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https://github.com/direct-img/vibegif.direct-img.link.git
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30 lines
2.1 KiB
JavaScript
30 lines
2.1 KiB
JavaScript
// fills <!--gallery--> in index.html from whatever is in public/, and every <!--count--> with how many tiles that is
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// one tile per name: shows the .webp (or the .gif if that's all there is) and links every format
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// tiles are split into sections by the gen/<section>/ folder they come from, with a divider between
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// hand-made files that have no gen file go in the first section
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// only files inside a subject folder are tiles, so root files like favicon.webp stay out
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// tile images get ?v=<hash> so browsers drop old copies when a file changes, links stay clean for hotlinking
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import{readdirSync as rd,readFileSync as rf}from'fs'
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import{createHash}from'crypto'
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const sections=['bw','color','anime','manga','mini','minicolor']
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const hidden=['cat/tail.gif'] // same drawing as cat/wag.gif, kept so old links still work
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const walk=d=>rd(d,{withFileTypes:true}).flatMap(e=>e.isDirectory()?walk(`${d}/${e.name}`):`${d}/${e.name}`)
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const dims=(b,x)=>x=='gif'?[b.readUInt16LE(6),b.readUInt16LE(8)]:[b.readUIntLE(24,3)+1,b.readUIntLE(27,3)+1]
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const gallery=()=>{
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const sec={},g=Object.fromEntries(sections.map(s=>[s,{}]))
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for(const f of walk('gen').filter(f=>f.endsWith('.js'))){const[,s,...r]=f.split('/');sec[r.join('/').slice(0,-3)]=s}
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for(const f of walk('public').filter(f=>/^public\/[^/]+\/.+\.(webp|gif)$/.test(f)).sort()){
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const p=f.slice(7),x=p.split('.').pop(),id=p.slice(0,-x.length-1)
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if(!hidden.includes(p))(g[sec[id]??sections[0]][id]??={})[x]=f
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}
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return sections.map(s=>Object.entries(g[s]).map(([id,fm])=>{
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const x=fm.webp?'webp':'gif',b=rf(fm[x]),[w,h]=dims(b,x),v=createHash('md5').update(b).digest('hex').slice(0,8)
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const links=['webp','gif'].filter(k=>fm[k]).map(k=>`<a href="/${id}.${k}">${k}</a>`).join(' ')
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return`<figure><a href="/${id}.${x}"><img src="/${id}.${x}?v=${v}" alt="${id.replace('/',' ')}" width="${w}" height="${h}" loading="lazy" decoding="async"></a><figcaption>${links}</figcaption></figure>`
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}).join('\n')).filter(Boolean).join('\n<hr>\n')
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}
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export default{plugins:[{name:'gallery',transformIndexHtml:h=>{
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const g=gallery()
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return h.replace('<!--gallery-->',g).replaceAll('<!--count-->',g.split('<figure>').length-1)
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}}]}
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