87 lines
3.1 KiB
Python
87 lines
3.1 KiB
Python
# We need this so Python doesn't complain about the unknown StableDiffusionProcessing-typehint at runtime
|
|
from __future__ import annotations
|
|
|
|
import csv
|
|
import os
|
|
import os.path
|
|
import typing
|
|
import collections.abc as abc
|
|
import tempfile
|
|
import shutil
|
|
|
|
if typing.TYPE_CHECKING:
|
|
# Only import this when code is being type-checked, it doesn't have any effect at runtime
|
|
from .processing import StableDiffusionProcessing
|
|
|
|
|
|
class PromptStyle(typing.NamedTuple):
|
|
name: str
|
|
prompt: str
|
|
negative_prompt: str
|
|
|
|
|
|
def merge_prompts(style_prompt: str, prompt: str) -> str:
|
|
if "{prompt}" in style_prompt:
|
|
res = style_prompt.replace("{prompt}", prompt)
|
|
else:
|
|
parts = filter(None, (prompt.strip(), style_prompt.strip()))
|
|
res = ", ".join(parts)
|
|
|
|
return res
|
|
|
|
|
|
def apply_styles_to_prompt(prompt, styles):
|
|
for style in styles:
|
|
prompt = merge_prompts(style, prompt)
|
|
|
|
return prompt
|
|
|
|
|
|
class StyleDatabase:
|
|
def __init__(self, path: str):
|
|
self.no_style = PromptStyle("None", "", "")
|
|
self.styles = {}
|
|
self.path = path
|
|
|
|
self.reload()
|
|
|
|
def reload(self):
|
|
self.styles.clear()
|
|
|
|
if not os.path.exists(self.path):
|
|
return
|
|
|
|
with open(self.path, "r", encoding="utf-8-sig", newline='') as file:
|
|
reader = csv.DictReader(file)
|
|
for row in reader:
|
|
# 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)
|
|
|
|
def get_style_prompts(self, styles):
|
|
return [self.styles.get(x, self.no_style).prompt for x in styles]
|
|
|
|
def get_negative_style_prompts(self, styles):
|
|
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])
|
|
|
|
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])
|
|
|
|
def save_styles(self, path: str) -> None:
|
|
# Write to temporary file first, so we don't nuke the file if something goes wrong
|
|
fd, temp_path = tempfile.mkstemp(".csv")
|
|
with os.fdopen(fd, "w", encoding="utf-8-sig", newline='') as file:
|
|
# _fields is actually part of the public API: typing.NamedTuple is a replacement for collections.NamedTuple,
|
|
# and collections.NamedTuple has explicit documentation for accessing _fields. Same goes for _asdict()
|
|
writer = csv.DictWriter(file, fieldnames=PromptStyle._fields)
|
|
writer.writeheader()
|
|
writer.writerows(style._asdict() for k, style in self.styles.items())
|
|
|
|
# Always keep a backup file around
|
|
if os.path.exists(path):
|
|
shutil.move(path, path + ".bak")
|
|
shutil.move(temp_path, path)
|