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Do not write .d.ts files to disk, as they are not needed there

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This commit is contained in:
Alex Dima
2017-12-15 15:58:58 +01:00
parent 52c252b8c9
commit 17bda4b25c
2 changed files with 23 additions and 42 deletions
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51
build/lib/compilation.js
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@@ -58,9 +58,13 @@ function compileTask(out, build) {
return function () {
var compile = createCompile(build, true);
var src = es.merge(gulp.src('src/**', { base: 'src' }), gulp.src('node_modules/typescript/lib/lib.d.ts'));
// Do not write .d.ts files to disk, as they are not needed there.
var dtsFilter = util.filter(function (data) { return !/\.d\.ts$/.test(data.path); });
return src
.pipe(compile())
.pipe(dtsFilter)
.pipe(gulp.dest(out))
.pipe(dtsFilter.restore)
.pipe(monacodtsTask(out, false));
};
}
@@ -70,54 +74,19 @@ function watchTask(out, build) {
var compile = createCompile(build);
var src = es.merge(gulp.src('src/**', { base: 'src' }), gulp.src('node_modules/typescript/lib/lib.d.ts'));
var watchSrc = watch('src/**', { base: 'src' });
// Do not write .d.ts files to disk, as they are not needed there.
var dtsFilter = util.filter(function (data) { return !/\.d\.ts$/.test(data.path); });
return watchSrc
.pipe(util.incremental(compile, src, true))
.pipe(dtsFilter)
.pipe(gulp.dest(out))
.pipe(dtsFilter.restore)
.pipe(monacodtsTask(out, true));
};
}
exports.watchTask = watchTask;
function reloadTypeScriptNodeModule() {
var util = require('gulp-util');
function log(message) {
var rest = [];
for (var _i = 1; _i < arguments.length; _i++) {
rest[_i - 1] = arguments[_i];
}
util.log.apply(util, [util.colors.cyan('[memory watch dog]'), message].concat(rest));
}
function heapUsed() {
return (process.memoryUsage().heapUsed / 1024 / 1024).toFixed(2) + ' MB';
}
return es.through(function (data) {
this.emit('data', data);
}, function () {
log('memory usage after compilation finished: ' + heapUsed());
// It appears we are running into some variant of
// https://bugs.chromium.org/p/v8/issues/detail?id=2073
//
// Even though all references are dropped, some
// optimized methods in the TS compiler end up holding references
// to the entire TypeScript language host (>600MB)
//
// The idea is to force v8 to drop references to these
// optimized methods, by "reloading" the typescript node module
log('Reloading typescript node module...');
var resolvedName = require.resolve('typescript');
var originalModule = require.cache[resolvedName];
delete require.cache[resolvedName];
var newExports = require('typescript');
require.cache[resolvedName] = originalModule;
for (var prop in newExports) {
if (newExports.hasOwnProperty(prop)) {
originalModule.exports[prop] = newExports[prop];
}
}
log('typescript node module reloaded.');
this.emit('end');
});
}
function monacodtsTask(out, isWatch) {
var basePath = path.resolve(process.cwd(), out);
var neededFiles = {};
monacodts.getFilesToWatch(out).forEach(function (filePath) {
filePath = path.normalize(filePath);
@@ -160,7 +129,7 @@ function monacodtsTask(out, isWatch) {
}));
}
resultStream = es.through(function (data) {
var filePath = path.normalize(data.path);
var filePath = path.normalize(path.resolve(basePath, data.relative));
if (neededFiles[filePath]) {
setInputFile(filePath, data.contents.toString());
}