Commit | Line | Data |
---|---|---|
130783a7 | 1 | import fs from 'node:fs'; |
8114d10e JB |
2 | |
3 | import chalk from 'chalk'; | |
4 | ||
60a74391 | 5 | import { Utils, logger } from './internal'; |
268a74bb | 6 | import type { EmptyObject, FileType, HandleErrorParams, JsonType } from '../types'; |
23132a44 | 7 | |
268a74bb | 8 | export class FileUtils { |
d5bd1c00 JB |
9 | private constructor() { |
10 | // This is intentional | |
11 | } | |
12 | ||
9d7484a4 | 13 | public static watchJsonFile<T extends JsonType>( |
a95873d8 | 14 | file: string, |
7164966d JB |
15 | fileType: FileType, |
16 | logPrefix: string, | |
9d7484a4 | 17 | refreshedVariable?: T, |
a95873d8 | 18 | listener: fs.WatchListener<string> = (event, filename) => { |
5a2a53cf | 19 | if (Utils.isNotEmptyString(filename) && event === 'change') { |
a95873d8 | 20 | try { |
cca3d474 | 21 | logger.debug(`${logPrefix} ${fileType} file ${file} have changed, reload`); |
9d7484a4 | 22 | refreshedVariable && (refreshedVariable = JSON.parse(fs.readFileSync(file, 'utf8')) as T); |
a95873d8 | 23 | } catch (error) { |
7164966d | 24 | FileUtils.handleFileException(file, fileType, error as NodeJS.ErrnoException, logPrefix, { |
a95873d8 JB |
25 | throwError: false, |
26 | }); | |
27 | } | |
28 | } | |
29 | } | |
1895299d | 30 | ): fs.FSWatcher | undefined { |
5a2a53cf | 31 | if (Utils.isNotEmptyString(file)) { |
a95873d8 | 32 | try { |
9d7484a4 | 33 | return fs.watch(file, listener); |
a95873d8 | 34 | } catch (error) { |
7164966d | 35 | FileUtils.handleFileException(file, fileType, error as NodeJS.ErrnoException, logPrefix, { |
a95873d8 JB |
36 | throwError: false, |
37 | }); | |
38 | } | |
39 | } else { | |
40 | logger.info(`${logPrefix} No ${fileType} file to watch given. Not monitoring its changes`); | |
41 | } | |
42 | } | |
43 | ||
9d7484a4 | 44 | public static handleFileException( |
a95873d8 | 45 | file: string, |
7164966d | 46 | fileType: FileType, |
e7aeea18 | 47 | error: NodeJS.ErrnoException, |
7164966d | 48 | logPrefix: string, |
e7aeea18 JB |
49 | params: HandleErrorParams<EmptyObject> = { throwError: true, consoleOut: false } |
50 | ): void { | |
5a2a53cf | 51 | const prefix = Utils.isNotEmptyString(logPrefix) ? `${logPrefix} ` : ''; |
6d8b0b0e JB |
52 | let logMsg: string; |
53 | switch (error.code) { | |
54 | case 'ENOENT': | |
55 | logMsg = `${fileType} file ${file} not found:`; | |
56 | break; | |
57 | case 'EEXIST': | |
58 | logMsg = `${fileType} file ${file} already exists:`; | |
59 | break; | |
60 | case 'EACCES': | |
61 | logMsg = `${fileType} file ${file} access denied:`; | |
62 | break; | |
63 | default: | |
64 | logMsg = `${fileType} file ${file} error:`; | |
65 | } | |
66 | if (params?.consoleOut) { | |
67 | logMsg = `${logMsg} `; | |
68 | console.warn(`${chalk.green(prefix)}${chalk.yellow(logMsg)}`, error); | |
23132a44 | 69 | } else { |
6d8b0b0e JB |
70 | logger.warn(`${prefix}${logMsg}`, error); |
71 | } | |
72 | if (params?.throwError) { | |
73 | throw error; | |
23132a44 JB |
74 | } |
75 | } | |
76 | } |