mirror of
https://github.com/joelwmale/webhook-action.git
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74 lines
2.4 KiB
JavaScript
74 lines
2.4 KiB
JavaScript
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//compile doT templates to js functions
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'use strict';
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var glob = require('glob')
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, fs = require('fs')
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, path = require('path')
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, doT = require('dot')
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, beautify = require('js-beautify').js_beautify;
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var defsRootPath = process.argv[2] || path.join(__dirname, '../lib');
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var defs = {};
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var defFiles = glob.sync('./dot/**/*.def', { cwd: defsRootPath });
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defFiles.forEach(function (f) {
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var name = path.basename(f, '.def');
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defs[name] = fs.readFileSync(path.join(defsRootPath, f));
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});
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var filesRootPath = process.argv[3] || path.join(__dirname, '../lib');
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var files = glob.sync('./dot/**/*.jst', { cwd: filesRootPath });
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var dotjsPath = path.join(filesRootPath, './dotjs');
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try { fs.mkdirSync(dotjsPath); } catch(e) {}
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console.log('\n\nCompiling:');
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var FUNCTION_NAME = /function\s+anonymous\s*\(it[^)]*\)\s*{/;
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var OUT_EMPTY_STRING = /out\s*\+=\s*'\s*';/g;
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var ISTANBUL = /'(istanbul[^']+)';/g;
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var ERROR_KEYWORD = /\$errorKeyword/g;
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var ERROR_KEYWORD_OR = /\$errorKeyword\s+\|\|/g;
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var VARS = [
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'$errs', '$valid', '$lvl', '$data', '$dataLvl',
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'$errorKeyword', '$closingBraces', '$schemaPath',
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'$validate'
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];
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files.forEach(function (f) {
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var keyword = path.basename(f, '.jst');
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var targetPath = path.join(dotjsPath, keyword + '.js');
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var template = fs.readFileSync(path.join(filesRootPath, f));
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var code = doT.compile(template, defs);
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code = code.toString()
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.replace(OUT_EMPTY_STRING, '')
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.replace(FUNCTION_NAME, 'function generate_' + keyword + '(it, $keyword, $ruleType) {')
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.replace(ISTANBUL, '/* $1 */');
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removeAlwaysFalsyInOr();
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VARS.forEach(removeUnusedVar);
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code = "'use strict';\nmodule.exports = " + code;
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code = beautify(code, { indent_size: 2 }) + '\n';
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fs.writeFileSync(targetPath, code);
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console.log('compiled', keyword);
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function removeUnusedVar(v) {
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v = v.replace(/\$/g, '\\$$');
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var regexp = new RegExp(v + '[^A-Za-z0-9_$]', 'g');
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var count = occurrences(regexp);
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if (count == 1) {
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regexp = new RegExp('var\\s+' + v + '\\s*=[^;]+;|var\\s+' + v + ';');
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code = code.replace(regexp, '');
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}
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}
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function removeAlwaysFalsyInOr() {
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var countUsed = occurrences(ERROR_KEYWORD);
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var countOr = occurrences(ERROR_KEYWORD_OR);
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if (countUsed == countOr + 1) code = code.replace(ERROR_KEYWORD_OR, '');
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}
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function occurrences(regexp) {
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return (code.match(regexp) || []).length;
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}
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});
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