sunnypilot v2026.002.000

version: sunnypilot v2026.002.000 (staging)
date: 2026-07-21T07:44:02
master commit: 2c334ede443d7391d27575af8c854a095ba702a8
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github-actions[bot] committed 2026-07-21 07:44:02 +00:00
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{"version":3,"file":"purify.min.js","sources":["../src/utils.js","../src/tags.js","../src/attrs.js","../src/regexp.js","../src/purify.js"],"sourcesContent":["const {\n entries,\n setPrototypeOf,\n isFrozen,\n getPrototypeOf,\n getOwnPropertyDescriptor,\n} = Object;\n\nlet { freeze, seal, create } = Object; // eslint-disable-line import/no-mutable-exports\nlet { apply, construct } = typeof Reflect !== 'undefined' && Reflect;\n\nif (!freeze) {\n freeze = function (x) {\n return x;\n };\n}\n\nif (!seal) {\n seal = function (x) {\n return x;\n };\n}\n\nif (!apply) {\n apply = function (fun, thisValue, args) {\n return fun.apply(thisValue, args);\n };\n}\n\nif (!construct) {\n construct = function (Func, args) {\n return new Func(...args);\n };\n}\n\nconst arrayForEach = unapply(Array.prototype.forEach);\nconst arrayIndexOf = unapply(Array.prototype.indexOf);\nconst arrayPop = unapply(Array.prototype.pop);\nconst arrayPush = unapply(Array.prototype.push);\nconst arraySlice = unapply(Array.prototype.slice);\n\nconst stringToLowerCase = unapply(String.prototype.toLowerCase);\nconst stringToString = unapply(String.prototype.toString);\nconst stringMatch = unapply(String.prototype.match);\nconst stringReplace = unapply(String.prototype.replace);\nconst stringIndexOf = unapply(String.prototype.indexOf);\nconst stringTrim = unapply(String.prototype.trim);\n\nconst objectHasOwnProperty = unapply(Object.prototype.hasOwnProperty);\n\nconst regExpTest = unapply(RegExp.prototype.test);\n\nconst typeErrorCreate = unconstruct(TypeError);\n\n/**\n * Creates a new function that calls the given function with a specified thisArg and arguments.\n *\n * @param {Function} func - The function to be wrapped and called.\n * @returns {Function} A new function that calls the given function with a specified thisArg and arguments.\n */\nfunction unapply(func) {\n return (thisArg, ...args) => apply(func, thisArg, args);\n}\n\n/**\n * Creates a new function that constructs an instance of the given constructor function with the provided arguments.\n *\n * @param {Function} func - The constructor function to be wrapped and called.\n * @returns {Function} A new function that constructs an instance of the given constructor function with the provided arguments.\n */\nfunction unconstruct(func) {\n return (...args) => construct(func, args);\n}\n\n/**\n * Add properties to a lookup table\n *\n * @param {Object} set - The set to which elements will be added.\n * @param {Array} array - The array containing elements to be added to the set.\n * @param {Function} transformCaseFunc - An optional function to transform the case of each element before adding to the set.\n * @returns {Object} The modified set with added elements.\n */\nfunction addToSet(set, array, transformCaseFunc = stringToLowerCase) {\n if (setPrototypeOf) {\n // Make 'in' and truthy checks like Boolean(set.constructor)\n // independent of any properties defined on Object.prototype.\n // Prevent prototype setters from intercepting set as a this value.\n setPrototypeOf(set, null);\n }\n\n let l = array.length;\n while (l--) {\n let element = array[l];\n if (typeof element === 'string') {\n const lcElement = transformCaseFunc(element);\n if (lcElement !== element) {\n // Config presets (e.g. tags.js, attrs.js) are immutable.\n if (!isFrozen(array)) {\n array[l] = lcElement;\n }\n\n element = lcElement;\n }\n }\n\n set[element] = true;\n }\n\n return set;\n}\n\n/**\n * Clean up an array to harden against CSPP\n *\n * @param {Array} array - The array to be cleaned.\n * @returns {Array} The cleaned version of the array\n */\nfunction cleanArray(array) {\n for (let index = 0; index < array.length; index++) {\n const isPropertyExist = objectHasOwnProperty(array, index);\n\n if (!isPropertyExist) {\n array[index] = null;\n }\n }\n\n return array;\n}\n\n/**\n * Shallow clone an object\n *\n * @param {Object} object - The object to be cloned.\n * @returns {Object} A new object that copies the original.\n */\nfunction clone(object) {\n const newObject = create(null);\n\n for (const [property, value] of entries(object)) {\n const isPropertyExist = objectHasOwnProperty(object, property);\n\n if (isPropertyExist) {\n if (Array.isArray(value)) {\n newObject[property] = cleanArray(value);\n } else if (\n value &&\n typeof value === 'object' &&\n value.constructor === Object\n ) {\n newObject[property] = clone(value);\n } else {\n newObject[property] = value;\n }\n }\n }\n\n return newObject;\n}\n\n/**\n * This method automatically checks if the prop is function or getter and behaves accordingly.\n *\n * @param {Object} object - The object to look up the getter function in its prototype chain.\n * @param {String} prop - The property name for which to find the getter function.\n * @returns {Function} Line truncated
@@ -0,0 +1,97 @@
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.markedHighlight = {}));
})(this, (function (exports) { 'use strict';
function markedHighlight(options) {
if (typeof options === 'function') {
options = {
highlight: options
};
}
if (!options || typeof options.highlight !== 'function') {
throw new Error('Must provide highlight function');
}
if (typeof options.langPrefix !== 'string') {
options.langPrefix = 'language-';
}
return {
async: !!options.async,
walkTokens(token) {
if (token.type !== 'code') {
return;
}
const lang = getLang(token.lang);
if (options.async) {
return Promise.resolve(options.highlight(token.text, lang, token.lang || '')).then(updateToken(token));
}
const code = options.highlight(token.text, lang, token.lang || '');
if (code instanceof Promise) {
throw new Error('markedHighlight is not set to async but the highlight function is async. Set the async option to true on markedHighlight to await the async highlight function.');
}
updateToken(token)(code);
},
useNewRenderer: true,
renderer: {
code({ text, lang, escaped }) {
const language = getLang(lang);
const classAttr = language
? ` class="${options.langPrefix}${escape(language)}"`
: '';
text = text.replace(/\n$/, '');
return `<pre><code${classAttr}>${escaped ? text : escape(text, true)}\n</code></pre>`;
}
}
};
}
function getLang(lang) {
return (lang || '').match(/\S*/)[0];
}
function updateToken(token) {
return (code) => {
if (typeof code === 'string' && code !== token.text) {
token.escaped = true;
token.text = code;
}
};
}
// copied from marked helpers
const escapeTest = /[&<>"']/;
const escapeReplace = new RegExp(escapeTest.source, 'g');
const escapeTestNoEncode = /[<>"']|&(?!(#\d{1,7}|#[Xx][a-fA-F0-9]{1,6}|\w+);)/;
const escapeReplaceNoEncode = new RegExp(escapeTestNoEncode.source, 'g');
const escapeReplacements = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#39;'
};
const getEscapeReplacement = (ch) => escapeReplacements[ch];
function escape(html, encode) {
if (encode) {
if (escapeTest.test(html)) {
return html.replace(escapeReplace, getEscapeReplacement);
}
} else {
if (escapeTestNoEncode.test(html)) {
return html.replace(escapeReplaceNoEncode, getEscapeReplacement);
}
}
return html;
}
exports.markedHighlight = markedHighlight;
}));
@@ -0,0 +1,6 @@
/**
* marked v13.0.0 - a markdown parser
* Copyright (c) 2011-2024, Christopher Jeffrey. (MIT Licensed)
* https://github.com/markedjs/marked
*/
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t((e="undefined"!=typeof globalThis?globalThis:e||self).marked={})}(this,(function(e){"use strict";function t(){return{async:!1,breaks:!1,extensions:null,gfm:!0,hooks:null,pedantic:!1,renderer:null,silent:!1,tokenizer:null,walkTokens:null}}function n(t){e.defaults=t}e.defaults={async:!1,breaks:!1,extensions:null,gfm:!0,hooks:null,pedantic:!1,renderer:null,silent:!1,tokenizer:null,walkTokens:null};const s=/[&<>"']/,r=new RegExp(s.source,"g"),i=/[<>"']|&(?!(#\d{1,7}|#[Xx][a-fA-F0-9]{1,6}|\w+);)/,l=new RegExp(i.source,"g"),o={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;"},a=e=>o[e];function c(e,t){if(t){if(s.test(e))return e.replace(r,a)}else if(i.test(e))return e.replace(l,a);return e}const h=/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/gi;const p=/(^|[^\[])\^/g;function u(e,t){let n="string"==typeof e?e:e.source;t=t||"";const s={replace:(e,t)=>{let r="string"==typeof t?t:t.source;return r=r.replace(p,"$1"),n=n.replace(e,r),s},getRegex:()=>new RegExp(n,t)};return s}function k(e){try{e=encodeURI(e).replace(/%25/g,"%")}catch(e){return null}return e}const g={exec:()=>null};function f(e,t){const n=e.replace(/\|/g,((e,t,n)=>{let s=!1,r=t;for(;--r>=0&&"\\"===n[r];)s=!s;return s?"|":" |"})).split(/ \|/);let s=0;if(n[0].trim()||n.shift(),n.length>0&&!n[n.length-1].trim()&&n.pop(),t)if(n.length>t)n.splice(t);else for(;n.length<t;)n.push("");for(;s<n.length;s++)n[s]=n[s].trim().replace(/\\\|/g,"|");return n}function d(e,t,n){const s=e.length;if(0===s)return"";let r=0;for(;r<s;){const i=e.charAt(s-r-1);if(i!==t||n){if(i===t||!n)break;r++}else r++}return e.slice(0,s-r)}function x(e,t,n,s){const r=t.href,i=t.title?c(t.title):null,l=e[1].replace(/\\([\[\]])/g,"$1");if("!"!==e[0].charAt(0)){s.state.inLink=!0;const e={type:"link",raw:n,href:r,title:i,text:l,tokens:s.inlineTokens(l)};return s.state.inLink=!1,e}return{type:"image",raw:n,href:r,title:i,text:c(l)}}class b{options;rules;lexer;constructor(t){this.options=t||e.defaults}space(e){const t=this.rules.block.newline.exec(e);if(t&&t[0].length>0)return{type:"space",raw:t[0]}}code(e){const t=this.rules.block.code.exec(e);if(t){const e=t[0].replace(/^ {1,4}/gm,"");return{type:"code",raw:t[0],codeBlockStyle:"indented",text:this.options.pedantic?e:d(e,"\n")}}}fences(e){const t=this.rules.block.fences.exec(e);if(t){const e=t[0],n=function(e,t){const n=e.match(/^(\s+)(?:```)/);if(null===n)return t;const s=n[1];return t.split("\n").map((e=>{const t=e.match(/^\s+/);if(null===t)return e;const[n]=t;return n.length>=s.length?e.slice(s.length):e})).join("\n")}(e,t[3]||"");return{type:"code",raw:e,lang:t[2]?t[2].trim().replace(this.rules.inline.anyPunctuation,"$1"):t[2],text:n}}}heading(e){const t=this.rules.block.heading.exec(e);if(t){let e=t[2].trim();if(/#$/.test(e)){const t=d(e,"#");this.options.pedantic?e=t.trim():t&&!/ $/.test(t)||(e=t.trim())}return{type:"heading",raw:t[0],depth:t[1].length,text:e,tokens:this.lexer.inline(e)}}}hr(e){const t=this.rules.block.hr.exec(e);if(t)return{type:"hr",raw:d(t[0],"\n")}}blockquote(e){const t=this.rules.block.blockquote.exec(e);if(t){let e=d(t[0],"\n").split("\n"),n="",s="";const r=[];for(;e.length>0;){let t=!1;const i=[];let l;for(l=0;l<e.length;l++)if(/^ {0,3}>/.test(e[l]))i.push(e[l]),t=!0;else{if(t)break;i.push(e[l])}e=e.slice(l);const o=i.join("\n"),a=o.replace(/\n {0,3}((?:=+|-+) *)(?=\n|$)/g,"\n $1").replace(/^ {0,3}>[ \t]?/gm,"");n=n?`${n}\n${o}`:o,s=s?`${s}\n${a}`:a;const c=this.lexer.state.top;if(this.lexer.state.top=!0,this.lexer.blockTokens(a,r,!0),this.lexer.state.top=c,0===e.length)break;const h=r[r.length-1];if("code"===h?.type)break;if("blockquote"===h?.type){const t=h,i=t.raw+"\n"+e.join("\n"),l=this.blockquote(i);r[r.length-1]=l,n=n.substring(0,n.length-t.raw.length)+l.raw,s=s.substring(0,s.length-t.text.length)+l.text;break}if("list"!==h?.type);else{const t=h,i=t.raw+"\n"+e.join("\n"),l=this.list(i);r[r.length-1]=l,n=n.substring(0,n.length-h.raw.length)+l.raw,s=s.substring(0,s.length-t.raw.length)+l.raw,e=i.substring(r[r.length-1].raw.length).split("\n")}}return{type:"blockquote",raw:n,tokens:r,text:s}}}list(e){let t=this.rules.block.list.exec(e);if(t){let n=t[1].trim();const s=n.length>1,r={type:"list",raw:"",ordered:s,start:s?+n.slice(0,-1):"",loose:!1,items:[]};n=s?`\\d{1,9}\\${n.slice(-1)}`:`\\${n}`,this.options.pedantic&&(n=s?n:"[*+-]");const i=new RegExp(`^( {0,3}${n})((?:[\t ][^\\n]*)?(?:\\n|$))`);let l="",o="",a=!1;for(;e;){let n=!1;if(!(t=i.exec(e)))break;if(this.rules.block.hr.test(e))break;l=t[0],e=e.substring(l.length);let s=t[2].split("\n",1)[0].replace(/^\t+/,(e=>" ".repeat(3*e.length))),c=e.split("\n",1)[0],h=0;this.options.pedantic?(h=2,o=s.trimStart()):(h=t[2].search(/[^ ]/),h=h>4?1:h,o=s.slice(h),h+=t[1].length);let p=!1;if(!s&&/^ *$/.test(c)&&(l+=c+"\n",e=e.substring(c.length+1),n=!0),!n){const t=new RegExp(`^ {0,${Math.min(3,h-1)}}(?:[*+-]|\\d{1,9}[.)])( Line truncated
+130
View File
@@ -0,0 +1,130 @@
/* make it responsive */
@media(min-width: 852px) {
body {
font-size: 14px;
}
}
@media(max-width: 852px) {
body {
font-size: 12px;
}
}
/* resets */
html, body {
width: 100%;
height: 100%;
}
*::-webkit-scrollbar {
display: none;
}
* {
-ms-overflow-style: none;
scrollbar-width: none;
}
* {
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
/* default */
body {
margin: 0;
background-color: var(--primary-bg-color);
color: var(--foreground-color);
}
h1, h2, h3, h4, h5, h6 {
margin: 0em;
}
hr {
width: 92%;
}
button {
cursor: pointer;
border: none;
background-color: transparent;
}
button:hover {
}
button:active {
}
/* components */
.container {
margin: 0 auto;
padding: 1rem;
}
.centered {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.centered-w-only {
position: absolute;
left: 50%;
transform: translateX(-50%);
}
.centered-h-only {
position: absolute;
top: 50%;
transform: translateY(-50%);
}
.card {
padding: 0;
}
.card-header {
padding: 0.5rem 1rem;
}
.card-container {
width: 96vw;
height: 100%;
gap: 1rem;
display: flex;
flex-direction: row;
flex-wrap: wrap;
justify-content: center;
align-items: center;
}
.clean-a {
text-decoration: underline;
text-decoration-color: #006fc1;
text-decoration-thickness: 2px;
color: inherit;
}
.hover-underline {
text-decoration: underline;
text-decoration-color: #228039;
text-decoration-thickness: 2px;
color: inherit;
}
.flex-horizontal {
display: flex;
flex-direction: row;
justify-content: space-between;
align-items: center;
}
.vertical-separator {
padding: 0 0.5rem;
}
[x-cloak] {
display: none !important;
}
@@ -0,0 +1,25 @@
<svg xmlns="http://www.w3.org/2000/svg" viewBox="-10 -10 150 70" shape-rendering="crispEdges">
<g id="logo">
<!-- t -->
<polygon points="10,40 10,20 0,20 0,10 10,10 10,0 20,0 20,10 30,10 30,20 20,20 20,30 30,30 30,40" />
<!-- i -->
<polygon points="40,40 40,20 50,20 50,40" />
<polygon points="40,10 40,0 50,0 50,10" />
<!-- n -->
<polygon points="60,40 60,10 80,10 80,40 90,40 90,20 70,20 70,40" />
<!-- y -->
<polygon points="100,50 100,40 130,40 130,10 120,10 120,20 110,20 110,10 100,10 100,30 120,30 120,50" />
</g>
<style>
@media (prefers-color-scheme: dark) {
#logo {
fill: #fff;
}
}
@media (prefers-color-scheme: light) {
#logo {
fill: #000;
}
}
</style>
</svg>

After

Width:  |  Height:  |  Size: 750 B

+23
View File
@@ -0,0 +1,23 @@
#!/bin/bash
fetch() {
echo "fetch $1"
mkdir -p assets/$1
rmdir assets/$1
curl -L -o assets/$1 https://$1
}
fetch "cdn.jsdelivr.net/npm/@alpine-collective/toolkit@1.0.2/dist/cdn.min.js"
fetch "cdn.jsdelivr.net/npm/@alpinejs/intersect@3.x.x/dist/cdn.min.js"
fetch "cdn.jsdelivr.net/npm/@alpinejs/focus@3.x.x/dist/cdn.min.js"
fetch "unpkg.com/@marcreichel/alpine-autosize@1.3.x/dist/alpine-autosize.min.js"
fetch "unpkg.com/@marcreichel/alpine-autosize@1.3.x/dist/alpine-autosize.min.js.map"
fetch "unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"
fetch "unpkg.com/dompurify@3.1.5/dist/purify.min.js"
fetch "unpkg.com/dompurify@3.1.5/dist/purify.min.js.map"
fetch "unpkg.com/marked@13.0.0/marked.min.js"
fetch "unpkg.com/marked-highlight@2.1.2/lib/index.umd.js"
fetch "unpkg.com/@highlightjs/cdn-assets@11.9.0/highlight.min.js"
fetch "cdn.jsdelivr.net/npm/purecss@3.0.0/build/base-min.css"
fetch "cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css"
fetch "unpkg.com/@highlightjs/cdn-assets@11.9.0/styles/vs2015.min.css"
fetch "cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/webfonts/fa-solid-900.ttf"
fetch "cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/webfonts/fa-solid-900.woff2"
+281
View File
@@ -0,0 +1,281 @@
/* define colors */
:root {
--primary-color: #fff;
--secondary-color: #2a2a2a;
--secondary-color-transparent: #ffffff66;
--primary-bg-color: #1a1a1a;
--foreground-color: #f0f0f0;
}
main {
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
place-items: center;
}
.home {
width: 100%;
height: 90%;
margin-bottom: 10rem;
}
.title {
font-size: 3rem;
margin: 1rem 0;
margin-top: 3rem;
}
.histories-container-container {
width: 100%;
max-height: 75%;
position: relative;
}
.histories-container {
overflow-y: auto;
overflow-x: hidden;
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
gap: 1rem;
align-items: center;
margin: 0;
padding: 3rem 1rem;
}
.histories-start {
height: 3rem;
width: 100%;
z-index: 999;
top: 0;
position: absolute;
background: linear-gradient(
180deg,
var(--primary-bg-color) 0%,
transparent 100%
);
}
.histories-end {
height: 3rem;
width: 100%;
z-index: 999;
bottom: 0;
position: absolute;
background: linear-gradient(
0deg,
var(--primary-bg-color) 0%,
transparent 100%
);
}
.history {
padding: 1rem;
width: 100%;
max-width: 40rem;
background-color: var(--secondary-color);
border-radius: 10px;
border-left: 2px solid var(--primary-color);
cursor: pointer;
transform: translateX(calc(1px * var(--tx, 0)));
opacity: var(--opacity, 1);
}
.history:hover {
background-color: var(--secondary-color);
}
.history-delete-button {
position: absolute;
top: 0;
right: 0;
padding: 0.5rem;
margin: 0;
outline: none;
border: none;
background-color: var(--secondary-color);
color: var(--foreground-color);
border-radius: 0 0 0 10px;
cursor: pointer;
transition: 0.2s;
}
.history-delete-button:hover {
background-color: var(--secondary-color);
padding: 0.75rem;
}
.messages {
overflow-y: auto;
height: 100%;
width: 100%;
max-width: 1200px;
display: flex;
flex-direction: column;
gap: 1rem;
align-items: center;
padding-top: 1rem;
padding-bottom: 11rem;
}
.message {
max-width: 75%;
padding: 0.5rem 1rem;
border-radius: 20px;
}
.message-role-assistant {
background-color: var(--secondary-color);
margin-right: auto;
color: #fff;
}
.message-role-user {
margin-left: auto;
background-color: var(--primary-color);
color: #000;
}
.message > pre {
white-space: pre-wrap;
}
.hljs {
width: 100%;
position: relative;
border-radius: 10px;
/* wrap code blocks */
white-space: pre-wrap;
}
/* put clipboard button in the top right corner of the code block */
.clipboard-button {
position: absolute;
top: 0;
right: 0;
padding: 0.5rem;
margin: 0;
outline: none;
border: none;
background-color: var(--secondary-color);
color: var(--foreground-color);
border-radius: 0 0 0 10px;
cursor: pointer;
transition: 0.2s;
}
.clipboard-button:hover {
background-color: var(--secondary-color);
padding: 0.75rem;
}
.input-container {
position: absolute;
bottom: 0;
/* linear gradient from background-color to transparent on the top */
background: linear-gradient(
0deg,
var(--primary-bg-color) 55%,
transparent 100%
);
width: 100%;
max-width: 1200px;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
z-index: 999;
}
.input-performance {
margin-top: 4rem;
display: flex;
flex-direction: row;
gap: 1rem;
}
.input-performance-point {
display: flex;
flex-direction: row;
place-items: center;
gap: 0.5rem;
}
.input-performance-point > p {
height: 1rem;
line-height: normal;
}
.input {
width: 90%;
min-height: 3rem;
flex-shrink: 0;
display: flex;
flex-direction: row;
justify-content: center;
gap: 0.5rem;
align-items: flex-end;
margin-bottom: 2rem;
}
.input-form {
width: 100%;
padding: 1rem;
min-height: 3rem;
max-height: 8rem;
background-color: var(--secondary-color);
color: var(--foreground-color);
border-radius: 10px;
border: none;
resize: none;
outline: none;
}
.input-button {
height: 3rem;
width: 4rem;
background-color: var(--primary-color);
color: var(--secondary-color);
border-radius: 10px;
padding: 0.5rem;
cursor: pointer;
}
.input-button:hover {
background-color: var(--secondary-color-transparent);
}
.input-button:disabled {
background-color: var(--secondary-color);
cursor: not-allowed;
}
/* wrap text */
p {
white-space: pre-wrap;
}
/* fonts */
.megrim-regular {
font-family: monospace;
font-weight: 400;
font-style: normal;
}
.monospace {
font-family: monospace;
}
+173
View File
@@ -0,0 +1,173 @@
<!DOCTYPE html>
<head>
<title>tinychat</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="favicon.svg" type="image/svg+xml">
<script defer src="assets/cdn.jsdelivr.net/npm/@alpine-collective/toolkit@1.0.2/dist/cdn.min.js"></script>
<script defer src="assets/cdn.jsdelivr.net/npm/@alpinejs/intersect@3.x.x/dist/cdn.min.js"></script>
<script defer src="assets/cdn.jsdelivr.net/npm/@alpinejs/focus@3.x.x/dist/cdn.min.js"></script>
<script defer src="assets/unpkg.com/@marcreichel/alpine-autosize@1.3.x/dist/alpine-autosize.min.js"></script>
<script defer src="assets/unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
<script src="assets/unpkg.com/dompurify@3.1.5/dist/purify.min.js"></script>
<script src="assets/unpkg.com/marked@13.0.0/marked.min.js"></script>
<script src="assets/unpkg.com/marked-highlight@2.1.2/lib/index.umd.js"></script>
<script src="assets/unpkg.com/@highlightjs/cdn-assets@11.9.0/highlight.min.js"></script>
<script src="index.js"></script>
<link rel="stylesheet" href="assets/cdn.jsdelivr.net/npm/purecss@3.0.0/build/base-min.css">
<link rel="stylesheet" href="assets/cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css"
integrity="sha512-SnH5WK+bZxgPHs44uWIX+LLJAJ9/2PkPKZ5QiAj6Ta86w+fsb2TkcmfRyVX3pBnMFcV7oQPJkl9QevSCWr3W6A=="
crossorigin="anonymous" referrerpolicy="no-referrer" />
<link rel="stylesheet" href="assets/unpkg.com/@highlightjs/cdn-assets@11.9.0/styles/vs2015.min.css">
<link rel="stylesheet" href="index.css">
<link rel="stylesheet" href="common.css">
</head>
<body>
<main x-data="state" x-init="console.log(endpoint)">
<div class="home centered" x-show="home === 0" x-transition x-effect="
$refs.inputForm.focus();
if (home === 1) setTimeout(() => home = 2, 100);
if (home === -1) setTimeout(() => home = 0, 100);
" @popstate.window="
if (home === 2) {
home = -1;
cstate = { time: null, messages: [] };
time_till_first = 0;
tokens_per_second = 0;
total_tokens = 0;
}
">
<h1 class="title megrim-regular">tinychat</h1>
<div class="histories-container-container">
<template x-if="histories.length">
<div class="histories-start"></div>
</template>
<div class="histories-container" x-intersect="
$el.scrollTo({ top: 0, behavior: 'smooth' });
">
<template x-for="_state in histories.toSorted((a, b) => b.time - a.time)">
<div x-data="{ otx: 0, trigger: 75 }" class="history" @click="
cstate = _state;
updateTotalTokens(cstate.messages);
home = 1;
// ensure that going back in history will go back to home
window.history.pushState({}, '', '/');
" @touchstart="
otx = $event.changedTouches[0].clientX;
" @touchmove="
$el.style.setProperty('--tx', $event.changedTouches[0].clientX - otx);
$el.style.setProperty('--opacity', 1 - (Math.abs($event.changedTouches[0].clientX - otx) / trigger));
" @touchend="
if (Math.abs($event.changedTouches[0].clientX - otx) > trigger) removeHistory(_state);
$el.style.setProperty('--tx', 0);
$el.style.setProperty('--opacity', 1);
">
<h3 x-text="new Date(_state.time).toLocaleString()"></h3>
<p x-text="$truncate(_state.messages[0].content, 80)"></p>
<!-- delete button -->
<button class="history-delete-button" @click.stop="removeHistory(_state);">
<i class=" fas fa-trash"></i>
</button>
</div>
</template>
</div>
<template x-if="histories.length">
<div class="histories-end"></div>
</template>
</div>
</div>
<div x-ref="messages" class="messages" x-init="
$watch('cstate', value => {
$el.innerHTML = '';
value.messages.forEach(({ role, content }) => {
const div = document.createElement('div');
div.className = `message message-role-${role}`;
try {
div.innerHTML = DOMPurify.sanitize(marked.parse(content));
} catch (e) {
console.log(content);
console.error(e);
}
// add a clipboard button to all code blocks
const codeBlocks = div.querySelectorAll('.hljs');
codeBlocks.forEach(codeBlock => {
const button = document.createElement('button');
button.className = 'clipboard-button';
button.innerHTML = '<i class=\'fas fa-clipboard\'></i>';
button.onclick = () => {
// navigator.clipboard.writeText(codeBlock.textContent);
const range = document.createRange();
range.setStartBefore(codeBlock);
range.setEndAfter(codeBlock);
window.getSelection()?.removeAllRanges();
window.getSelection()?.addRange(range);
document.execCommand('copy');
window.getSelection()?.removeAllRanges();
button.innerHTML = '<i class=\'fas fa-check\'></i>';
setTimeout(() => button.innerHTML = '<i class=\'fas fa-clipboard\'></i>', 1000);
};
codeBlock.appendChild(button);
});
$el.appendChild(div);
});
$el.scrollTo({ top: $el.scrollHeight, behavior: 'smooth' });
});
" x-intersect="
$el.scrollTo({ top: $el.scrollHeight, behavior: 'smooth' });
" x-show="home === 2" x-transition>
</div>
<div class="input-container">
<div class="input-performance">
<span class="input-performance-point">
<p class="monospace" x-text="(time_till_first / 1000).toFixed(2)"></p>
<p class="megrim-regular">SEC TO FIRST TOKEN</p>
</span>
<span class="input-performance-point">
<p class="monospace" x-text="tokens_per_second.toFixed(1)"></p>
<p class="megrim-regular">TOKENS/SEC</p>
</span>
<span class="input-performance-point">
<p class="monospace" x-text="total_tokens"></p>
<p class="megrim-regular">TOKENS</p>
</span>
</div>
<div class="input">
<textarea x-ref="inputForm" id="input-form" class="input-form" autofocus rows=1 x-autosize
:placeholder="generating ? 'Generating...' : 'Say something'" :disabled="generating" @input="
home = (home === 0) ? 1 : home
if (cstate.messages.length === 0 && $el.value === '') home = -1;
if ($el.value !== '') {
const messages = [...cstate.messages];
messages.push({ role: 'user', content: $el.value });
updateTotalTokens(messages);
} else {
if (cstate.messages.length === 0) total_tokens = 0;
else updateTotalTokens(cstate.messages);
}
" x-effect="
console.log(generating);
if (!generating) $nextTick(() => {
$el.focus();
setTimeout(() => $refs.messages.scrollTo({ top: $refs.messages.scrollHeight, behavior: 'smooth' }), 100);
});
" @keydown.enter="await handleEnter($event)" @keydown.escape.window="$focus.focus($el)"></textarea>
<button class="input-button" :disabled="generating" @click="await handleSend()">
<i class="fas" :class="generating ? 'fa-spinner fa-spin' : 'fa-paper-plane'"></i>
</button>
</div>
</div>
</main>
</body>
</html>
+313
View File
@@ -0,0 +1,313 @@
document.addEventListener("alpine:init", () => {
Alpine.data("state", () => ({
// current state
cstate: {
time: null,
messages: [],
},
// historical state
histories: JSON.parse(localStorage.getItem("histories")) || [],
home: 0,
generating: false,
endpoint: `${window.location.origin}/v1`,
// performance tracking
time_till_first: 0,
tokens_per_second: 0,
total_tokens: 0,
removeHistory(cstate) {
const index = this.histories.findIndex((state) => {
return state.time === cstate.time;
});
if (index !== -1) {
this.histories.splice(index, 1);
localStorage.setItem("histories", JSON.stringify(this.histories));
}
},
async handleSend() {
const el = document.getElementById("input-form");
const value = el.value.trim();
if (!value) return;
if (this.generating) return;
this.generating = true;
if (this.home === 0) this.home = 1;
// ensure that going back in history will go back to home
window.history.pushState({}, "", "/");
// add message to list
this.cstate.messages.push({ role: "user", content: value });
// clear textarea
el.value = "";
el.style.height = "auto";
el.style.height = el.scrollHeight + "px";
// reset performance tracking
const prefill_start = Date.now();
let start_time = 0;
let tokens = 0;
this.tokens_per_second = 0;
// start receiving server sent events
let gottenFirstChunk = false;
for await (
const chunk of this.openaiChatCompletion(this.cstate.messages)
) {
if (!gottenFirstChunk) {
this.cstate.messages.push({ role: "assistant", content: "" });
gottenFirstChunk = true;
}
// add chunk to the last message
this.cstate.messages[this.cstate.messages.length - 1].content += chunk;
// calculate performance tracking
tokens += 1;
this.total_tokens += 1;
if (start_time === 0) {
start_time = Date.now();
this.time_till_first = start_time - prefill_start;
} else {
const diff = Date.now() - start_time;
if (diff > 0) {
this.tokens_per_second = tokens / (diff / 1000);
}
}
}
// update the state in histories or add it if it doesn't exist
const index = this.histories.findIndex((cstate) => {
return cstate.time === this.cstate.time;
});
this.cstate.time = Date.now();
if (index !== -1) {
// update the time
this.histories[index] = this.cstate;
} else {
this.histories.push(this.cstate);
}
// update in local storage
localStorage.setItem("histories", JSON.stringify(this.histories));
this.generating = false;
},
async handleEnter(event) {
// if shift is not pressed
if (!event.shiftKey) {
event.preventDefault();
await this.handleSend();
}
},
updateTotalTokens(messages) {
fetch(`${this.endpoint}/chat/token/encode`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ messages }),
}).then((response) => response.json()).then((data) => {
this.total_tokens = data.length;
}).catch(console.error);
},
async *openaiChatCompletion(messages) {
// stream response
const response = await fetch(`${this.endpoint}/chat/completions`, {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
"messages": messages,
"stream": true,
}),
});
if (!response.ok) {
throw new Error("Failed to fetch");
}
const reader = response.body.pipeThrough(new TextDecoderStream())
.pipeThrough(new EventSourceParserStream()).getReader();
while (true) {
const { done, value } = await reader.read();
if (done) {
break;
}
if (value.type === "event") {
const json = JSON.parse(value.data);
if (json.choices) {
const choice = json.choices[0];
if (choice.finish_reason === "stop") {
break;
}
yield choice.delta.content;
}
}
}
},
}));
});
const { markedHighlight } = globalThis.markedHighlight;
marked.use(markedHighlight({
langPrefix: "hljs language-",
highlight(code, lang, _info) {
const language = hljs.getLanguage(lang) ? lang : "plaintext";
return hljs.highlight(code, { language }).value;
},
}));
// **** eventsource-parser ****
class EventSourceParserStream extends TransformStream {
constructor() {
let parser;
super({
start(controller) {
parser = createParser((event) => {
if (event.type === "event") {
controller.enqueue(event);
}
});
},
transform(chunk) {
parser.feed(chunk);
},
});
}
}
function createParser(onParse) {
let isFirstChunk;
let buffer;
let startingPosition;
let startingFieldLength;
let eventId;
let eventName;
let data;
reset();
return {
feed,
reset,
};
function reset() {
isFirstChunk = true;
buffer = "";
startingPosition = 0;
startingFieldLength = -1;
eventId = void 0;
eventName = void 0;
data = "";
}
function feed(chunk) {
buffer = buffer ? buffer + chunk : chunk;
if (isFirstChunk && hasBom(buffer)) {
buffer = buffer.slice(BOM.length);
}
isFirstChunk = false;
const length = buffer.length;
let position = 0;
let discardTrailingNewline = false;
while (position < length) {
if (discardTrailingNewline) {
if (buffer[position] === "\n") {
++position;
}
discardTrailingNewline = false;
}
let lineLength = -1;
let fieldLength = startingFieldLength;
let character;
for (
let index = startingPosition;
lineLength < 0 && index < length;
++index
) {
character = buffer[index];
if (character === ":" && fieldLength < 0) {
fieldLength = index - position;
} else if (character === "\r") {
discardTrailingNewline = true;
lineLength = index - position;
} else if (character === "\n") {
lineLength = index - position;
}
}
if (lineLength < 0) {
startingPosition = length - position;
startingFieldLength = fieldLength;
break;
} else {
startingPosition = 0;
startingFieldLength = -1;
}
parseEventStreamLine(buffer, position, fieldLength, lineLength);
position += lineLength + 1;
}
if (position === length) {
buffer = "";
} else if (position > 0) {
buffer = buffer.slice(position);
}
}
function parseEventStreamLine(lineBuffer, index, fieldLength, lineLength) {
if (lineLength === 0) {
if (data.length > 0) {
onParse({
type: "event",
id: eventId,
event: eventName || void 0,
data: data.slice(0, -1),
// remove trailing newline
});
data = "";
eventId = void 0;
}
eventName = void 0;
return;
}
const noValue = fieldLength < 0;
const field = lineBuffer.slice(
index,
index + (noValue ? lineLength : fieldLength),
);
let step = 0;
if (noValue) {
step = lineLength;
} else if (lineBuffer[index + fieldLength + 1] === " ") {
step = fieldLength + 2;
} else {
step = fieldLength + 1;
}
const position = index + step;
const valueLength = lineLength - step;
const value = lineBuffer.slice(position, position + valueLength).toString();
if (field === "data") {
data += value ? "".concat(value, "\n") : "\n";
} else if (field === "event") {
eventName = value;
} else if (field === "id" && !value.includes("\0")) {
eventId = value;
} else if (field === "retry") {
const retry = parseInt(value, 10);
if (!Number.isNaN(retry)) {
onParse({
type: "reconnect-interval",
value: retry,
});
}
}
}
}
const BOM = [239, 187, 191];
function hasBom(buffer) {
return BOM.every((charCode, index) => buffer.charCodeAt(index) === charCode);
}
@@ -0,0 +1,5 @@
net_*
llama3-2.tiktoken
tiktoken.js
tiktoken_bg.wasm
transformer*
@@ -0,0 +1,8 @@
# How to build and run tinychat in browser (WebGPU and WASM)
- `PYTHONPATH=. python examples/tinychat/tinychat-browser/compile.py`
- `./examples/tinychat/tinychat-browser/compile_wasm.sh`
- Prerequisite: [install emscripten](https://emscripten.org/docs/getting_started/downloads.html). This script looks for `~/emsdk/emsdk_env.sh`, adjust this based on your installation.
- `./examples/tinychat/tinychat-browser/make_tiktoken_js.sh`
- Prerequisite: install `npm`, `webpack`.
- `cd examples/tinychat && python -m http.server 7776`
- In browser: open either `localhost:7776/tinychat-browser` (WebGPU), or `localhost:7776/tinychat-browser/?backend=wasm` (WASM)
@@ -0,0 +1,148 @@
import os, json, hashlib, math
from extra.export_model import export_model
from examples.llama3 import build_transformer, Tokenizer
from tinygrad.nn.state import get_state_dict, load_state_dict
from tinygrad import Device, Variable, Tensor, dtypes, TinyJit
from tinygrad.helpers import DEV, fetch, Context
from tiktoken.load import load_tiktoken_bpe, dump_tiktoken_bpe
def prepare_browser_chunks(model):
# split weights into browser-friendly chunks
state_dict = get_state_dict(model)
del state_dict['output.weight'], state_dict['output.scale'] # same as tok_embeddings; ensures consistency with model export
chunk_size = 16 * 1024 * 1024 # small chunks based on iphone browser constraints
metadata = {}
# We won't export cache_kv bytes (because we start inference on client at start_pos=0), but we will tell the client how big cache_kv needs to be
t_infos = [(v.uop.base.realized.nbytes, k, v.dtype) for k,v in state_dict.items() if "cache_kv" not in k]
empty_t_infos = [(v.uop.base.realized.nbytes, k, v.dtype) for k,v in state_dict.items() if "cache_kv" in k]
split_t_infos = []
for size, name, dtype in t_infos:
if size <= chunk_size:
split_t_infos.append((size, name, dtype, ()))
else: # split large weights into multiple parts
for i in range(0, size, chunk_size):
split_t_infos.append((min(chunk_size, size-i), f"{name}_part{math.ceil(i/chunk_size)}", dtype, (i, min(i+chunk_size, size))))
files = []
# pack weights into files with FFD bin packing
split_t_infos = sorted(split_t_infos, reverse=True)
for info in split_t_infos:
placed = False
for file in files:
if sum(i[0] for i in file) + info[0] <= chunk_size:
if info[3] and any(i[3] for i in file): continue # no two split tensors can touch the same file, due to wasm loading constraints
file.append(info)
placed = True
break
if not placed:
files.append([info])
tinygrad_dtypes = {dtypes.float32: "float32", dtypes.float16: "float16", dtypes.int8: "int8", dtypes.int32: "int32"}
for i, file in enumerate(files):
cursor = 0
with open(os.path.join(os.path.dirname(__file__), f'./net_part{i}.chunk'), "wb+") as writer:
for size, name, dtype, offsets in file:
name, part_num = (name, 0) if "_part" not in name else (name.split("_part")[0], int(name.split("_part")[1]))
default = {"parts": {}, "dtype": tinygrad_dtypes[dtype]}
weight_metadata = metadata.get(name, default)
weight_metadata["parts"][part_num] = {"file": i, "file_start_pos": cursor, "size": size}
metadata[name] = weight_metadata
data = bytes(state_dict[name].uop.base.realized.as_memoryview())
data = data if not offsets else data[offsets[0]:offsets[1]]
writer.write(data)
cursor += size
metadata.update({name: {"parts": {0: {"empty": True, "size": size}}, "dtype": tinygrad_dtypes[dtype]} for size, name, dtype in empty_t_infos})
for k in metadata:
metadata[k]["parts"] = [part for part_num, part in sorted(metadata[k]["parts"].items(), key = lambda x: x[0])]
cursor = 0
for i, part in enumerate(metadata[k]["parts"]):
metadata[k]["parts"][i]["target_start_pos"] = cursor
cursor += part["size"]
metadata[k]["size"] = cursor
# compute hashes, which client app will check to determine whether to update with new weights and/or detect integrity issues
state_dict_hash = hashlib.sha256(json.dumps(metadata, sort_keys=True).encode("utf-8")).hexdigest()
metadata = {"state_dict": metadata, "state_dict_hash": state_dict_hash, "files": []}
hashes = set()
for i in range(len(files)):
with open(os.path.join(os.path.dirname(__file__), f'./net_part{i}.chunk'), "rb") as reader:
hash = hashlib.sha256(reader.read()).hexdigest()
hashes.add(hash)
metadata["files"].append({"name": f'net_part{i}.chunk', "hash": hash})
if len(hashes) != len(files): print(f"WARNING: {len(files)} files were exported, but only {len(hashes)} are unique: something may have gone wrong")
metadata_hash = hashlib.sha256(json.dumps(metadata, sort_keys=True).encode("utf-8")).hexdigest()
metadata = {"metadata": metadata, "metadata_hash": metadata_hash}
with open(os.path.join(os.path.dirname(__file__), f'./net_metadata.json'), "w") as writer: json.dump(metadata, writer, indent=4)
return metadata
def validate_model(model, tokenizer):
prompt = "yo"
toks = [tokenizer.bos_id]
toks += [tokenizer.special_tokens["<|start_header_id|>"]] + tokenizer.encode("user") + [tokenizer.special_tokens["<|end_header_id|>"]] + tokenizer.encode("\n\n")
toks += tokenizer.encode(prompt) + [tokenizer.special_tokens["<|eot_id|>"]]
toks += [tokenizer.special_tokens["<|start_header_id|>"]] + tokenizer.encode("assistant") + [tokenizer.special_tokens["<|end_header_id|>"]] + tokenizer.encode("\n\n")
start_pos = 0
run = TinyJit(model.forward)
for tok in toks[:-1]:
run(Tensor([[tok]]), Variable("start_pos", 0, model.max_context).bind(start_pos), 0.0, 0, 0.0, 0.0, 0.0).realize()
start_pos += 1
tok = toks[-1]
result = ""
expected = "How's it going?"
while True:
tok = run(Tensor([[tok]]), Variable("start_pos", 0, model.max_context).bind(start_pos), 0.0, 0, 0.0, 0.0, 0.0).item()
start_pos += 1
if tok in tokenizer.stop_tokens or len(result) > len(expected): break
result += tokenizer.decode([tok])
assert result == expected, f"Model validation failed, expected output: {expected}, actual output: {result}"
if __name__=="__main__":
# Export BPE data for use with tiktoken.js
tokenizer_path = fetch("https://huggingface.co/bofenghuang/Meta-Llama-3-8B/resolve/main/original/tokenizer.model", "tokenizer.model", subdir="llama3-1b-instruct")
mergeable_ranks = load_tiktoken_bpe(str(tokenizer_path))
bpe_path = os.path.join(os.path.dirname(__file__), "llama3-2.tiktoken")
dump_tiktoken_bpe(mergeable_ranks, bpe_path)
tokenizer = Tokenizer(str(tokenizer_path))
model_path = fetch("https://huggingface.co/bartowski/Llama-3.2-1B-Instruct-GGUF/resolve/main/Llama-3.2-1B-Instruct-f16.gguf", "Llama-3.2-1B-Instruct-f16.gguf", subdir="llama3-1b-instruct")
max_context=1024
tok = 128000
TEMPERATURE, TOP_K, TOP_P, ALPHA_F, ALPHA_P = 0.95, 0, 0.0, 0.0, 0.0
start_pos = Variable("start_pos", 0, max_context).bind(0)
model_input = lambda: [Tensor([[tok]]), start_pos, TEMPERATURE, TOP_K, TOP_P, ALPHA_F, ALPHA_P]
DEV.value = "CPU"
model = build_transformer(model_path, model_size="1B", quantize="int8", scale_dtype=dtypes.float32, device=Device.DEFAULT, max_context=max_context)
state_dict = get_state_dict(model)
validate_model(model, tokenizer)
model_name = "transformer"
with Context(BEAM=3):
cprog, js_wrapper = export_model(model, "wasm", *model_input(), model_name=model_name)
# ensure consistency with exported weights
js_wrapper = js_wrapper.replace("output.weight", "tok_embeddings.weight").replace("output.scale", "tok_embeddings.scale")
with open(os.path.join(os.path.dirname(__file__), f"{model_name}.c"), "w") as f: f.write(cprog)
with open(os.path.join(os.path.dirname(__file__), "net_clang.js"), "w") as f: f.write(js_wrapper)
DEV.value = "WEBGPU"
# float16 is not yet supported for dawn/Vulkan/NVIDIA stack, see: https://issues.chromium.org/issues/42251215
# therefore for now, we used CLANG to quantize the float16 llama to int8 with float32 scales, then load to WEBGPU
model = build_transformer(model_path, model_size="1B", quantize="int8", max_context=max_context, load_weights=False)
load_state_dict(model, state_dict)
# these were the same before load_state_dict
model.output.weight, model.output.scale = model.tok_embeddings.weight, model.tok_embeddings.scale
validate_model(model, tokenizer)
metadata = prepare_browser_chunks(model) # export weights to disk
with Context(BEAM=3):
prg, input_sizes, output_sizes, state = export_model(model, "webgpu", *model_input(), model_name=model_name, stream_weights=True)
# ensure consistency with exported weights
prg = prg.replace("output.weight", "tok_embeddings.weight").replace("output.scale", "tok_embeddings.scale")
with open(os.path.join(os.path.dirname(__file__), "net.js"), "w") as f: f.write(prg)
@@ -0,0 +1,23 @@
#!/usr/bin/env bash
cd "$(dirname "$0")"
# prereq: install emscripten: https://emscripten.org/docs/getting_started/downloads.html
EMSCRIPTEN_PATH=~/emsdk/emsdk_env.sh
source $EMSCRIPTEN_PATH
step="transformer"
initial_memory=6553600
max_memory=1500053504
exported_functions='["_net", "_malloc", "_free", "_set_buf"]'
emcc "${step}.c" \
-O3 -msimd128 -ffast-math -flto \
-o "${step}.js" \
-s MODULARIZE=1 \
-s EXPORT_ES6=1 \
-s EXPORTED_FUNCTIONS="${exported_functions}" \
-s ENVIRONMENT='worker' \
-s FILESYSTEM=0 \
-s EVAL_CTORS \
-s ALLOW_MEMORY_GROWTH=1 \
-s INITIAL_MEMORY="$initial_memory" \
-s MAXIMUM_MEMORY="$max_memory"
@@ -0,0 +1,322 @@
/* define colors */
:root {
--primary-color: #fff;
--secondary-color: #2a2a2a;
--secondary-color-transparent: #ffffff66;
--primary-bg-color: #1a1a1a;
--foreground-color: #f0f0f0;
}
main {
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
place-items: center;
}
.home {
width: 100%;
height: 90%;
margin-bottom: 10rem;
}
.title {
font-size: 3rem;
margin: 1rem 0;
margin-top: 3rem;
}
.histories-container-container {
width: 100%;
max-height: 75%;
position: relative;
}
.histories-container {
overflow-y: auto;
overflow-x: hidden;
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
gap: 1rem;
align-items: center;
margin: 0;
padding: 3rem 1rem;
}
.histories-start {
height: 3rem;
width: 100%;
z-index: 999;
top: 0;
position: absolute;
background: linear-gradient(
180deg,
var(--primary-bg-color) 0%,
transparent 100%
);
}
.histories-end {
height: 3rem;
width: 100%;
z-index: 999;
bottom: 0;
position: absolute;
background: linear-gradient(
0deg,
var(--primary-bg-color) 0%,
transparent 100%
);
}
.history {
padding: 1rem;
width: 100%;
max-width: 40rem;
background-color: var(--secondary-color);
border-radius: 10px;
border-left: 2px solid var(--primary-color);
cursor: pointer;
transform: translateX(calc(1px * var(--tx, 0)));
opacity: var(--opacity, 1);
}
.history:hover {
background-color: var(--secondary-color);
}
.history-delete-button {
position: absolute;
top: 0;
right: 0;
padding: 0.5rem;
margin: 0;
outline: none;
border: none;
background-color: var(--secondary-color);
color: var(--foreground-color);
border-radius: 0 0 0 10px;
cursor: pointer;
transition: 0.2s;
}
.history-delete-button:hover {
background-color: var(--secondary-color);
padding: 0.75rem;
}
.messages {
overflow-y: auto;
height: 100%;
width: 100%;
max-width: 1200px;
display: flex;
flex-direction: column;
gap: 1rem;
align-items: center;
padding-top: 1rem;
padding-bottom: 11rem;
}
.message {
max-width: 75%;
padding: 0.5rem 1rem;
border-radius: 20px;
}
.message-role-assistant {
background-color: var(--secondary-color);
margin-right: auto;
color: #fff;
}
.message-role-user {
margin-left: auto;
background-color: var(--primary-color);
color: #000;
}
.message > pre {
white-space: pre-wrap;
}
.hljs {
width: 100%;
position: relative;
border-radius: 10px;
/* wrap code blocks */
white-space: pre-wrap;
}
/* put clipboard button in the top right corner of the code block */
.clipboard-button {
position: absolute;
top: 0;
right: 0;
padding: 0.5rem;
margin: 0;
outline: none;
border: none;
background-color: var(--secondary-color);
color: var(--foreground-color);
border-radius: 0 0 0 10px;
cursor: pointer;
transition: 0.2s;
}
.clipboard-button:hover {
background-color: var(--secondary-color);
padding: 0.75rem;
}
.input-container {
position: absolute;
bottom: 0;
/* linear gradient from background-color to transparent on the top */
background: linear-gradient(
0deg,
var(--primary-bg-color) 55%,
transparent 100%
);
width: 100%;
max-width: 1200px;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
z-index: 999;
}
.input-performance {
margin-top: 4rem;
display: flex;
flex-direction: row;
gap: 1rem;
}
.input-performance-point {
display: flex;
flex-direction: row;
place-items: center;
gap: 0.5rem;
}
.input-performance-point > p {
height: 1rem;
line-height: normal;
}
.input {
width: 90%;
min-height: 3rem;
flex-shrink: 0;
display: flex;
flex-direction: row;
justify-content: center;
gap: 0.5rem;
align-items: flex-end;
margin-bottom: 2rem;
}
.input-form {
width: 100%;
padding: 1rem;
min-height: 3rem;
max-height: 8rem;
background-color: var(--secondary-color);
color: var(--foreground-color);
border-radius: 10px;
border: none;
resize: none;
outline: none;
}
.mobile .input-form { /* prevent auto-zoom on touching prompt box */
font-size: 16px;
}
.input-button {
height: 3rem;
width: 4rem;
background-color: var(--primary-color);
color: var(--secondary-color);
border-radius: 10px;
padding: 0.5rem;
cursor: pointer;
}
.input-button:hover {
background-color: var(--secondary-color-transparent);
}
.input-button:disabled {
background-color: var(--secondary-color);
cursor: not-allowed;
}
/* wrap text */
p {
white-space: pre-wrap;
}
/* fonts */
.megrim-regular {
font-family: monospace;
font-weight: 400;
font-style: normal;
}
.monospace {
font-family: monospace;
}
.loading-bar {
display: flex;
flex-direction: row;
align-items: center;
gap: 0.5rem;
width: 100%;
min-height: 3rem;
margin-bottom: 2rem;
}
.loading-text {
color: var(--foreground-color);
font-size: 1rem;
white-space: nowrap;
}
#progress-percentage {
color: var(--foreground-color);
font-size: 1rem;
white-space: nowrap;
}
.progress-bar {
flex-grow: 1;
height: 0.5rem;
background-color: var(--secondary-color);
border-radius: 5px;
overflow: hidden;
position: relative;
}
.progress {
width: 0%;
height: 100%;
background-color: var(--primary-color);
transition: width 0.2s ease-in-out;
}
@@ -0,0 +1,182 @@
<!DOCTYPE html>
<head>
<title>tinychat</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="../favicon.svg" type="image/svg+xml">
<script defer src="../assets/cdn.jsdelivr.net/npm/@alpine-collective/toolkit@1.0.2/dist/cdn.min.js"></script>
<script defer src="../assets/cdn.jsdelivr.net/npm/@alpinejs/intersect@3.x.x/dist/cdn.min.js"></script>
<script defer src="../assets/cdn.jsdelivr.net/npm/@alpinejs/focus@3.x.x/dist/cdn.min.js"></script>
<script defer src="../assets/unpkg.com/@marcreichel/alpine-autosize@1.3.x/dist/alpine-autosize.min.js"></script>
<script defer src="../assets/unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
<script src="../assets/unpkg.com/dompurify@3.1.5/dist/purify.min.js"></script>
<script src="../assets/unpkg.com/marked@13.0.0/marked.min.js"></script>
<script src="../assets/unpkg.com/marked-highlight@2.1.2/lib/index.umd.js"></script>
<script src="../assets/unpkg.com/@highlightjs/cdn-assets@11.9.0/highlight.min.js"></script>
<script src="index.js"></script>
<link rel="stylesheet" href="../assets/cdn.jsdelivr.net/npm/purecss@3.0.0/build/base-min.css">
<link rel="stylesheet" href="../assets/cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css"
integrity="sha512-SnH5WK+bZxgPHs44uWIX+LLJAJ9/2PkPKZ5QiAj6Ta86w+fsb2TkcmfRyVX3pBnMFcV7oQPJkl9QevSCWr3W6A=="
crossorigin="anonymous" referrerpolicy="no-referrer" />
<link rel="stylesheet" href="../assets/unpkg.com/@highlightjs/cdn-assets@11.9.0/styles/vs2015.min.css">
<link rel="stylesheet" href="index.css">
<link rel="stylesheet" href="../common.css">
</head>
<body>
<main x-data="state" x-init="console.log(endpoint)">
<div class="home centered" x-show="home === 0" x-transition x-effect="
$refs.inputForm.focus();
if (home === 1) setTimeout(() => home = 2, 100);
if (home === -1) setTimeout(() => home = 0, 100);
" @popstate.window="
if (home === 2) {
cancelGeneration = true;
if (maxContextReached) generating = false;
if (!generating) cstate = { time: null, messages: [] };
home = -1;
time_till_first = 0;
tokens_per_second = 0;
total_tokens = 0;
}
">
<h1 class="title megrim-regular">tinychat</h1>
<div class="histories-container-container">
<template x-if="histories.length">
<div class="histories-start"></div>
</template>
<div class="histories-container" x-intersect="
$el.scrollTo({ top: 0, behavior: 'smooth' });
">
<template x-for="_state in histories.toSorted((a, b) => b.time - a.time)">
<div x-data="{ otx: 0, trigger: 75 }" class="history" @click="
cstate = _state;
updateTotalTokens(cstate.messages);
home = 1;
// ensure that going back in history will go back to home
window.history.pushState({}, '', window.TINYCHAT_ROOT || '/');
" @touchstart="
otx = $event.changedTouches[0].clientX;
" @touchmove="
$el.style.setProperty('--tx', $event.changedTouches[0].clientX - otx);
$el.style.setProperty('--opacity', 1 - (Math.abs($event.changedTouches[0].clientX - otx) / trigger));
" @touchend="
if (Math.abs($event.changedTouches[0].clientX - otx) > trigger) removeHistory(_state);
$el.style.setProperty('--tx', 0);
$el.style.setProperty('--opacity', 1);
">
<h3 x-text="new Date(_state.time).toLocaleString()"></h3>
<p x-text="$truncate(_state.messages[0].content, 80)"></p>
<!-- delete button -->
<button class="history-delete-button" @click.stop="removeHistory(_state);">
<i class=" fas fa-trash"></i>
</button>
</div>
</template>
</div>
<template x-if="histories.length">
<div class="histories-end"></div>
</template>
</div>
</div>
<div x-ref="messages" class="messages" x-init="
$watch('cstate', value => {
$el.innerHTML = '';
value.messages.forEach(({ role, content }) => {
const div = document.createElement('div');
div.className = `message message-role-${role}`;
try {
div.innerHTML = DOMPurify.sanitize(marked.parse(content));
} catch (e) {
console.log(content);
console.error(e);
}
// add a clipboard button to all code blocks
const codeBlocks = div.querySelectorAll('.hljs');
codeBlocks.forEach(codeBlock => {
const button = document.createElement('button');
button.className = 'clipboard-button';
button.innerHTML = '<i class=\'fas fa-clipboard\'></i>';
button.onclick = () => {
// navigator.clipboard.writeText(codeBlock.textContent);
const range = document.createRange();
range.setStartBefore(codeBlock);
range.setEndAfter(codeBlock);
window.getSelection()?.removeAllRanges();
window.getSelection()?.addRange(range);
document.execCommand('copy');
window.getSelection()?.removeAllRanges();
button.innerHTML = '<i class=\'fas fa-check\'></i>';
setTimeout(() => button.innerHTML = '<i class=\'fas fa-clipboard\'></i>', 1000);
};
codeBlock.appendChild(button);
});
$el.appendChild(div);
});
$el.scrollTo({ top: $el.scrollHeight, behavior: 'smooth' });
});
" x-intersect="
$el.scrollTo({ top: $el.scrollHeight, behavior: 'smooth' });
" x-show="home === 2" x-transition>
</div>
<div class="input-container">
<div class="input-performance">
<span class="input-performance-point">
<p class="monospace" x-text="(time_till_first / 1000).toFixed(2)"></p>
<p class="megrim-regular">SEC TO FIRST TOKEN</p>
</span>
<span class="input-performance-point">
<p class="monospace" x-text="tokens_per_second.toFixed(1)"></p>
<p class="megrim-regular">TOKENS/SEC</p>
</span>
<span class="input-performance-point">
<p class="monospace" x-text="total_tokens"></p>
<p class="megrim-regular">TOKENS</p>
</span>
</div>
<div class="loading-bar" x-show="loadingMessage !== ''">
<p class="loading-text" id="loading-message">Loading:</p>
<span id="progress-percentage">0%</span>
<div class="progress-bar">
<div class="progress"></div>
</div>
</div>
<div class="input" x-show="loadingMessage === ''">
<textarea x-ref="inputForm" id="input-form" class="input-form" autofocus rows=1 x-autosize
:placeholder="generating ? placeholderText : 'Say something'" :disabled="generating" @input="
home = (home === 0) ? 1 : home
if (cstate.messages.length === 0 && $el.value === '') home = -1;
if ($el.value !== '') {
const messages = [...cstate.messages];
messages.push({ role: 'user', content: $el.value });
updateTotalTokens(messages);
} else {
if (cstate.messages.length === 0) total_tokens = 0;
else updateTotalTokens(cstate.messages);
}
" x-effect="
console.log(generating);
if (!generating) $nextTick(() => {
$el.focus();
setTimeout(() => $refs.messages.scrollTo({ top: $refs.messages.scrollHeight, behavior: 'smooth' }), 100);
});
" @keydown.enter="await handleEnter($event)" @keydown.escape.window="$focus.focus($el)"></textarea>
<button class="input-button" :disabled="generating" @click="await handleSend()">
<i class="fas" :class="generating ? 'fa-spinner fa-spin' : 'fa-paper-plane'"></i>
</button>
</div>
</div>
</main>
</body>
</html>
@@ -0,0 +1,927 @@
window.TINYCHAT_ROOT = "/tinychat-browser/";
const queryParams = new URLSearchParams(window.location.search);
const normalizedParams = Object.fromEntries([...queryParams].map(([key, value]) => [key.toUpperCase(), value.toUpperCase()]));
window.BACKEND = (normalizedParams["BACKEND"] === "WASM") ? "WASM" : "WebGPU";
const isMobileAgent = /Mobi|Android|iPhone|iPad|iPod/i.test(navigator.userAgent);
const hasTouchScreen = 'ontouchstart' in window || navigator.maxTouchPoints > 0;
window.isMobile = isMobileAgent || hasTouchScreen;
if (window.isMobile) document.documentElement.classList.add('mobile'); // prevent annoying auto-zoom when entering prompt on mobile
// MODEL_BASE_URL is where the weights are hosted, WEBGPU_EXPORT is the JS-wrapped WebGPU code exported from tinygrad
window.PC_MODEL_BASE_URL = ".";
window.PC_WEBGPU_EXPORT = './net.js'
window.PC_MAX_CONTEXT = 1024;
window.MOBILE_MODEL_BASE_URL = ".";
window.MOBILE_WEBGPU_EXPORT = './net.js'
window.MOBILE_MAX_CONTEXT = 1024;
const tiktokenReady = (async () => {
const { init, get_encoding, Tiktoken, load } = await import('./tiktoken.js');
window.Tiktoken = Tiktoken;
window.tiktokenInit = init;
window.tiktokenGetEncoding = get_encoding;
window.tiktokenLoad = load;
})();
async function getDevice() {
let adapter;
try {
adapter = await navigator.gpu.requestAdapter();
if (!adapter) {
this.loadingMessage = "Loading WASM (WebGPU not enabled):";
throw new Error("No WebGPU adapter found");
}
} catch(error) {
this.loadingMessage = "Loading WASM (WebGPU not enabled):";
throw error;
}
const requiredLimits = {};
const maxBufferSize = 322122544;
requiredLimits.maxStorageBufferBindingSize = maxBufferSize;
requiredLimits.maxBufferSize = maxBufferSize;
requiredLimits.maxComputeInvocationsPerWorkgroup = 512; // may need to vary based on what the WEBGPU backend produces
try {
return await adapter.requestDevice({ requiredLimits });
} catch(error) {
this.loadingMessage = "Loading WASM (WebGPU error):";
throw error;
}
};
// copied from examples/webgpu/stable_diffusion/index.html
function initDb() {
return new Promise((resolve, reject) => {
let db;
const request = indexedDB.open('tinydb', 1);
request.onerror = (event) => {
console.error('Database error:', event.target.error);
resolve(null);
};
request.onsuccess = (event) => {
db = event.target.result;
console.log("Db initialized.");
resolve(db);
};
request.onupgradeneeded = (event) => {
db = event.target.result;
if (!db.objectStoreNames.contains('tensors')) {
db.createObjectStore('tensors', { keyPath: 'id' });
}
};
});
}
// copied from examples/webgpu/stable_diffusion/index.html
function readTensorFromDb(db, id) {
return new Promise((resolve, reject) => {
if (db == null) {
resolve(null);
}
const transaction = db.transaction(['tensors'], 'readonly');
const store = transaction.objectStore('tensors');
const request = store.get(id);
transaction.onabort = (event) => {
console.log("Transaction error while reading tensor: " + event.target.error);
resolve(null);
};
request.onsuccess = (event) => {
const result = event.target.result;
if (result) {
resolve(result);
} else {
resolve(null);
}
};
request.onerror = (event) => {
console.error('Tensor retrieve failed: ', event.target.error);
resolve(null);
};
});
}
function getAllKeysFromDb(db) {
return new Promise((resolve, reject) => {
if (db == null) {resolve([]);}
const transaction = db.transaction(['tensors'], 'readonly');
const store = transaction.objectStore('tensors');
const request = store.getAllKeys();
transaction.onabort = (event) => {
console.log("Transaction error while reading IndexedDB keys: " + event.target.error);
resolve([]);
};
request.onsuccess = function (event) {resolve(event.target.result);};
request.onerror = (event) => {
console.error('Retrieval of IndexedDB keys failed: ', event.target.error);
resolve([]);
};
});
}
// modified from examples/webgpu/stable_diffusion/index.html
function saveTensorToDb(db, id, tensor) {
return readTensorFromDb(db, id).then((result) => {
if (!result) {
new Promise((resolve, reject) => {
if (db == null) {
resolve(null);
}
const transaction = db.transaction(['tensors'], 'readwrite');
const store = transaction.objectStore('tensors');
const request = store.put({ id: id, content: tensor });
transaction.onabort = (event) => {
console.log("Transaction error while saving tensor: " + event.target.error);
resolve(null);
};
request.onsuccess = () => {
console.log('Tensor saved successfully.');
resolve();
};
request.onerror = (event) => {
console.error('Tensor save failed:', event.target.error);
resolve(null);
};
});
} else {
return null;
}
}).catch(()=> null);
}
function deleteTensorFromDb(db, id) {
return new Promise((resolve, reject) => {
if (db == null) {
console.error("Database is not initialized.");
resolve(null);
return;
}
const transaction = db.transaction(['tensors'], 'readwrite');
const store = transaction.objectStore('tensors');
const request = store.delete(id);
transaction.oncomplete = () => {
console.log(`Tensor with ID '${id}' deleted successfully.`);
resolve();
};
transaction.onerror = (event) => {
console.error("Transaction error while deleting tensor:", event.target.error);
resolve(null);
};
request.onerror = (event) => {
console.error('Tensor deletion failed:', event.target.error);
resolve(null);
};
request.onsuccess = () => {
console.log(`Delete request for tensor with ID '${id}' succeeded.`);
};
});
}
function makeProgress(total) {
let acc = 0;
const ret = function progress(amount, message) {
if (amount >= 0) { // allow updating message only
acc += amount;
const percentage = total ? Math.trunc((acc / total) * 100) : 0;
document.querySelector('.progress').style.width = `${percentage}%`;
document.getElementById('progress-percentage').textContent = `${percentage}%`;
}
if (message) {
this.loadingMessage = message;
document.getElementById('loading-message').textContent = this.loadingMessage;
}
}.bind(this);
ret.total = total;
return ret;
}
function sendMessageToWorker(worker, message) {
return new Promise((resolve, reject) => {
const onMessage = (event) => {
resolve(event.data);
worker.removeEventListener('message', onMessage);
worker.removeEventListener('error', onError);
};
const onError = (error) => {
reject(error);
worker.removeEventListener('message', onMessage);
worker.removeEventListener('error', onError);
};
worker.addEventListener('message', onMessage);
worker.addEventListener('error', onError);
if (message.header === "token") worker.postMessage(message.data);
else if (message.header === "load_state_dict") {
if (message.data === "done") worker.postMessage(message.data);
else worker.postMessage(message.data, message.data.map(file => file.bytes.buffer));
}
else if (message.header === "init") worker.postMessage("init");
});
}
async function load_state_dict (data, device, progress) {
let state_dict = data.metadata.state_dict;
let completed = 0;
// modified from examples/webgpu/stable_diffusion/index.html getProgressDlForPart
const loadPart = async (part) => {
const response = await fetch(part);
const res = new Response(new ReadableStream({
async start(controller) {
const reader = response.body.getReader();
for (;;) {
const { done, value } = await reader.read();
if (done) break;
progress(value.byteLength);
controller.enqueue(value);
}
controller.close();
},
}));
return res.arrayBuffer();
};
let db = await initDb();
const getPart = async(filename, hash) => {
let part = await readTensorFromDb(db, hash);
if (part) {
console.log(`Cache hit: ${filename}, hash: ${hash}`);
progress(part.content.byteLength);
return Promise.resolve(part.content);
} else {
console.log(`Cache miss: ${filename}, hash: ${hash}`);
return loadPart(`${window.MODEL_BASE_URL}/${filename}`);
}
}
const correctHashes = data.metadata.files.map(file => file.hash)
// delete unused cached buffers to free disk space -- if we update weights, user will otherwise have obsolete cached buffers
const dbKeys = await getAllKeysFromDb(db);
const correctHashesSet = new Set(correctHashes);
const notInCorrectHashes = dbKeys.filter(key => !correctHashesSet.has(key));
// await these right before starting to save new stuff
const deletionPromises = notInCorrectHashes.map(async (hash) => deleteTensorFromDb(db, hash));
// instantiates empty weight buffers on WebGPU, attaches buffers to state_dict
let model;
if (window.BACKEND === "WebGPU") {
//model = await transformer().setup(device, state_dict, progress);
model = await transformer.setupNet(device, state_dict);
progress(0.15 * progress.total);
}
else if (window.BACKEND === "WASM") {
progress(0.02 * progress.total);
model = new Worker(`./worker.js?version=${Date.now()}`);
await sendMessageToWorker(model, {header: "init"});
progress(0.02 * progress.total);
progress(0.11 * progress.total);
}
const downloaded = [];
const triggerChainDownload = async (toDownload) => {
const numDownloaders = window.isMobile ? 4 : toDownload.length; // TODO: dynamically base this on DL file size? current assumption is 16 MiB chunks
const chainDownload = async() => {
const file = toDownload.shift();
loadPart(`${window.MODEL_BASE_URL}/${file.name}`) // triggers download
.then(async (arraybuf) => {
downloaded.push({ ...file, bytes: new Uint8Array(arraybuf)});
// pause downloads if further processing is a bottleneck
while (toDownload.length && downloaded.length >= numDownloaders) await new Promise(resolve => setTimeout(resolve, 5));
if (toDownload.length && downloaded.length < numDownloaders) chainDownload(); // start next download
})
}
for (let i=0; i<numDownloaders; i++) if (toDownload.length) chainDownload();
}
const loadFileToStateDict = async(file) => {
if (window.BACKEND === "WebGPU") {
for (const part of file.parts) {
if (part.empty) continue;
part.bytes = (part.size === file.bytes.length) ? file.bytes : file.bytes.slice(part.file_start_pos, part.file_start_pos + part.size);
device.queue.writeBuffer(state_dict[part.key].bytes, part.target_start_pos, part.bytes); // improves stability over mappedAtCreation writing
part.bytes = null;
}
}
else if (window.BACKEND === "WASM") {
await sendMessageToWorker(model, {header: "load_state_dict", data: [file]});
}
file.bytes = null;
}
if (window.BACKEND === "WebGPU") { // contiguous loading not needed for WebGPU stability
const files = data.tensor_file_groups.flatMap(obj => obj.files);
data.tensor_file_groups = [{contiguous: false, files: files}];
}
for (const group of data.tensor_file_groups) {
const contiguous = group.contiguous;
const files = group.files;
const tensor_file_indices = files.map(file => file.index);
const contiguousFiles = [];
const fileHashes = new Set(files.map(file => file.hash));
const cachedFileHashes = new Set(dbKeys.filter(key => fileHashes.has(key)));
const cachedFiles = files.filter(file => cachedFileHashes.has(file.hash));
const toDownload = files.filter(file => !cachedFileHashes.has(file.hash));
triggerChainDownload(toDownload);
const loadDelay = 5;
await Promise.all(deletionPromises);
while (completed < files.length) {
const start = performance.now();
// prioritize files from downloaded queue, so we can continue downloading more files
if (downloaded.length) {
const file = downloaded.shift();
await saveTensorToDb(db, file.hash, file.bytes); // for wasm, must await to prevent race between indexedDB and transfer to worker
if (!contiguous) await loadFileToStateDict(file);
else contiguousFiles.push(file);
completed += 1;
}
else if (!downloaded.length && cachedFiles.length) {
const file = cachedFiles.shift();
file.bytes = await getPart(file.name, file.hash); // reads data from IndexedDB
if (!contiguous) await loadFileToStateDict(file);
else contiguousFiles.push(file);
completed += 1;
}
const end = performance.now();
const elapsed = end - start;
if (elapsed < loadDelay) await new Promise(resolve => setTimeout(resolve, loadDelay - elapsed));
}
if (contiguous) {
const orderMap = tensor_file_indices.reduce((acc, id, index) => {acc[id] = index; return acc;}, {});
contiguousFiles.sort((a, b) => orderMap[a.index] - orderMap[b.index]); // glue files together in the right order
await sendMessageToWorker(model, {header: "load_state_dict", data: contiguousFiles});
}
completed = 0;
}
// initialize empty kv_caches, which were part of exported model's state_dict, but which we didn't want to package/download
if (window.BACKEND === "WASM") {
for (const [k, v] of Object.entries(state_dict).filter(([_, v]) => v.empty === true)) {
v.parts[0].file_start_pos = 0;
const file = { parts: v.parts, size: v.size, bytes: new Uint8Array(v.size).fill(0) };
await loadFileToStateDict(file);
}
}
return model;
};
document.addEventListener("alpine:init", () => {
Alpine.data("state", () => ({
// loadingMessage updates the user on page load progress, including weights download and decompression
// if loadingMessage is not '', then prompt box will be hidden: this is default behavior on page load
placeholderText: "Generating...",
loadingMessage: `Loading ${window.BACKEND} model:`,
// model
nets: {},
tokenizer: null,
max_context: 1024,
lastSeenToks: [],
progress: null,
async init() {
var device = null;
var webgpuErrorMessage = null;
if (window.BACKEND === "WebGPU") {
try {
device = await getDevice.call(this);
console.log("WebGPU device initialized");
} catch (error) {
window.BACKEND = "WASM";
console.log(`error: ${error}\nFailed to launch WebGPU. Loading WASM model instead...`); // return;
webgpuErrorMessage = this.loadingMessage;
}
}
window.MODEL_BASE_URL = (window.BACKEND === "WebGPU" && !window.isMobile) ? window.PC_MODEL_BASE_URL : window.MOBILE_MODEL_BASE_URL;
this.max_context = (window.BACKEND === "WebGPU" && !window.isMobile) ? window.PC_MAX_CONTEXT : window.MOBILE_MAX_CONTEXT;
const kernelsReady = (async () => {
if (window.BACKEND === "WASM") {var exports = await import(`./net_clang.js?version=${Date.now()}`);}
else if (window.BACKEND === "WebGPU" && !window.isMobile) {var exports = await import(`${PC_WEBGPU_EXPORT}?version=${Date.now()}`);}
else if (window.BACKEND === "WebGPU" && window.isMobile) {var exports = await import(`${MOBILE_WEBGPU_EXPORT}?version=${Date.now()}`);}
self.transformer = exports.default;
})();
const response = await fetch(`${window.MODEL_BASE_URL}/net_metadata.json`);
// TODO: cache metadata (and everything else, including tokenizer)
// TODO: use service worker to reload page when offline
const data = await response.json();
data.metadata.files = data.metadata.files.map((file, index) => ({...file, index}));
const state_dict = data.metadata.state_dict;
/*
- allocating memory to WASM on mobile has longstanding issues: https://github.com/WebAssembly/design/issues/1397
- the below pattern, while yielding a succesfully-functioning model when it doesn't crash, causes regular crashes on iOS Safari (iphone 15 iOS 18.3):
- call WASM malloc (to fit all tensors, or one per tensor) for all tensors up front, then load tensor byte chunks into the buffers in random order
- the below pattern has been stable on iOS Safari (iphone 15 iOS 18.3):
- call only one WASM malloc at a time before filling the allocated bytes, as small as possible (malloc up to 256 MiB has been tested)
- fill the malloc'd memory in linear order from start to end (what has been tested is calling wasm.HEAPU8.set on 16 MiB chunks from start to end)
- use ALLOW_MEMORY_GROWTH=1 in wasm compilation, minimize initial memory
- additional considerations affecting loading design, for WASM:
- it seems that copying bytes into wasm memory cannot be zero-copy without sharedarraybuffer, which isn't currently used due to increased hosting complexity
- non-zero copies create memory pressure, which is not reliably capped because of lack of control over garbage collection
- to minimize peak memory pressure if GC is delayed, we process (i.e. download + copy into WASM) large tensors (> 16 MiB) one at a time, in descending size order
*/
data.tensor_file_groups = []; // see above: for WASM, limit processing of multi-file Tensors to one at a time, in descending order based on Tensor size
const unsplit_tensors = [];
const sortedEntries = Object.entries(state_dict).sort(([, objA], [, objB]) => objB.size - objA.size);
let totalSize = 0;
const seen = new Set();
for (const [k,v] of sortedEntries) {
const files_in_tensor = [];
for (const part of v.parts) {
part.key = k;
if (part.empty) state_dict[k].empty = true; // assumes no other parts of this weight exist and are non-empty
else {
const file = data.metadata.files[part.file];
if (!seen.has(file.index)) {
seen.add(file.index);
files_in_tensor.push(file);
}
totalSize += part.size;
part.dtype = v.dtype;
if (!data.metadata.files[part.file].parts) data.metadata.files[part.file].parts = [];
data.metadata.files[part.file].size ??= 0;
data.metadata.files[part.file].size += part.size;
data.metadata.files[part.file].parts.push(part);
}
}
if (files_in_tensor.length > 1) data.tensor_file_groups.push({contiguous: true, files: files_in_tensor}); // [tensorN_file0, tensorN_file1, ...]
else if (files_in_tensor.length > 0) unsplit_tensors.push(files_in_tensor[0]);
}
data.tensor_file_groups.push({contiguous: false, files: unsplit_tensors});
data.totalSize = totalSize;
totalSize = totalSize / 0.8; // give space in progress bar for initializing model bufs, and tokenizer
this.progress = makeProgress.call(this, totalSize); // creates closure with totalSize
try {
this.progress(0.01 * totalSize, "Loading tokenizer:");
const wasmResponse = await fetch(`${window.MODEL_BASE_URL}/tiktoken_bg.wasm`);
this.progress(0.01 * totalSize);
const wasmBytes = await wasmResponse.arrayBuffer();
await tiktokenReady;
await window.tiktokenInit((imports) => WebAssembly.instantiate(wasmBytes, imports));
this.progress(0.01 * totalSize);
this.tokenizer = await createTokenizer(`${window.MODEL_BASE_URL}/llama3-2.tiktoken`);
const tokenizer_works = (new TextDecoder().decode(this.tokenizer.decode(this.tokenizer.encode("hello world"))) === "hello world");
console.log("tokenizer works:", tokenizer_works)
this.progress(0.01 * totalSize);
} catch (error) {this.progress(-1, `Error launching tokenizer: ${error}`); console.log(error); return;}
try {
const loadModelMessage = (webgpuErrorMessage) ? webgpuErrorMessage : `Loading ${window.BACKEND} model:`
this.progress(0, loadModelMessage);
await kernelsReady;
const model = await load_state_dict(data, device, this.progress);
if (window.BACKEND === "WebGPU") {
this.nets = {"transformer": model};
}
else if (window.BACKEND === "WASM") {
const msg = await sendMessageToWorker(model, {header: "load_state_dict", data: "done"});
this.nets = {"transformer": async (tok, start_pos) => sendMessageToWorker(model, {header: "token", data: [tok, start_pos]})};
}
this.progress(0.01 * totalSize, `Launching ${window.BACKEND} model:`);
this.loadingMessage = ""; // Triggers removal of loading bar, display of prompt box
} catch (error) {this.progress(-1, `Error launching model: ${error}`); console.log(error); return;}
},
// current state
cstate: {
time: null,
messages: [],
},
// historical state
histories: JSON.parse(localStorage.getItem("histories")) || [],
home: 0,
generating: false,
maxContextReached: false,
cancelGeneration: false,
endpoint: `${window.location.origin}/v1`,
// performance tracking
time_till_first: 0,
tokens_per_second: 0,
total_tokens: 0,
max_context: 0,
removeHistory(cstate) {
const index = this.histories.findIndex((state) => {
return state.time === cstate.time;
});
if (index !== -1) {
this.histories.splice(index, 1);
localStorage.setItem("histories", JSON.stringify(this.histories));
}
},
async handleSend() {
const el = document.getElementById("input-form");
const value = el.value.trim();
if (!value) return;
if (this.generating) return;
this.maxContextReached = false;
this.placeholderText = "Generating...";
this.generating = true;
this.cancelGeneration = false;
if (this.home === 0) this.home = 1;
// ensure that going back in history will go back to home
window.history.pushState({}, "", window.TINYCHAT_ROOT || "/");
// add message to list
this.cstate.messages.push({ role: "user", content: value });
// clear textarea
el.value = "";
el.style.height = "auto";
el.style.height = el.scrollHeight + "px";
// reset performance tracking
const prefill_start = Date.now();
let start_time = 0;
let tokens = 0;
this.tokens_per_second = 0;
let gottenFirstChunk = false;
try {
for await (
const chunk of this.openaiChatCompletion(this.cstate.messages)
) {
if (!gottenFirstChunk) {
this.cstate.messages.push({ role: "assistant", content: "" });
gottenFirstChunk = true;
}
// add chunk to the last message
// TODO: handle localStorage overflow
// possible example: this.cstate.messages[...] was undefined when trying to prompt within an old cstate (chat session)
this.cstate.messages[this.cstate.messages.length - 1].content += chunk;
// calculate performance tracking
tokens += 1;
this.total_tokens += 1;
if (start_time === 0) {
start_time = Date.now();
this.time_till_first = start_time - prefill_start;
} else {
const diff = Date.now() - start_time;
if (diff > 0) {
this.tokens_per_second = tokens / (diff / 1000);
}
}
this.checkMaxContext(this.total_tokens);
if (this.cancelGeneration) break;
}
} finally {
// update the state in histories or add it if it doesn't exist
const index = this.histories.findIndex((cstate) => {
return cstate.time === this.cstate.time;
});
this.cstate.time = Date.now();
if (index !== -1) {
// update the time
this.histories[index] = this.cstate;
} else {
this.histories.push(this.cstate);
}
// update in local storage
localStorage.setItem("histories", JSON.stringify(this.histories));
if (!this.maxContextReached) this.generating = false;
if (this.cancelGeneration && !this.maxContextReached) this.cstate = { time: null, messages: [] };
}
},
async handleEnter(event) {
// if shift is not pressed
if (!event.shiftKey) {
event.preventDefault();
await this.handleSend();
}
},
updateTotalTokens(messages) {
try {
let toks = [this.tokenizer.bos_id];
messages.forEach((message) => {
if (!message.role || !message.content) {
throw new Error("Each message must have a 'role' and 'content' property.");
}
toks = toks.concat(this.tokenizer.encodeMessage(message.role, message.content));
if (messages.length > 0 && messages[messages.length - 1].role === "user") {
toks = toks.concat(this.tokenizer.encodeRole("assistant"));
}
this.total_tokens = toks.length;
});
} catch (error) {
console.error("Error updating total tokens:", error);
}
},
checkMaxContext(num_tokens) {
if (num_tokens >= this.max_context) {
this.cancelGeneration = true;
this.maxContextReached = true;
this.placeholderText = `Max context reached: ${this.max_context} tokens`;
}
},
async *openaiChatCompletion(messages) {
let tokens = [this.tokenizer.bos_id];
for (const message of messages) {
tokens = tokens.concat(this.tokenizer.encodeMessage(message.role, message.content));
}
tokens = tokens.concat(this.tokenizer.encodeRole("assistant"));
this.checkMaxContext(tokens.length); // don't waste time prefilling if we know we're over the token limit
let startPos = 0
const prefillToks = tokens.slice(0, -1);
// Skip the largest possible sequence of tokens already represented at the beginning of the model's kv caches
for (let i=0; i <= prefillToks.length; i++) {
startPos = i;
if (i == prefillToks.length) break;
if (i == this.lastSeenToks.length) break;
if (prefillToks[i] !== this.lastSeenToks[i]) break;
}
//this.lastSeenToks = prefillToks;
//prefillToks = prefillToks.slice(startPos);
const unprocessedPrefillToks = prefillToks.slice(startPos);
this.lastSeenToks = prefillToks.slice(0, startPos);
this.progress = makeProgress(unprocessedPrefillToks.length);
this.loadingMessage = (window.BACKEND === "WebGPU") ? "Reading input:" : "Loading (enable WebGPU for speed):";
this.progress(0, this.loadingMessage);
for (const tok of unprocessedPrefillToks) {
if (this.cancelGeneration) {this.loadingMessage=""; return;}
if (window.BACKEND === "WebGPU") {await this.nets["transformer"](new Int32Array([tok]), new Int32Array([startPos]));}
else {await this.nets["transformer"](tok, startPos);}
this.lastSeenToks.push(tok)
startPos += 1;
this.progress(1);
}
this.loadingMessage = ""; // hides progress bar
let lastTok = tokens[tokens.length - 1];
while (true) {
if (window.BACKEND === "WebGPU") {var tok = await this.nets["transformer"](new Int32Array([lastTok]), new Int32Array([startPos])); tok = tok[0][0];}
else {var tok = await this.nets["transformer"](lastTok, startPos);}
this.lastSeenToks.push(lastTok); // lets us skip prefilling with these tokens at the next prompt in this chain
startPos += 1;
lastTok = tok;
if (this.tokenizer.stop_tokens.has(lastTok)) break;
yield new TextDecoder().decode(this.tokenizer.decode([lastTok]));
}
},
}));
});
const { markedHighlight } = globalThis.markedHighlight;
marked.use(markedHighlight({
langPrefix: "hljs language-",
highlight(code, lang, _info) {
const language = hljs.getLanguage(lang) ? lang : "plaintext";
return hljs.highlight(code, { language }).value;
},
}));
// **** eventsource-parser ****
class EventSourceParserStream extends TransformStream {
constructor() {
let parser;
super({
start(controller) {
parser = createParser((event) => {
if (event.type === "event") {
controller.enqueue(event);
}
});
},
transform(chunk) {
parser.feed(chunk);
},
});
}
}
function createParser(onParse) {
let isFirstChunk;
let buffer;
let startingPosition;
let startingFieldLength;
let eventId;
let eventName;
let data;
reset();
return {
feed,
reset,
};
function reset() {
isFirstChunk = true;
buffer = "";
startingPosition = 0;
startingFieldLength = -1;
eventId = void 0;
eventName = void 0;
data = "";
}
function feed(chunk) {
buffer = buffer ? buffer + chunk : chunk;
if (isFirstChunk && hasBom(buffer)) {
buffer = buffer.slice(BOM.length);
}
isFirstChunk = false;
const length = buffer.length;
let position = 0;
let discardTrailingNewline = false;
while (position < length) {
if (discardTrailingNewline) {
if (buffer[position] === "\n") {
++position;
}
discardTrailingNewline = false;
}
let lineLength = -1;
let fieldLength = startingFieldLength;
let character;
for (
let index = startingPosition;
lineLength < 0 && index < length;
++index
) {
character = buffer[index];
if (character === ":" && fieldLength < 0) {
fieldLength = index - position;
} else if (character === "\r") {
discardTrailingNewline = true;
lineLength = index - position;
} else if (character === "\n") {
lineLength = index - position;
}
}
if (lineLength < 0) {
startingPosition = length - position;
startingFieldLength = fieldLength;
break;
} else {
startingPosition = 0;
startingFieldLength = -1;
}
parseEventStreamLine(buffer, position, fieldLength, lineLength);
position += lineLength + 1;
}
if (position === length) {
buffer = "";
} else if (position > 0) {
buffer = buffer.slice(position);
}
}
function parseEventStreamLine(lineBuffer, index, fieldLength, lineLength) {
if (lineLength === 0) {
if (data.length > 0) {
onParse({
type: "event",
id: eventId,
event: eventName || void 0,
data: data.slice(0, -1),
// remove trailing newline
});
data = "";
eventId = void 0;
}
eventName = void 0;
return;
}
const noValue = fieldLength < 0;
const field = lineBuffer.slice(
index,
index + (noValue ? lineLength : fieldLength),
);
let step = 0;
if (noValue) {
step = lineLength;
} else if (lineBuffer[index + fieldLength + 1] === " ") {
step = fieldLength + 2;
} else {
step = fieldLength + 1;
}
const position = index + step;
const valueLength = lineLength - step;
const value = lineBuffer.slice(position, position + valueLength).toString();
if (field === "data") {
data += value ? "".concat(value, "\n") : "\n";
} else if (field === "event") {
eventName = value;
} else if (field === "id" && !value.includes("\0")) {
eventId = value;
} else if (field === "retry") {
const retry = parseInt(value, 10);
if (!Number.isNaN(retry)) {
onParse({
type: "reconnect-interval",
value: retry,
});
}
}
}
}
const BOM = [239, 187, 191];
function hasBom(buffer) {
return BOM.every((charCode, index) => buffer.charCodeAt(index) === charCode);
}
const PAT_STR = "(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\\p{L}\\p{N}]?\\p{L}+|\\p{N}{1,3}| ?[^\\s\\p{L}\\p{N}]+[\\r\\n]*|\\s*[\\r\\n]+|\\s+(?!\\S)|\\s+";
async function createTokenizer(bpeUrl) {
const num_base_tokens = 128000;
const special_tokens = {
"<|begin_of_text|>": 128000,
"<|end_of_text|>": 128001,
"<|start_header_id|>": 128006,
"<|end_header_id|>": 128007,
"<|eot_id|>": 128009
};
const model = await window.tiktokenLoad({
"load_tiktoken_bpe": bpeUrl,
"special_tokens": special_tokens,
"pat_str": PAT_STR
});
const tokenizer = new window.Tiktoken(model.bpe_ranks, model.special_tokens, model.pat_str)
return {
get bos_id() {
return special_tokens["<|begin_of_text|>"];
},
get stop_tokens() {
return new Set([
special_tokens["<|end_of_text|>"],
special_tokens["<|eot_id|>"],
]);
},
decode(toks) {
const filtered = toks.filter((t) => t < num_base_tokens);
return tokenizer.decode(filtered);
},
encode(text, allow_special = false) {
const allowedSpecial = allow_special ? "all" : new Set();
const disallowedSpecial = new Set();
return tokenizer.encode(text, allowedSpecial, disallowedSpecial);
},
encodeRole(role) {
const tokens = [];
tokens.push(special_tokens["<|start_header_id|>"]);
tokens.push(...this.encode(role));
tokens.push(special_tokens["<|end_header_id|>"]);
tokens.push(...this.encode("\n\n"));
return tokens;
},
encodeMessage(role, content) {
const roleTokens = this.encodeRole(role);
const contentTokens = this.encode(content.trim());
return [...roleTokens, ...contentTokens, special_tokens["<|eot_id|>"]];
},
};
}
@@ -0,0 +1,11 @@
#!/usr/bin/env bash
cd "$(dirname "$0")"
npm init -y && \
npm install --save-dev webpack webpack-cli && \
npm install tiktoken && \
jq '.scripts.build = "webpack"' package.json > package.tmp.json && \
mv package.tmp.json package.json && \
npm run build && \
mv dist/*.wasm ./tiktoken_bg.wasm && \
mv dist/* ./ && \
rm -rf dist node_modules package-lock.json package.json
@@ -0,0 +1,5 @@
// Force Webpack to copy the WASM
import 'tiktoken/tiktoken_bg.wasm';
import { init, get_encoding, encoding_for_model, Tiktoken } from 'tiktoken/init';
import { load } from 'tiktoken/load';
export { init, get_encoding, encoding_for_model, Tiktoken, load };
@@ -0,0 +1,25 @@
const path = require("path");
module.exports = {
mode: "production",
entry: "./tiktoken-export.js",
output: {
filename: "tiktoken.js",
path: path.resolve(__dirname, "dist"),
library: {
type: "module"
}
},
experiments: {
outputModule: true,
asyncWebAssembly: true
},
module: {
rules: [
{
test: /\.wasm$/,
type: "asset/resource",
}
]
}
};
@@ -0,0 +1,62 @@
const kernelsReady = (async () => {
// can't get browser to use updated versions except with cache-busting query string
const exports = await import(`./net_clang.js?version=${Date.now()}`);
Object.assign(self, exports);
})();
async function init(event) {
await kernelsReady;
self.model = await self.transformer();
self.addEventListener("message", loadStateDict);
self.removeEventListener("message", init);
self.postMessage("success");
}
function loadStateDict(event) {
if (event.data === "done") {
self.addEventListener("message", inference);
self.removeEventListener("message", loadStateDict);
}
else {
if (event.data.length > 1) {
// the bytes from files are set contiguously in WASM memory
const malloc_size = event.data.reduce((sum, file) => sum + file.bytes.length, 0);
const malloc_ptr = self.model.wasm._malloc(malloc_size);
let cursor = 0;
for (const file of event.data) {
self.model.wasm.HEAPU8.set(file.bytes, malloc_ptr + cursor);
for (const part of file.parts) {
if (part.target_start_pos === 0) {
// tell WASM code where the tensor is in memory
self.model.wasm._set_buf(self.transformer_name_to_id[part.key], malloc_ptr + cursor);
}
cursor += part.size;
}
file.bytes = null;
}
}
else {
// the bytes from files are not guaranteed to be set contiguously in WASM memory
const file = event.data[0];
const malloc_ptr = self.model.wasm._malloc(file.size);
self.model.wasm.HEAPU8.set(file.bytes, malloc_ptr);
for (const part of file.parts) {
if (part.target_start_pos === 0) {
self.model.wasm._set_buf(self.transformer_name_to_id[part.key], malloc_ptr + part.file_start_pos);
}
}
file.bytes = null;
}
}
self.postMessage("success");
}
function inference(event) {
const [tok, start_pos] = event.data;
const int32tok = new Int32Array([tok]);
const model_out = self.model.run(new Uint8Array(int32tok.buffer), start_pos);
const int32nextTok = new Int32Array(model_out[0].buffer);
self.postMessage(int32nextTok[0]);
}
self.addEventListener("message", init);