-
Notifications
You must be signed in to change notification settings - Fork 242
/
StrykerTempFolder.ts
78 lines (70 loc) · 2.27 KB
/
StrykerTempFolder.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
import * as fs from 'mz/fs';
import * as path from 'path';
import * as mkdirp from 'mkdirp';
import * as log4js from 'log4js';
import { deleteDir} from './fileUtils';
const log = log4js.getLogger('StrykerTempFolder');
let baseTempFolder = path.join(process.cwd(), '.stryker-tmp');
let tempFolder = path.join(baseTempFolder, random().toString());
mkdirp.sync(baseTempFolder);
mkdirp.sync(tempFolder);
/**
* Creates a new random folder with the specified prefix.
* @param prefix The prefix.
* @returns The path to the folder.
*/
function createRandomFolder(prefix: string): string {
let dir = tempFolder + path.sep + prefix + random();
mkdirp.sync(dir);
return dir;
}
/**
* Creates a random integer number.
* @returns A random integer.
*/
function random(): number {
return Math.ceil(Math.random() * 10000000);
}
/**
* Writes data to a specified file.
* @param filename The path to the file.
* @param data The content of the file.
* @returns A promise to eventually save the file.
*/
function writeFile(filename: string, data: string): Promise<void> {
return fs.writeFile(filename, data, { encoding: 'utf8' });
}
/**
* Copies a file.
* @param fromFilename The path to the existing file.
* @param toFilename The path to copy the file to.
* @param instrumenter An optional additional instrumenter to stream the file through
* @returns A promise to eventually copy the file.
*/
function copyFile(fromFilename: string, toFilename: string, instrumenter: NodeJS.ReadWriteStream | null): Promise<void> {
return new Promise<void>((resolve, reject) => {
let readStream: NodeJS.ReadableStream = fs.createReadStream(fromFilename, { encoding: 'utf8' });
let writeStream = fs.createWriteStream(toFilename, { encoding: 'utf8' });
readStream.on('error', reject);
writeStream.on('error', reject);
if (instrumenter) {
readStream = readStream.pipe(instrumenter);
}
readStream.pipe(writeStream);
readStream.on('end', () => resolve());
});
}
/**
* Deletes the Stryker-temp folder
*/
function clean() {
log.debug(`Cleaning stryker temp folder ${baseTempFolder}`);
return deleteDir(baseTempFolder)
.catch(() => log.info(`Failed to clean stryker temp folder ${baseTempFolder}`));
}
export default {
createRandomFolder,
writeFile,
copyFile,
clean
};