Class: SvnAuto::SvnInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/svnauto/svn_info.rb

Constant Summary collapse

ATTRIBUTES =

at least for now, it’s eaiser to parse via regex instead of XML

[
  [:path,                 /^Path:\s+(.+)$/],
  [:url,                  /^URL:\s+(.+)$/],
  [:repository_root,      /^Repository\s+Root:\s+(.+)$/],
  [:revision,             /^Revision:\s+(\d+)$/],
  [:last_change_revision, /^Last\s+Changed\s+Rev:\s+(\d+)$/],
  [:last_change_date,     /^Last\s+Changed\s+Date:\s+([\d-]+\s+[\d:]+(?:\s+[\d+-]+))/],
]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ SvnInfo

create a new SvnInfo object



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# File 'lib/svnauto/svn_info.rb', line 55

def initialize (attributes={})
  ATTRIBUTES.each {|a| instance_variable_set("@#{a.first}", nil)}

  attributes.each do |k,v|
    raise "bad SvnInfo attribute given to initialize: #{k}" unless ATTRIBUTES.find {|a| a.first == k}
    instance_variable_set("@#{k}", v)
  end
end

Instance Attribute Details

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/svnauto/svn_info.rb', line 41

def status
  @status
end

Class Method Details

.for(path, raise_on_error = false) ⇒ Object

get info about the given path



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# File 'lib/svnauto/svn_info.rb', line 45

def self.for (path, raise_on_error=false)
  info = self.new
  info.load_for_path(path)
  raise "svn info command failed for #{path}" if !info.status and raise_on_error

  info
end

Instance Method Details

#load_for_path(path) ⇒ Object

parse the output of svn info



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# File 'lib/svnauto/svn_info.rb', line 66

def load_for_path (path)
  attributes = ATTRIBUTES.inject({}) {|m, e| m.store(e.first, nil); m}

  @status = Svn.info(path) do |line|
    ATTRIBUTES.each do |a|
      if m = line.match(a.last)
        instance_variable_set("@#{a.first}", m[1])
        attributes[a.first] = true
        break
      end
    end
  end

  # no need to check the status of the regexes if svn info failed
  return @status unless @status

  attributes.each do |k, v|
    unless v
      error  = "please report a bug in #{Constants::ME}, I can't parse the output "
      error << "of 'svn info', specifically, this regex did not match: "
      error << ATTRIBUTES.find {|a| a.first == k}.last.to_s + ' '
      error << "please also include the output of 'svn info #{path}'"
      raise error
    end
  end

  @status
end