Class: MiniGit

Inherits:
Object
  • Object
show all
Defined in:
lib/minigit.rb,
lib/minigit/version.rb

Direct Known Subclasses

Capturing

Defined Under Namespace

Classes: Capturing, GitError

Constant Summary collapse

VERSION = 
"0.0.3"

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(where = nil, opts = {}) ⇒ MiniGit

Returns a new instance of MiniGit.



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# File 'lib/minigit.rb', line 59

def initialize(where=nil, opts={})
  where, opts = nil, where if where.is_a?(Hash)
  @git_command = opts[:git_command] if opts[:git_command]
  if where
    @git_dir, @git_work_tree = find_git_dir(where)
  else
    @git_dir = opts[:git_dir] if opts[:git_dir]
    @git_work_tree = opts[:git_work_tree] if opts[:git_work_tree]
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &block) ⇒ Object 



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# File 'lib/minigit.rb', line 80

def method_missing(meth, *args, &block)
  self.git(meth, *args)
end

Class Attribute Details

.debug ⇒ Object

Returns the value of attribute debug.



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# File 'lib/minigit.rb', line 8

def debug
  @debug
end

.git_command ⇒ Object 



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# File 'lib/minigit.rb', line 11

def git_command
  @git_command || ( (self==::MiniGit) ? 'git' : ::MiniGit.git_command )
end

Instance Attribute Details

#git_command ⇒ Object 



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# File 'lib/minigit.rb', line 43

def git_command
  @git_command || self.class.git_command
end

#git_dir ⇒ Object (readonly)

Returns the value of attribute git_dir.



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# File 'lib/minigit.rb', line 41

def git_dir
  @git_dir
end

#git_work_tree ⇒ Object (readonly)

Returns the value of attribute git_work_tree.



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# File 'lib/minigit.rb', line 41

def git_work_tree
  @git_work_tree
end

Class Method Details

.git(*args) ⇒ Object 



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# File 'lib/minigit.rb', line 19

def git(*args)
  _myself.git(*args)
end

.method_missing(meth, *args, &block) ⇒ Object 



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# File 'lib/minigit.rb', line 15

def method_missing(meth, *args, &block)
  _myself.git(meth, *args)
end

Instance Method Details

#capturing ⇒ Object 



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# File 'lib/minigit.rb', line 116

def capturing
  @capturing ||= Capturing.new(:git_command => @git_command,
                               :git_dir => @git_dir,
                               :git_work_tree => @git_work_tree)
end

#find_git_dir(where) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/minigit.rb', line 47

def find_git_dir(where)
  path = Pathname.new(where)
  raise ArgumentError, "#{where} does not seem to exist" unless path.exist?
  path = path.dirname unless path.directory?
  Dir.chdir(path.to_s) do
    out = `#{git_command} rev-parse --git-dir --show-toplevel`
    $stderr.puts "+ [#{Dir.pwd}] #{git_command} rev-parse --git-dir --show-toplevel # => #{out.inspect}" if MiniGit.debug
    raise ArgumentError, "Invalid repository path #{where}" unless $?.success?
    out
  end.lines.map { |ln| path.join(Pathname.new(ln.strip)).realpath.to_s }
end

#git(*args) ⇒ Object 



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# File 'lib/minigit.rb', line 70

def git(*args)
  argv = switches_for(*args)
  with_git_env do
    $stderr.puts "+ #{git_command} #{Shellwords.join(argv)}" if MiniGit.debug
    rv = system(git_command, *argv)
    raise GitError.new(argv, $?) unless $?.success?
    rv
  end
end

#noncapturing ⇒ Object 



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# File 'lib/minigit.rb', line 122

def noncapturing
  self
end

#switches_for(*args) ⇒ Object 



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# File 'lib/minigit.rb', line 84

def switches_for(*args)
  rv = []
  args.each do |arg|
    case arg
    when Hash
      arg.keys.sort_by(&:to_s).each do |k|
        short = (k.to_s.length == 1)
        switch = short ? "-#{k}" : "--#{k}".gsub('_', '-')
        Array(arg[k]).each do |value|
          if value == true
            rv << switch
          elsif short
            rv << switch
            rv << value.to_s
          else
            rv << "#{switch}=#{value}"
          end
        end
      end
    when String
      rv << arg
    when Enumerable
      rv += switches_for(*arg)
    when Symbol
      rv << arg.to_s.gsub('_', '-')
    else
      rv << arg.to_s
    end
  end
  rv
end