58 lines
1.4 KiB
JavaScript
58 lines
1.4 KiB
JavaScript
var fs = require('fs');
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function getNames(part) {
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var basename = part.split('_')[0]; // e.g. template_crx -> template
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var sources = fs.readdirSync(`src/${basename}`);
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// Extract variables to be made global from source file list
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// e.g. ImageExpand from src/Images/ImageExpand.coffee
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// but not QR.post or eventPage
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var names = [];
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for (var f of sources) {
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var m = f.match(/^([$A-Z][$\w]*)\.coffee$/);
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if (m) names.push(m[1]);
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}
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return names;
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}
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function globalize(script, names) {
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var replaced = 0;
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script = script.replace(
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// matches declaration at the start of the function, not including helper function assignments
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/^( *var )(.*)(,\n *|;\n)/m,
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function(declaration, v, n, e) {
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replaced++;
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var n0 = names.sort().join(', ');
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if (n0 !== n) throw new Error(`expected variables (${n0}) found (${n})`);
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return (e[0] === ',') ? v : '';
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}
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);
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if (replaced !== 1) {
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throw new Error(`no declaration found`);
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}
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return script;
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}
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module.exports = {
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getNames: getNames,
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globalize: globalize
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};
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if (require.main === module) {
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(function() {
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for (var part of process.argv.slice(2)) {
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var filename = `tmp/${part}.js`;
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var names = getNames(part);
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var script = fs.readFileSync(filename, 'utf8').replace(/\r\n/g, '\n');
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script = globalize(script, names);
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fs.writeFileSync(filename, script);
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}
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})();
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}
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