Module: Capybara::Screenshot::Diff::Vcs

Defined in:
lib/capybara/screenshot/diff/vcs.rb

Constant Summary collapse

SILENCE_ERRORS = 
Os::ON_WINDOWS ? "2>nul" : "2>/dev/null"

Class Method Summary collapse

Class Method Details

.checkout_vcs(screenshot_path, checkout_path) ⇒ Object 



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# File 'lib/capybara/screenshot/diff/vcs.rb', line 34

def self.checkout_vcs(screenshot_path, checkout_path)
  if svn?
    restore_svn_revision(screenshot_path, checkout_path)
  else
    restore_git_revision(screenshot_path, checkout_path)
  end
end

.restore_git_revision(screenshot_path, checkout_path) ⇒ Object 



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# File 'lib/capybara/screenshot/diff/vcs.rb', line 11

def self.restore_git_revision(screenshot_path, checkout_path)
  vcs_file_path = screenshot_path.relative_path_from(Screenshot.root)

  redirect_target = "#{checkout_path} #{SILENCE_ERRORS}"
  show_command = "git show HEAD~0:./#{vcs_file_path}"
  if Screenshot.use_lfs
    `#{show_command} > #{checkout_path}.tmp #{SILENCE_ERRORS}`
    if $CHILD_STATUS == 0
      `git lfs smudge < #{checkout_path}.tmp > #{redirect_target}`
    end
    File.delete "#{checkout_path}.tmp"
  else
    `#{show_command} > #{redirect_target}`
  end

  if $CHILD_STATUS != 0
    FileUtils.rm_f(checkout_path)
    false
  else
    true
  end
end

.restore_svn_revision(screenshot_path, checkout_path) ⇒ Object 



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# File 'lib/capybara/screenshot/diff/vcs.rb', line 42

def self.restore_svn_revision(screenshot_path, checkout_path)
  committed_file_name = screenshot_path + "../.svn/text-base/" + "#{screenshot_path.basename}.svn-base"
  if committed_file_name.exist?
    FileUtils.cp(committed_file_name, checkout_path)
    return true
  end

  svn_info = `svn info #{screenshot_path} #{SILENCE_ERRORS}`
  if svn_info.present?
    wc_root = svn_info.slice(/(?<=Working Copy Root Path: ).*$/)
    checksum = svn_info.slice(/(?<=Checksum: ).*$/)

    if checksum
      committed_file_name = "#{wc_root}/.svn/pristine/#{checksum[0..1]}/#{checksum}.svn-base"
      FileUtils.cp(committed_file_name, checkout_path)
      return true
    end
  end

  false
end

.svn? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/capybara/screenshot/diff/vcs.rb', line 64

def self.svn?
  (Screenshot.screenshot_area_abs / ".svn").exist?
end