SillyTavern/public/scripts/extensions/cfg/util.js
kingbri 92e6c6a998 CFG: Use ST prompt builder for negatives
Make the generate function build a negative prompt in addition to the
normal one. This allows for nonconflicting insertion with other extension
prompts and World Info.

Signed-off-by: kingbri <bdashore3@proton.me>
2023-08-20 00:44:39 -04:00

76 lines
3.1 KiB
JavaScript

import { chat_metadata, substituteParams, this_chid } from "../../../script.js";
import { extension_settings, getContext } from "../../extensions.js"
import { selected_group } from "../../group-chats.js";
import { getCharaFilename } from "../../utils.js";
export const cfgType = {
chat: 0,
chara: 1,
global: 2
}
export const metadataKeys = {
guidance_scale: "cfg_guidance_scale",
negative_prompt: "cfg_negative_prompt",
negative_combine: "cfg_negative_combine",
groupchat_individual_chars: "cfg_groupchat_individual_chars",
negative_insertion_depth: "cfg_negative_insertion_depth",
negative_separator: "cfg_negative_separator"
}
// Gets the CFG guidance scale
// If the guidance scale is 1, ignore the CFG negative prompt since it won't be used anyways
export function getGuidanceScale() {
const charaCfg = extension_settings.cfg.chara?.find((e) => e.name === getCharaFilename(this_chid));
const chatGuidanceScale = chat_metadata[metadataKeys.guidance_scale];
const groupchatCharOverride = chat_metadata[metadataKeys.groupchat_individual_chars] ?? false;
if (chatGuidanceScale && chatGuidanceScale !== 1 && !groupchatCharOverride) {
return {
type: cfgType.chat,
value: chatGuidanceScale
};
}
if ((!selected_group && charaCfg || groupchatCharOverride) && charaCfg?.guidance_scale !== 1) {
return {
type: cfgType.chara,
value: charaCfg.guidance_scale
};
}
return {
type: cfgType.global,
value: extension_settings.cfg.global.guidance_scale
};
}
// Gets the CFG prompt. Currently only gets the negative prompt
export function getCfgPrompt(guidanceScale) {
let splitNegativePrompt = [];
const chatNegativeCombine = chat_metadata[metadataKeys.negative_combine] ?? [];
if (guidanceScale.type === cfgType.chat || chatNegativeCombine.includes(cfgType.chat)) {
splitNegativePrompt.unshift(substituteParams(chat_metadata[metadataKeys.negative_prompt])?.trim());
}
const charaCfg = extension_settings.cfg.chara?.find((e) => e.name === getCharaFilename(this_chid));
if (guidanceScale.type === cfgType.chara || chatNegativeCombine.includes(cfgType.chara)) {
splitNegativePrompt.unshift(substituteParams(charaCfg.negative_prompt)?.trim())
}
if (guidanceScale.type === cfgType.global || chatNegativeCombine.includes(cfgType.global)) {
splitNegativePrompt.unshift(substituteParams(extension_settings.cfg.global.negative_prompt)?.trim());
}
// This line is a bit hacky with a JSON.stringify and JSON.parse. Fix this if possible.
const negativeSeparator = JSON.parse(chat_metadata[metadataKeys.negative_separator] || JSON.stringify("\n")) ?? "\n";
const combinedNegatives = splitNegativePrompt.filter((e) => e.length > 0).join(negativeSeparator);
const insertionDepth = chat_metadata[metadataKeys.negative_insertion_depth] ?? 1;
console.log(`Setting CFG with guidance scale: ${guidanceScale.value}, negatives: ${combinedNegatives}`);
return {
value: combinedNegatives,
depth: insertionDepth
};
}