80 lines
2 KiB
Ruby
80 lines
2 KiB
Ruby
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# Gitaly note: JV: no RPC's here.
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module Gitlab
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module Git
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class GitmodulesParser
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def initialize(content)
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@content = content
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end
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# Parses the contents of a .gitmodules file and returns a hash of
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# submodule information, indexed by path.
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def parse
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reindex_by_path(get_submodules_by_name)
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end
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private
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class State
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def initialize
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@result = {}
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@current_submodule = nil
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end
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def start_section(section)
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# In some .gitmodules files (e.g. nodegit's), a header
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# with the same name appears multiple times; we want to
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# accumulate the configs across these
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@current_submodule = @result[section] || { 'name' => section }
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@result[section] = @current_submodule
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end
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def set_attribute(attr, value)
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@current_submodule[attr] = value
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end
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def section_started?
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!@current_submodule.nil?
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end
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def submodules_by_name
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@result
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end
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end
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def get_submodules_by_name
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iterator = State.new
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@content.split("\n").each_with_object(iterator) do |text, iterator|
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next if text =~ /^\s*#/
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if text =~ /\A\[submodule "(?<name>[^"]+)"\]\z/
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iterator.start_section($~[:name])
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else
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next unless iterator.section_started?
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next unless text =~ /\A\s*(?<key>\w+)\s*=\s*(?<value>.*)\z/
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value = $~[:value].chomp
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iterator.set_attribute($~[:key], value)
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end
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end
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iterator.submodules_by_name
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end
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def reindex_by_path(submodules_by_name)
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# Convert from an indexed by name to an array indexed by path
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# If a submodule doesn't have a path, it is considered bogus
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# and is ignored
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submodules_by_name.each_with_object({}) do |(name, data), results|
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path = data.delete 'path'
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next unless path
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results[path] = data
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end
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end
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end
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end
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end
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