automatic/modules/styles.py

132 lines
5.2 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 json
import shutil
import typing
from installer import log
from modules import paths
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
extra: str = ""
def merge_prompts(style_prompt: str, prompt: str) -> str:
if "{prompt}" in style_prompt:
res = style_prompt.replace("{prompt}", prompt)
else:
original_prompt = prompt.strip()
style_prompt = style_prompt.strip()
parts = filter(None, (original_prompt, style_prompt))
if original_prompt.endswith(","):
res = " ".join(parts)
else:
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, opts):
self.no_style = PromptStyle("None", "", "")
self.styles = {}
self.path = opts.styles_dir
if os.path.isfile(opts.styles_dir):
legacy_file = opts.styles_dir
self.load_csv(legacy_file)
opts.styles_dir = os.path.join(paths.models_path, "styles")
self.path = opts.styles_dir
self.mkdir()
self.save_styles(opts.styles_dir, verbose=True)
log.debug(f'Migrated styles: file={legacy_file} folder={self.path}')
self.mkdir()
self.reload()
def mkdir(self):
if not os.path.isdir(self.path):
os.makedirs(self.path, exist_ok=True)
log.debug(f'Created styles: folder={self.path}')
def reload(self):
self.styles.clear()
for fn in os.listdir(self.path):
if not fn.endswith(".json"):
continue
with open(os.path.join(self.path, fn), 'r', encoding='utf-8') as f:
try:
style = json.load(f)
self.styles[style["name"]] = PromptStyle(style["name"], style["prompt"], style["negative"], style["extra"])
except Exception as e:
log.error(f'Failed to load style: file={fn} error={e}')
log.debug(f'Loaded styles: folder={self.path} items={len(self.styles.keys())}')
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, verbose=False):
for name in list(self.styles):
style = {
"name": name,
"prompt": self.styles[name].prompt,
"negative": self.styles[name].negative_prompt,
"extra": "",
}
fn = os.path.join(path, name + ".json")
try:
with open(fn, 'w', encoding='utf-8') as f:
json.dump(style, f, indent=2)
if verbose:
log.debug(f'Saved style: name={name} file={fn}')
except Exception as e:
log.error(f'Failed to save style: name={name} file={path} error={e}')
log.debug(f'Saved styles: {path} {len(self.styles.keys())}')
def load_csv(self, legacy_file):
with open(legacy_file, "r", encoding="utf-8-sig", newline='') as file:
reader = csv.DictReader(file, skipinitialspace=True)
for row in reader:
try:
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)
except Exception:
log.error(f'Styles error: file={legacy_file} row={row}')
log.debug(f'Loaded legacy styles: file={legacy_file} items={len(self.styles.keys())}')
def save_csv(self, path: str) -> None:
import tempfile
basedir = os.path.dirname(path)
if basedir is not None and len(basedir) > 0:
os.makedirs(basedir, exist_ok=True)
fd, temp_path = tempfile.mkstemp(".csv")
with os.fdopen(fd, "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())
log.debug(f'Saved legacy styles: {path} {len(self.styles.keys())}')
shutil.move(temp_path, path)