Class: CemAcpt::Config::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/cem_acpt/config/base.rb

Overview

Base class for other config classes Child classes should provide the following constant:

- VALID_KEYS - provide an array of valid top-level keys for the config as symbols

Child classes should implement the following methods:

- defaults - provide a hash of default values for the config
- env_var_prefix - provide a string to prefix environment variables with (defaults to 'CEM_ACPT').
                   This will be converted to uppercase, have all non-alphanumeric characters replaced with
                   underscores, and be joined with the key name with an underscore to form the environment
                   variable name.

However, they can override any of the methods in this class.

Direct Known Subclasses

CemAcpt, CemAcptImage

Constant Summary collapse

BASE_VALID_KEYS = 
%i[
  ci_mode
  config_file
  log_level
  log_file
  log_format
  no_destroy_nodes
  no_ephemeral_ssh_key
  platform
  provisioner
  puppet
  quiet
  terraform
  user_config
  verbose
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts: {}, config_file: nil, load_user_config: true) ⇒ Base

Returns a new instance of Base.



45
46
47
48
 
# File 'lib/cem_acpt/config/base.rb', line 45

def initialize(opts: {}, config_file: nil, load_user_config: true)
  @load_user_config = load_user_config
  load(opts: opts, config_file: config_file)
end

Instance Attribute Details

#config ⇒ Object (readonly) Also known as: to_h

Returns the value of attribute config.



43
44
45
 
# File 'lib/cem_acpt/config/base.rb', line 43

def config
  @config
end

#env_vars ⇒ Object (readonly)

Returns the value of attribute env_vars.



43
44
45
 
# File 'lib/cem_acpt/config/base.rb', line 43

def env_vars
  @env_vars
end

Instance Method Details

#[](key) ⇒ Object 



120
121
122
123
124
125
126
127
128
 
# File 'lib/cem_acpt/config/base.rb', line 120

def [](key)
  if key.is_a?(Symbol)
    @config[key].dup
  elsif key.is_a?(String)
    get(key)
  else
    raise ArgumentError, "Invalid key type '#{key.class}'"
  end
end

#ci_mode? ⇒ Boolean Also known as: ci?

Returns:

  • (Boolean) 


143
144
145
 
# File 'lib/cem_acpt/config/base.rb', line 143

def ci_mode?
  !!get('ci_mode') || !!(ENV['GITHUB_ACTIONS'] || ENV['CI'])
end

#debug_mode? ⇒ Boolean Also known as: debug?

Returns:

  • (Boolean) 


148
149
150
 
# File 'lib/cem_acpt/config/base.rb', line 148

def debug_mode?
  get('log_level') == 'debug'
end

#defaults ⇒ Hash

Returns The default configuration.

Returns:

  • (Hash) —

    The default configuration



69
70
71
 
# File 'lib/cem_acpt/config/base.rb', line 69

def defaults
  {}
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


139
140
141
 
# File 'lib/cem_acpt/config/base.rb', line 139

def empty?
  @config.empty?
end

#env_var_prefix ⇒ String

Returns The prefix for environment variables.

Returns:

  • (String) —

    The prefix for environment variables



55
56
57
 
# File 'lib/cem_acpt/config/base.rb', line 55

def env_var_prefix
  'CEM_ACPT'
end

#explain ⇒ Object

Returns a string representation of how the config was loaded



102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
 
# File 'lib/cem_acpt/config/base.rb', line 102

def explain
  explanation = {}
  %i[defaults env_vars user_config config_from_file options].each do |source|
    source_vals = send(source).dup
    next if source_vals.nil? || source_vals.empty?

    # The loop below will overwrite the value of explanation[key] if the same key is found in multiple sources
    # This is intentional, as the last source to set the value is the one that should be used
    source_vals.each do |key, value|
      explanation[key] = source if @config.dget(key.to_s) == value
    end
  end
  explained = explanation.each_with_object([]) do |(key, value), ary|
    ary << "Key '#{key}' from source '#{value}'"
  end
  explained.join("\n")
end

#get(dot_key) ⇒ Object Also known as: dget 



130
131
132
 
# File 'lib/cem_acpt/config/base.rb', line 130

def get(dot_key)
  @dot_key_cache[dot_key] ||= @config.dget(dot_key).dup
end

#has?(dot_key) ⇒ Boolean

Returns:

  • (Boolean) 


135
136
137
 
# File 'lib/cem_acpt/config/base.rb', line 135

def has?(dot_key)
  !!get(dot_key)
end

#inspect ⇒ Object 



50
51
52
 
# File 'lib/cem_acpt/config/base.rb', line 50

def inspect
  "#<#{self.class}:#{object_id.to_s(16)}>"
end

#load(opts: {}, config_file: nil) ⇒ self

Load the configuration from the environment variables, config file, and opts The order of precedence is:

1. environment variables
2. user config file (config.yaml in user_config_dir)
3. specified config file (if it exists)
4. opts
5. static options (set in this class)

Parameters:

  • opts (Hash) (defaults to: {}) —

    The options to load

  • config_file (String) (defaults to: nil) —

    The config file to load

Returns:

  • (self) —

    This object with the config loaded



83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/cem_acpt/config/base.rb', line 83

def load(opts: {}, config_file: nil)
  create_config_dirs!
  init_config!(opts: opts, config_file: config_file)
  add_env_vars!(@config)
  @config.merge!(user_config) if user_config && @load_user_config
  @config.merge!(config_from_file) if config_from_file
  @config.merge!(@options) if @options
  add_static_options!(@config)
  @config.format! # Symbolize keys of all hashes
  validate_config!
  @dot_key_cache = {}
  # Freeze the config so it can't be modified
  # This helps with thread safety and deterministic behavior
  @config.freeze
  self
end

#quiet_mode? ⇒ Boolean Also known as: quiet?

Returns:

  • (Boolean) 


158
159
160
 
# File 'lib/cem_acpt/config/base.rb', line 158

def quiet_mode?
  !!get('quiet')
end

#to_json(*args) ⇒ Object 



167
168
169
 
# File 'lib/cem_acpt/config/base.rb', line 167

def to_json(*args)
  @config.to_json(*args)
end

#to_yaml ⇒ Object 



163
164
165
 
# File 'lib/cem_acpt/config/base.rb', line 163

def to_yaml
  @config.to_yaml
end

#valid_keys ⇒ Array<Symbol>

Returns Valid top-level keys for the config.

Returns:

  • (Array<Symbol>) —

    Valid top-level keys for the config



60
61
62
63
64
65
66
 
# File 'lib/cem_acpt/config/base.rb', line 60

def valid_keys
  if self.class.const_defined?(:VALID_KEYS)
    (BASE_VALID_KEYS + self.class.const_get(:VALID_KEYS)).uniq
  else
    BASE_VALID_KEYS
  end
end

#verbose_mode? ⇒ Boolean Also known as: verbose?

Returns:

  • (Boolean) 


153
154
155
 
# File 'lib/cem_acpt/config/base.rb', line 153

def verbose_mode?
  !!get('verbose')
end