85 lines
2.3 KiB
Ruby
85 lines
2.3 KiB
Ruby
require "pathname"
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module GitHubChangelogGenerator
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ParserError = Class.new(StandardError)
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class ParserFile
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FILENAME = ".github_changelog_generator"
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attr_reader :file
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# @param options [Hash]
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# @param file [nil,IO]
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def initialize(options, file = read_default_file)
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@options = options
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@file = file
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end
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def read_default_file
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path = Pathname(File.expand_path(FILENAME))
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File.open(path) if path.exist?
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end
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# Set @options using configuration file lines.
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def parse!
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return unless file
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file.each_line { |line| parse_line!(line) }
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file.close
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end
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private
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def parse_line!(line)
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option_name, value = extract_pair(line)
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@options[option_key_for(option_name)] = convert_value(value, option_name)
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rescue
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raise ParserError, "Config file #{file} is incorrect in line \"#{line.gsub(/[\n\r]+/, '')}\""
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end
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# Returns a the option name as a symbol and its string value sans newlines.
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#
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# @param line [String] unparsed line from config file
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# @return [Array<Symbol, String>]
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def extract_pair(line)
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key, value = line.split("=", 2)
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[key.sub("-", "_").to_sym, value.gsub(/[\n\r]+/, "")]
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end
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KNOWN_ARRAY_KEYS = [:exclude_labels, :include_labels, :bug_labels,
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:enhancement_labels, :between_tags, :exclude_tags]
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KNOWN_INTEGER_KEYS = [:max_issues]
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def convert_value(value, option_name)
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if KNOWN_ARRAY_KEYS.include?(option_name)
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value.split(",")
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elsif KNOWN_INTEGER_KEYS.include?(option_name)
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value.to_i
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elsif value =~ /^(true|t|yes|y|1)$/i
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true
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elsif value =~ /^(false|f|no|n|0)$/i
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false
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else
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value
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end
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end
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IRREGULAR_OPTIONS = {
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bugs_label: :bug_prefix,
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enhancement_label: :enhancement_prefix,
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issues_label: :issue_prefix,
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header_label: :header,
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front_matter: :frontmatter,
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pr_label: :merge_prefix,
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issues_wo_labels: :add_issues_wo_labels,
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pr_wo_labels: :add_pr_wo_labels,
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pull_requests: :pulls,
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filter_by_milestone: :filter_issues_by_milestone,
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github_api: :github_endpoint
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}
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def option_key_for(option_name)
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IRREGULAR_OPTIONS.fetch(option_name) { option_name }
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end
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end
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end
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