Commit | Line | Data |
---|---|---|
130783a7 | 1 | import fs from 'node:fs'; |
8114d10e JB |
2 | |
3 | import chalk from 'chalk'; | |
4 | ||
268a74bb JB |
5 | import { logger } from './Logger'; |
6 | import { Utils } from './Utils'; | |
7 | import type { EmptyObject, FileType, HandleErrorParams, JsonType } from '../types'; | |
23132a44 | 8 | |
268a74bb | 9 | export class FileUtils { |
d5bd1c00 JB |
10 | private constructor() { |
11 | // This is intentional | |
12 | } | |
13 | ||
9d7484a4 | 14 | public static watchJsonFile<T extends JsonType>( |
a95873d8 | 15 | file: string, |
7164966d JB |
16 | fileType: FileType, |
17 | logPrefix: string, | |
9d7484a4 | 18 | refreshedVariable?: T, |
a95873d8 | 19 | listener: fs.WatchListener<string> = (event, filename) => { |
5a2a53cf | 20 | if (Utils.isNotEmptyString(filename) && event === 'change') { |
a95873d8 | 21 | try { |
cca3d474 | 22 | logger.debug(`${logPrefix} ${fileType} file ${file} have changed, reload`); |
9d7484a4 | 23 | refreshedVariable && (refreshedVariable = JSON.parse(fs.readFileSync(file, 'utf8')) as T); |
a95873d8 | 24 | } catch (error) { |
7164966d | 25 | FileUtils.handleFileException(file, fileType, error as NodeJS.ErrnoException, logPrefix, { |
a95873d8 JB |
26 | throwError: false, |
27 | }); | |
28 | } | |
29 | } | |
30 | } | |
1895299d | 31 | ): fs.FSWatcher | undefined { |
5a2a53cf | 32 | if (Utils.isNotEmptyString(file)) { |
a95873d8 | 33 | try { |
9d7484a4 | 34 | return fs.watch(file, listener); |
a95873d8 | 35 | } catch (error) { |
7164966d | 36 | FileUtils.handleFileException(file, fileType, error as NodeJS.ErrnoException, logPrefix, { |
a95873d8 JB |
37 | throwError: false, |
38 | }); | |
39 | } | |
40 | } else { | |
41 | logger.info(`${logPrefix} No ${fileType} file to watch given. Not monitoring its changes`); | |
42 | } | |
43 | } | |
44 | ||
9d7484a4 | 45 | public static handleFileException( |
a95873d8 | 46 | file: string, |
7164966d | 47 | fileType: FileType, |
e7aeea18 | 48 | error: NodeJS.ErrnoException, |
7164966d | 49 | logPrefix: string, |
e7aeea18 JB |
50 | params: HandleErrorParams<EmptyObject> = { throwError: true, consoleOut: false } |
51 | ): void { | |
5a2a53cf | 52 | const prefix = Utils.isNotEmptyString(logPrefix) ? `${logPrefix} ` : ''; |
6d8b0b0e JB |
53 | let logMsg: string; |
54 | switch (error.code) { | |
55 | case 'ENOENT': | |
56 | logMsg = `${fileType} file ${file} not found:`; | |
57 | break; | |
58 | case 'EEXIST': | |
59 | logMsg = `${fileType} file ${file} already exists:`; | |
60 | break; | |
61 | case 'EACCES': | |
62 | logMsg = `${fileType} file ${file} access denied:`; | |
63 | break; | |
64 | default: | |
65 | logMsg = `${fileType} file ${file} error:`; | |
66 | } | |
67 | if (params?.consoleOut) { | |
68 | logMsg = `${logMsg} `; | |
69 | console.warn(`${chalk.green(prefix)}${chalk.yellow(logMsg)}`, error); | |
23132a44 | 70 | } else { |
6d8b0b0e JB |
71 | logger.warn(`${prefix}${logMsg}`, error); |
72 | } | |
73 | if (params?.throwError) { | |
74 | throw error; | |
23132a44 JB |
75 | } |
76 | } | |
77 | } |