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import path from 'path'
import { warn } from '../build/output/log'
import { detectTypo } from './detect-typo'
import { realpathSync } from './realpath'
import { printAndExit } from '../server/lib/utils'
export function getProjectDir(dir?: string, exitOnEnoent = true) {
const resolvedDir = path.resolve(dir || '.')
try {
const realDir = realpathSync(resolvedDir)
if (
resolvedDir !== realDir &&
resolvedDir.toLowerCase() === realDir.toLowerCase()
) {
warn(
`Invalid casing detected for project dir, received ${resolvedDir} actual path ${realDir}, see more info here https://nextjs.org/docs/messages/invalid-project-dir-casing`
)
}
return realDir
} catch (err: any) {
if (err.code === 'ENOENT' && exitOnEnoent) {
if (typeof dir === 'string') {
const detectedTypo = detectTypo(dir, [
'build',
'dev',
'info',
'lint',
'start',
'telemetry',
'experimental-test',
])
if (detectedTypo) {
return printAndExit(
`"next ${dir}" does not exist. Did you mean "next ${detectedTypo}"?`
)
}
}
return printAndExit(
`Invalid project directory provided, no such directory: ${resolvedDir}`
)
}
throw err
}
}
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