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52
node_modules/empathic/package.mjs
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52
node_modules/empathic/package.mjs
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import { env } from "node:process";
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import { dirname, join } from "node:path";
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import { existsSync, mkdirSync } from "node:fs";
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import { writable } from "empathic/access";
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import * as find from "empathic/find";
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/**
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* Find the closest "package.json" file while walking parent directories.
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* @returns The absolute path to a "package.json", if found.
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*/
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export function up(options) {
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return find.up("package.json", options);
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}
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/**
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* Construct a path to a `node_modules/.cache/<name>` directory.
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*
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* This may return `undefined` if:
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* 1. no "package.json" could be found
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* 2. the nearest "node_modules" directory is not writable
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* 3. the "node_modules" parent directory is not writable
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*
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* > [NOTE]
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* > You may define a `CACHE_DIR` environment variable, which will be
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* > used (as defined) instead of traversing the filesystem for the
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* > closest "package.json" and inferring a "node_modules" location.
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*
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* @see find-cache-dir for more information.
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*
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* @param name The name of your module/cache.
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* @returns The absolute path of the cache directory, if found.
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*/
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export function cache(name, options) {
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options = options || {};
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let dir = env.CACHE_DIR;
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if (!dir || /^(1|0|true|false)$/.test(dir)) {
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let pkg = up(options);
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if (dir = pkg && dirname(pkg)) {
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let mods = join(dir, "node_modules");
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let exists = existsSync(mods);
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// exit cuz exists but not writable
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// or cuz missing but parent not writable
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if (!writable(exists ? mods : dir)) return;
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dir = join(mods, ".cache");
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}
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}
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if (dir) {
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dir = join(dir, name);
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if (options.create && !existsSync(dir)) {
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mkdirSync(dir, { recursive: true });
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}
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return dir;
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}
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}
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