Issy Long 45978435e7
rubocop: Use Sorbet/StrictSigil as it's better than comments
- Previously I thought that comments were fine to discourage people from
  wasting their time trying to bump things that used `undef` that Sorbet
  didn't support. But RuboCop is better at this since it'll complain if
  the comments are unnecessary.

- Suggested in https://github.com/Homebrew/brew/pull/18018#issuecomment-2283369501.

- I've gone for a mixture of `rubocop:disable` for the files that can't
  be `typed: strict` (use of undef, required before everything else, etc)
  and `rubocop:todo` for everything else that should be tried to make
  strictly typed. There's no functional difference between the two as
  `rubocop:todo` is `rubocop:disable` with a different name.

- And I entirely disabled the cop for the docs/ directory since
  `typed: strict` isn't going to gain us anything for some Markdown
  linting config files.

- This means that now it's easier to track what needs to be done rather
  than relying on checklists of files in our big Sorbet issue:

```shell
$ git grep 'typed: true # rubocop:todo Sorbet/StrictSigil' | wc -l
    268
```

- And this is confirmed working for new files:

```shell
$ git status
On branch use-rubocop-for-sorbet-strict-sigils
Untracked files:
  (use "git add <file>..." to include in what will be committed)
        Library/Homebrew/bad.rb
        Library/Homebrew/good.rb

nothing added to commit but untracked files present (use "git add" to track)

$ brew style
Offenses:

bad.rb:1:1: C: Sorbet/StrictSigil: Sorbet sigil should be at least strict got true.
^^^^^^^^^^^^^

1340 files inspected, 1 offense detected
```
2024-08-12 15:24:27 +01:00

96 lines
3.0 KiB
Ruby

# typed: true # rubocop:todo Sorbet/StrictSigil
# frozen_string_literal: true
require "cli/parser"
require "commands"
module Homebrew
# Helper module for printing help output.
module Help
def self.help(cmd = nil, empty_argv: false, usage_error: nil, remaining_args: [])
if cmd.nil?
# Handle `brew` (no arguments).
if empty_argv
$stderr.puts HOMEBREW_HELP_MESSAGE
exit 1
end
# Handle `brew (-h|--help|--usage|-?|help)` (no other arguments).
puts HOMEBREW_HELP_MESSAGE
exit 0
end
# Resolve command aliases and find file containing the implementation.
path = Commands.path(cmd)
# Display command-specific (or generic) help in response to `UsageError`.
if usage_error
$stderr.puts path ? command_help(cmd, path, remaining_args:) : HOMEBREW_HELP_MESSAGE
$stderr.puts
onoe usage_error
exit 1
end
# Resume execution in `brew.rb` for unknown commands.
return if path.nil?
# Display help for internal command (or generic help if undocumented).
puts command_help(cmd, path, remaining_args:)
exit 0
end
def self.command_help(cmd, path, remaining_args:)
# Only some types of commands can have a parser.
output = if Commands.valid_internal_cmd?(cmd) ||
Commands.valid_internal_dev_cmd?(cmd) ||
Commands.external_ruby_v2_cmd_path(cmd)
parser_help(path, remaining_args:)
end
output ||= comment_help(path)
output ||= if output.blank?
opoo "No help text in: #{path}" if Homebrew::EnvConfig.developer?
HOMEBREW_HELP_MESSAGE
end
output
end
private_class_method :command_help
def self.parser_help(path, remaining_args:)
# Let OptionParser generate help text for commands which have a parser.
cmd_parser = CLI::Parser.from_cmd_path(path)
return unless cmd_parser
# Try parsing arguments here in order to show formula options in help output.
cmd_parser.parse(remaining_args, ignore_invalid_options: true)
cmd_parser.generate_help_text
end
private_class_method :parser_help
def self.command_help_lines(path)
path.read
.lines
.grep(/^#:/)
.map { |line| line.slice(2..-1).delete_prefix(" ") }
end
private_class_method :command_help_lines
def self.comment_help(path)
# Otherwise read #: lines from the file.
help_lines = command_help_lines(path)
return if help_lines.blank?
Formatter.format_help_text(help_lines.join, width: Formatter::COMMAND_DESC_WIDTH)
.sub("@hide_from_man_page ", "")
.sub(/^\* /, "#{Tty.bold}Usage: brew#{Tty.reset} ")
.gsub(/`(.*?)`/m, "#{Tty.bold}\\1#{Tty.reset}")
.gsub(%r{<([^\s]+?://[^\s]+?)>}) { |url| Formatter.url(url) }
.gsub(/<(.*?)>/m, "#{Tty.underline}\\1#{Tty.reset}")
.gsub(/\*(.*?)\*/m, "#{Tty.underline}\\1#{Tty.reset}")
end
private_class_method :comment_help
end
end