node-fontnik/bin/font-inspect

#!/usr/bin/env node

var path = require('path');
var fs = require('fs');
var { queue } = require('d3-queue');
var glob = require('glob');
var argv = require('minimist')(process.argv.slice(2), {
    boolean: ['verbose', 'help']
});

if (argv.help) {
    console.log('usage: font-inspect --register=FONTDIRECTORY');
    console.log('option: --verbose');
    console.log('option: --register=FONTDIRECTORY');
    console.log('option: --face=SPECIFICFONTFACE');
    return;
}

if (argv.register && !process.env.FONTNIK_FONTS) {
    process.env.FONTNIK_FONTS = path.resolve(argv.register);
}

var fontnik = require('../index.js');
var faces = [];

if (argv.face) {
    faces = [argv.face];
} else {
    var register = path.resolve(argv.register);
    var pattern = '+(*ttf|*otf)';
    faces = glob.sync(pattern, { nodir: true, cwd: register, matchBase: true });
    faces = faces.map(function (f) {
        return path.join(register, f);
    })
}


if (argv.verbose) {
    console.error('resolved', faces);
}

var q = queue();

function getCoverage(face, cb) {
    fs.readFile(face, function (err, res) {
        if (err) return cb(err);
        fontnik.load(res, function (err, faces) {
            if (err) return cb(err);
            return cb(null, {
                face: [faces[0].family_name, faces[0].style_name].join(' '),
                coverage: faces[0].points
            });
        });
    });
}

faces.forEach(function (f) { q.defer(getCoverage, f) });

q.awaitAll(function (err, res) {
    if (err) throw err;
    process.stdout.write(JSON.stringify(res, null, 2));
});