@floydophone/zokrates-js/gulpfile.js

JavaScript bindings for [ZoKrates](https://github.com/Zokrates/ZoKrates) project.

/** general */
const gulp = require('gulp');
const dree = require('dree');
const fs = require('fs');
const path = require('path');
const toml = require('toml');

/** stdlib constants */
const stdlibRoot = '../zokrates_stdlib/stdlib';
const stdlibOutput = 'stdlib.json';

const options = {
    extensions: ['zok']
};

/**
 * Serializes standard library directory tree to a json file.
 */
gulp.task('stdlib', (done) => {
    var stdlib = {};
    dree.scan(stdlibRoot, options, function (file) {
        const content = fs.readFileSync(file.path).toString();
        stdlib[file.relativePath] = content;
    });

    fs.writeFileSync(path.resolve(__dirname, stdlibOutput), JSON.stringify(stdlib));
    done();
});

gulp.task('metadata', (done) => {
    const config = toml.parse(fs.readFileSync('../zokrates_cli/Cargo.toml').toString());
    const metadata = JSON.stringify({
        version: config.package.version
    });
    fs.writeFileSync(path.resolve(__dirname,  'metadata.json'), metadata);
    done();
});

gulp.task('setup', gulp.parallel('stdlib', 'metadata'));