Module: AnsibleMakeRole

Defined in:
lib/ansible_make_role.rb,
lib/ansible_make_role/version.rb

Defined Under Namespace

Classes: Error

Constant Summary collapse

ROLE_FILE_NAME = 
"role.yml"
DEFAULT_FORCE_FLAG = 
false
DEFAULT_GIT_FLAG = 
false
VERSION = 
"0.7.6"

Class Method Summary collapse

Class Method Details

.clean(role_dir) ⇒ Object 



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# File 'lib/ansible_make_role.rb', line 40

def self.clean(role_dir)
  changed = false
  wrap_system_call_error {
    File.exists?("#{role_dir}/#{ROLE_FILE_NAME}") or raise Error "Not a role directory: #{role_dir}"
    for file in Dir["#{role_dir}/*/main.yml"]
      FileUtils.rm(file)
      dir = File.dirname(file)
      FileUtils.rmdir(dir) if File.empty?(dir)
      changed = true
    end
    git_file = "#{role_dir}/.gitignore"
    if git && File.exist?(git_file)
      FileUtils.rm(git_file)
      changed = true
    end
  }
  return changed
end

.compile_role(source, target) ⇒ Object

source is a single-file role and target is the role directory. Returns list generated files



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# File 'lib/ansible_make_role.rb', line 71

def self.compile_role(source, target)
  meta = []
  sections = {
    "defaults" => [],
    "vars" => [],
    "tasks" => [],
    "handlers" => []
  }
  current_section = meta

  File.readlines(source).each { |line|
    line.chomp!
    next if line =~ /^---\s*$/
    if line =~ /^(\w+)\s*:/
      section = $1
      if sections.key?(section) # Built-in section?
        current_section = sections[section]
      else # Everything else goes to the meta file incl. section header
        current_section = meta
        current_section << line
      end
    else
      current_section << line
    end
  }

  generated_files = []
  (sections.to_a + [["meta", meta]]).each { |section, lines|
    next if lines.empty? && section != "meta"
    next if lines.all? { |l| l =~ /^\s*$/ }
    dir = "#{target}/#{section}"
    file = "#{dir}/main.yml"
    generated_files << file

    FileUtils.mkdir_p(dir)
    File.open(file, "w") { |f|
      f.puts "---" if section != "meta"
      unindent(lines).each { |l| f.puts l }
    }
  }
  generated_files
end

.force ⇒ Object 



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# File 'lib/ansible_make_role.rb', line 14

def self.force() @force end

.force=(value) ⇒ Object 



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# File 'lib/ansible_make_role.rb', line 15

def self.force=(value) @force = value end

.git ⇒ Object 



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# File 'lib/ansible_make_role.rb', line 18

def self.git() @git end

.git=(value) ⇒ Object 



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# File 'lib/ansible_make_role.rb', line 19

def self.git=(value) @git = value end

.make(role_dir) ⇒ Object 



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# File 'lib/ansible_make_role.rb', line 21

def self.make(role_dir)
  wrap_system_call_error {
    role_file = "#{role_dir}/#{ROLE_FILE_NAME}"
    meta_file = "#{role_dir}/meta/main.yml"
    if force || !File.exist?(meta_file) || File.mtime(role_file) > File.mtime(meta_file)
      files = compile_role(role_file, role_dir)
      if git
        git_file = "#{role_dir}/.gitignore"
        FileUtils.rm_f(git_file)
        if !files.empty?
          lines = files.map { |f| "./" + f.split("/")[-2..-1].join("/") + "\n" }.join
          IO.write(git_file, lines)
        end
      end
      true
    end
  }
end

.unindent(lines) ⇒ Object

Unindent lines by the indentation of the first non-comment and non-blank line



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# File 'lib/ansible_make_role.rb', line 116

def self.unindent(lines)
  line = lines.find { |l| l !~ /^\s*#/ && l !~ /^\s*$/ }
  return lines if line.nil?
  line =~ /^(\s*)/
  prefix = $1.dup
  lines.map { |l| l.sub(/^#{prefix}/, "") }
end

.wrap_system_call_error(&block) ⇒ Object

Turn a SystemCallError into a AnsibleMakeRole::Error exception and remove Ruby reference from message (eg. “@ rb_sysopen”)



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# File 'lib/ansible_make_role.rb', line 62

def self.wrap_system_call_error(&block)
  begin
    yield
  rescue SystemCallError => ex
    raise Error.new(ex.message.sub(/ @ \w+/, ""))
  end
end