Function printSubcommands

packages/cli/src/internal/commandDescriptor.ts:399–419

(
        subcommands: ReadonlyArray<[Span.Span, Span.Span]>
      )

        }
      }
      const printSubcommands = (
        subcommands: ReadonlyArray<[Span.Span, Span.Span]>
      ): HelpDoc.HelpDoc => {
        const maxUsageLength = Arr.reduceRight(
          subcommands,
          0,
          (max, [usage]) => Math.max(InternalSpan.size(usage), max)
        )
        const documents = Arr.map(subcommands, ([usage, desc]) =>
          InternalHelpDoc.p(
            InternalSpan.spans([
              usage,
              InternalSpan.text(" ".repeat(maxUsageLength - InternalSpan.size(usage) + 2)),
              desc
            ])
          ))
        if (Arr.isNonEmptyReadonlyArray(documents)) {
          return InternalHelpDoc.enumeration(documents)
        }
        throw new Error("[BUG]: Subcommands.usage - received empty list of subcommands to print")
      }
      return InternalHelpDoc.sequence(
        getHelpInternal(self.parent, config),
        InternalHelpDoc.sequence(