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44 lines
1.6 KiB
44 lines
1.6 KiB
/** |
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* Utility for resolving a module relative to another module |
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* @author Teddy Katz |
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*/ |
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"use strict"; |
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const Module = require("module"); |
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/* |
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* `Module.createRequire` is added in v12.2.0. It supports URL as well. |
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* We only support the case where the argument is a filepath, not a URL. |
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*/ |
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// eslint-disable-next-line node/no-unsupported-features/node-builtins, node/no-deprecated-api |
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const createRequire = Module.createRequire || Module.createRequireFromPath; |
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module.exports = { |
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/** |
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* Resolves a Node module relative to another module |
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* @param {string} moduleName The name of a Node module, or a path to a Node module. |
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* @param {string} relativeToPath An absolute path indicating the module that `moduleName` should be resolved relative to. This must be |
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* a file rather than a directory, but the file need not actually exist. |
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* @returns {string} The absolute path that would result from calling `require.resolve(moduleName)` in a file located at `relativeToPath` |
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*/ |
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resolve(moduleName, relativeToPath) { |
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try { |
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return createRequire(relativeToPath).resolve(moduleName); |
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} catch (error) { |
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// This `if` block is for older Node.js than 12.0.0. We can remove this block in the future. |
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if ( |
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typeof error === "object" && |
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error !== null && |
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error.code === "MODULE_NOT_FOUND" && |
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!error.requireStack && |
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error.message.includes(moduleName) |
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) { |
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error.message += `\nRequire stack:\n- ${relativeToPath}`; |
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} |
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throw error; |
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} |
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} |
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};
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