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#!/usr/bin/env ruby
# frozen_string_literal: true
# Taken from Jekyll
# https://github.com/jekyll/jekyll/blob/3.5-stable/lib/jekyll/document.rb#L13
YAML_FRONT_MATTER_REGEXP = /\A(---\s*\n.*?\n?)^((---|\.\.\.)\s*$\n?)/m
READ_LIMIT_BYTES = 1024
require 'yaml'
def extract_front_matter(path)
File.open(path, 'r') do |f|
data = if match = YAML_FRONT_MATTER_REGEXP.match(f.read(READ_LIMIT_BYTES))
YAML.safe_load(match[1])
else
{}
end
BlueprintFrontMatter.new(data)
end
end
class BlueprintFrontMatter
STATUSES = %w[proposed accepted ongoing implemented postponed rejected]
attr_reader :errors
def initialize(metadata)
@metadata = metadata
@errors = []
end
def validate
return if @metadata['redirect_to']
validate_status
validate_authors
validate_creation_date
end
private
def validate_status
status = @metadata['status']
add_error('Missing status') unless status
return if STATUSES.include?(status)
add_error("Unsupported status '#{status}': expected one of '#{STATUSES.join(', ')}'")
end
def validate_authors
authors = @metadata['authors']
add_error('Missing authors') unless authors
add_error('Authors must be an array') unless authors.is_a?(Array)
end
def validate_creation_date
return if @metadata['creation-date'] =~ /\d{4}-[01]\d-[0123]\d/
add_error("Invalid creation-date: the date format must be 'yyyy-mm-dd'")
end
def add_error(msg)
@errors << msg
end
end
if $PROGRAM_NAME == __FILE__
exit_code = 0
Dir['doc/architecture/blueprints/*/index.md'].each do |blueprint|
meta = extract_front_matter(blueprint)
meta.validate
next if meta.errors.empty?
exit_code = 1
puts("✖ ERROR: Invalid #{blueprint}:")
meta.errors.each { |e| puts(" - #{e}") }
end
exit(exit_code)
end
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