class Treet::Farm

Attributes

repotype[R]
root[R]
xrefkey[R]

Public Class Methods

new(opts) click to toggle source
# File lib/treet/farm.rb, line 8
def initialize(opts)
  raise Errno::ENOENT unless File.directory?(opts[:root])

  @root = opts[:root]
  @xrefkey = opts[:xref]
  @repotype = opts[:repotype] || Treet::Repo
end
plant(opts) click to toggle source

“plant” a new farm: given an array of hashes (in JSON), create a directory of Treet repositories, one per hash. Generate directory names for each repo.

# File lib/treet/farm.rb, line 38
def self.plant(opts)
  jsonfile = opts[:json]
  rootdir = opts[:root]

  array_of_hashes = JSON.load(File.open(jsonfile))
  Dir.chdir(rootdir) do
    array_of_hashes.each do |h|
      uuid = SecureRandom.uuid
      thash = Treet::Hash.new(h)
      thash.to_repo(uuid, opts)
    end
  end

  self.new(opts)
end

Public Instance Methods

add(hash, opts = {}) click to toggle source

add a new repo, with data from an input hash if an :id is provided, then the new repo will be stored under that directory name, otherwise a unique id will be generated

# File lib/treet/farm.rb, line 64
def add(hash, opts = {})
  uuid = opts[:id] || SecureRandom.uuid
  thash = Treet::Hash.new(hash)
  repos[uuid] = thash.to_repo("#{root}/#{uuid}", opts.merge(:repotype => repotype))
end
count() click to toggle source
# File lib/treet/farm.rb, line 76
def count
  xrefs.count
end
export() click to toggle source

export as an array, not as a hash the xref for each repo will be included under `xref.{xrefkey}`

# File lib/treet/farm.rb, line 32
def export
  repos.map {|xref,repo| repo.to_hash}
end
patch(patches) click to toggle source

apply patches to a farm of repos

# File lib/treet/farm.rb, line 55
def patch(patches)
  patches.map do |k,diffs|
    repos[k].patch(diffs)
  end
end
repo(id, opts = {}) click to toggle source
# File lib/treet/farm.rb, line 23
def repo(id, opts = {})
  repotype.new("#{root}/#{id}", opts)
rescue Errno::ENOENT
  # no such repository exists
  nil
end
repos(opts = {}) click to toggle source
# File lib/treet/farm.rb, line 16
def repos(opts = {})
  xrefs.each_with_object({}) do |subdir,h|
    # in a Farm we are looking for repositories under the root
    h[subdir] = repo(subdir, opts)
  end
end
xrefs() click to toggle source
# File lib/treet/farm.rb, line 70
def xrefs
  Dir.chdir(root) do
    Dir.glob("*").select {|f| File.directory?(f)}
  end
end