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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| import { homedir } from 'node:os' | ||
| import { resolve } from 'node:path' | ||
| import { createReadStream } from 'node:fs' | ||
| import { createInterface } from 'node:readline' | ||
| import { appendFile, writeFile } from 'node:fs/promises' | ||
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| const nrmrcPath = resolve(homedir(), '.nrmrc') | ||
|
|
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| /** | ||
| * Read config line by line, stop when invalid. | ||
| * Warn that this function may throws, the caller SHOULD handle any error | ||
| */ | ||
| export async function readNrmrc() { | ||
| const rl = createInterface(createReadStream(nrmrcPath)) | ||
| /** | ||
| * false: [name] | ||
| * true : registry=https://registry.url | ||
| */ | ||
| let state = false | ||
| let name = '' | ||
| let url = '' | ||
| /** @type {Array<[string, string]>} */ | ||
| const entries = [] | ||
|
|
||
| for await (let line of rl) { | ||
| line = line.trim() | ||
| if (line.length === 0) continue | ||
| if (state) { | ||
| const prefix = 'registry=' | ||
| if (!line.startsWith(prefix)) continue | ||
| url = line.slice(prefix.length).trim() // remove prefix | ||
| entries.push([name, url]) | ||
| } else { | ||
| if (!(line.startsWith('[') && line.endsWith(']'))) break | ||
| name = line.slice(1, -1) | ||
| if (name.length === 0) break | ||
| name = decodeName(name) | ||
| } | ||
| state = !state | ||
| } | ||
| return new Map(entries) | ||
| } | ||
|
|
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| // name is `name`, not `[name]` | ||
| // the '[' and ']' should be removed first | ||
|
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| /** | ||
| * @param {string} name | ||
| */ | ||
| function encodeName(name) { | ||
| const s = JSON.stringify(name).slice(1, -1) | ||
| if (name === s) return name | ||
| return `"${s}"` | ||
| } | ||
|
|
||
| /** | ||
| * @param {string} name | ||
| */ | ||
| function decodeName(name) { | ||
| if (name.startsWith('"') && name.endsWith('"')) { | ||
| return JSON.parse(name) | ||
| } else { | ||
| return name | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * @param {string} url | ||
| */ | ||
| function resolveUrl(url) { | ||
| if (!url.endsWith('/')) url = url + '/' | ||
| if (url.startsWith('/') || url.startsWith('\\')) return resolve(url) | ||
| return url | ||
| } | ||
|
|
||
| /** | ||
| * @param {string} name | ||
| * @param {string} url | ||
| */ | ||
| export async function appendNrmrc(name, url) { | ||
| return await appendFile( | ||
| nrmrcPath, | ||
| `[${encodeName(name)}]\nregistry=${resolveUrl(url)}\n\n` | ||
| ) | ||
| } | ||
|
|
||
| /** | ||
| * @param {Map<string, string>} registries | ||
| */ | ||
| export async function writeNrmrc(registries) { | ||
| return await writeFile( | ||
| nrmrcPath, | ||
| Array.from(registries.entries()) | ||
| .map( | ||
| ([name, url]) => | ||
| `[${encodeName(name)}]\nregistry=${resolveUrl(url)}` | ||
| ) | ||
| .join('\n\n') | ||
| ) | ||
| } |
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