kylin-code/build/lib/stats.ts

73 lines
2.3 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as es from 'event-stream';
import * as fancyLog from 'fancy-log';
import * as ansiColors from 'ansi-colors';
import * as File from 'vinyl';
class Entry {
constructor(readonly name: string, public totalCount: number, public totalSize: number) { }
toString(pretty?: boolean): string {
if (!pretty) {
if (this.totalCount === 1) {
return `${this.name}: ${this.totalSize} bytes`;
} else {
return `${this.name}: ${this.totalCount} files with ${this.totalSize} bytes`;
}
} else {
if (this.totalCount === 1) {
return `Stats for '${ansiColors.grey(this.name)}': ${Math.round(this.totalSize / 1204)}KB`;
} else {
const count = this.totalCount < 100
? ansiColors.green(this.totalCount.toString())
: ansiColors.red(this.totalCount.toString());
return `Stats for '${ansiColors.grey(this.name)}': ${count} files, ${Math.round(this.totalSize / 1204)}KB`;
}
}
}
}
const _entries = new Map<string, Entry>();
export function createStatsStream(group: string, log?: boolean): es.ThroughStream {
const entry = new Entry(group, 0, 0);
_entries.set(entry.name, entry);
return es.through(function (data) {
const file = data as File;
if (typeof file.path === 'string') {
entry.totalCount += 1;
if (Buffer.isBuffer(file.contents)) {
entry.totalSize += file.contents.length;
} else if (file.stat && typeof file.stat.size === 'number') {
entry.totalSize += file.stat.size;
} else {
// funky file...
}
}
this.emit('data', data);
}, function () {
if (log) {
if (entry.totalCount === 1) {
fancyLog(`Stats for '${ansiColors.grey(entry.name)}': ${Math.round(entry.totalSize / 1204)}KB`);
} else {
const count = entry.totalCount < 100
? ansiColors.green(entry.totalCount.toString())
: ansiColors.red(entry.totalCount.toString());
fancyLog(`Stats for '${ansiColors.grey(entry.name)}': ${count} files, ${Math.round(entry.totalSize / 1204)}KB`);
}
}
this.emit('end');
});
}