Class: Drupid::DownloadStrategy::Git

Inherits:
Base
  • Object
show all
Defined in:
lib/drupid/download_strategy.rb

Instance Attribute Summary

Attributes inherited from Base

#dest, #name, #staged_path, #url

Instance Method Summary collapse

Methods included from Utils

#blah, #bzr, #compare_paths, #curl, #cvs, #debug, #dont_debug, #git, #hg, #ignore_interrupts, #interactive_shell, #odie, #ofail, #ohai, #owarn, #runBabyRun, #svn, #tempdir, #uncompress, #which, #writeFile

Constructor Details

#initialize(url, dest, name, download_specs = {}) ⇒ Git

Returns a new instance of Git.


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# File 'lib/drupid/download_strategy.rb', line 253

def initialize url, dest, name, download_specs = {}
  super
  @clone = @dest + @name
end

Instance Method Details

#fetch ⇒ Object 


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# File 'lib/drupid/download_strategy.rb', line 266

def fetch
  raise "You must install Git." unless which "git"

  blah "Cloning #{@url}"

  if @clone.exist?
    Dir.chdir(@clone) do
      # Check for interrupted clone from a previous install
      unless system 'git', 'status', '-s'
        blah "Removing invalid .git repo from cache"
        FileUtils.rm_rf @clone
      end
    end
  end

  unless @clone.exist?
    clone_args = ['clone']
    clone_args << '--depth' << '1' if support_depth?

    if @specs.has_key?('branch')
      clone_args << '--branch' << @specs['branch']
    elsif @specs.has_key?('tag')
      clone_args << '--branch' << @specs['tag']
    end

    clone_args << @url << @clone
    git(*clone_args)
  else
    blah "Updating #{@clone}"
    Dir.chdir(@clone) do
      git 'config', 'remote.origin.url', @url

      rof =
        if @specs.has_key?('branch')
          "+refs/heads/#{@specs['branch']}:refs/remotes/origin/#{@specs['branch']}"
        elsif @specs.has_key?('tag')
          "+refs/tags/#{@specs['tag']}:refs/tags/#{@specs['tag']}"
        else
          '+refs/heads/master:refs/remotes/origin/master'
        end
      git 'config', 'remote.origin.fetch', rof

      git_args = %w[fetch origin]
      git(*git_args)
    end
  end
end

#host_supports_depth? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/drupid/download_strategy.rb', line 262

def host_supports_depth?
  @url =~ %r(git://) or @url =~ %r(https://github.com/)
end

#stage(wd = @dest) ⇒ Object

Stages this download into the specified directory. Invokes #fetch to retrieve the file if needed.


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# File 'lib/drupid/download_strategy.rb', line 316

def stage wd = @dest
  fetch unless @clone.exist?
  dont_debug { wd.mkpath }
  debug "Staging into #{wd}"
  target = wd + @clone.basename
  Dir.chdir @clone do
    if @specs.has_key?('branch')
      git 'checkout', "origin/#{@specs['branch']}", '--'
    elsif @specs.has_key?('tag')
      git 'checkout', @specs['tag'], '--'
    elsif @specs.has_key?('revision')
      git 'checkout', @specs['revision'], '--'
    else
      # otherwise the checkout-index won't checkout HEAD
      # https://github.com/mxcl/homebrew/issues/7124
      # must specify origin/HEAD, otherwise it resets to the current local HEAD
      git 'reset', '--hard', 'origin/HEAD'
    end
    # http://stackoverflow.com/questions/160608/how-to-do-a-git-export-like-svn-export
    git 'checkout-index', '-a', '-f', "--prefix=#{target}/"
    # check for submodules
    if File.exist?('.gitmodules')
      git 'submodule', 'init'
      git 'submodule', 'update'
      sub_cmd = "git checkout-index -a -f \"--prefix=#{target}/$path/\""
      git 'submodule', '--quiet', 'foreach', '--recursive', sub_cmd
    end
  end
  @staged_path = target
end

#support_depth? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/drupid/download_strategy.rb', line 258

def support_depth?
  !(@specs.has_key?('revision')) and host_supports_depth?
end