Class: MultiRepo::Ref

Inherits:
Object
  • Object
show all
Defined in:
lib/multirepo/git/ref.rb

Direct Known Subclasses

Branch, Commit

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repo, name) ⇒ Ref

Returns a new instance of Ref.



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# File 'lib/multirepo/git/ref.rb', line 7

def initialize(repo, name)
  @repo = repo
  @name = name
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/multirepo/git/ref.rb', line 5

def name
  @name
end

Instance Method Details

#can_fast_forward_to?(ref) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/multirepo/git/ref.rb', line 31

def can_fast_forward_to?(ref)
  # http://stackoverflow.com/a/2934062/167983
  rev_parse_output = GitRunner.run(@repo.path, "rev-parse #{@name}", Verbosity::OUTPUT_NEVER)
  merge_base_output = GitRunner.run(@repo.path, "merge-base \"#{rev_parse_output}\" \"#{ref.name}\"", Verbosity::OUTPUT_NEVER)
  return merge_base_output == rev_parse_output
end

#commit_id ⇒ Object 



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# File 'lib/multirepo/git/ref.rb', line 17

def commit_id
  GitRunner.run(@repo.path, "rev-parse #{@name}", Verbosity::OUTPUT_NEVER).strip
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/multirepo/git/ref.rb', line 12

def exists?
  output = GitRunner.run(@repo.path, "rev-parse --verify --quiet #{@name}", Verbosity::OUTPUT_NEVER).strip
  return output != ""
end

#merge_commit? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/multirepo/git/ref.rb', line 25

def merge_commit?
  lines = GitRunner.run(@repo.path, "cat-file -p #{@name}", Verbosity::OUTPUT_NEVER).split("\n")
  parents = lines.grep(/^parent /)
  return parents.count > 1
end

#short_commit_id ⇒ Object 



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# File 'lib/multirepo/git/ref.rb', line 21

def short_commit_id
  GitRunner.run(@repo.path, "rev-parse --short #{@name}", Verbosity::OUTPUT_NEVER).strip
end