Class: Danger::PR

Inherits:
Runner
  • Object
show all
Defined in:
lib/danger/commands/pr.rb

Instance Attribute Summary

Attributes inherited from Runner

#cork

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ PR

Returns a new instance of PR.



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# File 'lib/danger/commands/pr.rb', line 20

def initialize(argv)
  @pr_url = argv.shift_argument
  @clear_http_cache = argv.flag?("clear-http-cache", false)
  dangerfile = argv.option("dangerfile", "Dangerfile")

  super

  @dangerfile_path = dangerfile if File.exist?(dangerfile)

  setup_pry if should_pry?(argv)
end

Class Method Details

.options ⇒ Object 



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# File 'lib/danger/commands/pr.rb', line 12

def self.options
  [
    ["--clear-http-cache", "Clear the local http cache before running Danger locally."],
    ["--pry", "Drop into a Pry shell after evaluating the Dangerfile."],
    ["--dangerfile=<path/to/dangerfile>", "The location of your Dangerfile"]
  ]
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/danger/commands/pr.rb', line 60

def run
  ENV["DANGER_USE_LOCAL_GIT"] = "YES"
  ENV["LOCAL_GIT_PR_URL"] = @pr_url if @pr_url

  # setup caching for Github calls to hitting the API rate limit too quickly
  cache_file = File.join(ENV["DANGER_TMPDIR"] || Dir.tmpdir, "danger_local_cache")
  cache = HTTPCache.new(cache_file, clear_cache: @clear_http_cache)
  Octokit.middleware = Faraday::RackBuilder.new do |builder|
    builder.use Faraday::HttpCache, store: cache, serializer: Marshal, shared_cache: false
    builder.use Octokit::Response::RaiseError
    builder.adapter Faraday.default_adapter
  end

  env = EnvironmentManager.new(ENV, cork)
  dm = Dangerfile.new(env, cork)
  dm.init_plugins

  source = dm.env.ci_source
  if source.nil? or source.repo_slug.empty?
    cork.puts "danger pr failed because it only works with GitHub projects at the moment. Sorry.".red
    exit 0
  end

  gh = dm.env.request_source

  cork.puts "Running your Dangerfile against this PR - https://#{gh.host}/#{source.repo_slug}/pull/#{source.pull_request_id}"

  if verbose != true
    cork.puts "Turning on --verbose"
    dm.verbose = true
  end

  cork.puts

  # We can use tokenless here, as it's running on someone's computer
  # and is IP locked, as opposed to on the CI.
  gh.support_tokenless_auth = true

  begin
    gh.fetch_details
  rescue Octokit::NotFound
    cork.puts "Local repository was not found on GitHub. If you're trying to test a private repository please provide a valid API token through " + "DANGER_GITHUB_API_TOKEN".yellow + " environment variable."
    return
  end

  dm.env.request_source = gh

  begin
    dm.env.fill_environment_vars
    dm.env.ensure_danger_branches_are_setup
    dm.env.scm.diff_for_folder(".", from: Danger::EnvironmentManager.danger_base_branch, to: Danger::EnvironmentManager.danger_head_branch)

    dm.parse(Pathname.new(@dangerfile_path))
    dm.print_results
  ensure
    dm.env.clean_up
  end
end

#setup_pry ⇒ Object 



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# File 'lib/danger/commands/pr.rb', line 36

def setup_pry
  File.delete "_Dangerfile.tmp" if File.exist? "_Dangerfile.tmp"
  FileUtils.cp @dangerfile_path, "_Dangerfile.tmp"
  File.open("_Dangerfile.tmp", "a") do |f|
    f.write("binding.pry; File.delete(\"_Dangerfile.tmp\")")
  end
  @dangerfile_path = "_Dangerfile.tmp"
end

#should_pry?(argv) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/danger/commands/pr.rb', line 32

def should_pry?(argv)
  argv.flag?("pry", false) && !@dangerfile_path.empty? && validate_pry_available
end

#validate! ⇒ Object 



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# File 'lib/danger/commands/pr.rb', line 53

def validate!
  super
  unless @dangerfile_path
    help! "Could not find a Dangerfile."
  end
end

#validate_pry_available ⇒ Object 



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# File 'lib/danger/commands/pr.rb', line 45

def validate_pry_available
  require "pry"
rescue LoadError
  cork.warn "Pry was not found, and is required for 'danger pr --pry'."
  cork.print_warnings
  abort
end