//compile doT templates to js functions 'use strict';
var glob = require('glob')
, fs = require('fs') , path = require('path') , doT = require('dot') , beautify = require('js-beautify').js_beautify;
var defsRootPath = process.argv || path.join(__dirname, '../lib');
var defs = {}; var defFiles = glob.sync('./dot/*/.def', { cwd: defsRootPath }); defFiles.forEach(function (f) {
var name = path.basename(f, '.def'); defs[name] = fs.readFileSync(path.join(defsRootPath, f));
});
var filesRootPath = process.argv || path.join(__dirname, '../lib'); var files = glob.sync('./dot/*/.jst', { cwd: filesRootPath });
var dotjsPath = path.join(filesRootPath, './dotjs'); try { fs.mkdirSync(dotjsPath); } catch(e) {}
console.log('nnCompiling:');
var FUNCTION_NAME = /functions+anonymouss*(it*)s*{/; var OUT_EMPTY_STRING = /outs*+=s*'s*';/g; var ISTANBUL = /'(istanbul+)';/g; var ERROR_KEYWORD = /$errorKeyword/g; var ERROR_KEYWORD_OR = /$errorKeywords+||/g; var VARS = [
'$errs', '$valid', '$lvl', '$data', '$dataLvl', '$errorKeyword', '$closingBraces', '$schemaPath', '$validate'
];
files.forEach(function (f) {
var keyword = path.basename(f, '.jst'); var targetPath = path.join(dotjsPath, keyword + '.js'); var template = fs.readFileSync(path.join(filesRootPath, f)); var code = doT.compile(template, defs); code = code.toString() .replace(OUT_EMPTY_STRING, '') .replace(FUNCTION_NAME, 'function generate_' + keyword + '(it, $keyword, $ruleType) {') .replace(ISTANBUL, '/* $1 */'); removeAlwaysFalsyInOr(); VARS.forEach(removeUnusedVar); code = "'use strict';\nmodule.exports = " + code; code = beautify(code, { indent_size: 2 }) + '\n'; fs.writeFileSync(targetPath, code); console.log('compiled', keyword); function removeUnusedVar(v) { v = v.replace(/\$/g, '\\$$'); var regexp = new RegExp(v + '[^A-Za-z0-9_$]', 'g'); var count = occurrences(regexp); if (count == 1) { regexp = new RegExp('var\\s+' + v + '\\s*=[^;]+;|var\\s+' + v + ';'); code = code.replace(regexp, ''); } } function removeAlwaysFalsyInOr() { var countUsed = occurrences(ERROR_KEYWORD); var countOr = occurrences(ERROR_KEYWORD_OR); if (countUsed == countOr + 1) code = code.replace(ERROR_KEYWORD_OR, ''); } function occurrences(regexp) { return (code.match(regexp) || []).length; }
});