Function normalizeCandidate

cli/src/utils/detect-shell.ts:88–116

(value?: string | null)

}

function normalizeCandidate(value?: string | null): ShellName | null {
  if (!value) {
    return null
  }

  const trimmed = value.trim()
  if (!trimmed) {
    return null
  }

  const lower = trimmed.toLowerCase()
  const parts = lower.split(/[/\\]/)
  const last = parts.pop() ?? lower
  const base = last.endsWith('.exe') ? last.slice(0, -4) : last

  if (SHELL_ALIASES[base]) {
    return SHELL_ALIASES[base]
  }

  if (SHELL_ALIASES[last]) {
    return SHELL_ALIASES[last]
  }

  if (base.endsWith('sh')) {
    return base
  }

  return null
}