Enable verbose mode when PRODUCER_VERBOSE is set

features/cli/verbose.feature

@@ -41,3 +41,8 @@ Feature: CLI verbose option
       """
     When I successfully execute the recipe with option -v
     Then the output must match /action: .{,70}$/
+
+  Scenario: enables verbose mode from the environment
+    Given I set the environment variable "PRODUCER_VERBOSE"
+    When I successfully execute the recipe
+    Then the output must contain "Task"

features/steps/environment_steps.rb

@@ -0,0 +1,3 @@
+Given /^I set the environment variable "([^"]+)"$/ do |variable|
+  set_env variable, 'yes'
+end

lib/producer/core/cli.rb

@@ -10,9 +10,13 @@ module Producer
 
       ARGUMENTS_SEPARATOR = '--'.freeze
 
+      ENV_VERBOSE_KEY = 'PRODUCER_VERBOSE'.freeze
+
       class << self
         def run!(arguments, stdin: $stdin, stdout: $stdout, stderr: $stderr)
-          cli = new(arguments, stdin: stdin, stdout: stdout, stderr: stderr)
+          cli = new(
+            arguments, ENV, stdin: stdin, stdout: stdout, stderr: stderr
+          )
           begin
             cli.parse_arguments!
             cli.run
@@ -32,12 +36,14 @@ module Producer
 
       attr_reader :arguments, :stdin, :stdout, :stderr, :env
 
-      def initialize(args, stdin: $stdin, stdout: $stdout, stderr: $stderr)
+      def initialize(args, environment, stdin: $stdin, stdout: $stdout, stderr: $stderr)
         @arguments  = args
         @stdin      = stdin
         @stdout     = stdout
         @stderr     = stderr
         @env        = build_env
+
+        configure_environment! environment
       end
 
       def parse_arguments!
@@ -65,6 +71,10 @@ module Producer
         Env.new(input: @stdin, output: @stdout, error_output: @stderr)
       end
 
+      def configure_environment!(environment)
+        @env.verbose = true if environment.key? ENV_VERBOSE_KEY
+      end
+
       def split_arguments_lists(arguments)
         arguments
           .chunk  { |e| e == ARGUMENTS_SEPARATOR }

spec/producer/core/cli_spec.rb

@@ -8,15 +8,16 @@ module Producer::Core
     let(:options)     { [] }
     let(:recipe_file) { fixture_path_for 'recipes/some_recipe.rb' }
     let(:arguments)   { [*options, recipe_file] }
+    let(:environment) { {} }
 
-    subject(:cli)     { described_class.new(arguments) }
+    subject(:cli)     { described_class.new(arguments, environment) }
 
     describe '.run!' do
       subject(:run!) { described_class.run! arguments }
 
-      it 'builds a new CLI instance with given arguments' do
+      it 'builds a new CLI instance with given arguments and environment' do
         expect(described_class)
-          .to receive(:new).with(arguments, anything).and_call_original
+          .to receive(:new).with(arguments, ENV, anything).and_call_original
         run!
       end
 
@@ -75,6 +76,14 @@ module Producer::Core
       it 'assigns CLI stderr as the env error output' do
         expect(cli.env.error_output).to be cli.stderr
       end
+
+      context 'when PRODUCER_VERBOSE environment variable is set' do
+        before { environment['PRODUCER_VERBOSE'] = 'yes' }
+
+        it 'enables env verbose mode' do
+          expect(cli.env).to be_verbose
+        end
+      end
     end
 
     describe '#parse_arguments!' do