Class: Pups::Config
- Inherits:
-
Object
- Object
- Pups::Config
- Defined in:
- lib/pups/config.rb
Instance Attribute Summary collapse
-
#config ⇒ Object
readonly
Returns the value of attribute config.
-
#params ⇒ Object
readonly
Returns the value of attribute params.
Class Method Summary collapse
- .combine_template_and_process_env(config, env) ⇒ Object
- .interpolate_params(cmd, params) ⇒ Object
- .load_config(config, ignored = nil, tags: tags = nil, skip_tags: skip_tags = nil) ⇒ Object
- .load_file(config_file, ignored = nil, tags: tags = nil, skip_tags: skip_tags = nil) ⇒ Object
- .prepare_env_template_vars(env_template, env) ⇒ Object
- .transform_config_with_templated_vars(env_template, to_transform) ⇒ Object
Instance Method Summary collapse
-
#filter_tags(include_tags: include_tags = nil, exclude_tags: exclude_tags = nil) ⇒ Object
Filter run commands by tag: by default, keep all commands that contain tags.
- #generate_docker_run_arguments ⇒ Object
-
#initialize(config, ignored = nil, tags: tags = nil, skip_tags: skip_tags = nil) ⇒ Config
constructor
A new instance of Config.
- #inject_hooks ⇒ Object
- #interpolate_params(cmd) ⇒ Object
- #run ⇒ Object
- #run_commands ⇒ Object
Constructor Details
#initialize(config, ignored = nil, tags: tags = nil, skip_tags: skip_tags = nil) ⇒ Config
Returns a new instance of Config.
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# File 'lib/pups/config.rb', line 7 def initialize( config, ignored = nil, tags: = nil, skip_tags: = nil ) @config = config # remove any ignored config elements prior to any more processing ignored&.each { |e| @config.delete(e) } (include_tags: , exclude_tags: ) # set some defaults to prevent checks in various functions %w[env_template env labels params].each do |key| @config[key] = {} unless @config.has_key?(key) end # Order here is important. Pups::Config.combine_template_and_process_env(@config, ENV) Pups::Config.prepare_env_template_vars(@config["env_template"], ENV) # Templating is supported in env and label variables. Pups::Config.transform_config_with_templated_vars( @config["env_template"], ENV ) Pups::Config.transform_config_with_templated_vars( @config["env_template"], @config["env"] ) Pups::Config.transform_config_with_templated_vars( @config["env_template"], @config["labels"] ) @params = @config["params"] ENV.each { |k, v| @params["$ENV_#{k}"] = v } inject_hooks end |
Instance Attribute Details
#config ⇒ Object (readonly)
Returns the value of attribute config.
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# File 'lib/pups/config.rb', line 5 def config @config end |
#params ⇒ Object (readonly)
Returns the value of attribute params.
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# File 'lib/pups/config.rb', line 5 def params @params end |
Class Method Details
.combine_template_and_process_env(config, env) ⇒ Object
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# File 'lib/pups/config.rb', line 103 def self.combine_template_and_process_env(config, env) # Merge all template env variables and process env variables, so that env # variables can be provided both by configuration and runtime variables. config["env"].each { |k, v| env[k] = v.to_s } end |
.interpolate_params(cmd, params) ⇒ Object
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# File 'lib/pups/config.rb', line 236 def self.interpolate_params(cmd, params) return unless cmd processed = cmd.dup params.each { |k, v| processed.gsub!("$#{k}", v.to_s) } processed end |
.load_config(config, ignored = nil, tags: tags = nil, skip_tags: skip_tags = nil) ⇒ Object
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# File 'lib/pups/config.rb', line 67 def self.load_config( config, ignored = nil, tags: = nil, skip_tags: = nil ) Config.new( YAML.safe_load(config), ignored, tags: , skip_tags: ) end |
.load_file(config_file, ignored = nil, tags: tags = nil, skip_tags: skip_tags = nil) ⇒ Object
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# File 'lib/pups/config.rb', line 48 def self.load_file( config_file, ignored = nil, tags: = nil, skip_tags: = nil ) Config.new( YAML.load_file(config_file), ignored, tags: , skip_tags: ) rescue Exception warn "Failed to parse #{config_file}" warn "This is probably a formatting error in #{config_file}" warn "Cannot continue. Edit #{config_file} and try again." raise end |
.prepare_env_template_vars(env_template, env) ⇒ Object
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# File 'lib/pups/config.rb', line 81 def self.prepare_env_template_vars(env_template, env) # Merge env_template variables from env and templates. env.each do |k, v| if k.include?("env_template_") key = k.gsub("env_template_", "") env_template[key] = v.to_s end end end |
.transform_config_with_templated_vars(env_template, to_transform) ⇒ Object
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# File 'lib/pups/config.rb', line 91 def self.transform_config_with_templated_vars(env_template, to_transform) # Transform any templated variables prior to copying to params. # This has no effect if no env_template was provided. env_template.each do |k, v| to_transform.each do |key, val| if val.to_s.include?("{{#{k}}}") to_transform[key] = val.gsub("{{#{k}}}", v.to_s) end end end end |
Instance Method Details
#filter_tags(include_tags: include_tags = nil, exclude_tags: exclude_tags = nil) ⇒ Object
Filter run commands by tag: by default, keep all commands that contain tags. If skip_tags argument is true, keep all commands that DO NOT contain tags.
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# File 'lib/pups/config.rb', line 111 def ( include_tags: = nil, exclude_tags: = nil ) if @config["run"] = @config["run"].select do |row| keep = false command = row.first if command[1].is_a?(Hash) tag = command[1]["tag"] keep = .include?(tag) end keep end end if @config["run"] = @config["run"].select do |row| keep = true command = row.first if command[1].is_a?(Hash) tag = command[1]["tag"] keep = !.include?(tag) end keep end end end |
#generate_docker_run_arguments ⇒ Object
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# File 'lib/pups/config.rb', line 180 def generate_docker_run_arguments output = [] output << Pups::Docker.generate_env_arguments(config["env"]) output << Pups::Docker.generate_link_arguments(config["links"]) output << Pups::Docker.generate_expose_arguments(config["expose"]) output << Pups::Docker.generate_volume_arguments(config["volumes"]) output << Pups::Docker.generate_label_arguments(config["labels"]) output.sort!.join(" ").strip end |
#inject_hooks ⇒ Object
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# File 'lib/pups/config.rb', line 140 def inject_hooks return unless hooks = @config["hooks"] run = @config["run"] positions = {} run.each do |row| next unless row.is_a?(Hash) command = row.first if command[1].is_a?(Hash) hook = command[1]["hook"] positions[hook] = row if hook end end hooks.each do |full, list| offset = nil name = nil if full =~ /^after_/ name = full[6..-1] offset = 1 end if full =~ /^before_/ name = full[7..-1] offset = 0 end index = run.index(positions[name]) if index && index >= 0 run.insert(index + offset, *list) else Pups.log.info "Skipped missing #{full} hook" end end end |
#interpolate_params(cmd) ⇒ Object
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# File 'lib/pups/config.rb', line 232 def interpolate_params(cmd) self.class.interpolate_params(cmd, @params) end |
#run ⇒ Object
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# File 'lib/pups/config.rb', line 190 def run run_commands rescue StandardError => e exit_code = 1 exit_code = e.exit_code if e.is_a?(Pups::ExecError) unless exit_code == 77 puts puts puts "FAILED" puts "-" * 20 puts "#{e.class}: #{e}" puts "Location of failure: #{e.backtrace[0]}" if @last_command puts "#{@last_command[:command]} failed with the params #{@last_command[:params].inspect}" end end exit exit_code end |
#run_commands ⇒ Object
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# File 'lib/pups/config.rb', line 209 def run_commands @config["run"]&.each do |item| item.each do |k, v| type = case k when "exec" Pups::ExecCommand when "merge" Pups::MergeCommand when "replace" Pups::ReplaceCommand when "file" Pups::FileCommand else raise SyntaxError, "Invalid run command #{k}" end @last_command = { command: k, params: v } type.run(v, @params) end end end |