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gulpfile.js
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gulpfile.js
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const gulp = require('gulp');
const fs = require('fs');
const path = require('path');
const jsyaml = require('js-yaml');
const SYNTAX_TASK = (function(){
const TASK_NAME = 'buildSyntax';
const SYNTAX_FILE = 'UnrealScript.YAML-tmLanguage';
const OUT_SYNTAX_FILE = 'UnrealScript.tmLanguage.json';
const SYNTAX_DIR = 'syntaxes/';
gulp.task(TASK_NAME, (cb) => {
const jsonData = jsyaml.safeLoad(fs.readFileSync(path.join(SYNTAX_DIR, SYNTAX_FILE), 'utf-8'));
const content = JSON.stringify(jsonData);
const outPath = path.join(SYNTAX_DIR, OUT_SYNTAX_FILE);
fs.writeFileSync(outPath, content);
if (cb) {
cb();
}
});
gulp.watch(path.join(SYNTAX_DIR, SYNTAX_FILE), (cb) => {
return gulp.task(TASK_NAME)(cb);
});
return TASK_NAME;
})();
const GRAMMAR_TASK = (function(){
const TASK_NAME = 'buildGrammar';
const GRAMMAR_Dir = 'grammars/';
const GRAMMAR_PATH = path.join(GRAMMAR_Dir, 'UCParser.g4');
const GRAMMAR_PATH2 = path.join(GRAMMAR_Dir, 'UCLexer.g4');
const GRAMMAR_PATH3 = path.join(GRAMMAR_Dir, 'UCPreprocessorParser.g4');
const FILES_TO_WATCH = [GRAMMAR_PATH, GRAMMAR_PATH2, GRAMMAR_PATH3];
gulp.task(TASK_NAME, (done) => {
var exec = require('child_process').exec;
/* `cd node_modules/antlr4ts-cli && antlr4ts -visitor ${GRAMMAR_PATH} -o server/src/antlr` */
exec('npm run compile:grammar', (err, stdout, stderr) => {
console.log(stdout);
console.error(stderr);
done();
});
exec('npm run compile:preprocessor', (err, stdout, stderr) => {
console.log(stdout);
console.error(stderr);
done();
});
});
gulp.watch(FILES_TO_WATCH, (cb) => {
return gulp.task(TASK_NAME)(cb);
});
return TASK_NAME;
})();
gulp.task('default', gulp.series([SYNTAX_TASK, GRAMMAR_TASK]));