all: do not commit generated JS/CSS to source control (#148)

Closes #125
Closes #40

Among other things, this moves all of the asset generation to run within
the context of an npm script. Developer documentation stubs have been
added so that people can get started more easily.

The top-level Dockerfile (which is no longer used in production) has
been removed as its presence has been causing confusion. This changeset
will break it anyways.

These changes will make for less "repo churn" as the static assets are
built and rebuilt, at the cost of making the build step more complicated
for downstream packagers. If this becomes a burden, we can explore
making a "release tarball" that contains pre-massaged outputs.

web/build.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+esbuild js/main.mjs --sourcemap --bundle --minify --outfile=static/js/main.mjs
+gzip -f -k static/js/main.mjs
+zstd -f -k --ultra -22 static/js/main.mjs
+brotli -fZk static/js/main.mjs

web/embed.go

@@ -3,10 +3,6 @@ package web
 import "embed"
 
 //go:generate go tool github.com/a-h/templ/cmd/templ generate
-//go:generate esbuild js/main.mjs --sourcemap --bundle --minify --outfile=static/js/main.mjs
-//go:generate gzip -f -k static/js/main.mjs
-//go:generate zstd -f -k --ultra -22 static/js/main.mjs
-//go:generate brotli -fZk static/js/main.mjs
 
 var (
 	//go:embed static

web/static/js/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

web/static/js/main.mjs

@@ -1,2 +0,0 @@
-(()=>{function p(r,n=5,t=navigator.hardwareConcurrency||1){return console.debug("fast algo"),new Promise((e,o)=>{let s=URL.createObjectURL(new Blob(["(",y(),")()"],{type:"application/javascript"})),a=[];for(let i=0;i<t;i++){let c=new Worker(s);c.onmessage=d=>{a.forEach(u=>u.terminate()),c.terminate(),e(d.data)},c.onerror=d=>{c.terminate(),o()},c.postMessage({data:r,difficulty:n,nonce:i,threads:t}),a.push(c)}URL.revokeObjectURL(s)})}function y(){return function(){let r=t=>{let e=new TextEncoder().encode(t);return crypto.subtle.digest("SHA-256",e.buffer)};function n(t){return Array.from(t).map(e=>e.toString(16).padStart(2,"0")).join("")}addEventListener("message",async t=>{let e=t.data.data,o=t.data.difficulty,s,a=t.data.nonce,i=t.data.threads;for(;;){let c=await r(e+a),d=new Uint8Array(c),u=!0;for(let m=0;m<o;m++){let l=Math.floor(m/2),g=m%2;if((d[l]>>(g===0?4:0)&15)!==0){u=!1;break}}if(u){s=n(d),console.log(s);break}a+=i}postMessage({hash:s,data:e,difficulty:o,nonce:a})})}.toString()}function f(r,n=5,t=1){return console.debug("slow algo"),new Promise((e,o)=>{let s=URL.createObjectURL(new Blob(["(",b(),")()"],{type:"application/javascript"})),a=new Worker(s);a.onmessage=i=>{a.terminate(),e(i.data)},a.onerror=i=>{a.terminate(),o()},a.postMessage({data:r,difficulty:n}),URL.revokeObjectURL(s)})}function b(){return function(){let r=n=>{let t=new TextEncoder().encode(n);return crypto.subtle.digest("SHA-256",t.buffer).then(e=>Array.from(new Uint8Array(e)).map(o=>o.toString(16).padStart(2,"0")).join(""))};addEventListener("message",async n=>{let t=n.data.data,e=n.data.difficulty,o,s=0;do o=await r(t+s++);while(o.substring(0,e)!==Array(e+1).join("0"));s-=1,postMessage({hash:o,data:t,difficulty:e,nonce:s})})}.toString()}var L={fast:p,slow:f},w=(r="",n={})=>{let t=new URL(r,window.location.href);return Object.entries(n).forEach(e=>{let[o,s]=e;t.searchParams.set(o,s)}),t.toString()},h=(r,n)=>w(`/.within.website/x/cmd/anubis/static/img/${r}.webp`,{cacheBuster:n});(async()=>{let r=document.getElementById("status"),n=document.getElementById("image"),t=document.getElementById("title"),e=document.getElementById("spinner"),o=JSON.parse(document.getElementById("anubis_version").textContent);r.innerHTML="Calculating...";let{challenge:s,rules:a}=await fetch("/.within.website/x/cmd/anubis/api/make-challenge",{method:"POST"}).then(l=>{if(!l.ok)throw new Error("Failed to fetch config");return l.json()}).catch(l=>{throw t.innerHTML="Oh no!",r.innerHTML=`Failed to fetch config: ${l.message}`,n.src=h("sad",o),e.innerHTML="",e.style.display="none",l}),i=L[a.algorithm];if(!i){t.innerHTML="Oh no!",r.innerHTML="Failed to resolve check algorithm. You may want to reload the page.",n.src=h("sad",o),e.innerHTML="",e.style.display="none";return}r.innerHTML=`Calculating...<br/>Difficulty: ${a.report_as}`;let c=Date.now(),{hash:d,nonce:u}=await i(s,a.difficulty),m=Date.now();console.log({hash:d,nonce:u}),t.innerHTML="Success!",r.innerHTML=`Done! Took ${m-c}ms, ${u} iterations`,n.src=h("happy",o),e.innerHTML="",e.style.display="none",setTimeout(()=>{let l=window.location.href;window.location.href=w("/.within.website/x/cmd/anubis/api/pass-challenge",{response:d,nonce:u,redir:l,elapsedTime:m-c})},250)})();})();
-//# sourceMappingURL=main.mjs.map