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"""Utilities for Power Prompt nodes."""
import re
import os
import folder_paths
from .log import log_node_warn, log_node_info
def get_and_strip_loras(prompt, silent=False, log_node="Power Prompt"):
"""Collects and strips lora tags from a prompt."""
pattern = '<lora:([^:>]*?)(?::(-?\d*(?:\.\d*)?))?>'
lora_paths = folder_paths.get_filename_list('loras')
matches = re.findall(pattern, prompt)
loras = []
unfound_loras = []
skipped_loras = []
for match in matches:
tag_path = match[0]
strength = float(match[1] if len(match) > 1 and len(match[1]) else 1.0)
if strength == 0:
if not silent:
log_node_info(log_node, f'Skipping "{tag_path}" with strength of zero')
skipped_loras.append({'lora': tag_path, 'strength': strength})
continue
lora_path = get_lora_by_filename(tag_path, lora_paths, log_node=None if silent else log_node)
if lora_path is None:
unfound_loras.append({'lora': tag_path, 'strength': strength})
continue
loras.append({'lora': lora_path, 'strength': strength})
return (re.sub(pattern, '', prompt), loras, skipped_loras, unfound_loras)
# pylint: disable = too-many-return-statements, too-many-branches
def get_lora_by_filename(file_path, lora_paths=None, log_node=None):
"""Returns a lora by filename, looking for exactl paths and then fuzzier matching."""
lora_paths = lora_paths if lora_paths is not None else folder_paths.get_filename_list('loras')
if file_path in lora_paths:
return file_path
lora_paths_no_ext = [os.path.splitext(x)[0] for x in lora_paths]
# See if we've entered the exact path, but without the extension
if file_path in lora_paths_no_ext:
found = lora_paths[lora_paths_no_ext.index(file_path)]
return found
# Same check, but ensure file_path is without extension.
file_path_force_no_ext = os.path.splitext(file_path)[0]
if file_path_force_no_ext in lora_paths_no_ext:
found = lora_paths[lora_paths_no_ext.index(file_path_force_no_ext)]
return found
# See if we passed just the name, without paths.
lora_filenames_only = [os.path.basename(x) for x in lora_paths]
if file_path in lora_filenames_only:
found = lora_paths[lora_filenames_only.index(file_path)]
if log_node is not None:
log_node_info(log_node, f'Matched Lora input "{file_path}" to "{found}".')
return found
# Same, but force the input to be without paths
file_path_force_filename = os.path.basename(file_path)
lora_filenames_only = [os.path.basename(x) for x in lora_paths]
if file_path_force_filename in lora_filenames_only:
found = lora_paths[lora_filenames_only.index(file_path_force_filename)]
if log_node is not None:
log_node_info(log_node, f'Matched Lora input "{file_path}" to "{found}".')
return found
# Check the filenames and without extension.
lora_filenames_and_no_ext = [os.path.splitext(os.path.basename(x))[0] for x in lora_paths]
if file_path in lora_filenames_and_no_ext:
found = lora_paths[lora_filenames_and_no_ext.index(file_path)]
if log_node is not None:
log_node_info(log_node, f'Matched Lora input "{file_path}" to "{found}".')
return found
# And, one last forcing the input to be the same
file_path_force_filename_and_no_ext = os.path.splitext(os.path.basename(file_path))[0]
if file_path_force_filename_and_no_ext in lora_filenames_and_no_ext:
found = lora_paths[lora_filenames_and_no_ext.index(file_path_force_filename_and_no_ext)]
if log_node is not None:
log_node_info(log_node, f'Matched Lora input "{file_path}" to "{found}".')
return found
# Finally, super fuzzy, we'll just check if the input exists in the path at all.
for index, lora_path in enumerate(lora_paths):
if file_path in lora_path:
found = lora_paths[index]
if log_node is not None:
log_node_warn(log_node, f'Fuzzy-matched Lora input "{file_path}" to "{found}".')
return found
if log_node is not None:
log_node_warn(log_node, f'Lora "{file_path}" not found, skipping.')
return None
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