43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
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import fs from 'node:fs';
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import path from 'node:path';
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import process from 'node:process';
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import {fileURLToPath} from 'node:url';
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import globalDirectory from 'global-directory';
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import isPathInside from 'is-path-inside';
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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// Resolve symlinks so version-manager proxies (like nvm-windows) compare correctly.
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const realDirectory = (() => {
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try {
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return fs.realpathSync(__dirname);
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} catch {
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return __dirname;
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}
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})();
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const isInside = parent => {
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try {
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return isPathInside(realDirectory, fs.realpathSync(parent));
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} catch {
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return false;
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}
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};
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// `global-directory` only knows the active Node version's directory, but nvm
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// scopes globals per version, so after `nvm use <other-version>` a global
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// install would wrongly report `false`. Match package paths relative to the
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// nvm installation root, so similarly named project directories stay local.
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const isNvmGlobal = (process.env.NVM_DIR ? /^versions[/\\]node[/\\]v\d+\.\d+\.\d+[/\\]lib[/\\]node_modules[/\\]/i.test(path.relative(process.env.NVM_DIR, realDirectory)) : false)
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|| (process.env.NVM_HOME ? /^v\d+\.\d+\.\d+[/\\]node_modules[/\\]/i.test(path.relative(process.env.NVM_HOME, realDirectory)) : false);
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const isInstalledGlobally = (() => {
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try {
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return isInside(globalDirectory.yarn.packages) || isInside(globalDirectory.npm.packages) || isNvmGlobal;
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} catch {
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return false;
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}
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})();
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export default isInstalledGlobally;
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