Class: ChefCLI::Policyfile::GitLockFetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/chef-cli/policyfile/git_lock_fetcher.rb

Overview

A Policyfile lock fetcher that can read a lock file from a git repository.

Author:

  • Ryan Hass

  • Daniel DeLeo

Since:

  • 3.0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, source_options, storage_config) ⇒ GitLockFetcher

Initialize a GitLockFetcher

Parameters:

  • name (String) —

    The name of the policyfile

  • source_options (Hash) —

    A hash with a :path key pointing at the location of the lock

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 54

def initialize(name, source_options, storage_config)
  @name           = name
  @storage_config = storage_config
  @source_options = symbolize_keys(source_options)
  @revision = @source_options[:revision]
  @path     = @source_options[:path] || @source_options[:rel]
  @uri      = @source_options[:git]
  @branch   = @source_options[:branch]
  @tag      = @source_options[:tag]
  @ref      = @source_options[:ref]

  # The revision to parse
  @rev_parse = @source_options[:ref] || @source_options[:branch] || @source_options[:tag] || "master"
end

Instance Attribute Details

#branch ⇒ Object (readonly)

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 45

def branch
  @branch
end

#name ⇒ Object

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 38

def name
  @name
end

#path ⇒ Object (readonly)

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 44

def path
  @path
end

#ref ⇒ Object (readonly)

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 47

def ref
  @ref
end

#revision ⇒ Object (readonly)

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 43

def revision
  @revision
end

#source_options ⇒ Object

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 39

def source_options
  @source_options
end

#storage_config ⇒ Object

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 40

def storage_config
  @storage_config
end

#tag ⇒ Object (readonly)

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 46

def tag
  @tag
end

#uri ⇒ Object (readonly)

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 42

def uri
  @uri
end

Instance Method Details

#apply_locked_source_options(options_from_lock) ⇒ Object

Applies source options from a lock file. This is used to make sure that the same policyfile lock is loaded that was locked

Parameters:

  • options_from_lock (Hash) —

    The source options loaded from a policyfile lock

Raises:

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 98

def apply_locked_source_options(options_from_lock)
  options = options_from_lock.inject({}) do |acc, (key, value)|
    acc[key.to_sym] = value
    acc
  end
  source_options.merge!(options)
  raise ChefCLI::InvalidLockfile, "Invalid source_options provided from lock data: #{options_from_lock_file.inspect}" unless valid?
end

#errors ⇒ Array<String>

Check the options provided when craeting this class for errors

Returns:

  • (Array<String>) —

    A list of errors found

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 78

def errors
  error_messages = []
  [:git].each do |key|
    error_messages << "include_policy for #{name} is missing key #{key}" unless source_options[key]
  end

  error_messages
end

#lock_data ⇒ Hash

Returns of the policyfile lock data.

Returns:

  • (Hash) —

    of the policyfile lock data

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 108

def lock_data
  @lock_data ||= fetch_lock_data.tap do |data|
    data["cookbook_locks"].each do |cookbook_name, cookbook_lock|
      if cookbook_lock["source_options"].key?("path")
        cookbook_lock["source_options"].tap do |opt|
          opt["git"]      = uri unless opt.key?("git")
          opt["revision"] = revision unless opt.key?("revision")
          opt["branch"]   = branch unless opt.key?("branch") || branch.nil?
          opt["tag"]      = tag unless opt.key?("tag") || branch.nil?
          opt["ref"]      = ref unless opt.key?("ref") || ref.nil?

          path_keys = %w{path rel}.map { |path_key| path_key if opt.key?(path_key) }.compact

          path_keys.each do |name|
            # We can safely grab the entire cookbook when the Policyfile defines a cookbook path of itself (".")
            if opt[name] == "."
              opt.delete(name)
              next
            end

            # Mutate the path key to a rel key so that we identify the source_type
            # as a git repo and not a local directory. Git also doesn't like paths
            # prefixed with `./` and cannot use relative paths outside the repo.
            # http://rubular.com/r/JYpdYHT19p
            pattern = %r{(^../)|(^./)}
            opt["rel"] = opt[name].gsub(pattern, "")
          end

          # Delete the path key if present to ensure we use the git source_type
          opt.delete("path")
        end
      end # cookbook_lock["source_options"]
    end # data["cookbook_locks"].each
  end # fetch_lock_data.tap

  @lock_data
end

#source_options_for_lock ⇒ Hash

Returns The source_options that describe how to fetch this exact lock again.

Returns:

  • (Hash) —

    The source_options that describe how to fetch this exact lock again

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 88

def source_options_for_lock
  source_options.merge({
                         revision: revision,
                       })
end

#valid? ⇒ True, False

Returns:

  • (True) —

    if there were no errors with the provided source_options

  • (False) —

    if there were errors with the provided source_options

Since:

  • 3.0



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# File 'lib/chef-cli/policyfile/git_lock_fetcher.rb', line 71

def valid?
  errors.empty?
end