""
Clears the style database and reloads the styles from the CSV file(s)
matching the path used to initialize the database.
"""
self.styles.clear()
if not os.path.exists(self.path):
return
path, filename = os.path.split(self.path)
with open(self.path, "r", encoding="utf-8-sig", newline='') as file:
if "*" in filename:
fileglob = filename.split("*")[0] + "*.csv"
filelist = []
for file in os.listdir(path):
if fnmatch.fnmatch(file, fileglob):
filelist.append(file)
# Add a visible divider to the style list
half_len = round(len(file) / 2)
divider = f"{'-' * (20 - half_len)} {file.upper()}"
divider = f"{divider} {'-' * (40 - len(divider))}"
self.styles[divider] = PromptStyle(
f"{divider}", None, None, "do_not_save"
)
# Add styles from this CSV file
self.load_from_csv(os.path.join(path, file))
if len(filelist) == 0:
print(f"No styles found in {path} matching {fileglob}")
return
elif not os.path.exists(self.path):
print(f"Style database not found: {self.path}")
return
else:
self.load_from_csv(self.path)
def load_from_csv(self, path: str):
with open(path, "r", encoding="utf-8-sig", newline="") as file:
reader = csv.DictReader(file, skipinitialspace=True)
for row in reader:
# Ignore empty rows or rows starting with a comment
if not row or row["name"].startswith("#"):
continue
# Support loading old CSV format with "name, text"-columns
prompt = row["prompt"] if "prompt" in row else row["text"]
negative_prompt = row.get("negative_prompt", "")
self.styles[row["name"]] = PromptStyle(row["name"], prompt, negative_prompt)
# Add style to database
self.styles[row["name"]] = PromptStyle(
row["name"], prompt, negative_prompt, path
)
def get_style_paths(self) -> list():
"""
Returns a list of all distinct paths, including the default path, of
files that styles are loaded from."""
# Update any styles without a path to the default path
for style in list(self.styles.values()):
if not style.path:
self.styles[style.name] = style._replace(path=self.default_path)
# Create a list of all distinct paths, including the default path
style_paths = set()
style_paths.add(self.default_path)
for _, style in self.styles.items():
if style.path:
style_paths.add(style.path)
# Remove any paths for styles that are just list dividers
style_paths.remove("do_not_save")
return list(style_paths)
def get_style_prompts(self, styles):
return [self.styles.get(x, self.no_style).prompt for x in styles]
@ -96,20 +200,53 @@ class StyleDatabase:
return [self.styles.get(x, self.no_style).negative_prompt for x in styles]
def apply_styles_to_prompt(self, prompt, styles):
return apply_styles_to_prompt(prompt, [self.styles.get(x, self.no_style).prompt for x in styles])
return apply_styles_to_prompt(
prompt, [self.styles.get(x, self.no_style).prompt for x in styles]
)
def apply_negative_styles_to_prompt(self, prompt, styles):
return apply_styles_to_prompt(prompt, [self.styles.get(x, self.no_style).negative_prompt for x in styles])
return apply_styles_to_prompt(
prompt, [self.styles.get(x, self.no_style).negative_prompt for x in styles]
)
def save_styles(self, path: str) -> None:
# Always keep a backup file around
if os.path.exists(path):
shutil.copy(path, f"{path}.bak")
def save_styles(self, path: str = None) -> None:
# The path argument is deprecated, but kept for backwards compatibility
_ = path
with open(path, "w", encoding="utf-8-sig", newline='') as file:
writer = csv.DictWriter(file, fieldnames=PromptStyle._fields)
writer.writeheader()
writer.writerows(style._asdict() for k, style in self.styles.items())
# Update any styles without a path to the default path
for style in list(self.styles.values()):
if not style.path:
self.styles[style.name] = style._replace(path=self.default_path)
# Create a list of all distinct paths, including the default path
style_paths = set()
style_paths.add(self.default_path)
for _, style in self.styles.items():
if style.path:
style_paths.add(style.path)
# Remove any paths for styles that are just list dividers
style_paths.remove("do_not_save")
csv_names = [os.path.split(path)[1].lower() for path in style_paths]
for style_path in style_paths:
# Always keep a backup file around
if os.path.exists(style_path):
shutil.copy(style_path, f"{style_path}.bak")
# Write the styles to the CSV file
with open(style_path, "w", encoding="utf-8-sig", newline="") as file:
writer = csv.DictWriter(file, fieldnames=self.prompt_fields)
writer.writeheader()
for style in (s for s in self.styles.values() if s.path == style_path):
# Skip style list dividers, e.g. "STYLES.CSV"
if style.name.lower().strip("# ") in csv_names:
continue
# Write style fields, ignoring the path field
writer.writerow(
{k: v for k, v in style._asdict().items() if k != "path"}
)
def extract_styles_from_prompt(self, prompt, negative_prompt):
extracted = []
@ -120,7 +257,9 @@ class StyleDatabase:
found_style = None
for style in applicable_styles:
is_match, new_prompt, new_neg_prompt = extract_style_from_prompts(style, prompt, negative_prompt)
is_match, new_prompt, new_neg_prompt = extract_original_prompts(
style, prompt, negative_prompt
)
if is_match:
found_style = style
prompt = new_prompt