Class: Corundum::Monotone

Inherits:
VersionControl show all
Defined in:
lib/corundum/version_control/monotone.rb

Instance Method Summary collapse

Methods inherited from VersionControl

#default_configuration

Instance Method Details

#base_revision ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 73

def base_revision
  mtn_automate("get_base_revision_id").chomp
end

#define ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 99

def define
  super

  in_namespace do
    task :on_branch do
      branches = parse_certs(mtn_automate("certs", base_revision))["branch"] || []
      unless branches.include?(branch)
        fail "Not on branch #{branch}"
      end
    end

    task :not_tagged do
      items = parse_basic_io(mtn_automate("tags", branch))
      tags = items.find{|pair| pair[0] == "tag" && pair[1] == tag}
      unless tags.nil?
        fail "Tag #{tag} already exists in branch #{branch}"
      end
    end

    task :workspace_committed => :on_branch do
      items = parse_basic_io(mtn_automate("inventory"))
      changed = items.find{|pair| pair[0] == "changes"}
      unless changed.nil?
        fail "Uncommitted changes exist in workspace"
      end
    end

    task :gemspec_files_added => :on_branch do
      items = stanzas("path", parse_basic_io(mtn_automate("inventory")))
      items.delete_if{|item| item["status"] == "unknown"}
      known_paths = items.each_with_object({}) do |item, hash|
        hash[item["path"]] = true
      end

      files = gemspec_files.dup
      files.delete_if{|path| known_paths[path]}
      unless files.empty?
        fail "Gemspec files not in version control: #{files.join(" ")}"
      end
    end

    task :tag => :on_branch do
      mtn_automate("cert", base_revision, "tag", tag)
    end

    task :sync do
      mtn_automate("sync")
    end

    task :check_in => [:sync]
  end
end

#guess_branch ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 77

def guess_branch
  puts "Guessing branch - configure Monotone > branch"
  certs = parse_certs(mtn_automate("certs", base_revision))
  puts "  Guessed: #{certs["branch"].first}"
  certs["branch"].first
end

#mtn_automate(cmd, *args) ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 14

def mtn_automate(cmd, *args)
  result = Mattock::CommandLine.new("mtn", "automate", cmd) do |cmd|
    cmd.options += args
  end.run
  result.must_succeed!
  result.stdout
end

#parse_basic_io(string) ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 22

def parse_basic_io(string)
  items = []
  scanner = StringScanner.new(string)
  scanner.scan(/\s*/m)
  until scanner.eos? do

    symbol = scanner.scan(/[a-z_]*/)
    scanner.scan(/\s*/)
    value = ""
    case scanner.scan(/["\[]/)
    when '"'
      while (value += scanner.scan(/[^"]*/)) =~ /\\$/
      end
      scanner.scan(/"/)
    when '['
      value = scanner.scan(/[^\]]*/)
      scanner.scan(/]/)
    else
      raise "Improperly formatted basic_io: \
        \n  Got: #{items.inspect} + #{symbol}\
        \n  Rest:\
        \n    #{scanner.rest}"
    end
    items << [symbol, value]
    scanner.scan(/\s*/m)
  end
  return items
end

#parse_certs(string) ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 51

def parse_certs(string)
  items = parse_basic_io(string)
  pair = []
  hash = Hash.new do |h,k|
    h[k] = []
  end
  items.each do |name, value|
    case name
    when "name"
      pair[0] = value
    when "value"
      pair[1] = value
    when "trust"
      if value == "trusted"
        hash[pair[0]] << pair[1]
      end
      pair = []
    end
  end
  hash
end

#resolve_configuration ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 9

def resolve_configuration
  super
  @branch ||= guess_branch
end

#stanzas(first_item, items) ⇒ Object 



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# File 'lib/corundum/version_control/monotone.rb', line 86

def stanzas(first_item, items)
  stanzas = []
  current_stanza = {}
  items.each do |name, value|
    if name == first_item
      current_stanza = {}
      stanzas << current_stanza
    end
    current_stanza[name] = value
  end
  return stanzas
end