noraworld
diff --git a/‎lib/article.rb
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+30Lines changed: 30 additions & 0 deletions b/‎lib/article.rb
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+30Lines changed: 30 additions & 0 deletions
diff --git a/‎lib/qiita.rb
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+116Lines changed: 116 additions & 0 deletions b/‎lib/qiita.rb
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+116Lines changed: 116 additions & 0 deletions
diff --git a/‎main.rb
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+27Lines changed: 27 additions & 0 deletions b/‎main.rb
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+27Lines changed: 27 additions & 0 deletions
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class Article
+  def initialize(path:)
+    @path = path
+  end
+
+  # Get a content of an article file without a YAML header
+  def content
+    File.open(@path, 'r') do |file|
+      file.read.gsub(/\A#{Regexp.escape("---\n" + header + '---')}/, '').gsub(/\A\n+/, '')
+    end
+  end
+
+  # Get a YAML header of an article file
+  def header
+    header = ''
+
+    File.open(@path, 'r') do |file|
+      file.each_line.with_index do |line, index|
+        next  if index.zero?    && line =~ /^---/ # Go onto next if the first "---" line of the YAML header
+        break if index.nonzero? && line =~ /^---/ # Break if the last "---" line of the YAML header
+
+        header += line
+      end
+    end
+
+    header
+  end
+end
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+# frozen_string_literal: true
+
+require 'json'
+require 'faraday'
+
+class Qiita
+  API_BASE_URL = 'https://qiita.com'
+  API_ITEM_ENDPOINT = '/api/v2/items'
+
+  # @content: String: A content of an article
+  # @header:  Hash:   A YAML header of an article
+  # @mode:    String: A value to indicate that an article is created, updated, or deleted
+  # @path:    String: A path where an article exists
+  def initialize(content:, header:, mode:, path:)
+    @content = content
+    @header = header
+    @mode = mode
+    @path = path
+  end
+
+  # Publish an article to Qiita
+  #
+  # Returns a parsed response body
+  # https://qiita.com/api/v2/docs
+  #
+  def publish
+    connection = Faraday.new(API_BASE_URL)
+
+    response = case @mode
+    when 'create'
+      connection.post(&request_params)
+    when 'update'
+      connection.patch(&request_params)
+    end
+
+    JSON.parse(response.body)
+  end
+
+  # Update a mapping file
+  def update_mapping_file(item_id)
+    File.open(ENV['MAPPING_FILEPATH'], 'a') do |file|
+      file.puts "#{@path}, #{item_id}"
+    end
+  end
+
+  private
+
+  def request_params
+    Proc.new do |request|
+      request.url(request_url)
+      request.headers['Authorization'] = "Bearer #{ENV['QIITA_ACCESS_TOKEN']}"
+      request.headers['Content-Type'] = 'application/json'
+      request.body = request_body
+    end
+  end
+
+  def request_url
+    id = @mode == 'update' ? "/#{item_id}" : nil
+
+    "#{API_ITEM_ENDPOINT}#{id}"
+  end
+
+  def request_body
+    body = {
+      body: @content.force_encoding('UTF-8'),
+      coediting: false,
+      group_url_name: nil,
+      private: private?,
+      tags: tags,
+      title: @header['title']
+    }.freeze
+
+    body = body.merge(tweet: public?) if @mode == 'create'
+
+    body.to_json
+  end
+
+  def public?
+    @header['published']
+  end
+
+  def private?
+    !@header['published']
+  end
+
+  # Get tags from a YAML header
+  #
+  # [
+  #   { name: 'PulseAudio' },
+  #   { name: 'Bluetooth' },
+  #   { name: 'RaspberryPi' }
+  # ]
+  #
+  def tags
+    @header['topics'].map { |topic| { name: topic } }
+  end
+
+  # Get a Qiita item ID corresponding to an article path
+  def item_id
+    mappings.grep(/\A^#{Regexp.escape(@path)}/).first.split.last
+  end
+
+  # Get a content of a mapping file
+  #
+  # [
+  #   "articles/heroku-postdeploy-runs-only-once.md, 1c57bd07cf0eb8ae807e",
+  #   "articles/heroku-rails-mysql.md, 09dac6e4340b85e35be4",
+  #   "articles/rails-command-hangs.md, 5f0f0a9bba2ec1dfab67"
+  # ]
+  #
+  def mappings
+    File.open(ENV['MAPPING_FILEPATH'], 'r') do |file|
+      file.read.split("\n")
+    end
+  end
+end
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+# Load if it is not executed via GitHub Actions
+#   https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+unless ENV['CI']
+  require 'pry'
+  require 'dotenv'
+
+  Dotenv.load
+end
+
+require 'yaml'
+require_relative 'lib/article'
+require_relative 'lib/qiita'
+
+ENV['ADDED_FILES']&.split&.each do |path|
+  article = Article.new(path: path)
+  qiita = Qiita.new(content: article.content, header: YAML.safe_load(article.header), mode: 'create', path: path)
+  response_body = qiita.publish
+  qiita.update_mapping_file(response_body['id'])
+end
+
+ENV['MODIFIED_FILES']&.split&.each do |path|
+  article = Article.new(path: path)
+  qiita = Qiita.new(content: article.content, header: YAML.safe_load(article.header), mode: 'update', path: path)
+  qiita.publish
+end