Class: Fastlane::Actions::SlackAction

Inherits:
Fastlane::Action show all
Defined in:
fastlane/lib/fastlane/actions/slack.rb

Constant Summary

Constants inherited from Fastlane::Action

Fastlane::Action::AVAILABLE_CATEGORIES, Fastlane::Action::RETURN_TYPES

Helper collapse

Class Method Summary collapse

Methods inherited from Fastlane::Action

action_name, authors, deprecated_notes, lane_context, method_missing, other_action, output, return_type, return_value, sample_return_value, shell_out_should_use_bundle_exec?, step_text

Class Method Details

.authorObject


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 147

def self.author
  "KrauseFx"
end

.available_optionsObject


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 72

def self.available_options
  [
    FastlaneCore::ConfigItem.new(key: :message,
                                 env_name: "FL_SLACK_MESSAGE",
                                 description: "The message that should be displayed on Slack. This supports the standard Slack markup language",
                                 optional: true),
    FastlaneCore::ConfigItem.new(key: :pretext,
                                 env_name: "FL_SLACK_PRETEXT",
                                 description: "This is optional text that appears above the message attachment block. This supports the standard Slack markup language",
                                 optional: true),
    FastlaneCore::ConfigItem.new(key: :channel,
                                 env_name: "FL_SLACK_CHANNEL",
                                 description: "#channel or @username",
                                 optional: true),
    FastlaneCore::ConfigItem.new(key: :use_webhook_configured_username_and_icon,
                                 env_name: "FL_SLACK_USE_WEBHOOK_CONFIGURED_USERNAME_AND_ICON",
                                 description: "Use webhook's default username and icon settings? (true/false)",
                                 default_value: false,
                                 is_string: false,
                                 optional: true),
    FastlaneCore::ConfigItem.new(key: :slack_url,
                                 env_name: "SLACK_URL",
                                 sensitive: true,
                                 description: "Create an Incoming WebHook for your Slack group",
                                 verify_block: proc do |value|
                                   UI.user_error!("Invalid URL, must start with https://") unless value.start_with?("https://")
                                 end),
    FastlaneCore::ConfigItem.new(key: :username,
                                 env_name: "FL_SLACK_USERNAME",
                                 description: "Overrides the webhook's username property if use_webhook_configured_username_and_icon is false",
                                 default_value: "fastlane",
                                 is_string: true,
                                 optional: true),
    FastlaneCore::ConfigItem.new(key: :icon_url,
                                 env_name: "FL_SLACK_ICON_URL",
                                 description: "Overrides the webhook's image property if use_webhook_configured_username_and_icon is false",
                                 default_value: "https://fastlane.tools/assets/img/fastlane_icon.png",
                                 is_string: true,
                                 optional: true),
    FastlaneCore::ConfigItem.new(key: :payload,
                                 env_name: "FL_SLACK_PAYLOAD",
                                 description: "Add additional information to this post. payload must be a hash containing any key with any value",
                                 default_value: {},
                                 is_string: false),
    FastlaneCore::ConfigItem.new(key: :default_payloads,
                                 env_name: "FL_SLACK_DEFAULT_PAYLOADS",
                                 description: "Remove some of the default payloads. More information about the available payloads on GitHub",
                                 optional: true,
                                 type: Array),
    FastlaneCore::ConfigItem.new(key: :attachment_properties,
                                 env_name: "FL_SLACK_ATTACHMENT_PROPERTIES",
                                 description: "Merge additional properties in the slack attachment, see https://api.slack.com/docs/attachments",
                                 default_value: {},
                                 is_string: false),
    FastlaneCore::ConfigItem.new(key: :success,
                                 env_name: "FL_SLACK_SUCCESS",
                                 description: "Was this build successful? (true/false)",
                                 optional: true,
                                 default_value: true,
                                 is_string: false),
    FastlaneCore::ConfigItem.new(key: :fail_on_error,
                                 env_name: "FL_SLACK_FAIL_ON_ERROR",
                                 description: "Should an error sending the slack notification cause a failure? (true/false)",
                                 optional: true,
                                 default_value: true,
                                 is_string: false),
    FastlaneCore::ConfigItem.new(key: :link_names,
                                 env_name: "FL_SLACK_LINK_NAMES",
                                 description: "Find and link channel names and usernames (true/false)",
                                 optional: true,
                                 default_value: false,
                                 is_string: false)
  ]
end

.categoryObject


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 177

def self.category
  :notifications
end

.deep_merge(a, b) ⇒ Object


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 275

def self.deep_merge(a, b)
  merger = proc do |key, v1, v2|
    Hash === v1 && Hash === v2 ?
           v1.merge(v2, &merger) : Array === v1 && Array === v2 ?
             v1 | v2 : [:undefined, nil, :nil].include?(v2) ? v1 : v2
  end
  a.merge(b, &merger)
end

.descriptionObject


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 68

def self.description
  "Send a success/error message to your [Slack](https://slack.com) group"
end

.detailsObject


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 181

def self.details
  "Create an Incoming WebHook and export this as `SLACK_URL`. Can send a message to **#channel** (by default), a direct message to **@username** or a message to a private group **group** with success (green) or failure (red) status."
end

.example_codeObject


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 151

def self.example_code
  [
    'slack(message: "App successfully released!")',
    'slack(
      message: "App successfully released!",
      channel: "#channel",  # Optional, by default will post to the default channel configured for the POST URL.
      success: true,        # Optional, defaults to true.
      payload: {            # Optional, lets you specify any number of your own Slack attachments.
        "Build Date" => Time.new.to_s,
        "Built by" => "Jenkins",
      },
      default_payloads: [:git_branch, :git_author], # Optional, lets you specify a whitelist of default payloads to include. Pass an empty array to suppress all the default payloads.
                                                    # Don\'t add this key, or pass nil, if you want all the default payloads. The available default payloads are: `lane`, `test_result`, `git_branch`, `git_author`, `last_git_commit`, `last_git_commit_hash`.
      attachment_properties: { # Optional, lets you specify any other properties available for attachments in the slack API (see https://api.slack.com/docs/attachments).
                               # This hash is deep merged with the existing properties set using the other properties above. This allows your own fields properties to be appended to the existing fields that were created using the `payload` property for instance.
        thumb_url: "http://example.com/path/to/thumb.png",
        fields: [{
          title: "My Field",
          value: "My Value",
          short: true
        }]
      }
    )'
  ]
end

.generate_slack_attachments(options) ⇒ Object


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 189

def self.generate_slack_attachments(options)
  color = (options[:success] ? 'good' : 'danger')
  should_add_payload = ->(payload_name) { options[:default_payloads].nil? || options[:default_payloads].map(&:to_sym).include?(payload_name.to_sym) }

  slack_attachment = {
    fallback: options[:message],
    text: options[:message],
    pretext: options[:pretext],
    color: color,
    mrkdwn_in: ["pretext", "text", "fields", "message"],
    fields: []
  }

  # custom user payloads
  slack_attachment[:fields] += options[:payload].map do |k, v|
    {
      title: k.to_s,
      value: Slack::Notifier::Util::LinkFormatter.format(v.to_s),
      short: false
    }
  end

  # Add the lane to the Slack message
  # This might be nil, if slack is called as "one-off" action
  if should_add_payload[:lane] && Actions.lane_context[Actions::SharedValues::LANE_NAME]
    slack_attachment[:fields] << {
      title: 'Lane',
      value: Actions.lane_context[Actions::SharedValues::LANE_NAME],
      short: true
    }
  end

  # test_result
  if should_add_payload[:test_result]
    slack_attachment[:fields] << {
      title: 'Result',
      value: (options[:success] ? 'Success' : 'Error'),
      short: true
    }
  end

  # git branch
  if Actions.git_branch && should_add_payload[:git_branch]
    slack_attachment[:fields] << {
      title: 'Git Branch',
      value: Actions.git_branch,
      short: true
    }
  end

  # git_author
  if Actions.git_author_email && should_add_payload[:git_author]
    if FastlaneCore::Env.truthy?('FASTLANE_SLACK_HIDE_AUTHOR_ON_SUCCESS') && options[:success]
      # We only show the git author if the build failed
    else
      slack_attachment[:fields] << {
        title: 'Git Author',
        value: Actions.git_author_email,
        short: true
      }
    end
  end

  # last_git_commit
  if Actions.last_git_commit_message && should_add_payload[:last_git_commit]
    slack_attachment[:fields] << {
      title: 'Git Commit',
      value: Actions.last_git_commit_message,
      short: false
    }
  end

  # last_git_commit_hash
  if Actions.last_git_commit_hash(true) && should_add_payload[:last_git_commit_hash]
    slack_attachment[:fields] << {
      title: 'Git Commit Hash',
      value: Actions.last_git_commit_hash(short: true),
      short: false
    }
  end

  # merge additional properties
  deep_merge(slack_attachment, options[:attachment_properties])
end

.is_supported?(platform) ⇒ Boolean

Returns:


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 7

def self.is_supported?(platform)
  true
end

.run(options) ⇒ Object


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 23

def self.run(options)
  require 'slack-notifier'

  options[:message] = self.trim_message(options[:message].to_s || '')
  options[:message] = Slack::Notifier::Util::LinkFormatter.format(options[:message])

  options[:pretext] = options[:pretext].gsub('\n', "\n") unless options[:pretext].nil?

  if options[:channel].to_s.length > 0
    channel = options[:channel]
    channel = ('#' + options[:channel]) unless ['#', '@'].include?(channel[0]) # send message to channel by default
  end

  username = options[:use_webhook_configured_username_and_icon] ? nil : options[:username]

  notifier = Slack::Notifier.new(options[:slack_url], channel: channel, username: username)

  link_names = options[:link_names]

  icon_url = options[:use_webhook_configured_username_and_icon] ? nil : options[:icon_url]

  slack_attachment = generate_slack_attachments(options)

  return [notifier, slack_attachment] if Helper.test? # tests will verify the slack attachments and other properties

  begin
    results = notifier.ping('', link_names: link_names, icon_url: icon_url, attachments: [slack_attachment])
  rescue => exception
    UI.error("Exception: #{exception}")
  ensure
    result = results.first if results
    if !result.nil? && result.code.to_i == 200
      UI.success('Successfully sent Slack notification')
    else
      UI.verbose(result) unless result.nil?
      message = "Error pushing Slack message, maybe the integration has no permission to post on this channel? Try removing the channel parameter in your Fastfile, this is usually caused by a misspelled or changed group/channel name or an expired SLACK_URL"
      if options[:fail_on_error]
        UI.user_error!(message)
      else
        UI.error(message)
      end
    end
  end
end

.trim_message(message) ⇒ Object

As there is a text limit in the notifications, we are usually interested in the last part of the message e.g. for tests


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# File 'fastlane/lib/fastlane/actions/slack.rb', line 14

def self.trim_message(message)
  # We want the last 7000 characters, instead of the first 7000, as the error is at the bottom
  start_index = [message.length - 7000, 0].max
  message = message[start_index..-1]
  # We want line breaks to be shown on slack output so we replace
  # input non-interpreted line break with interpreted line break
  message.gsub('\n', "\n")
end