Class: ReviewReport

Inherits:
Object
  • Object
show all
Defined in:
lib/github_repo_statistics/review_report.rb

Instance Method Summary collapse

Constructor Details

#initialize(token:, repo:, branch:, duration:) ⇒ ReviewReport

Returns a new instance of ReviewReport.



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# File 'lib/github_repo_statistics/review_report.rb', line 7

def initialize(token:, repo:, branch:, duration:)
  @token = token
  @repo = repo
  @branch = branch
  @duration_in_days = duration
end

Instance Method Details

#percentile(array, percentile) ⇒ Object 



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# File 'lib/github_repo_statistics/review_report.rb', line 14

def percentile(array, percentile)
  sorted_array = array.sort
  k = (percentile * (sorted_array.length - 1)).floor
  l = k + 1
  q1 = sorted_array[k]
  q2 = sorted_array[l]
  q1 + (q2 - q1) * (percentile * (sorted_array.length - 1) - k)
end

#report ⇒ Object 



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# File 'lib/github_repo_statistics/review_report.rb', line 23

def report
  client = Octokit::Client.new(access_token: @token)
  client.auto_paginate = true

  # Fetch pull requests created after the target date
  pull_requests = client.list_issues(@repo, state: 'closed', since: DateTime.now - @duration_in_days)

  # Group pull requests by week
  pull_requests_by_week = pull_requests.group_by { |pr| pr[:closed_at].strftime('%Y-%W') }

  weeks = @duration_in_days / 7

  # Iterate over months within the days duration limit
  pull_requests_by_week.keys.sort[-weeks..].each do |week|
    total_time_seconds = 0
    total_count = 0
    total_count_calc = 0
    total_reviews = 0
    reviews_with_comments = 0
    change_requested_reviews = 0

    # Iterate over pull requests in the week
    pull_requests_by_week[week].each do |issue|
      pull_request = client.pull_request(@repo, issue.number)
      last_commit_sha = pull_request[:head][:sha]
      last_commit = client.commit(@repo, last_commit_sha)

      reviews = []
      review_page = 1
      loop do
        response = client.pull_request_reviews(@repo, pull_request[:number], per_page: 100,
                                                                             page: review_page)
        break if response.empty?

        reviews.concat(response)
        review_page += 1
      end

      total_reviews += reviews.size

      next unless reviews.any?

      last_review = reviews.max_by { |review| review[:submitted_at] }
      time_taken_seconds = (last_review[:submitted_at] - last_commit[:commit][:author][:date]).abs

      if time_taken_seconds / 3600.0 < 8 && time_taken_seconds / 3600.0 > 0.3
        total_time_seconds += time_taken_seconds
        total_count_calc += 1
      end
      total_count += 1
      # Count reviews with comments
      reviews_with_comments += reviews.count do |review|
        comments = client.pull_request_review_comments(@repo, pull_request[:number], review[:id])
        comments.any?
      end

      # Count reviews with "change_requested" state
      change_requested_reviews += reviews.count { |review| review[:state] == 'CHANGES_REQUESTED' }
    end

    if total_count.positive?
      average_time_hours = total_time_seconds / total_count_calc / 3600.0 # Convert seconds to hours
      puts "Calendar week #{week}: Average time taken for #{total_count} pull requests is #{average_time_hours.round(2)} hours."
      puts "  Total reviews: #{total_reviews}"
      puts "  Reviews with comments: #{reviews_with_comments}"
      puts "  Change requested reviews: #{change_requested_reviews}"

      # ENV['BQ_CREDENTIALS'] = `cat /Users/serghei.moret/.config/gcloud/application_default_credentials.json`

      if ENV['BQ_CREDENTIALS']
        require 'google/cloud/bigquery'
        require 'json'
        creds = JSON.parse(ENV['BQ_CREDENTIALS'])
        bigquery = Google::Cloud::Bigquery.new(
          project_id: 'hellofresh-android',
          credentials: creds
        )
        dataset = bigquery.dataset 'github_data'

        query = <<~SQL
          MERGE INTO pr_reviews AS target
          USING (SELECT '#{week}' AS calendar_week, '#{@repo}' AS platform) AS source
          ON target.calendar_week = source.calendar_week AND target.platform = source.platform
          WHEN MATCHED THEN
            UPDATE SET
              target.change_requested_reviews = #{change_requested_reviews},
              target.reviews_with_comments = #{reviews_with_comments},
              target.total_reviews = #{total_reviews},
              target.average_review_time_hours = #{average_time_hours.round(2)},
              target.total_prs = #{total_count},
              target.platform = '#{@repo}'
          WHEN NOT MATCHED THEN
            INSERT (calendar_week, total_prs, average_review_time_hours, total_reviews, reviews_with_comments, change_requested_reviews, platform)
            VALUES ('#{week}', #{total_count}, #{average_time_hours.round(2)}, #{total_reviews}, #{reviews_with_comments}, #{change_requested_reviews}, '#{@repo}');
        SQL

        dataset.query(query)
      end
    else
      puts "#{week}: No pull requests with reviews."
    end
  end
end