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postbuild.js
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postbuild.js
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const site = require('./metadata.js');
const fs = require("fs");
const replace = require('replace-in-file');
const replaceFs = (targetFile, from, to) => {
try {
let text = fs.readFileSync(targetFile, 'utf8');
text = text.replace(from, to);
fs.writeFileSync(targetFile, text);
} catch(e) {
console.log('Error:', e.stack);
process.exit(-1);
}
};
// Twitter Card
let twitterCard = "";
twitterCard = twitterCard.concat(`\t<meta name="twitter:card" content="summary_large_image" />\n`);
if (!!site.twitterUsername)
twitterCard = twitterCard.concat(`\t<meta name="twitter:creator" content="@${site.twitterUsername}" />\n`);
if (!!site.twitterUsername)
twitterCard = twitterCard.concat(`\t<meta name="twitter:site" content="@${site.twitterUsername}" />\n`);
twitterCard = twitterCard.concat(`\t<meta name="twitter:title" content="${site.name}" />\n`);
twitterCard = twitterCard.concat(`\t<meta name="twitter:description" content="${site.description}" />\n`);
twitterCard = twitterCard.concat(`\t<meta name="twitter:url" content="${site.url}" />\n`);
twitterCard = twitterCard.concat(`\t<meta name="twitter:image" content="${site.image}" />`);
replaceFs('./public/index.html', '\t<!-- Twitter Card Slot -->', twitterCard);
// Open Graph
let openGraph = "";
openGraph = openGraph.concat(`\t<meta name="og:type" content="website" />\n`);
openGraph = openGraph.concat(`\t<meta name="og:title" content="${site.name}" />\n`);
openGraph = openGraph.concat(`\t<meta name="og:description" content="${site.description}" />\n`);
openGraph = openGraph.concat(`\t<meta name="og:url" content="${site.url}" />\n`);
openGraph = openGraph.concat(`\t<meta name="og:image" content="${site.image}" />\n`);
replaceFs('./public/index.html', '\t<!-- Open Graph Slot -->', openGraph);
// Cache Busting
const randomString = (len, charSet) => {
charSet = charSet || 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
var randomString = '';
for (var i = 0; i < len; i++) {
var char = Math.floor(Math.random() * charSet.length);
randomString += charSet.substring(char, char + 1);
}
return randomString;
};
const hash = randomString(12);
fs.renameSync('public/build/bundle.[hash].css', `./public/build/bundle.${hash}.css`, e => { if ( e ) console.error('Error: ' + e); });
fs.renameSync('public/build/bundle.[hash].js', `./public/build/bundle.${hash}.js`, e => { if ( e ) console.error('Error: ' + e); });
const options = {
files: './public/index.html',
from: /\[hash\]/g,
to: hash,
};
replace(options, (error, _) => {
if (error) {
return console.error('Error:', error);
}
});