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Fix internal formula json v3 frozen hash parsing bug #17201

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merged 1 commit into from
May 2, 2024
Merged

Fix internal formula json v3 frozen hash parsing bug #17201

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3 changes: 2 additions & 1 deletion Library/Homebrew/extend/cachable.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -7,9 +7,10 @@ def cache
@cache ||= T.let({}, T.nilable(T::Hash[T.untyped, T.untyped]))
end

# NOTE: We overwrite here instead of using `Hash#clear` to handle frozen hashes.
sig { void }
def clear_cache
cache.clear
overwrite_cache!({})
Comment on lines +10 to +13
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The internal JSON v3 format gets parsed into a frozen hash with JSON.parse(string, frozen: true) and then gets moved into the cache with Cachable#overwrite_cache! so the cache is frozen in that case.

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I'm not sure if there are any real downsides to creating a new hash here instead of using Hash#clear.

Edit: I guess we could also do this if we don't want to create new hashes here.

def clear_cache
  cache.frozen? ? overwrite_cache!({}) : cache.clear
end

end

private
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2 changes: 1 addition & 1 deletion Library/Homebrew/formulary.rb
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Expand Up @@ -226,7 +226,7 @@ def self.load_formula_from_api(name, flags:)
end

if info&.key?("uses_from_macos")
bounds = info["uses_from_macos"] || {}
bounds = info["uses_from_macos"].dup || {}
bounds.deep_transform_keys!(&:to_sym)
bounds.deep_transform_values!(&:to_sym)

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2 changes: 1 addition & 1 deletion Library/Homebrew/test/api/internal_tap_json/formula_spec.rb
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Expand Up @@ -33,7 +33,7 @@

allow(Homebrew::API).to receive(:fetch_json_api_file)
.with("internal/v3/homebrew-core.jws.json")
.and_return([JSON.parse(internal_tap_json), false])
.and_return([JSON.parse(internal_tap_json, freeze: true), false])

# `Tap.tap_migration_oldnames` looks for renames in every
# tap so `CoreCaskTap.tap_migrations` gets called and tries to
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