brew/Library/Homebrew/rubocops/cask/stanza_grouping.rb
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

100 lines
3.0 KiB
Ruby

# typed: true # rubocop:todo Sorbet/StrictSigil
# frozen_string_literal: true
require "forwardable"
module RuboCop
module Cop
module Cask
# This cop checks that a cask's stanzas are grouped correctly, including nested within `on_*` blocks.
# @see https://docs.brew.sh/Cask-Cookbook#stanza-order
class StanzaGrouping < Base
extend Forwardable
extend AutoCorrector
include CaskHelp
include RangeHelp
MISSING_LINE_MSG = "stanza groups should be separated by a single empty line"
EXTRA_LINE_MSG = "stanzas within the same group should have no lines between them"
def on_cask(cask_block)
@cask_block = cask_block
@line_ops = {}
cask_stanzas = cask_block.toplevel_stanzas
add_offenses(cask_stanzas)
return if (on_blocks = on_system_methods(cask_stanzas)).none?
on_blocks.map(&:method_node).select(&:block_type?).each do |on_block|
stanzas = inner_stanzas(on_block, processed_source.comments)
add_offenses(stanzas)
end
end
private
attr_reader :cask_block, :line_ops
def_delegators :cask_block, :cask_node, :toplevel_stanzas
def add_offenses(stanzas)
stanzas.each_cons(2) do |stanza, next_stanza|
next unless next_stanza
if missing_line_after?(stanza, next_stanza)
add_offense_missing_line(stanza)
elsif extra_line_after?(stanza, next_stanza)
add_offense_extra_line(stanza)
end
end
end
def missing_line_after?(stanza, next_stanza)
!(stanza.same_group?(next_stanza) ||
empty_line_after?(stanza))
end
def extra_line_after?(stanza, next_stanza)
stanza.same_group?(next_stanza) &&
empty_line_after?(stanza)
end
def empty_line_after?(stanza)
source_line_after(stanza).empty?
end
def source_line_after(stanza)
processed_source[index_of_line_after(stanza)]
end
def index_of_line_after(stanza)
stanza.source_range.last_line
end
def add_offense_missing_line(stanza)
line_index = index_of_line_after(stanza)
line_ops[line_index] = :insert
add_offense(line_index, message: MISSING_LINE_MSG) do |corrector|
corrector.insert_before(@range, "\n")
end
end
def add_offense_extra_line(stanza)
line_index = index_of_line_after(stanza)
line_ops[line_index] = :remove
add_offense(line_index, message: EXTRA_LINE_MSG) do |corrector|
corrector.remove(@range)
end
end
def add_offense(line_index, message:)
line_length = [processed_source[line_index].size, 1].max
@range = source_range(processed_source.buffer, line_index + 1, 0,
line_length)
super(@range, message:)
end
end
end
end
end