69 lines
1.8 KiB
JavaScript
69 lines
1.8 KiB
JavaScript
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const { src, dest, task, series } = require('gulp');
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const clean = require('gulp-clean');
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const gzip = require('gulp-gzip');
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const inlineSource = require('gulp-inline-source');
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const rename = require('gulp-rename');
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const through2 = require('through2');
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const genHeader = (size, buf, len) => {
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let idx = 0;
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let data = 'unsigned char index_html[] = {\n ';
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for (const value of buf) {
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idx++;
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const current = value < 0 ? value + 256 : value;
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data += '0x';
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data += (current >>> 4).toString(16);
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data += (current & 0xf).toString(16);
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if (idx === len) {
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data += '\n';
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} else {
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data += idx % 12 === 0 ? ',\n ' : ', ';
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}
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}
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data += '};\n';
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data += `unsigned int index_html_len = ${len};\n`;
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data += `unsigned int index_html_size = ${size};\n`;
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return data;
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};
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let fileSize = 0;
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task('clean', () => {
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return src('dist', { read: false, allowEmpty: true }).pipe(clean());
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});
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task('inline', () => {
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const options = {
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compress: false,
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};
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return src('dist/index.html').pipe(inlineSource(options)).pipe(rename('inline.html')).pipe(dest('dist/'));
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});
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task(
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'default',
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series('inline', () => {
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return src('dist/inline.html')
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.pipe(
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through2.obj((file, enc, cb) => {
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fileSize = file.contents.length;
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return cb(null, file);
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})
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)
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.pipe(gzip())
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.pipe(
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through2.obj((file, enc, cb) => {
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const buf = file.contents;
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file.contents = Buffer.from(genHeader(fileSize, buf, buf.length));
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return cb(null, file);
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})
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)
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.pipe(rename('html.h'))
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.pipe(dest('../src/'));
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})
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);
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