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https://github.com/KevinMidboe/linguist.git
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58 lines
1.5 KiB
Ruby
Executable File
58 lines
1.5 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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require "json"
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require "linguist"
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require "set"
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require "yaml"
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def find_includes(json)
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case json
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when Hash
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result = []
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if inc = json["include"]
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result << inc.split("#", 2).first unless inc.start_with?("#", "$")
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end
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result + json.values.flat_map { |v| find_includes(v) }
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when Array
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json.flat_map { |v| find_includes(v) }
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else
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[]
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end
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end
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def transitive_includes(scope, includes)
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scopes = Set.new
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queue = includes[scope] || []
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while s = queue.shift
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next if scopes.include?(s)
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scopes << s
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queue += includes[s] || []
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end
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scopes
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end
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includes = {}
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Dir["grammars/*.json"].each do |path|
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scope = File.basename(path).sub(/\.json/, '')
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json = JSON.load(File.read(path))
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incs = find_includes(json)
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next if incs.empty?
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includes[scope] ||= []
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includes[scope] += incs
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end
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yaml = YAML.load(File.read("grammars.yml"))
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language_scopes = Linguist::Language.all.map(&:tm_scope).to_set
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# The set of used scopes is the scopes for each language, plus all the scopes
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# they include, transitively.
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used_scopes = language_scopes + language_scopes.flat_map { |s| transitive_includes(s, includes).to_a }.to_set
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unused = yaml.reject { |repo, scopes| scopes.any? { |scope| used_scopes.include?(scope) } }
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puts "Unused grammar repos"
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puts unused.map { |repo, scopes| sprintf("%-100s %s", repo, scopes.join(", ")) }.sort.join("\n")
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yaml.delete_if { |k| unused.key?(k) }
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File.write("grammars.yml", YAML.dump(yaml))
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