Class: Externals::Repository

Inherits:
Object
  • Object
show all
Defined in:
lib/externals/repository.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base_dir, name, repo_url, rel_path) ⇒ Repository

Returns a new instance of Repository.



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# File 'lib/externals/repository.rb', line 8

def initialize(base_dir, name, repo_url, rel_path)
  @base_dir = base_dir
  @name = name
  @repo_url = repo_url
  @rel_path = rel_path
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/externals/repository.rb', line 6

def name
  @name
end

Instance Method Details

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/externals/repository.rb', line 15

def exists?
  File.exist?(repo_path)
end

#freeze ⇒ Object 



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# File 'lib/externals/repository.rb', line 19

def freeze
  install unless exists?
  if is_not_a_git_repo?
    puts "already frozen: #{@name}"
  elsif is_a_git_repo?
    overwrite = true
    # Conditionally destroy compressed repo
    if is_compressed?
      puts "You already have a frozen git snapshot. Overwrite?"
      overwrite = STDIN.gets.downcase[0..0] == 'y'
    end
    Dir.chdir(repo_path) do
      if overwrite
        # Make temp directory
        FileUtils.mkdir_p(temp_path)
        # Compress .git folder to temp
        `tar czf #{temp_path}/#{@name}.git.tgz .git` unless $TESTING
      end
      # Remove repository's .git folder
      FileUtils.rm_r('.git')
    end
    puts "frozen: #{@name}"
  end
end

#install ⇒ Object 



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# File 'lib/externals/repository.rb', line 44

def install
  # Create directory that we will clone into
  unless File.exist?(checkout_path)
    FileUtils.mkdir_p(checkout_path)
  end
  Dir.chdir(checkout_path) do
    # Remove repository if exists
    FileUtils.rm_rf(@name)
    # Clone repository
    `git clone #{@repo_url} #{@name}` unless $TESTING
  end
end

#is_a_git_repo? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/externals/repository.rb', line 57

def is_a_git_repo?
  File.exist?("#{repo_path}/.git")
end

#is_compressed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/externals/repository.rb', line 65

def is_compressed?
  File.exists?("#{temp_path}/#{@name}.git.tgz")
end

#is_not_a_git_repo? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/externals/repository.rb', line 61

def is_not_a_git_repo?
  !is_a_git_repo?
end

#is_not_compressed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/externals/repository.rb', line 69

def is_not_compressed?
  !is_compressed?
end

#status ⇒ Object 



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# File 'lib/externals/repository.rb', line 73

def status
  if exists?
    puts "#{is_a_git_repo? ? "not frozen" : "frozen and #{is_compressed? ? "has" : "does not have"} a snapshot"}: #{@name}"
  else
    puts "does not exist and #{is_compressed? ? "has" : "does not have"} a snapshot: #{@name}"
  end
end

#unfreeze ⇒ Object 



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# File 'lib/externals/repository.rb', line 81

def unfreeze
  if is_a_git_repo?
    puts "already unfrozen: #{@name}"
  elsif !exists?
    install
    puts "#{@name} unfrozen"
  elsif is_not_a_git_repo?
    if is_compressed?
      Dir.chdir(temp_path) do
        # Decompress git snapshot
        `tar xzf #{@name}.git.tgz` unless $TESTING
        # Move back to repo
        FileUtils.mv(".git", repo_path)
        # Remove snapshot
        FileUtils.rm_f("#{@name}.git.tgz")
      end
    else
      # Clone fresh repo if no snapshot found
      install
    end
    puts "unfrozen: #{@name}"
  end
end