Class: LintFu::SourceControlProvider

Inherits:
Object
  • Object
show all
Defined in:
lib/lint_fu/source_control_provider.rb

Direct Known Subclasses

LintFu::SourceControl::Git

Constant Summary collapse

@@subclasses = 
Set.new

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ SourceControlProvider

Returns a new instance of SourceControlProvider.



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# File 'lib/lint_fu/source_control_provider.rb', line 41

def initialize(path)
  @root = path
end

Class Method Details

.for_directory(path) ⇒ Object

Instantiate the appropriate Provider subclass for a given directory.



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# File 'lib/lint_fu/source_control_provider.rb', line 29

def self.for_directory(path)
  @@subclasses.each do |provider|
    begin
      return provider.new(path)
    rescue Exception => e
      next
    end
  end

  return nil
end

.inherited(base) ⇒ Object

Inherited callback to ensure this base class knows about all derived classes.



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# File 'lib/lint_fu/source_control_provider.rb', line 24

def self.inherited(base)
  @@subclasses << base
end

Instance Method Details

#excerpt(file, range, options = {}) ⇒ Object

Raises:



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# File 'lib/lint_fu/source_control_provider.rb', line 45

def excerpt(file, range, options={})
  blame   = options.has_key?(:blame)   ? options[:blame] : true
  raise ProviderError, "Blame is not supported for this source control provider" if blame

  Dir.chdir(@root) do
    start_line = range.first
    end_line   = range.last
    io         = File.open(File.relative_path(@root, file), 'r')
    lines      = io.readlines
    return lines[(start_line-1)..(end_line-1)]
  end
end