1 |
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2 | 'use strict';
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3 |
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4 | var glob = require('glob')
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5 | , fs = require('fs')
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6 | , path = require('path')
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7 | , doT = require('dot')
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8 | , beautify = require('js-beautify').js_beautify;
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9 |
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10 | var defsRootPath = process.argv[2] || path.join(__dirname, '../lib');
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11 |
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12 | var defs = {};
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13 | var defFiles = glob.sync('./dot/**/*.def', { cwd: defsRootPath });
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14 | defFiles.forEach(function (f) {
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15 | var name = path.basename(f, '.def');
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16 | defs[name] = fs.readFileSync(path.join(defsRootPath, f));
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17 | });
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18 |
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19 | var filesRootPath = process.argv[3] || path.join(__dirname, '../lib');
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20 | var files = glob.sync('./dot/**/*.jst', { cwd: filesRootPath });
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21 |
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22 | var dotjsPath = path.join(filesRootPath, './dotjs');
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23 | try { fs.mkdirSync(dotjsPath); } catch(e) {}
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24 |
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25 | console.log('\n\nCompiling:');
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26 |
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27 | var FUNCTION_NAME = /function\s+anonymous\s*\(it[^)]*\)\s*{/;
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28 | var OUT_EMPTY_STRING = /out\s*\+=\s*'\s*';/g;
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29 | var ISTANBUL = /'(istanbul[^']+)';/g;
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30 | var ERROR_KEYWORD = /\$errorKeyword/g;
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31 | var ERROR_KEYWORD_OR = /\$errorKeyword\s+\|\|/g;
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32 | var VARS = [
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33 | '$errs', '$valid', '$lvl', '$data', '$dataLvl',
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34 | '$errorKeyword', '$closingBraces', '$schemaPath',
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35 | '$validate'
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36 | ];
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37 |
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38 | files.forEach(function (f) {
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39 | var keyword = path.basename(f, '.jst');
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40 | var targetPath = path.join(dotjsPath, keyword + '.js');
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41 | var template = fs.readFileSync(path.join(filesRootPath, f));
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42 | var code = doT.compile(template, defs);
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43 | code = code.toString()
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44 | .replace(OUT_EMPTY_STRING, '')
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45 | .replace(FUNCTION_NAME, 'function generate_' + keyword + '(it, $keyword, $ruleType) {')
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46 | .replace(ISTANBUL, '/* $1 */');
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47 | removeAlwaysFalsyInOr();
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48 | VARS.forEach(removeUnusedVar);
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49 | code = "'use strict';\nmodule.exports = " + code;
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50 | code = beautify(code, { indent_size: 2 }) + '\n';
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51 | fs.writeFileSync(targetPath, code);
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52 | console.log('compiled', keyword);
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53 |
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54 | function removeUnusedVar(v) {
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55 | v = v.replace(/\$/g, '\\$$');
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56 | var regexp = new RegExp(v + '[^A-Za-z0-9_$]', 'g');
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57 | var count = occurrences(regexp);
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58 | if (count == 1) {
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59 | regexp = new RegExp('var\\s+' + v + '\\s*=[^;]+;|var\\s+' + v + ';');
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60 | code = code.replace(regexp, '');
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61 | }
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62 | }
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63 |
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64 | function removeAlwaysFalsyInOr() {
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65 | var countUsed = occurrences(ERROR_KEYWORD);
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66 | var countOr = occurrences(ERROR_KEYWORD_OR);
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67 | if (countUsed == countOr + 1) code = code.replace(ERROR_KEYWORD_OR, '');
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68 | }
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69 |
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70 | function occurrences(regexp) {
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71 | return (code.match(regexp) || []).length;
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72 | }
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73 | });
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