Class: DownloaderForCloud

Inherits:
Downloader show all
Defined in:
lib/jirametrics/downloader_for_cloud.rb

Constant Summary

Constants inherited from Downloader

Downloader::CURRENT_METADATA_VERSION

Instance Attribute Summary

Attributes inherited from Downloader

#board_id_to_filter_id, #file_system, #metadata, #start_date_in_query

Instance Method Summary collapse

Methods inherited from Downloader

create, #download_board_configuration, #download_sprints, #download_statuses, #download_users, #file_prefix, #find_board_ids, #identify_other_issues_to_be_downloaded, #initialize, #load_metadata, #log, #make_jql, #metadata_pathname, #remove_old_files, #run, #save_metadata, #update_status_history_file

Constructor Details

This class inherits a constructor from Downloader

Instance Method Details

#attach_changelog_to_issues(issue_datas:, issue_jsons:) ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 78

def attach_changelog_to_issues issue_datas:, issue_jsons:
  max_results = 10_000 # The max jira accepts is 10K
  payload = {
    'issueIdsOrKeys' => issue_datas.collect(&:key),
    'maxResults' => max_results
  }
  loop do
    response = @jira_gateway.post_request(
      relative_url: '/rest/api/3/changelog/bulkfetch',
      payload: JSON.generate(payload)
    )

    response['issueChangeLogs'].each do |issue_change_log|
      issue_id = issue_change_log['issueId']
      json = issue_jsons.find { |json| json['id'] == issue_id }

      unless json['changelog']
        # If this is our first time in, there won't be a changelog section
        json['changelog'] = {
          'startAt' => 0,
          'maxResults' => max_results,
          'total' => 0,
          'histories' => []
        }
      end

      new_changes = issue_change_log['changeHistories']
      json['changelog']['total'] += new_changes.size
      json['changelog']['histories'] += new_changes
    end

    next_page_token = response['nextPageToken']
    payload['nextPageToken'] = next_page_token
    break if next_page_token.nil?
  end
end

#bulk_fetch_issues(issue_datas:, board:, in_initial_query:) ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 47

def bulk_fetch_issues issue_datas:, board:, in_initial_query:
  # We used to use the expand option to pull in the changelog directly. Unfortunately
  # that only returns the "recent" changes, not all of them. So now we get the issue
  # without changes and then make a second call for that changes. Then we insert it
  # into the raw issue as if it had been there all along.
  log "  Downloading #{issue_datas.size} issues", both: true
  payload = {
    'fields' => ['*all'],
    'issueIdsOrKeys' => issue_datas.collect(&:key)
  }
  response = @jira_gateway.post_request(
    relative_url: '/rest/api/3/issue/bulkfetch',
    payload: JSON.generate(payload)
  )

  attach_changelog_to_issues issue_datas: issue_datas, issue_jsons: response['issues']

  response['issues'].each do |issue_json|
    issue_json['exporter'] = {
      'in_initial_query' => in_initial_query
    }
    issue = Issue.new(raw: issue_json, board: board)
    data = issue_datas.find { |d| d.key == issue.key }
    data.up_to_date = true
    data.last_modified = issue.updated
    data.issue = issue
  end

  issue_datas
end

#delete_issues_from_cache_that_are_not_in_server(issue_data_hash:, path:) ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 180

def delete_issues_from_cache_that_are_not_in_server issue_data_hash:, path:
  # The gotcha with deleted issues is that they just stop being returned in queries
  # and we have no way to know that they should be removed from our local cache.
  # With the new approach, we ask for every issue that Jira knows about (within
  # the parameters of the query) and then delete anything that's in our local cache
  # but wasn't returned.
  @file_system.foreach path do |file|
    next if file.start_with? '.'
    unless /^(?<key>\w+-\d+)-\d+\.json$/ =~ file
      raise "Unexpected filename in #{path}: #{file}"
    end
    next if issue_data_hash[key] # Still in Jira

    file_to_delete = File.join(path, file)
    log "  Removing #{file_to_delete} from local cache"
    file_system.unlink file_to_delete
  end
end

#download_issues(board:) ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 115

def download_issues board:
  log "  Downloading primary issues for board #{board.id} from #{jira_instance_type}", both: true
  path = File.join(@target_path, "#{file_prefix}_issues/")
  unless @file_system.dir_exist?(path)
    log "  Creating path #{path}"
    @file_system.mkdir(path)
  end

  filter_id = @board_id_to_filter_id[board.id]
  jql = make_jql(filter_id: filter_id)
  intercept_jql = @download_config.project_config.settings['intercept_jql']
  jql = intercept_jql.call jql if intercept_jql

  issue_data_hash = search_for_issues jql: jql, board_id: board.id, path: path

  loop do
    related_issue_keys = Set.new
    issue_data_hash
      .values
      .reject { |data| data.up_to_date }
      .each_slice(100) do |slice|
        slice = bulk_fetch_issues(
          issue_datas: slice, board: board, in_initial_query: true
        )
        slice.each do |data|
          @file_system.save_json(
            json: data.issue.raw, filename: data.cache_path
          )
          # Set the timestamp on the file to match the updated one so that we don't have
          # to parse the file just to find the timestamp
          @file_system.utime time: data.issue.updated, file: data.cache_path

          issue = data.issue
          next unless issue

          parent_key = issue.parent_key(project_config: @download_config.project_config)
          related_issue_keys << parent_key if parent_key

          # Sub-tasks
          issue.raw['fields']['subtasks']&.each do |raw_subtask|
            related_issue_keys << raw_subtask['key']
          end
        end
      end

    # Remove all the ones we already downloaded
    related_issue_keys.reject! { |key| issue_data_hash[key] }

    related_issue_keys.each do |key|
      data = DownloadIssueData.new key: key
      data.found_in_primary_query = false
      data.up_to_date = false
      data.cache_path = File.join(path, "#{key}-#{board.id}.json")
      issue_data_hash[key] = data
    end
    break if related_issue_keys.empty?

    log "  Downloading linked issues for board #{board.id}", both: true
  end

  delete_issues_from_cache_that_are_not_in_server(
    issue_data_hash: issue_data_hash, path: path
  )
end

#jira_instance_type ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 4

def jira_instance_type
  'Jira Cloud'
end

#last_modified(filename:) ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 199

def last_modified filename:
  File.mtime(filename) if File.exist?(filename)
end

#search_for_issues(jql:, board_id:, path:) ⇒ Object 



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# File 'lib/jirametrics/downloader_for_cloud.rb', line 8

def search_for_issues jql:, board_id:, path:
  log "  JQL: #{jql}"
  escaped_jql = CGI.escape jql

  hash = {}
  max_results = 5_000 # The maximum allowed by Jira
  next_page_token = nil
  issue_count = 0

  loop do
    relative_url = +''
    relative_url << '/rest/api/3/search/jql'
    relative_url << "?jql=#{escaped_jql}&maxResults=#{max_results}"
    relative_url << "&nextPageToken=#{next_page_token}" if next_page_token
    relative_url << '&fields=updated'

    json = @jira_gateway.call_url relative_url: relative_url
    next_page_token = json['nextPageToken']

    json['issues'].each do |i|
      key = i['key']
      data = DownloadIssueData.new key: key
      data.key = key
      data.last_modified = Time.parse i['fields']['updated']
      data.found_in_primary_query = true
      data.cache_path = File.join(path, "#{key}-#{board_id}.json")
      data.up_to_date = last_modified(filename: data.cache_path) == data.last_modified
      hash[key] = data
      issue_count += 1
    end

    message = "    Found #{issue_count} issues"
    log message, both: true

    break unless next_page_token
  end
  hash
end