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fa23e800e5
- prefer `null`, `!= null` and `== null` instead of `undefined` - disallow `as`, add comments for the existing usages of `as` - make `tsconfig.json` a bit stricter - minor fixes to other files that were missed # Important Notes N/A
48 lines
1.3 KiB
TypeScript
48 lines
1.3 KiB
TypeScript
/** @file Shared utility functions. */
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import * as fs from 'node:fs'
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import * as path from 'node:path'
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import process from 'node:process'
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/**
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* Get the environment variable value.
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*
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* @param name - The name of the environment variable.
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* @returns The value of the environment variable.
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* @throws {Error} If the environment variable is not set.
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*/
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export function requireEnv(name: string) {
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return (
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process.env[name] ??
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(() => {
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throw Error(`Missing ${name} environment variable.`)
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})()
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)
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}
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/**
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* Read the path from environment variable and resolve it.
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*
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* @param name - The name of the environment variable.
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* @returns The resolved path.
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* @throws {Error} If the environment variable is not set.
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*/
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export function requireEnvResolvedPath(name: string) {
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return path.resolve(requireEnv(name))
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}
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/**
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* Read the path from environment variable and resolve it. Verify that it exists.
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*
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* @param name - The name of the environment variable.
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* @returns The resolved path.
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* @throws {Error} If the environment variable is not set or path does not exist.
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*/
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export function requireEnvPathExist(name: string) {
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const value = requireEnv(name)
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if (fs.existsSync(value)) {
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return value
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} else {
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throw Error(`File with path ${value} read from environment variable ${name} is missing.`)
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}
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}
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